Integrated-pest-management
Guides
Prosapia
froghoppers, spittlebugs
Prosapia is a genus of froghoppers (family Ischnorhinidae) comprising approximately six described species distributed across North and Central America, including the Caribbean. These insects are commonly known as spittlebugs due to the protective foamy masses produced by nymphs. Several species are significant agricultural pests of forage grasses, turfgrasses, and sugarcane, causing economic damage through xylem feeding that induces water stress, tissue death, and reduced forage quality. The genus includes the invasive two-lined spittlebug (P. bicincta), which established in Hawaiʻi in 2016 and has since damaged thousands of hectares of cattle pastures.
Prosapia bicincta
Two-lined Spittlebug, Twolined Spittlebug
Prosapia bicincta, commonly known as the two-lined spittlebug, is a froghopper in the family Ischnorhinidae (formerly Cercopidae). Native to the eastern United States, it was first detected in Hawaiʻi in 2016 and has since become a destructive invasive pest of pasture grasses, infesting over 70,000 hectares on Hawaiʻi Island. The species is named for the two prominent red or orange stripes crossing the black wings of adults and for the foamy spittle masses produced by nymphs. It causes significant economic damage to forage grasses, turfgrasses, and sugarcane through feeding that induces water stress, reduces photosynthesis, and causes plant tissue death.
Proteoteras aesculana
maple twig borer, maple tip moth, early proteoteras, Maple Twig Borer Moth
Proteoteras aesculana is a small tortricid moth known as the maple twig borer or maple tip moth. It is a significant pest of maple trees in production nurseries, where larval feeding causes tip dieback and kills the central leader. The species has a broad North American distribution spanning from coast to coast in the northern United States and scattered locations across southern Canada.
Pseudatomoscelis
Pseudatomoscelis is a genus of plant bugs in the family Miridae, established by Poppius in 1911. The genus contains at least four described species, with P. seriatus (cotton fleahopper) being the most economically significant due to its status as a major pest of cotton in the southern United States. Species in this genus are associated with diverse host plants, including both agricultural crops and native wild plants.
Pseudococcus maritimus
grape mealybug, vine mealybug
Pseudococcus maritimus, commonly known as the grape mealybug or vine mealybug, is a scale insect in the family Pseudococcidae that primarily infests grapevines (Vitis vinifera). It has been documented as a vector of Grapevine leafroll-associated virus 3 and, more recently, was confirmed to transmit Little cherry virus 2 to sweet cherry, making it an economically significant pest in tree fruit and vineyard systems. The species is part of a species complex that includes morphologically similar taxa such as Pseudococcus meridionalis. Research indicates limited natural dispersal capacity, with first instars rarely walking between plants and wind dispersal declining sharply with distance from source plants.
Psylliodes chrysocephala
cabbage-stem flea beetle, cabbage stem flea beetle
Psylliodes chrysocephala, the cabbage-stem flea beetle, is a small flea beetle native to the Western Palaearctic and introduced to Canada. It is a major agricultural pest of winter oilseed rape (Brassica napus) in northern Europe, with adults feeding on leaves and larvae mining within petioles and stems. The species exhibits an obligatory summer aestivation period to survive heat and desiccation stress, with complex physiological and genetic mechanisms regulating this dormancy. Management has become increasingly difficult due to neonicotinoid bans and rising pyrethroid resistance.
Pyroderces
cosmet moths
Pyroderces is a genus of small moths in the family Cosmopterigidae, subfamily Cosmopteriginae. The genus includes species with diverse ecological roles: some, such as Pyroderces rileyi, are agricultural pests of banana and other crops, while others have been identified as potential supplementary pollinators of oil palm in Malaysia. The genus was established by Herrich-Schäffer in 1853. Taxonomic boundaries remain fluid, with some authors including the genus Anatrachyntis within Pyroderces.
Resseliella
Resseliella is a genus of gall midges in the family Cecidomyiidae containing at least 50 described species. The genus includes economically significant agricultural pests, notably R. maxima (soybean gall midge) which threatens soybean production in the north-central United States, as well as R. citrifrugis, a major citrus pest in China, and R. theobaldi (raspberry cane midge), an important pest of cultivated red raspberry in Europe. Some species exhibit mutualistic relationships with plants, such as R. kadsurae which pollinates Kadsura longipedunculata in China.
