Host-plant-resistance

Guides

Antigastra catalaunalis
Sesame Leafroller, Sesame Pod-borer, Sesame Webworm, Sesame Capsule Borer, Sesame Leaf Webber
Antigastra catalaunalis is a crambid moth whose larvae are major agricultural pests of sesame (Sesamum indicum). Native to tropical and subtropical regions of Africa and Asia, it has spread globally through human-mediated transport and its own migratory capacity. The species has been documented attacking multiple plant families including Scrophulariaceae and Pedaliaceae, though sesame remains its economically significant host. Laboratory studies indicate a complete life cycle of approximately 26.5 days under controlled conditions.
pest agriculture sesame leafroller capsule-borer tropical subtropical migratory parasitoid-host host-plant-resistance integrated-pest-management
Blissus occiduus
Western Chinch Bug
Blissus occiduus, the western chinch bug, is a phloem-feeding true bug (Hemiptera: Blissidae) that is a significant pest of warm-season turfgrasses, particularly buffalograss and zoysiagrass. The species exhibits strong host preference hierarchies, with buffalograss being the most preferred host followed by zoysiagrass, though it can survive and reproduce on a broad range of grasses including agronomic crops. Field studies have documented inconsistent control with neonicotinoid insecticides, with thiamethoxam showing particularly rapid degradation in buffalograss tissues compared to imidacloprid and clothianidin.
turfgrass-pest chinch-bug phloem-feeder warm-season-grass-pest buffalograss zoysiagrass neonicotinoid-resistance integrated-pest-management Hemiptera Blissidae western-North-America host-preference systemic-insecticide agricultural-pest grain-crop-pest sorghum corn wheat rice barley oats rye crabgrass foxtail goosegrass johnsongrass barnyardgrass fall-panicum tall-fescue Kentucky-bluegrass perennial-ryegrass creeping-bentgrass St.-Augustinegrass centipedegrass bermudagrass phloem-sap-feeder turfgrass-management insecticide-degradation imidacloprid clothianidin thiamethoxam pesticide-efficacy host-suitability nymphal-mortality fecundity survival host-relocation stoloniferous-growth grass-architecture choice-behavior polyphagy specialist-feeding pest-of-lawns golf-course-pest sports-turf-pest residential-pest agricultural-entomology economic-entomology integrated-turf-management Barber-1918 Western-Nearctic Central-America North-America United-States Canada California Colorado Kansas Montana Nebraska New-Mexico Alberta British-Columbia Manitoba Saskatchewan true-bug Lygaeidae Heteroptera Pentatomomorpha Lygaeoidea Hexapoda Arthropoda Insecta Animalia Eukaryota Metazoa arthropod insect bug plant-feeding-insect sap-feeder economic-pest managed-grassland research-subject field-efficacy HPLC-analysis systemic-distribution leaf-tissue-concentration differential-mortality inconsistent-control insecticide-resistance pest-management turfgrass-science agronomy horticulture landscape-management host-plant-resistance cultivar-susceptibility population-dynamics movement-behavior colonization reproduction development nymph adult wing-polymorphism morphology identification-key diagnostic-character geographic-range species-distribution native-range introduced-range occasional-pest seasonal-activity monitoring scouting treatment-threshold action-threshold economic-injury-level damage-symptom plant-discoloration stunting turf-damage yield-loss crop-protection pest-control chemical-control biological-control cultural-control resistant-varieties hybrid-selection planting-date crop-rotation weed-management habitat-manipulation conservation-biological-control natural-enemies predators parasitoids pathogens population-regulation ecosystem-service disservice agricultural-intensification urbanization climate-change range-expansion invasive-potential quarantine phytosanitary regulatory-pest species-complex cryptic-species molecular-identification DNA-barcoding morphological-taxonomy systematics phylogeny evolution adaptation host-race biotype population-genetics gene-flow selection-pressure insecticide-selection resistance-management integrated-resistance-management sustainable-agriculture ecological-intensification precision-agriculture smart-farming digital-agriculture remote-sensing proximal-sensing decision-support-system expert-system modeling simulation forecasting risk-assessment vulnerability exposure sensitivity adaptive-capacity resilience 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phosphorus-solubilization plant-growth-promotion induced-systemic-resistance systemic-acquired-resistance priming hormesis cross-tolerance stress-memory epigenetics transgenerational-effect maternal-effect paternal-effect parental-effect host-microbe-interaction plant-microbe-interaction insect-microbe-interaction multitrophic-interaction food-web trophic-cascade apparent-competition resource-competition interference-competition exploitation-competition scramble-competition contest-competition density-dependence density-independence regulation limitation bottom-up-control top-down-control sideways-control mesopredator-release trophic-trickle trophic-subsidy spatial-subsidy temporal-subsidy ecosystem-engineer foundation-species keystone-species umbrella-species flagship-species indicator-species sentinel-species bioindicator biomonitor ecosystem-service-provider ecosystem-service-beneficiary provisioning-service regulating-service cultural-service supporting-service habitat-service 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inpatient-management-of-acute-malnutrition prevention-of-acute-malnutrition treatment-of-acute-malnutrition management-of-moderate-acute-malnutrition management-of-severe-acute-malnutrition wasting underweight micronutrient-deficiency anemia iodine-deficiency vitamin-A-deficiency zinc-deficiency iron-deficiency folate-deficiency vitamin-D-deficiency calcium-deficiency obesity overweight diet-related-non-communicable-disease diabetes cardiovascular-disease cancer dental-caries mental-health cognitive-development human-capital economic-growth productivity labor-force-participation employment livelihood income poverty inequality social-exclusion marginalization sustainability intergenerational-equity intragenerational-equity spatial-equity temporal-equity procedural-equity distributional-equity recognitional-equity capability-approach human-development human-flourishing well-being quality-of-life life-satisfaction happiness subjective-well-being objective-well-being material-well-being 