Corn-pest

Guides

Anatrachyntis rileyi
pink cornworm, pink bud moth, pink scavenger, Pink Scavenger Caterpillar Moth
A small moth in the family Cosmopterigidae, described from the southern United States in 1882 but likely introduced to North America from elsewhere. It has established populations across warm and tropical regions worldwide, including the Americas, Pacific islands, and parts of Africa and Asia. The species is known by multiple common names reflecting its association with corn and its scavenging habits.
agricultural-pest corn-pest cosmet-moth pantropical introduced-species
Chaetopsis
picture-winged flies, corn silk flies
Chaetopsis is a genus of ulidiid flies (Diptera: Ulidiidae) established by Loew in 1868. The genus includes at least 13 described species distributed in tropical and semi-tropical regions of the Americas. Chaetopsis massyla is the most economically significant species, a major pest of fresh market sweet corn in Florida and tropical regions where larvae feed on developing corn kernels and silk. The genus is characterized by picture-winged morphology typical of Ulidiidae, with patterned wings and robust body form.
agricultural-pest corn-pest ulidiidae diptera integrated-pest-management biological-control visual-ecology
Chinavia pensylvanica
Pennsylvania stink bug
Chinavia pensylvanica is a stink bug species in the family Pentatomidae, native to North America. It is one of several Chinavia species that feed on cultivated crops and wild plants. The species has been documented in soybean and corn fields in the Midwestern United States, where it contributes to emerging stink bug pest problems in regional agriculture.
stink-bug agricultural-pest soybean-pest corn-pest Hemiptera Pentatomidae
Colaspis crinicornis
Colaspis crinicornis is a leaf beetle species in the family Chrysomelidae, native to the Great Plains of the United States. It was described by Schaeffer in 1933. Historically not considered a pest, its populations have increased substantially in corn and soybean fields in southeastern Nebraska over the past decade. The species has a univoltine life cycle, overwintering as larvae in soil and emerging as adults in summer. Adults feed on above-ground foliage while larvae feed on below-ground plant portions.
leaf-beetle agricultural-pest corn-pest soybean-pest Great-Plains Nebraska soil-dwelling-larvae univoltine
Crambidae
Crambid Snout Moths, grass moths
Crambidae is a large family of Lepidoptera comprising over 10,000 species in more than 1,000 genera across 15 subfamilies. The family includes economically significant agricultural pests such as the European corn borer (Ostrinia nubilalis), sod webworms (Crambus spp.), and the invasive box tree moth (Cydalima perspectalis). Historically treated as a subfamily of Pyralidae, Crambidae was elevated to full family status based on the presence of a praecinctorium—a structure joining two tympanic membranes absent in Pyralidae. Members exhibit diverse morphologies: Crambinae (grass moths) are slender with wings folded tightly around the body at rest, while other subfamilies display bright coloration and rest with wings spread.
grass-moth snout-moth agricultural-pest stem-borer biocontrol aquatic-moth invasive-species corn-pest rice-pest sugarcane-pest
Diabrotica
cucumber beetles, corn rootworms
Diabrotica is a large, widespread genus of leaf beetles (Chrysomelidae) comprising approximately 400 species native to the Americas. The genus includes several economically significant agricultural pests, particularly species affecting corn, cucurbits, and other crops. Three informal species groups are recognized—fucata (354 species, multivoltine), virgifera (24 species, univoltine), and signifera (11 species, univoltine)—based on life history traits rather than molecular phylogeny. The genus exhibits a unique evolutionary relationship with cucurbitacin-producing plants, with beetles attracted to these bitter, toxic compounds for chemical defense.
agricultural-pest root-feeder leaf-beetle cucurbit-specialist corn-pest invasive-species
Diabrotica barberi
northern corn rootworm
Diabrotica barberi, the northern corn rootworm, is a chrysomelid beetle native to North America and a major pest of corn (Zea mays). Larvae feed on corn roots, causing significant economic damage, while adults feed on corn silks, pollen, and leaves. Unlike the western corn rootworm, D. barberi has not developed resistance to Bt traits in Iowa as of 2019-2020 surveys. The species exhibits extended diapause in some populations, with eggs remaining dormant for multiple years before hatching. Research indicates its flight behavior differs from D. virgifera, with shorter but more frequent flights and less sustained long-distance movement.