Rhagoletis pomonella
Apple Maggot, Apple Maggot Fly, Railroad Worm
Rhagoletis pomonella is a tephritid fruit fly native to North America that has undergone a major host shift from native hawthorn to cultivated apple within the last 150 years, making it a primary pest of apple production in the northeastern United States and southeastern Canada. The species exhibits host race formation, with genetically distinct populations specializing on apple versus hawthorn that show differences in seasonal timing, neurochemistry, and adult eclosion patterns. It has been introduced to the western United States and is subject to intensive monitoring and quarantine efforts due to its economic impact on fruit exports.
Rhynchophorus palmarum
South American palm weevil, American palm weevil, black palm weevil
Rhynchophorus palmarum is a large black palm weevil native to the Neotropics that has become a destructive invasive pest in southern California. Adults are attracted to volatile compounds released by injured palms, where females lay eggs in the crown. Larvae burrow into the palm heart, causing direct damage and creating wounds that facilitate secondary infections. The weevil is the primary vector of the red ring nematode (Bursaphelenchus cocophilus), which causes lethal red ring disease in palms. In its native range, larvae have been consumed as food for centuries.
Rhynocoris
Flower Assassin Bugs
Rhynocoris is a genus of assassin bugs in the family Reduviidae, subfamily Harpactorinae. Species occur across Asia, mainland Europe, Africa, and North America. The genus exhibits subsocial behavior with parental care of egg masses, a trait that has evolved independently only six times in Heteroptera. Multiple species have been investigated as biological control agents for agricultural pests, particularly in cotton and other crop systems.
Rhyssomatus
Rhyssomatus is a genus of true weevils (Curculionidae) containing at least 180 described species. The genus includes significant agricultural pests, particularly of soybean and other leguminous crops. Several species have been intensively studied due to their economic impact, including R. nigerrimus (Mexican soybean weevil), R. subtilis (black soybean weevil in Argentina), and R. lineaticollis (milkweed stem weevil in North America). Species exhibit diverse life histories ranging from monophagous specialists to oligophagous generalists on legumes.
Rogadinae
Mummy Wasps
Rogadinae is a large, cosmopolitan subfamily of braconid parasitoid wasps commonly known as "mummy wasps." Members are koinobiont endoparasitoids of lepidopteran larvae, uniquely characterized by causing their host caterpillars to mummify—the wasp larva pupates within the desiccated host remains. The subfamily contains six tribes (Aleiodini, Betylobraconini, Clinocentrini, Rogadini, Stiropiini, Yeliconini) and is especially diverse in the genus Aleiodes. Several species are important natural biological control agents of agricultural pest caterpillars.
Sarucallis
crape myrtle aphid
Sarucallis is a monotypic genus of aphids in the family Aphididae. The sole described species, Sarucallis kahawaluokalani, is commonly known as the crape myrtle aphid. Adults measure 1.2 to 1.8 millimeters in body length. The genus is native to Asia and has become widely distributed globally through the ornamental plant trade, tracking the spread of its host plant, crape myrtle (Lagerstroemia spp.).
Scaphoideus titanus
American grapevine leafhopper
Scaphoideus titanus is a leafhopper native to North America that has become a major agricultural pest in Europe. Introduced accidentally around 150 years ago, likely via American rootstock material, it now acts as the primary vector of the grapevine phytoplasma disease Flavescence dorée (FD). The species exhibits unique vibrational communication for mating, with males producing substrate-borne signals detected by females. This trait has been exploited for developing mating disruption control methods. In Europe, the species is monophagous on cultivated grapevines, whereas in North America it feeds on various Vitaceae including wild grapevines.
Singhiella
ficus whitefly
Singhiella is a genus of whiteflies (Hemiptera: Aleyrodidae) containing species that are significant pests of Ficus plants. The most economically important species, Singhiella simplex (the ficus whitefly), has become invasive across multiple continents, causing severe defoliation of ornamental Ficus hedges and trees. The genus is distinguished by puparial characteristics used in whitefly taxonomy, including color, shape, and wax placement.