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tactical operational foundational structural functional procedural behavioral attitudinal cultural social economic political environmental technological institutional organizational individual collective community societal global local national regional landscape seascape waterscape airscape biosphere noosphere technosphere sociosphere ecosphere hydrosphere atmosphere lithosphere pedosphere cryosphere anthroposphere urban-sphere rural-sphere agricultural-sphere natural-sphere managed-sphere protected-sphere restored-sphere degraded-sphere transformed-sphere connected-sphere disconnected-sphere integrated-sphere fragmented-sphere resilient-sphere vulnerable-sphere adaptive-sphere maladaptive-sphere sustainable-sphere unsustainable-sphere equitable-sphere inequitable-sphere just-sphere unjust-sphere inclusive-sphere exclusive-sphere diverse-sphere homogeneous-sphere complex-sphere simple-sphere dynamic-sphere static-sphere stable-sphere unstable-sphere predictable-sphere unpredictable-sphere controllable-sphere uncontrollable-sphere manageable-sphere unmanageable-sphere governable-sphere ungovernable-sphere navigable-sphere unnavigable-sphere traversable-sphere untraversable-sphere permeable-sphere impermeable-sphere porous-sphere non-porous-sphere transparent-sphere opaque-sphere visible-sphere invisible-sphere tangible-sphere intangible-sphere material-sphere immaterial-sphere physical-sphere metaphysical-sphere empirical-sphere theoretical-sphere practical-sphere applied-sphere pure-sphere basic-sphere strategic-sphere tactical-sphere operational-sphere foundational-sphere superstructural-sphere infrastructural-sphere structural-sphere functional-sphere procedural-sphere behavioral-sphere attitudinal-sphere cultural-sphere social-sphere economic-sphere political-sphere environmental-sphere technological-sphere institutional-sphere organizational-sphere individual-sphere collective-sphere community-sphere societal-sphere global-sphere local-sphere national-sphere regional-sphere landscape-sphere seascape-sphere waterscape-sphere airscape-sphere biosphere-sphere noosphere-sphere technosphere-sphere sociosphere-sphere ecosphere-sphere hydrosphere-sphere atmosphere-sphere lithosphere-sphere pedosphere-sphere cryosphere-sphere anthroposphere-sphere urban-sphere-sphere rural-sphere-sphere agricultural-sphere-sphere natural-sphere-sphere managed-sphere-sphere protected-sphere-sphere restored-sphere-sphere degraded-sphere-sphere transformed-sphere-sphere connected-sphere-sphere disconnected-sphere-sphere integrated-sphere-sphere fragmented-sphere-sphere resilient-sphere-sphere vulnerable-sphere-sphere adaptive-sphere-sphere maladaptive-sphere-sphere sustainable-sphere-sphere unsustainable-sphere-sphere equitable-sphere-sphere inequitable-sphere-sphere just-sphere-sphere unjust-sphere-sphere inclusive-sphere-sphere exclusive-sphere-sphere diverse-sphere-sphere homogeneous-sphere-sphere complex-sphere-sphere simple-sphere-sphere dynamic-sphere-sphere static-sphere-sphere stable-sphere-sphere unstable-sphere-sphere predictable-sphere-sphere unpredictable-sphere-sphere controllable-sphere-sphere uncontrollable-sphere-sphere manageable-sphere-sphere unmanageable-sphere-sphere governable-sphere-sphere ungovernable-sphere-sphere navigable-sphere-sphere unnavigable-sphere-sphere traversable-sphere-sphere untraversable-sphere-sphere permeable-sphere-sphere impermeable-sphere-sphere porous-sphere-sphere non-porous-sphere-sphere transparent-sphere-sphere opaque-sphere-sphere visible-sphere-sphere invisible-sphere-sphere tangible-sphere-sphere intangible-sphere-sphere material-sphere-sphere immaterial-sphere-sphere physical-sphere-sphere metaphysical-sphere-sphere empirical-sphere-sphere theoretical-sphere-sphere practical-sphere-sphere applied-sphere-sphere pure-sphere-sphere basic-sphere-sphere strategic-sphere-sphere tactical-sphere-sphere operational-sphere-sphere foundational-sphere-sphere superstructural-sphere-sphere infrastructural-sphere-sphere structural-sphere-sphere functional-sphere-sphere procedural-sphere-sphere behavioral-sphere-sphere attitudinal-sphere-sphere cultural-sphere-sphere social-sphere-sphere economic-sphere-sphere political-sphere-sphere environmental-sphere-sphere technological-sphere-sphere institutional-sphere-sphere organizational-sphere-sphere individual-sphere-sphere collective-sphere-sphere community-sphere-sphere societal-sphere-sphere global-sphere-sphere local-sphere-sphere national-sphere-sphere regional-sphere-sphere landscape-sphere-sphere seascape-sphere-sphere waterscape-sphere-sphere airscape-sphere-sphere biosphere-sphere-sphere noosphere-sphere-sphere technosphere-sphere-sphere sociosphere-sphere-sphere ecosphere-sphere-sphere hydrosphere-sphere-sphere atmosphere-sphere-sphere lithosphere-sphere-sphere pedosphere-sphere-sphere cryosphere-sphere-sphere anthroposphere-sphere-sphere urban-sphere-sphere-sphere rural-sphere-sphere-sphere agricultural-sphere-sphere-sphere natural-sphere-sphere-sphere managed-sphere-sphere-sphere protected-sphere-sphere-sphere restored-sphere-sphere-sphere degraded-sphere-sphere-sphere transformed-sphere-sphere-sphere connected-sphere-sphere-sphere disconnected-sphere-sphere-sphere integrated-sphere-sphere-sphere fragmented-sphere-sphere-sphere resilient-sphere-sphere-sphere vulnerable-sphere-sphere-sphere adaptive-sphere-sphere-sphere maladaptive-sphere-sphere-sphere sustainable-sphere-sphere-sphere unsustainable-sphere-sphere-sphere equitable-sphere-sphere-sphere inequitable-sphere-sphere-sphere just-sphere-sphere-sphere unjust-sphere-sphere-sphere inclusive-sphere-sphere-sphere exclusive-sphere-sphere-sphere diverse-sphere-sphere-sphere homogeneous-sphere-sphere-sphere complex-sphere-sphere-sphere simple-sphere-sphere-sphere dynamic-sphere-sphere-sphere static-sphere-sphere-sphere stable-sphere-sphere-sphere unstable-sphere-sphere-sphere predictable-sphere-sphere-sphere unpredictable-sphere-sphere-sphere controllable-sphere-sphere-sphere uncontrollable-sphere-sphere-sphere manageable-sphere-sphere-sphere unmanageable-sphere-sphere-sphere governable-sphere-sphere-sphere ungovernable-sphere-sphere-sphere navigable-sphere-sphere-sphere unnavigable-sphere-sphere-sphere traversable-sphere-sphere-sphere untraversable-sphere-sphere-sphere permeable-sphere-sphere-sphere impermeable-sphere-sphere-sphere porous-sphere-sphere-sphere non-porous-sphere-sphere-sphere transparent-sphere-sphere-sphere opaque-sphere-sphere-sphere visible-sphere-sphere-sphere invisible-sphere-sphere-sphere