agricultural-pest corn-pest rootworm Chrysomelidae North-America extended-diapause flight-behavior
Diabrotica undecimpunctata
spotted cucumber beetle, southern corn rootworm, western cucumber beetle, western spotted cucumber beetle
Diabrotica undecimpunctata is a leaf beetle native to North America and a major agricultural pest. Adults are greenish-yellow with twelve black spots on the elytra. The species exhibits broad polyphagy, feeding on over 200 plant species across approximately 50 families. Three subspecies are recognized, with D. u. howardi (eastern) and D. u. undecimpunctata (western) being the most significant agriculturally. The species vectors bacterial wilt (Erwinia tracheiphila) and Pantoea ananatis, contributing to disease spread in cucurbits and corn.
agricultural-pest disease-vector polyphagous cucurbit-pest corn-pest Chrysomelidae North-America-native
Diabrotica undecimpunctata howardi
Eastern Spotted Cucumber Beetle, Southern Corn Rootworm
Diabrotica undecimpunctata howardi, the eastern subspecies of the spotted cucumber beetle, is a polyphagous agricultural pest native to North America. It is distinguished from the western subspecies (D. u. undecimpunctata) by geographic range, occurring east of the Rocky Mountains. The species completes one to three generations annually depending on latitude, with adults overwintering in mild climates and spreading northward seasonally. Both larval and adult stages cause economically significant damage to multiple crops.
agricultural-pest disease-vector root-feeder polyphagous thermoregulation corn-pest cucurbit-pest peanut-pest
Diatraea crambidoides
southern cornstalk borer moth, southern corn stalk borer
Diatraea crambidoides is a moth in the family Crambidae whose larvae are significant agricultural pests of corn, sorghum, and sugarcane. The species was described by Augustus Radcliffe Grote in 1880 and occurs in eastern North America from Alabama and northern Florida to Ohio and Maryland. Adults are straw-colored to dull white with wingspans of 15–40 mm. The species has two generations per year, with larvae boring into stalks and damaging internodes, reducing crop yield. It has been evaluated as a target for biological control using the parasitoid wasp Aprostocetus esurus.
pest agricultural stalk-borer corn-pest sorghum-pest sugarcane-pest North-America biological-control-target
Eoreuma loftini
Mexican rice borer, Mexican Rice-borer Moth
Eoreuma loftini, the Mexican rice borer, is a small moth in the family Crambidae described by Harrison Gray Dyar Jr. in 1917. It is a significant agricultural pest of sugarcane, rice, corn, sorghum, and lemongrass in the southern United States and Mexico. The species is invasive in the U.S. and is expanding its range northward at approximately 15 miles per year, having spread from Texas into Louisiana and Florida since 1980. Larval feeding inside plant stems causes characteristic damage including 'deadhearting' and 'whiteheading' in rice, and stem rot in lemongrass, resulting in substantial yield losses.
agricultural-pest invasive-species stalk-borer sugarcane-pest rice-pest corn-pest sorghum-pest lemongrass-pest biological-control-target range-expanding Crambidae Lepidoptera
Euetheola rugiceps
Sugarcane Beetle
Euetheola rugiceps, commonly known as the sugarcane beetle, is a scarab beetle in the family Scarabaeidae. It is a sporadic but serious pest of corn in parts of Texas, where damage to young plants by overwintered adults can result in plant death, stunting, or lodging. The species has one generation per year, with adults emerging from soil in spring and late summer to early fall. It is also known to damage sugarcane and other grass crops. The beetle is distributed across the eastern and central United States.
pest agricultural scarab corn-pest sugarcane-pest soil-dwelling monovoltine
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.
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asked-organization looked-organization trailed-organization shadowed-organization stalked-organization surveyed-organization inspected-organization examined-organization investigated-organization explored-organization studied-organization researched-organization analyzed-organization judged-organization rated-organization ranked-organization scored-organization graded-organization
Euxesta annonae
cornsilk fly
Euxesta annonae is a picture-winged fly in the family Ulidiidae, one of four 'cornsilk fly' species documented as pests of sweet corn in Florida. The species has a broad distribution spanning from Florida to Hawaii. Like other cornsilk flies, it exhibits distinctive wing patterning and wing-flapping behavior.