Sipha
yellow sugarcane aphid (for S. flava), hedgehog grain aphid (for S. maydis)
Sipha is a genus of aphids (Aphididae) in the tribe Siphini, with nearly cosmopolitan distribution. The genus includes notable agricultural pests, particularly Sipha flava (yellow sugarcane aphid) and Sipha maydis (hedgehog grain aphid). Species in this genus feed on grasses and cereal crops, with some capable of transmitting plant viruses such as barley yellow dwarf virus. Several species have expanded their ranges rapidly in recent decades, becoming significant pests of sorghum, sugarcane, wheat, and barley.
Siphonaptera
fleas, pireler (Turkish)
Siphonaptera (fleas) are small, wingless, holometabolous insects that are obligate ectoparasites of mammals and birds. Adults are 2–5 mm long, bilaterally flattened, and possess enlarged hind legs adapted for jumping. Larvae are legless, worm-like, and feed on organic debris including blood clots and adult flea feces. The order comprises approximately 2,500 described species, with roughly 94% parasitizing mammals and 6% specializing on birds. Some species are significant vectors of human and animal pathogens, including plague, typhus, and tularemia.
Siphoninus phillyreae
ash whitefly
Siphoninus phillyreae, commonly known as the ash whitefly, is a polyphagous whitefly species native to western Eurasia, India, and North Africa. It has been introduced to North America, South America, and Oceania, where it is recognized as a significant agricultural pest. The species feeds on a broad range of host plants including ash, pomegranate, apple, pear, and other fruit trees. Encarsia inaron is a primary parasitoid used for its biological control.
Sitobion avenae
English Grain Aphid
Sitobion avenae, the English grain aphid, is a globally distributed pest of cereal crops. It feeds on phloem sap and transmits yellow dwarf viruses to wheat, barley, and oats. Population dynamics are influenced by temperature, water availability, and host plant quality. The species exhibits complex reproductive strategies including both cyclical and obligate parthenogenesis. Management challenges include insecticide resistance, variable biotypes, and climate change impacts on dispersal and adaptation.
Sitona lineatus
pea leaf weevil, pea weevil, bean weevil
Sitona lineatus is an invasive weevil pest of pulse crops, particularly field pea (Pisum sativum) and faba bean (Vicia faba). Native to Europe and North Africa, it has established populations in western Canadian prairie provinces and is expanding southward into the northern United States. Adults feed on foliage, while larvae develop underground feeding on root nodules and Rhizobium bacteria. The species exhibits distinct spring and late-summer flight periods tied to temperature thresholds, with spring migration from overwintering sites driving crop colonization. Economic impacts include yield reductions up to 28% through combined foliar and root damage.
Smicridea fasciatella
net-spinning caddisfly
Smicridea fasciatella is a net-spinning caddisfly in the family Hydropsychidae. It is the primary species responsible for nuisance swarming events along the Colorado River in Bullhead City, Arizona, where synchronized mass emergence of adults creates significant quality-of-life impacts for residents. The species belongs to the fasciatella species group, which occurs across the Americas from the southwestern United States through Central America and South America. Like other hydropsychid caddisflies, its larvae are aquatic filter-feeders that construct capture nets to obtain food from flowing water.
Spalangia cameroni
Spalangia cameroni is a solitary parasitoid wasp in the family Pteromalidae that attacks the pupal stage of filth flies, particularly house flies (Musca domestica). It has been extensively studied for its biological control potential in livestock and poultry operations. The species exhibits complex host-finding behaviors, including the ability to distinguish host ages through antennal contact, and demonstrates sex ratio manipulation in response to host size. It has a lifecycle of approximately 21–28 days under favorable conditions.
Spalangia drosophilae
Spalangia drosophilae is a small parasitoid wasp in the family Pteromalidae that attacks the puparia of various Diptera. Originally described from North America in 1887, this species has been documented as a parasitoid of frit flies (Oscinella frit), house flies, stable flies, and other muscoid flies in agricultural and pastoral settings. Females exhibit sophisticated host-finding behavior, using sensory cues to locate damp, grassy areas where host puparia occur. The species demonstrates host discrimination abilities to avoid superparasitism, though this restraint breaks down under high parasite-host ratios. It has been recorded from the Galápagos Islands, western North America, and Brazil, and is utilized in biological control programs for filth fly management in livestock operations.