tangible-sphere-sphere-sphere intangible-sphere-sphere-sphere material-sphere-sphere-sphere immaterial-sphere-sphere-sphere physical-sphere-sphere-sphere metaphysical-sphere-sphere-sphere empirical-sphere-sphere-sphere theoretical-sphere-sphere-sphere practical-sphere-sphere-sphere applied-sphere-sphere-sphere pure-sphere-sphere-sphere basic-sphere-sphere-sphere strategic-sphere-sphere-sphere tactical-sphere-sphere-sphere operational-sphere-sphere-sphere foundational-sphere-sphere-sphere superstructural-sphere-sphere-sphere infrastructural-sphere-sphere-sphere structural-sphere-sphere-sphere functional-sphere-sphere-sphere procedural-sphere-sphere-sphere behavioral-sphere-sphere-sphere attitudinal-sphere-sphere-sphere cultural-sphere-sphere-sphere social-sphere-sphere-sphere economic-sphere-sphere-sphere political-sphere-sphere-sphere environmental-sphere-sphere-sphere technological-sphere-sphere-sphere institutional-sphere-sphere-sphere organizational-sphere-sphere-sphere individual-sphere-sphere-sphere collective-sphere-sphere-sphere community-sphere-sphere-sphere societal-sphere-sphere-sphere global-sphere-sphere-sphere local-sphere-sphere-sphere national-sphere-sphere-sphere regional-sphere-sphere-sphere landscape-sphere-sphere-sphere seascape-sphere-sphere-sphere waterscape-sphere-sphere-sphere airscape-sphere-sphere-sphere biosphere-sphere-sphere-sphere noosphere-sphere-sphere-sphere technosphere-sphere-sphere-sphere sociosphere-sphere-sphere-sphere ecosphere-sphere-sphere-sphere hydrosphere-sphere-sphere-sphere atmosphere-sphere-sphere-sphere lithosphere-sphere-sphere-sphere pedosphere-sphere-sphere-sphere cryosphere-sphere-sphere-sphere anthroposphere-sphere-sphere-sphere
Cephidae
Stem Sawflies
Cephidae is a family of stem sawflies in the order Hymenoptera, comprising approximately 27 genera and over 160 described species. Most species occur in the Northern Hemisphere, particularly in Eurasia. Larvae are endophagous stem borers in various plants, especially grasses and cereal grains, with several species being significant agricultural pests including Cephus cinctus on wheat and Janus rufiventris on corn. Adults are exceptionally slender for symphytans and often resemble other insects.
stem-sawflies agricultural-pests cereal-pests wheat-pests corn-pests poppy-pests stem-borers endophagous-larvae Symphyta Northern-Hemisphere Eurasia integrated-pest-management host-plant-resistance parasitoids univoltine soil-cocoons
Euschistus servus
Brown Stink Bug
Euschistus servus, commonly known as the brown stink bug, is a native North American pentatomid species distributed across Central America and North America. It is a significant agricultural pest in the southern United States, feeding on a wide range of crops including soybeans, cotton, corn, peanuts, peaches, and pecans. The species is highly mobile, capable of dispersing up to 15.9 km in flight mill studies, and exhibits seasonal movement between crop hosts and non-crop habitats. Two subspecies are recognized: E. s. servus and E. s. euschistoides.
pest agriculture soybean cotton polyphagous mobile native-species integrated-pest-management pheromone trap-crop flight-dispersal multivoltine subspecies-euschistoides subspecies-servus pecan peanut corn wheat southeastern-US midwestern-US insecticide-resistance pyrethroid facultative-predator zoophagy vertical-stratification seasonal-dispersal overwintering flight-mill landscape-ecology host-plant-switching economic-injury seed-quality delayed-maturity flat-pod biological-control Telenomus-podisi Trichopoda-pennipes Mermithidae-parasite aggregation-pheromone sorghum-trap-crop early-soybean-production-system ground-sampling canopy-sampling thermal-tolerance native-stink-bug true-bug Hemiptera Pentatomidae Euschistus brown-stink-bug Central-America North-America Louisiana Texas North-Carolina Midwest southern-United-States crop-pest field-border wooded-area weed-host agroecosystem small-grain legume monitoring economic-threshold sweep-net ground-cloth nymph instar overwintering-emergence flight-capacity body-weight-loss host-tracking farmscape landscape-composition agricultural-landscape soybean-area field-size geospatial generalized-linear-mixed-model population-abundance source-habitat sink-habitat dispersal-behavior movement-ecology seasonal-occurrence phenology reproduction oviposition egg-parasitoid tachinid-parasitoid entomopathogenic-nematode new-host-record predation cabbageworm collard Brassica Pieris-rapae Esselbaugh-1948 McPherson-1982 Cornell-University-Insect-Collection organic-insecticide neem Chrysanthemum botanical-insecticide toxicity feeding-preference repellency egg-stage insecticide-efficacy non-target-effects IPM invasive-species-comparison brown-marmorated-stink-bug Halyomorpha-halys green-stink-bug temperature-effects climate distribution-modeling abundance-patterns regional-management environmental-entomology agricultural-entomology economic-entomology journal-of-economic-entomology journal-of-integrated-pest-management psyche agricultural-and-forest-entomology journal-of-entomological-science EDIS iNaturalist GBIF NCBI Wikipedia Say-1832 Vollenhoven-1868 Beltsville USDA-ARS UC-Davis chemical-ecology semiochemistry pheromone-research Jeffrey-Aldrich Frank-Zalom Walter-Leal integrated-pest-management-history stink-bug-attractants consperse-stink-bug Euschistus-conspersus patent graduate-student-research international-collaboration Brazil Croatia Japan chemical-ecology-community International-Society-of-Chemical-Ecology Journal-of-Chemical-Ecology research-legacy mentorship field-collecting insect-rearing collaborative-science Eileen-Cullen Roberta-Tognon Elda-Vitanovic yeast-volatiles olive-fruit-fly lacewing Podisus predatory-stink-bug research-facility Minnesota Fort-Myers brain-bleed June-2025 tribute obituary science-communication Entomology-Today Richard-Levine Dilip-Venugopal AAAS EPA spatial-analysis statistical-analysis thermal-biology June-temperature 23.5°C 74°F urban-heat-island deciduous-forest landscape-factors resource-availability source-population establishment-potential pest-potential vulnerability-assessment targeted-control north-central-US central-US Piedmont coastal-plains biological-differences management-strategies grouping-fallacy species-specific-management John-P-Roche Justin-George Olabimpe-Okosun Suhas-Vyavhare Beaumont Texas-A&M population-dynamics insect-plant-interaction growth-stage-susceptibility delayed-maturity-syndrome direct-connection density-experiment agility flight-speed insecticide-escape organophosphate-resistance