ulidiid picture-winged-fly cornsilk-fly agricultural-pest corn-pest Florida Hawaii
Glischrochilus quadrisignatus
Four-spotted Sap Beetle, Four-spotted Fungus Beetle, Beer Bug, Picnic Beetle
Glischrochilus quadrisignatus is a sap-feeding beetle in the family Nitidulidae, commonly known as the four-spotted sap beetle or picnic beetle. It is native to North America and has been introduced to parts of Europe including Montenegro, Serbia, Albania, and Austria. The species is strongly attracted to fermenting plant fluids, overripe fruits, and fungal growths, and is a notable pest of sweet corn and other crops. It has been studied for its complex ecological interactions, including its role as a mortality factor for European corn borer larvae and its potential as a biological control agent.
agricultural-pest sap-beetle nitidulidae fermentation corn-pest biological-control introduced-species North-America Europe
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
Maladera formosae
Asiatic garden beetle
Maladera formosae, the Asiatic garden beetle, is an invasive scarab beetle native to East Asia that was introduced to North America in 1921. It has become a significant agricultural pest, particularly in the Great Lakes region where it damages field corn, soybeans, and commercial mint. The species exhibits a univoltine life cycle with soil-dwelling larvae that feed on plant roots and nocturnal adults that consume foliage and flowers. Both life stages cause economically important damage, with larvae responsible for early-season crop losses and adults defoliating ornamental and crop plants.
invasive-species agricultural-pest white-grub scarab-beetle nocturnal univoltine corn-pest mint-pest turf-pest entomopathogenic-nematode-host
Melanotus
click beetles (insect genus), dark-spored mushrooms (fungal genus)
Melanotus is a genus of click beetles (family Elateridae) comprising approximately 800 described species distributed worldwide. The genus includes several economically significant agricultural pests, particularly wireworm species whose larvae damage crop roots and tubers. Research has identified sex pheromones for some species, enabling development of monitoring and management tools. The genus name Melanotus is also applied to a fungal genus in Strophariaceae, but this record addresses the beetle genus.
Elateridae wireworm agricultural-pest sex-pheromone integrated-pest-management entomopathogenic-nematodes potato-pest corn-pest semiohemistry soil-dwelling-larvae
Melanotus communis
corn wireworm
Melanotus communis is a click beetle species whose larvae, known as corn wireworms, are significant agricultural pests in North America. The species is currently treated as a species complex due to unresolved taxonomic boundaries with closely related forms. Larvae feed on germinating seeds and roots of corn, potatoes, and other crops, causing substantial economic damage. Research has focused on developing biological control methods using entomopathogenic nematodes and fungi, as well as pheromone-based monitoring systems.
agricultural-pest wireworm root-feeder soil-dwelling biological-control-target species-complex corn-pest potato-pest
Myochrous
Myochrous is a genus of leaf beetles in the subfamily Eumolpinae, containing over 50 described species distributed across North, Central, and South America. The generic name derives from Ancient Greek words meaning 'mouse' and 'color'. Several species are agricultural pests, including Myochrous denticollis (southern corn leaf beetle), Myochrous melancholicus (banana pest), and Myochrous armatus (emerging soybean pest in Brazil). The genus was formerly placed in tribe Adoxini but is now classified in Eumolpini.
leaf-beetle agricultural-pest soybean-pest corn-pest banana-pest Eumolpinae Chrysomelidae
Mythimna
Armyworm moths
Mythimna is a genus of moths in the family Noctuidae, commonly known as armyworm moths. Several species are significant agricultural pests, with larvae that feed on cereal crops, corn, rice, and other grasses. The genus has a global distribution spanning Europe, Asia, Africa, the Americas, and Australasia. Notable species include M. unipuncta (true armyworm), M. separata (Oriental armyworm), and M. loreyi, all of which cause economic damage to major food crops. Adult moths have been documented as nocturnal pollinators of apple flowers and other crops.
armyworm agricultural-pest nocturnal-pollinator Noctuidae cereal-pest corn-pest rice-pest
Sphenophorus callosus
Southern Corn Billbug
Sphenophorus callosus, commonly known as the southern corn billbug, is a weevil species in the family Dryophthoridae (formerly placed in Curculionidae) that is a significant agricultural pest of corn in eastern North Carolina. Historically widespread and damaging throughout the southeastern United States, its impact has become regionally restricted due to modern management practices, particularly insecticidal seed treatments. The species is univoltine with a narrow host range, reproducing primarily on corn and yellow nutsedge.