Sparganothis
Sparganothis fruitworm
Sparganothis is a genus of tortricid moths in the subfamily Tortricinae. Several species are significant agricultural pests, particularly of cranberries, blueberries, and grapes. The genus includes the economically important Sparganothis sulfureana, a major cranberry pest in North America, and S. pilleriana, a grape leaf-roller in European vineyards. Species exhibit bivoltine life cycles with larvae that feed on fruit and foliage, causing direct yield losses in commercial production systems.
Sparganothis sulfureana
sparganothis fruitworm moth, blueberry leafroller
Sparganothis sulfureana is a tortricid moth and major agricultural pest of cranberry (Vaccinium macrocarpon) in North America. Larvae cause economic damage through two distinct feeding behaviors: spring feeding on new foliar growth reduces photosynthetic capacity, while second-generation larvae bore into enlarging berries, with each larva destroying 3–5 berries. The species is bivoltine, overwintering as first-instar larvae, and has been documented on multiple host plants including blueberry, apple, alfalfa, celery, and pine. Management relies on integrated pest management strategies including degree-day models for timing insecticide applications, flooding, and developing pheromone-based mating disruption.
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.
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.
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.
Sphenophorus probably-unnamed
Sphenophorus probably-unnamed is a billbug species within the weevil genus Sphenophorus, a group of turfgrass and agricultural pests whose larvae are notoriously difficult to identify morphologically. The specific epithet "probably-unnamed" indicates this taxon represents a distinct species that has not yet been formally described or named in the scientific literature. Like other Sphenophorus species, it is presumed to have a life cycle involving larval development within plant tissues and adult feeding on vegetation, though specific biological details for this undescribed taxon remain undocumented.
Sphenophorus venatus
hunting billbug
Sphenophorus venatus, commonly known as the hunting billbug, is a weevil species in the family Dryophthoridae. It is native to North and Central America, with established populations in parts of Europe including Spain and Corsica. The species is a documented pest of turfgrasses and forage crops, with different subspecies showing host preferences: S. v. vestitus affects zoysiagrass, while S. v. confluens has been recorded as a pest of orchardgrass. Adults and larvae feed on grasses, with larvae causing damage by boring into stems and roots. The species uses volatile organic compounds from host plants and conspecifics for dispersal and host-finding, with males attracted to Cynodon dactylon and females attracted to male conspecifics.
billbugweevilturfgrass-pestDryophthoridaeSphenophorushunting-billbuggrass-pestpheromonevolatile-organic-compoundscuticular-hydrocarbonsintegrated-pest-managementsubspecies-vestitussubspecies-confluenszoysiagrassorchardgrassbermudagrassNorth-Americaintroduced-speciesEuropemolecular-identificationCOIITS2Sphenophorus venatus vestitus
Hunting Billbug
Sphenophorus venatus vestitus, commonly known as the hunting billbug, is a subspecies of weevil in the family Curculionidae. It is a significant pest of zoysiagrass (Zoysia spp.) and other turfgrass systems. Adults are medium-sized weevils, measuring 7-9 mm in length, and can be distinguished from related billbug species by size and morphological features. The species has a documented distribution across North America, Middle America, and parts of Europe including Spain and Corsica.
Spissistilus
Three-cornered alfalfa hopper (for S. festinus)
Spissistilus is a genus of treehoppers (family Membracidae) native to North and Central America and the West Indies. The genus was erected by John S. Caldwell in 1949, with Membracis festina (now Spissistilus festinus) as the type species. The genus contains eight recognized species, with S. festinus being the most economically significant due to its status as a major agricultural pest.
Spodoptera
Armyworm Moths
Spodoptera is a genus of noctuid moths comprising approximately 30 species distributed across six continents. The larvae are commonly known as armyworms and include some of the most destructive agricultural pests worldwide. Several species, including the fall armyworm (S. frugiperda), beet armyworm (S. exigua), and cotton leafworm (S. littoralis), cause significant economic damage to crops. The genus is characterized by specific morphological traits that distinguish it from related noctuid genera.