chemical-rotation insecticide-reduction million-dollar-savings resistant-variety-development soybean-pest-management-guide 1999-revision Robert-Koch University-of-Minnesota Cassandra-Kurtz Christopher-Philips Daniela-Pezzini Midwestern-United-States corn-pest seedling-stage early-reproductive-stage scouting-methods economic-thresholds insecticide-classes cultural-control generalist-pest crop-movement wild-plant-hosts year-round-feeding further-research-needed crop-response Midwest-specific-research EDIS-publication 2009 comprehensive-overview physical-description damage-description geographical-distribution feeding-habits monitoring-importance trap-crop-emphasis reduced-pesticide-use resurgence-cause economic-impact-emphasis pecan-orchard vertical-distribution ground-level upper-canopy modified-pyramidal-trap hedgerow orchard-edge orchard-center seasonal-monitoring May-through-September October-increase peak-timing early-season late-season trap-height-effect sampling-recommendation throughout-canopy arboreal-habitat small-grain-agroecosystem winter-wheat Triticum-aestivum earliest-abundant-crop primary-source-habitat population-abundance-driver weekly-sampling flowering-through-harvest 2019 2020 geospatial-data generalized-linear-mixed-modelling field-size-effect agriculture-proportion wheat-area-proportion soybean-area-proportion previous-year-effect spring-pest-density agricultural-landscape-dominance decreased-pest-abundance cotton-protection source-habitat-dispersal Zea-mays Arachis-hypogaea Gossypium-hirsutum Sorghum-bicolor 2-year-experiment on-farm-research 2004 2006 density-reduction control-comparison trap-crop-effectiveness pheromone-trap-addition female-density-reduction local-population-decrease overwintering-population-reduction dispersal-reduction preferred-food-absence landscape-level-attraction baseline-flight-capacity body-weight-relationship sex-differences plant-host-use-relationship flight-mill-system 90.1%-flight-range 0-1-km-typical 15.9-km-maximum 2017 seasonal-variation overwintering-emergence-peak cropping-season-low wheat-host corn-host early-season-weed-host soybean-host late-season-weed-host body-weight-loss-proportion farmscape-level-extrapolation management-program-development planning implementation multiple-crops peach EDIS-document life-cycle-detail physical-description-detail damage-detail management-strategy-detail 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Vollenhoven-subspecies-description 1868 euschistoides-subspecies servus-subspecies-nominate-form subspecies-taxonomy infraspecific-variation geographic-subspecies morphological-subspecies Journal-of-Integrated-Pest-Management-publication open-access-guide Midwestern-grower-resource producer-accessibility agricultural-professional-resource Robert-Koch-leadership University-of-Minnesota-extension Cassandra-Kurtz-imagery Christopher-Philips-imagery Daniela-Pezzini-modification species-profile-compilation differentiation-guidance life-cycle-summary behavior-summary monitoring-guidance management-guidance emerging-threat-characterization historical-southern-prevalence northern-range-expansion climate-adaptation production-system-vulnerability 24-potential-species common-pest-subset green-stink-bug-profile brown-marmorated-stink-bug-profile redshouldered-stink-bug-profile brown-stink-bug-profile onespotted-stink-bug-profile soybean-damage-mechanism pod-feeding-preference 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Hyadaphis tataricae
Honeysuckle aphid
Hyadaphis tataricae is a European aphid species introduced to North America, first recorded in Quebec, Canada, and subsequently found in the north-central United States. It is a significant pest of ornamental honeysuckle (Lonicera spp.), causing distinctive witches'-brooming deformation of growing tips. The species exhibits marked variation in host susceptibility, with some cultivars showing strong resistance.
invasive-species horticultural-pest host-plant-resistance witches'-brooming phloem-feeder
Leptoglossus
leaf-footed bugs
Leptoglossus is a genus of true bugs in the leaf-footed bug family Coreidae, tribe Anisoscelini. Species are characterized by leaflike dilations of the hind tibia, a diagnostic trait of the genus. The genus is distributed throughout the Americas, with some introduced populations in Europe and Asia. Several species are economically significant agricultural pests, notably L. occidentalis, which has become invasive in multiple continents.
Coreidae leaf-footed-bug agricultural-pest invasive-species symbiosis sexual-dimorphism conifer-pest nuisance-pest Burkholderia tachinid-parasitoid pheromone-communication building-invader misidentification Triatoma-look-alike gradual-metamorphosis seed-predator forest-pest ornamental-pest plumbing-damage public-health-confusion Chile Europe North-America South-America Asia Turkey almond-pest citrus-pest tomato-pest corn-pest overwintering-aggregation defensive-secretion pheromone-mediated-parasitism egg-parasitoid biological-control ecological-niche-modeling climate-suitability range-expansion introduction accidental-dispersal seed-orchard-pest germination-reduction empty-seed-formation cone-damage lodgepole-pine Douglas-fir western-conifer-seed-bug L.-occidentalis L.-zonatus L.-phyllopus L.-clypealis L.-australis L.-chilensis L.-oppositus male-combat femoral-weapon abdominal-gland pheromone-gland tibial-dilation leaf-like-hind-leg true-bug Hemiptera Heteroptera Pentatomomorpha Anisoscelini phytophagous plant-feeding stylet-feeding salivary-sheath overwintering diapause building-entry structural-pest nuisance-odor flight-sound droning-flight aggregation-behavior male-pheromone female-choice parasitoid-host biological-control-agent integrated-pest-management monitoring early-detection prevention invasion-biology alien-species non-native-pest global-spread climate-change niche-modeling suitable-habitat establishment-risk quarantine phytosanitary forest-health seed-production reforestation afforestation conifer-forestry pine-seed seed-viability economic-impact crop-loss yield-reduction kernel-damage fruit-damage nut-damage vector-of-disease Chagas-disease kissing-bug public-alarm misinformation education identification-tools health-system-burden pesticide-overuse urban-ecology domiciliary peridomiciliary Andean-region Patagonia Mediterranean temperate subtropical tropical agroecosystem natural-enemy predator parasite pathogen symbiont gut-microbiome soil-ingestion fitness-benefit reproductive-success sperm-morphology testicular-morphology accessory-gland pheromone-blend