agricultural-pest corn-pest weevil billbug integrated-pest-management eastern-North-Carolina univoltine neonicotinoid-resistance
Sphenophorus coesifrons
oblite billbug
Sphenophorus coesifrons, commonly known as the oblite billbug, is a small weevil species in the family Dryophthoridae. It is distributed across North America from Maryland and Wisconsin south to the Gulf Coast and Arizona. The species has been documented as a pest of corn along the Gulf Coast, where it was considered extremely destructive to first and second plantings. It has also been reared on timothy in Illinois and Michigan. The species closely resembles the bluegrass billbug (Sphenophorus parvulus) but can be distinguished by morphological differences in the beak.
billbug weevil agricultural-pest corn-pest Dryophthoridae North-America
Sphenophorus maidis
Maize Billbug
Sphenophorus maidis, commonly known as the maize billbug, is a weevil species in the family Curculionidae. It is found in North America and is associated with maize (corn) as a host plant. The species belongs to a genus of billbugs that are significant agricultural pests, with larvae that bore into plant stems and roots causing substantial damage to crops.
billbug weevil maize-pest agricultural-pest Curculionidae North-America corn-pest Sphenophorus Coleoptera integrated-pest-management larval-boring-pest turfgrass-pest-relative
Stenocranus
delphacid planthoppers
Stenocranus is a genus of delphacid planthoppers in the family Delphacidae, containing more than 70 described species. Species within this genus exhibit wing polymorphism, with macropterous (long-winged) and sub-macropterous forms occurring in at least some species. Several species are documented crop pests, particularly of corn, rice, and sugarcane. The genus has a broad distribution with records from Europe, North America, and Asia, though individual species vary in their geographic ranges. Some species have shown invasive potential, with range expansions into new regions documented in recent decades.
Delphacidae planthopper crop-pest wing-polymorphism macroptery sub-macroptery grass-feeder corn-pest rice-pest sugarcane-pest invasive-species phloem-feeder S.-pacificus S.-minutus Philippines Indonesia Japan Europe North-America parasitoid-host Cephalops-curtifrons
Stenolophus
Seedcorn Beetles
Stenolophus is a large genus of ground beetles in the family Carabidae, comprising over 190 described species distributed across the Palearctic, Nearctic, Near East, and North Africa. Commonly known as seedcorn beetles, several species are significant agricultural pests of corn and other crops. The genus includes both univoltine and potentially multivoltine species depending on geographic location.
Carabidae Coleoptera agricultural-pest corn-pest ground-beetle seedcorn-beetle univoltine North-America Palearctic
Striacosta
western bean cutworm (for sole species S. albicosta)
Striacosta is a monotypic genus of moths in the family Noctuidae, established by Lafontaine in 2004. The sole species, Striacosta albicosta (western bean cutworm), is an agricultural pest native to North America. The species underwent significant range expansion from the western Great Plains to eastern North America beginning in 1999. Larvae are serious pests of corn and dry bean crops, with documented resistance to Cry1F Bt protein.
agricultural-pest Bt-resistance range-expansion monotypic-genus western-bean-cutworm corn-pest dry-bean-pest Noctuidae Lepidoptera North-America invasive-potential climate-change-modeling
Thyanta custator accerra
Redshouldered stink bug, Red-shouldered stink bug
Thyanta custator accerra is a subspecies of shield bug in the family Pentatomidae, commonly known as the redshouldered stink bug. It is an agricultural pest of increasing concern in soybean and corn production across the Midwestern United States. Adults are recognized by a distinctive reddish band across the thorax-abdomen junction. The species feeds on developing fruits and seeds using piercing-sucking mouthparts, causing yield loss and quality reduction in affected crops.
agricultural-pest soybean-pest corn-pest stink-bug Hemiptera Pentatomidae Midwest-US IPM integrated-pest-management phytophagous
Toxomerus politus
maize calligrapher
Toxomerus politus, commonly known as the maize calligrapher, is a small hoverfly (Diptera: Syrphidae) measuring 8–9 mm. The species is native to North America but has been introduced and is expanding its distribution across Central and South America, with recent records from Chile. Adults and larvae are associated with corn (Zea mays), feeding on pollen. The species has been studied for its male genitalia morphology and sperm ultrastructure using advanced microscopy techniques.
hoverfly syrphid pollinator corn-pest exotic-species New-World sweat-seeking agricultural-associate