Spodoptera eridania
Southern Armyworm Moth, Southern Armyworm
Spodoptera eridania is a highly polyphagous noctuid moth whose larvae are significant agricultural pests in tropical and subtropical regions of the Western Hemisphere. The species has emerged as one of the most important armyworm pests of soybean in Brazil and Argentina, particularly in cotton-growing regions, while remaining a sporadic pest in the southern United States. Larvae feed gregariously when young, skeletonizing leaves, and become solitary as they mature, often boring into fruit. The species has been introduced to West Africa (Nigeria and Cameroon).
Stegasta
Stegasta is a genus of small moths in the family Gelechiidae. The genus includes economically significant agricultural pests, notably the rednecked peanutworm (Stegasta bosqueella), which is the primary lepidopteran pest of peanut crops in South and Central America. Species in this genus are characterized by their small size and association with leguminous host plants.
Stegasta bosqueella
Red-necked Peanutworm Moth, Rednecked Peanutworm
Stegasta bosqueella is a gelechiid moth whose larvae are significant pests of peanut crops, particularly in South and Central America. The species has also been documented in North America from Alabama to Virginia. Adults are small moths attracted to light, while larvae feed concealed within closed peanut leaflets, producing distinctive symmetrical damage patterns upon leaf expansion. The species has been successfully managed using attract-and-kill strategies targeting adults.
Stomoxys
stable flies
Stomoxys is a genus of muscid flies distinguished by its blood-feeding ectoparasitic lifestyle, unusual among the Muscidae. The genus comprises approximately 20 described species, with Stomoxys calcitrans (stable fly) being the most economically significant and widely distributed. Species in this genus are obligate hematophages of mammals, causing substantial livestock losses through blood loss, stress, and disease transmission. Current phylogenetic evidence suggests the genus is paraphyletic.
Strategus
Ox Beetles
Strategus is a genus of rhinoceros beetles in the family Scarabaeidae, commonly known as ox beetles. The genus is widespread in the Americas, ranging from Kansas southward through South America. Species in this genus are notable for their large size and prominent horns, particularly in males. Some species, such as S. aloeus, are significant agricultural pests of oil palm plantations in Latin America, where they reproduce in decomposing organic matter from replanting operations.
Symmetrischema
Symmetrischema is a genus of gelechiid moths established by Povolný in 1967. The genus includes economically significant agricultural pests, most notably the Andean potato tuber moth (S. tangolias), which causes severe postharvest losses to stored potatoes in highland regions. Some species exhibit specialized feeding strategies, including the ability to induce parthenocarpic fruit development in host plants. The genus occurs across the Americas with at least one species introduced to Oceania.
Tamarixia
Tamarixia is a genus of small parasitoid wasps in the family Eulophidae, primarily known as parasitoids of psyllids (jumping plant lice, superfamily Psylloidea). The genus was established by Mercet in 1924 and contains approximately 50 described species distributed worldwide. Most species are ectoparasitoids, though at least one species has been recorded as an endoparasitoid. Several species, particularly T. radiata and T. triozae, are important biological control agents used in integrated pest management programs for citrus and solanaceous crops.
Telenomus
Telenomus is a genus of minute egg parasitoid wasps in the subfamily Telenominae, family Scelionidae. First described by Alexander Henry Haliday in 1833, species in this genus develop as parasitoids within the eggs of other insects, primarily targeting Lepidoptera and Hemiptera. Several species, notably T. remus and T. podisi, are important biological control agents used in integrated pest management programs against agricultural pests including fall armyworm (Spodoptera frugiperda) and stink bugs (Euschistus spp.). The genus exhibits a cosmopolitan distribution with particular significance in tropical and subtropical agricultural systems.
Telenomus podisi
Telenomus podisi is an egg parasitoid wasp first described by William Harris Ashmead in 1893. It is a primary natural enemy of stink bugs (Pentatomidae), with Euschistus heros documented as its principal host. The species has been extensively studied for biological control applications in soybean and other agricultural systems, particularly in Brazil. Laboratory studies demonstrate that females can form olfactory memories during immature development, with learned preferences persisting up to 72 hours post-emergence. The species is susceptible to several insecticides including imidacloprid, which is lethal, while some organic products show greater selectivity.