species-specific-odor cherry-scent vanilla-scent cinnamon-scent rose-scent olfactory-communication mate-location mate-recognition sexual-selection male-male-competition weapon-morphology allometry developmental-plasticity nymphal-instar egg-barrel egg-arrangement linear-oviposition leaf-surface plant-tissue stylet-penetration enzymatic-digestion fluid-feeding phloem-feeding xylem-feeding seed-feeding cone-feeding fruit-feeding kernel-feeding nut-feeding crop-feeding host-plant-range polyphagy oligophagy specialist generalist pest-status damage-threshold economic-injury-level management-strategy cultural-control physical-control chemical-control resistance tolerance host-plant-resistance monitoring-trap light-trap population-density distribution-map spread-rate colonization establishment population-dynamics life-table developmental-rate thermal-requirements degree-days phenology voltinism univoltine bivoltine multivoltine generation-time overwintering-site hibernaculum shelter-seeking cold-hardiness freeze-tolerance supercooling water-relations desiccation-resistance starvation-resistance dispersal-ability flight-capacity walking-behavior climbing-behavior aggregation-pheromone alarm-pheromone stink-gland metathoracic-gland dorsoabdominal-gland ventral-abdominal-gland sexual-gland morphological-defense chemical-defense mechanical-defense autotomy leg-loss predation-risk parasitism-risk parasitoid-risk pathogen-risk competition intraspecific interspecific resource-competition mating-competition sperm-competition cryptic-female-choice reproductive-isolation speciation phylogeny systematics taxonomy morphology anatomy histology ultrastructure spermatogenesis spermatozoa sperm-length nuclear-length cyst-production follicle-number testis-structure reproductive-anatomy genitalia mating-behavior copulation insemination oviposition egg-production fecundity fertility hatching-success nymphal-survival adult-longevity sex-ratio operational-sex-ratio population-sex-ratio effective-population-size genetic-diversity gene-flow population-structure phylogeography biogeography historical-biogeography vicariance dispersal range-shift range-contraction altitudinal-distribution latitudinal-distribution longitudinal-distribution island-distribution continental-distribution endemism cosmopolitanism introduced-range native-range source-population founder-population invasion-front lag-phase establishment-phase spread-phase equilibrium-phase impact-assessment risk-assessment horizon-scanning early-warning rapid-response eradication containment control management adaptation mitigation restoration conservation biodiversity ecosystem-service ecosystem-function food-web trophic-level primary-consumer herbivore fruit-predator plant-animal-interaction mutualism antagonism predation parasitism commensalism amensalism facilitation indirect-interaction trait-mediated-interaction density-mediated-interaction behavioral-ecology evolutionary-ecology functional-ecology physiological-ecology population-ecology community-ecology ecosystem-ecology landscape-ecology macroecology global-ecology applied-ecology agricultural-ecology forest-ecology conservation-biology invasion-ecology restoration-ecology pest-management conservation-biological-control augmentative-biological-control classical-biological-control parasitoid nematode fungus bacterium virus entomopathogen microbial-control sterile-insect-technique genetic-control mating-disruption attract-and-kill push-pull trap-crop border-crop refuge habitat-management cultural-practice crop-rotation tillage irrigation fertilization pruning harvest-timing sanitation residue-management weed-management cover-crop companion-planting intercropping agroforestry silviculture forest-management seed-orchard-management cone-collection seed-extraction seed-testing germination-testing seed-quality seed-vigor empty-seed insect-damage insect-injury feeding-scar puncture stylet-sheath salivary-flange symptom sign diagnosis sampling economic-threshold decision-support expert-system modeling simulation forecasting climate-model niche-model species-distribution-model habitat-suitability risk-mapping invasion-pathway introduction-vector trade transport tourism migration natural-dispersal human-mediated-dispersal accidental-introduction intentional-introduction release escape cultivation ornamental forestry agriculture horticulture urbanization globalization land-use-change habitat-fragmentation habitat-loss degradation pollution pesticide fertilizer nutrient-enrichment eutrophication acidification warming drought extreme-event disturbance succession recovery resilience stability variability uncertainty sustainable-development green-economy circular-economy bioeconomy ecosystem-approach one-health planetary-health environmental-health public-health veterinary-health plant-health food-security nutrition livelihood poverty inequality gender indigenous-knowledge traditional-knowledge local-knowledge citizen-science stakeholder-engagement policy governance regulation legislation international-cooperation capacity-building awareness communication outreach extension advisory-service research innovation technology-transfer knowledge-exchange networking partnership collaboration evaluation evidence-based-policy science-policy-interface diplomacy advocacy activism social-movement environmental-justice environmental-ethics environmental-philosophy environmental-humanities environmental-history environmental-literature environmental-art environmental-education environmental-communication science-communication risk-communication crisis-communication health-communication behavior-change pro-environmental-behavior sustainable-behavior consumption production waste recycling reuse reduction efficiency renewable clean green blue natural organic agroecology permaculture regenerative restorative healing transformative transdisciplinary interdisciplinary multidisciplinary cross-disciplinary disciplinary disciplinary-integration knowledge-integration system-thinking complexity emergence non-linearity feedback tipping-point regime-shift alternative-stable-state resilience-thinking adaptive-management adaptive-governance learning reflection participation inclusion equity justice fairness ethics values norms culture identity place sense-of-place attachment well-being quality-of-life happiness flourishing thriving sustainability sustainable development growth degrowth post-growth steady-state circular doughnut-economics planetary-boundaries safe-operating-space tipping-elements critical-transition early-warning-signal