Teretriosoma
clown beetles
Teretriosoma is a genus of clown beetles in the family Histeridae, established by Horn in 1873. The genus comprises approximately 11 described species distributed primarily in the Americas. One species, Teretriosoma nigrescens, has been extensively studied as a biological control agent against the larger grain borer Prostephanus truncatus, a major pest of stored maize and cassava in Africa and Latin America. Members of this genus are small predatory beetles associated with decomposing organic matter and stored products.
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.
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Spider Mites
Tetranychidae is a family of mites commonly known as spider mites, comprising approximately 1,200 described species. Members are minute plant-feeding arachnids, typically measuring less than 1 mm in length. They are distributed worldwide and are significant agricultural pests, causing damage to hundreds of plant species by piercing leaf cells and extracting contents. Many species produce silk webbing for protection and dispersal. The family is divided into two subfamilies: Bryobiinae and Tetranychinae.
Tetranychinae
Tetranychinae is a subfamily of spider mites (Tetranychidae) containing economically significant agricultural and ornamental crop pests. The subfamily includes the genera Tetranychus, Eutetranychus, Oligonychus, Panonychus, Amphitetranychus, Schizotetranychus, Aponychus, Paraponychus, and Stylophoronychus. Species within this subfamily are phytophagous and pose serious threats to crop yield and quality. Identification relies primarily on morphological examination of adult male genitalia, though molecular and biochemical methods are increasingly employed for accurate species discrimination.
spider-mitesagricultural-pestsphytophagous-mitescrop-pestsinvasive-speciesacarologyintegrated-pest-managementmolecular-identificationDNA-barcodingTurkeyRussiaPaleotropicalNeotropicalNorth-AmericaMalusPrunusQuercusPiceaAbiesrosaceous-plantsconiferous-plantsmonocotyledonsdicotyledonsacaricide-resistancequarantine-pestsdiapausemale-genitaliaaedeagusPCR-RFLPreal-time-PCRLAMPMALDI-TOF-MSallozyme-analysisspecies-discriminationreproductive-isolationTetranychusEutetranychusOligonychusPanonychusAmphitetranychusSchizotetranychusAponychusParaponychusStylophoronychusEotetranychusBryobiaProstigmataAcariArachnidaArthropodaAnimaliaTetranychus urticae
twospotted spider mite, two-spotted spider mite, red spider mite
Tetranychus urticae, the twospotted spider mite, is a minute phytophagous mite and among the most destructive agricultural pests worldwide. Adults measure approximately 0.4 mm and are typically pale green for most of the year, turning red in later generations. The species is extremely polyphagous, feeding on over 1,100 plant species across 140 families. It reproduces through arrhenotokous parthenogenesis, with females emerging from fertilized eggs and males from unfertilized eggs. Populations can increase explosively under hot, dry conditions, expanding 70-fold in as few as six days. The species exhibits the highest frequency of pesticide resistance among arthropods and was the first chelicerate to have its genome fully sequenced (2011).
Tetropium
spruce longhorn beetles
Tetropium is a genus of long-horned beetles (Cerambycidae) containing at least 20 described species, sometimes classified in its own monotypic tribe Tetropiini. Several species are significant forest pests, particularly of spruce (Picea) trees. The genus includes economically important species such as T. fuscum (brown spruce longhorn beetle), an invasive pest in Atlantic Canada, and T. castaneum. Adults are attracted to synthetic pheromones and host tree volatiles, making them amenable to detection and monitoring using baited traps.
Tetropium parvulum
Northern Spruce Borer
Tetropium parvulum, the northern spruce borer, is a small cerambycid beetle specialized on spruce hosts. It was elevated from synonymy with T. cinnamopterum based on distinct morphological differences in larvae and adults, and exhibits strict host specificity to Picea compared to the conifer generalist T. cinnamopterum. The species has a one-year life cycle and is an economically important borer of white and Engelmann spruce logs in western Canada.
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