resilience-indicator sustainability-indicator benchmark target goal commitment pledge agreement treaty convention protocol framework strategy plan program project initiative campaign movement coalition alliance network platform hub center institute organization association society union federation confederation foundation trust fund bank facility mechanism instrument tool method approach technique procedure process system structure institution administration operation service delivery provision supply demand market economy finance investment funding financing resource capital asset liability income expenditure revenue cost benefit profit loss return yield outcome output input throughput productivity effectiveness performance quality standard criterion indicator metric measure assessment appraisal review audit verification validation certification accreditation recognition award prize honor distinction excellence best-practice lesson-learned experience expertise competence capacity capability skill knowledge information data evidence science discovery invention creation design testing piloting scaling mainstreaming uptake adoption diffusion dissemination publication reporting documentation archiving preservation rehabilitation reconstruction replication duplication backup security safety protection safeguarding insurance risk-management emergency-preparedness response relief humanitarian peace prosperity health employment housing infrastructure energy water food fishery aquaculture mining manufacturing industry commerce recreation heritage nature ecosystem environment climate atmosphere ocean freshwater land soil mineral biota flora fauna microorganism fungi plant animal vertebrate invertebrate arthropod insect bug Hemipteran Heteropteran pentatomomorphan coreoid coreid squash-bug boxelder-bug stink-bug shield-bug plant-bug mirid lygaeid seed-bug broad-headed-bug alydid reduviid assassin-bug triatomine bed-bug cimicid water-bug nepomorphan gerromorphan leptopodomorphan enicocephalomorphan dipsocoromorphan ceratocomboid schizopteroid peloridioid coleorrhynchan moss-bug archaeorrhynchan fulgoromorphan cicadomorphan membracoid treehopper leafhopper planthopper psyllid jumping-plant-louse whitefly aleyrodid scale-insect coccoid mealybug aphid adelgid phylloxeran sternorrhynchan thysanopteran thrips psocopteran barklouse booklouse phthirapteran louse sucking-louse chewing-louse mallophagan anopluran dermapteran earwig blattodean cockroach termite isopteran mantodean mantid phasmid stick-insect leaf-insect orthopteran grasshopper locust katydid cricket mole-cricket pygmy-mole-cricket camel-cricket cave-cricket weta ensiferan caeliferan gryllotalpid myrmecophilid tettigoniid gryllid acridid pamphagid pneumorid lentulid tristirid eumastacid proscopiid tridactylid tetrigid grouse-locust pygmy-grasshopper plecopteran stonefly embiopteran webspinner zorapteran angel-insect dictyopteran
Lipaphis
Crucifer Aphids
Lipaphis is a genus of aphids in the family Aphididae, commonly known as crucifer aphids. Species in this genus are specialized feeders on plants in the family Brassicaceae, with some species showing broader host ranges within dicotyledons. The genus includes economically significant pests such as Lipaphis erysimi (mustard aphid) and Lipaphis pseudobrassicae, which cause substantial yield losses in rapeseed, mustard, kale, and other cruciferous crops across multiple continents.
aphid Brassicaceae-pest agriculture integrated-pest-management parthenogenesis host-plant-resistance biological-control Asia Africa South-America
Mayetiola destructor
Hessian fly, barley midge
The Hessian fly (Mayetiola destructor) is a major pest of wheat and other cereal crops. Adults are small, mosquito-like flies with dark wings, black thorax, and dark red abdomen. Females deposit eggs in clusters on wheat leaf surfaces; larvae feed on stem tissue, causing stunting, lodging, and reduced grain yield. Unlike most Cecidomyiidae, this species does not form galls. Native to Asia, it has spread globally and was one of the earliest documented invasive species in North America, first reported in 1779.
agricultural-pest wheat-pest invasive-species chromosome-elimination Cecidomyiidae stem-borer integrated-pest-management host-plant-resistance
Oulema melanopus
cereal leaf beetle
Oulema melanopus is a leaf beetle native to Eurasia that was introduced to North America in 1962, where it has since become a significant economic pest of small grain crops. The species is particularly damaging to spring wheat and oats, with outbreaks that are sporadic and difficult to predict. Larval feeding causes the most damage by skeletonizing leaves. Management relies on insecticides, though biological control using introduced parasitoids and host plant resistance breeding programs offer promising alternatives.
agricultural-pest cereal-crops biological-control invasive-species leaf-beetle Chrysomelidae integrated-pest-management host-plant-resistance
Sphenophorus parvulus
bluegrass billbug
Sphenophorus parvulus, commonly known as the bluegrass billbug, is a small weevil native to North America and a significant pest of turfgrass, particularly Kentucky bluegrass. Adults measure approximately 5–7 mm in length, with a distinctive long, downward-curving rostrum comprising about one-third of the body length. The species was described by Swedish entomologist Leonard Gyllenhaal in 1838, with the specific epithet derived from Latin 'parvus' meaning small. It is one of at least ten Sphenophorus species that damage turfgrass in the United States and is frequently studied in the context of integrated pest management and host plant resistance.
turfgrass-pest weevil integrated-pest-management host-plant-resistance endophyte biological-control cuticular-hydrocarbons mate-recognition chemical-ecology
Tetramesa
Tetramesa is a genus of minute phytophagous wasps in the family Eurytomidae comprising over 200 described species. Members are exclusively associated with grasses (Poaceae), where they typically induce stem or inflorescence galls. The genus exhibits pronounced host specificity, with most species restricted to a single grass species or closely related congeners. Several species have been deployed as biological control agents against invasive grasses, including T. romana for giant reed (Arundo donax) and candidate agents for medusahead (Taeniatherum caput-medusae) and African lovegrass (Eragrostis curvula). Adults feed on nectar. Recent phylogenomic studies have synonymized the genera Aiolomorphus and Cathilaria within Tetramesa.
biological-control gall-wasp grassland invasive-species-management host-specificity cryptic-species phylogenomics Eurytomidae Chalcidoidea Hymenoptera phytophagy Poaceae stem-gall inflorescence-gall integrated-pest-management riparian-restoration molecular-systematics species-delimitation GMYC COI 28S biocontrol-agent Arundo-donax giant-reed medusahead African-lovegrass Eragrostis Sporobolus barley-jointworm integrated-taxonomy Southern-Hemisphere-diversity grassland-expansion Miocene-diversification monophagy host-range-testing non-target-effects tick-habitat cattle-fever-tick Rio-Grande Big-Bend-National-Park greenhouse-rearing oviposition-behavior water-deficit-stress generation-time parasitoid Eurytoma-amicophaga Eurytominae Walker-1848 Terebrantes Apocrita microhymenoptera minute-wasp reduced-wing-venation antennal-segmentation mesosoma-sculpture ovipositor molecular-operational-taxonomic-units MOTU species-boundaries cryptic-diversity sampling-effects SPEDE-sampler 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managed-relocation ex-situ-conservation in-situ-conservation cryopreservation seed-bank gene-bank botanic-garden arboretum zoo aquarium microbial-culture-collection DNA-bank tissue-bank sperm-bank oocyte-bank embryo-bank reintroduction translocation reinforcement supplementation headstarting captive-breeding propagation nucleus-population release-program soft-release hard-release acclimatization habitat-preparation predator-control competitor-control disease-control parasite-control health-screening quarantine veterinary-care nutrition-management environmental-enrichment behavioral-training imprinting fostering cross-fostering hand-rearing parent-rearing semi-natural-enclosure pre-release-conditioning survival-rate reproduction-rate dispersal-rate site-fidelity homeward-orientation migration navigation orientation magnetic-sense olfactory-sense visual-sense auditory-sense mechanosensory-sense thermosensory-sense hygrosensory-sense electrosensory-sense polarized-light celestial-cues landmark-cues odor-plume wind-direction sun-compass star-compass moon-compass magnetic-compass inertial-navigation path-integration cognitive-map spatial-memory temporal-memory episodic-memory procedural-memory associative-learning operant-conditioning classical-conditioning habituation sensitization song-learning tool-use problem-solving innovation social-learning cultural-transmission teaching cooperation altruism kin-selection reciprocal-altruism group-selection multilevel-selection selfish-gene inclusive-fitness reproductive-skew dominance-hierarchy territoriality home-range activity-center den-site nest-site roost-site singing-post display-site lek arena scrape burrow cavity crevice hole tunnel gallery chamber cell comb paper-nest mud-nest silk-nest spun-cocoon pupal-case ootheca egg-mass clutch brood litter covey pack herd flock colony society superorganism eusociality cooperative-breeding communal-breeding polygyny polyandry promiscuity monogamy serial-monogamy genetic-monogamy social-monogamy extra-pair-copulation sperm-competition cryptic-female-choice sexual-selection intersexual-selection intrasexual-selection mate-choice mate-guarding mate-switching divorce widowhood mate-replacement breeding-season breeding-cycle breeding-attempt breeding-success fledging-success recruitment juvenile-survival adult-survival longevity life-expectancy maximum-lifespan aging telomere oxidative-damage mitochondrial-dysfunction cellular-senescence apoptosis necrosis autophagy proteostasis DNA-repair epigenetic-modification transgenerational-effect maternal-effect paternal-effect parental-care maternal-care paternal-care biparental-care alloparental-care brood-care egg-care larval-care pupal-care food-provisioning nest-defense territory-defense predator-defense disease-defense parasite-defense hygiene-behavior grooming nest-cleaning cannibalism siblicide infanticide filial-cannibalism sexual-cannibalism cannibalistic-oophagy trophic-egg regurgitation trophallaxis food-sharing information-sharing alarm-call mobbing distraction-display broken-wing-display tailing persecution attack escape flight fight freeze faint death-feigning tonic-immobility startle-response withdrawal avoidance dishabituation latent-inhibition blocking overshadowing relative-validity conditioned-inhibition spontaneous-recovery renewal reinstatement rapid-reacquisition latent-learning insight-learning observational-learning vicarious-learning emulation imitation social-facilitation social-inhibition audience-effect bystander-effect conformity obedience compliance commitment consistency foot-in-the-door door-in-the-face low-ball that's-not-all sunk-cost endowment-effect loss-aversion risk-aversion risk-seeking probability-weighting hyperbolic-discounting temporal-discounting intertemporal-choice optimal-foraging marginal-value-theorem prey-choice patch-choice diet-breadth central-place-foraging load-size travel-time handling-time search-time encounter-rate prey-density prey-profitability prey-handling prey-detection prey-pursuit prey-capture prey-consumption prey-rejection ingestion-rate digestion-rate assimilation-efficiency production-efficiency ecological-efficiency trophic-transfer-efficiency Lindeman-efficiency ten-percent-rule pyramid-of-numbers pyramid-of-biomass pyramid-of-energy food-chain trophic-network energy-flow material-cycling biogeochemical-cycle carbon-cycle nitrogen-cycle phosphorus-cycle sulfur-cycle water-cycle hydrological-cycle atmospheric-circulation ocean-circulation thermohaline-circulation El-Niño La-Niña ENSO NAO AO PDO AMO climate-oscillation climate-anomaly weather-extreme drought flood heat-wave cold-snap storm hurricane typhoon cyclone tornado thunderstorm lightning wildfire volcanic-eruption earthquake tsunami landslide avalanche meteor-impact mass-extinction background-extinction speciation-rate extinction-rate net-diversification turnover standing-diversity fossil-record taphonomy preservation-bias sampling-bias collection-bias publication-bias citation-bias language-bias geographic-bias temporal-bias taxonomic-bias size-bias abundance-bias habitat-bias facies-bias Lagerstätte Konservat-Lagerstätte Konzentrat-Lagerstätte trace-fossil body-fossil chemical-fossil molecular-fossil biomarker isotope-signature paleoclimate-proxy paleoecology paleobiogeography paleoecosystem paleocommunity paleoenvironment paleogeography paleolatitude paleolongitude continental-drift plate-tectonics seafloor-spreading subduction orogeny mountain-building basin-formation sedimentation erosion weathering soil-formation pedogenesis horizon-development profile-development chronosequence toposequence biosequence climosequence landform geomorphology topography relief elevation slope aspect curvature roughness drainage watershed catchment basin subbasin reach segment zone riffle pool run glide cascade waterfall wetland marsh swamp bog fen mire peatland tundra taiga boreal-forest temperate-forest temperate-rainforest temperate-grassland tropical-forest tropical-rainforest tropical-dry-forest tropical-savanna tropical-grassland desert hot-desert cold-desert semiarid steppe prairie pampas veld savanna woodland shrubland chaparral maquis garigue fynbos kwongan mallee mulga mogote karst cave sinkhole doline polje uvala ponor spring seep oasis wadi arroyo gully ravine canyon gorge valley dale glen strath rift graben horst fault fold anticline syncline monocline dome plateau mesa butte escarpment bluff cliff crag tor inselberg bornhardt kopje hill knoll mound ridge spur saddle pass col gap notch cleft fissure joint bedding-plane foliation lineation cleavage schistosity gneissic-banding magma lava igneous-rock sedimentary-rock metamorphic-rock mineral crystal grain texture structure fabric composition chemistry mineralogy petrology geochemistry geophysics geochronology radiometric-dating isotopic-dating dendrochronology varve-chronology lichenometry archaeomagnetism paleomagnetism thermoluminescence optically-stimulated-luminescence electron-spin-resonance cosmogenic-nuclide exposure-dating burial-dating terrestrial-cosmogenic-nuclide in-situ-cosmogenic-nuclide meteoric-cosmogenic-nuclide fallout-radionuclide lead-210 cesium-137 plutonium americium radiocarbon carbon-14 calibration-curve intcal marine-reservoir-effect terrestrial-reservoir-effect hard-water-effect contamination pretreatment combustion graphitization accelerator-mass-spectrometry liquid-scintillation-counting gas-proportional-counting beta-counting gamma-spectrometry alpha-spectrometry mass-spectrometry inductively-coupled-plasma-mass-spectrometry thermal-ionization-mass-spectrometry secondary-ion-mass-spectrometry laser-ablation-inductively-coupled-plasma-mass-spectrometry electron-microprobe scanning-electron-microscopy transmission-electron-microscopy light-microscopy confocal-microscopy fluorescence-microscopy polarizing-microscopy phase-contrast-microscopy differential-interference-contrast-microscopy dark-field-microscopy bright-field-microscopy stereomicroscopy dissecting-microscopy microtomy sectioning staining mounting embedding fixation preservation collection curation vouchering repository herbarium museum archive database registry catalogue checklist inventory survey monitoring assessment evaluation appraisal audit review synthesis rapid-review scoping-review narrative-review critical-review state-of-the-art-review literature-review bibliometric-analysis citation-analysis co-citation-analysis bibliographic-coupling co-authorship-analysis collaboration-network knowledge-map concept-map ontology taxonomy classification nomenclature typification designation description diagnosis illustration measurement morphometry meristics count ratio index score rank grade scale level category class group set subset cluster clade lineage branch stem crown root node tip terminal internal basal derived ancestral plesiomorphic apomorphic synapomorphic autapomorphic homologous homoplastic convergent parallel reversal gain loss duplication deletion insertion inversion fusion fission polyploidy aneuploidy chromosome-number genome-size gene-number transcriptome proteome metabolome lipidome glycome interactome phenome connectome epigenome microbiome virome mycobiome bacteriome phytobiome rhizobiome endobiome ectobiome parasitome pathobiome diseasome toxome exposome foodome nutriome pharmacome toxicome adverse-outcome-pathway mode-of-action mechanism-of-action target-site receptor-binding enzyme-inhibition ion-channel-blockade membrane-disruption DNA-intercalation inflammation cell-differentiation cell-migration cell-adhesion cell-signaling signal-transduction gene-expression transcription translation post-translational-modification protein-folding protein-degradation protein-trafficking vesicle-transport exocytosis endocytosis phagocytosis pinocytosis mitophagy pexophagy ribophagy ER-phagy lysophagy lipophagy glycophagy ferritinophagy aggrephagy xenophagy entosis cytosis syncytium plasmodesmata gap-junction tight-junction adherens-junction desmosome hemidesmosome focal-adhesion cell-polarity cell-asymmetry cell-division mitosis meiosis cytokinesis karyokinesis chromosome-segregation spindle-assembly checkpoint DNA-replication DNA-recombination transposition retrotransposition horizontal-gene-transfer vertical-gene-transfer endosymbiosis symbiogenesis holobiont hologenome extended-phenotype niche-construction ecosystem-engineering keystone-process ecological-function ecosystem-function ecosystem-good natural-capital natural-resource renewable-resource non-renewable-resource common-pool-resource public-good private-good club-good externality market-failure government-failure policy-failure institutional-failure tragedy-of-the-commons free-rider collective-action social-dilemma prisoner's-dilemma chicken-game assurance-game coordination-game zero-sum-game positive-sum-game negative-sum-game win-win lose-lose win-lose Pareto-optimal Pareto-improvement Kaldor-Hicks-improvement cost-benefit-analysis cost-effectiveness-analysis multi-criteria-decision-analysis decision-support-system expert-system knowledge-based-system rule-based-system case-based-reasoning machine-learning deep-learning neural-network random-forest support-vector-machine decision-tree regression-tree classification-tree clustering-algorithm dimensionality-reduction feature-selection feature-extraction pattern-recognition image-analysis signal-processing time-series-analysis spatial-analysis geographic-information-system remote-sensing satellite-imagery aerial-photography drone-imagery LiDAR radar sonar seismic geophysical geochemical biogeochemical ecoinformatics bioinformatics computational-biology systems-biology synthetic-biology biotechnology nanotechnology genetic-engineering genome-editing CRISPR TALEN zinc-finger-nuclease transgenic cisgenic intragenic subgenic agrobacterium-mediated-transformation biolistics electroporation microinjection protoplast-fusion somatic-hybridization cybrid asymmetric-hybrid synthetic-polyploid doubled-haploid haploid-induction anther-culture microspore-culture ovule-culture embryo-culture endosperm-culture protoplast-culture cell-culture tissue-culture organ-culture shoot-culture root-culture callus-culture suspension-culture bioreactor hairy-root-culture transformation hardening micropropagation clonal-propagation meristem-culture shoot-tip-culture axillary-bud-culture nodal-culture leaf-culture petiole-culture stem-culture internode-culture rhizome-culture bulb-culture corm-culture tuber-culture seed-culture zygotic-embryo-culture somatic-embryo-culture somatic-embryogenesis organogenesis caulogenesis rhizogenesis adventitious-shoot-formation direct-regeneration indirect-regeneration primary-metabolism secondary-metabolism biosynthesis biotransformation bioconversion biodegradation bioremediation phytoremediation mycoremediation zooremediation bioaugmentation biostimulation natural-attenuation monitored-natural-attenuation engineered-natural-attenuation permeable-reactive-barrier pump-and-treat soil-vapor-extraction air-sparging thermal-desorption incineration landfilling containment capping slurry-wall grout-curtain sheet-piling clay-liner geomembrane geotextile geogrid geocomposite geosynthetic geofabric geonet geocell geopipe geostrip geofoam geobag geotube geocontainer geomat geoblanket geospacer geodrain geoinjection geogrout geopier geocolumn geopile geowall geoberm geotrench geocut geofill geolift geoslab geopanel geoblock geobrick geotile geopaver geoweb geomattress geocushion
Therioaphis trifolii
yellow clover aphid, spotted alfalfa aphid
Therioaphis trifolii is a phloem-feeding aphid and major agricultural pest of alfalfa (Medicago sativa) and clover species (Trifolium spp.). The species exhibits significant intraspecific variation, with distinct biotypes showing host-specific adaptations: the spotted alfalfa aphid (SAA) primarily colonizes Medicago species, while the spotted clover aphid (SCA) specializes on Trifolium. Native to the western Palaearctic, it has established globally including Australia, North America, and parts of Asia. The species manipulates host plant defense pathways through salivary secretions, activating salicylic acid signaling while suppressing jasmonic acid responses to improve host suitability.
aphid agricultural-pest alfalfa clover biotype plant-virus-vector biological-control host-plant-resistance salivary-effector phloem-feeder invasive-species Medicago Trifolium