Environmental Entomology最新文献_第4页

Presence and positioning of insecticidal strips in Jackson traps affect catch of oriental fruit flies and melon flies (Diptera: Tephritidae). Jackson诱捕器中杀虫条的设置和定位对果蝇和瓜蝇（双翅目：蝗科）的捕获有影响。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-07-02 DOI: 10.1093/ee/nvag082

Todd Shelly, Thomas Fezza

{"title":"Presence and positioning of insecticidal strips in Jackson traps affect catch of oriental fruit flies and melon flies (Diptera: Tephritidae).","authors":"Todd Shelly, Thomas Fezza","doi":"10.1093/ee/nvag082","DOIUrl":"https://doi.org/10.1093/ee/nvag082","url":null,"abstract":"Many countries operate trapping programs to detect incursions of pestiferous fruit flies (Diptera: Tephritidae). Three male-specific attractants form the cornerstone of these surveillance networks: methyl eugenol for Bactrocera species, cue-lure for Bactrocera and Zeugodacus species, and trimedlure for Ceratitis species. Traditionally, these lures were applied as a liquid to a cotton wick, but polymeric plugs are being used more widely. Regulations require that any toxicant placed in a trap with a lure-bearing plug must be presented separately from the plug, which, most commonly, is held in a plastic, perforated basket inside a Jackson trap. The present study examined whether the presence or position of an insecticidal DDVP (dichlorvos) strip within a Jackson trap affects capture of Bactrocera dorsalis, Zeugodacus cucurbitae, and Ceratitis capitata males. Captures were compared among (i) traps without a DDVP strip, (ii) traps with a DDVP strip placed in a separate basket from the lure-bearing plug, and (iii) traps with a DDVP strip placed in the same basket as the plug. Results were similar for B. dorsalis and Z. cucurbitae: traps with the toxicant in the same basket as the male-lure plug captured significantly more males than traps with the toxicant in a separate basket. For B. dorsalis, traps with the toxicant in a separate basket from the lure-bearing plug had significantly higher captures than traps lacking a toxicant, while results for Z. cucurbitae were inconsistent between study sites. Neither the presence nor position of DDVP strips in Jackson traps influenced captures of C. capitata males.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 4","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148618848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of endophyte-mediated resistance against Noctua pronuba (Lepidoptera: Noctuidae) in cool-season grasses in Oregon. 俄勒冈州冷季禾草内生菌对原夜蛾（鳞翅目：夜蛾科）的抗性评价。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-07-02 DOI: 10.1093/ee/nvag074

Julaluck Intasin, Hannah M Rivedal, Nicole P Anderson, Alec R Kowalewski, Yanming Di, Navneet Kaur

{"title":"Evaluation of endophyte-mediated resistance against Noctua pronuba (Lepidoptera: Noctuidae) in cool-season grasses in Oregon.","authors":"Julaluck Intasin, Hannah M Rivedal, Nicole P Anderson, Alec R Kowalewski, Yanming Di, Navneet Kaur","doi":"10.1093/ee/nvag074","DOIUrl":"https://doi.org/10.1093/ee/nvag074","url":null,"abstract":"Epichloë spp. grow symbiotically within cool-season grasses and can provide crop protection against pests and drought stress. Winter cutworm (Noctua pronuba L.) is a serious insect pest of cool-season turfgrass and grass seed crops in Oregon (United States). In 2023, we conducted 2 greenhouse experiments to measure the effect of Epichloë infection in 8 cultivars of tall fescue (Schedonorus arundinaceus (Schreb.) Dumort) and perennial ryegrass (Lolium perenne L.) on N. pronuba mortality, weight gain, grass biomass, and feeding damage at 3 time points. Epichloë infection in grass plants was molecularly validated postexperiment. We did not observe an effect of Epichloë infection level or grass cultivar on N. pronuba, regardless of grass species in trial 1. In trial 2, Epichloë infection level effects remained minimal, while cultivar affected feeding damage at 3 and 12 d in both grass species. Feeding damage at 15 d did not vary among cultivars in both tall fescue and perennial ryegrass due to continuous and severe defoliation by N. pronuba. Insect mortality and weight gain were different among tall fescue cultivars. However, some cultivars were forage type, which was selected to be palatable to grazing animals, and could be preferred by the larvae. The perennial ryegrass cultivars were all turf-type and showed no variability in insect responses. The observed feeding damage variations were likely associated with cultivar-specific traits rather than Epichloë infection levels. Understanding the role of grass genotype in grass-Epichloë symbioses is critical to develop practical management for N. pronuba, and other cutworm species.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 4","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148410753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental factors shaping generalist carabid beetle communities and populations of associated slug prey. 环境因素塑造了甲虫群落和相关蛞蝓猎物的种群。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-07-02 DOI: 10.1093/ee/nvag080

Thabu Mugala, David Owens, Scott R McCluen, Kelly A Hamby, Michael S Crossley

{"title":"Environmental factors shaping generalist carabid beetle communities and populations of associated slug prey.","authors":"Thabu Mugala, David Owens, Scott R McCluen, Kelly A Hamby, Michael S Crossley","doi":"10.1093/ee/nvag080","DOIUrl":"10.1093/ee/nvag080","url":null,"abstract":"Slugs are a difficult pest to manage in conservation agriculture, where reduced soil disturbance and increased ground cover create ideal conditions for slug population growth, but also likely promote natural suppression by ground-dwelling arthropods. However, it remains unclear which predatory arthropod species are associated with reduced slug abundance and how environmental factors shape this predatory community composition. Here, we examined relationships among ground-dwelling arthropods (carabid beetles, spiders, harvestmen), weather, and land cover and their effects on slug activity density, which was measured over 2 years across 37 commercial corn and soybean fields in the US Mid-Atlantic. We found 21 carabid species, and a positive relationship between slug and carabid beetle activity density, suggesting that this carabid beetle community may be preying upon slugs opportunistically. Slug activity density was reduced with tillage, higher temperatures, and a high proportion of corn in the landscape, while carabid activity density in crop fields decreased where there was greater surrounding land cover diversity. Neither neonicotinoid seed treatment nor foliar insecticides significantly affected slugs or carabid beetles. Carabid community composition was shaped by temperature, rainfall, and tillage, while carabid species richness was unrelated to within-field cover or landscape composition. Although we did not assess predation rates, our findings suggest great potential to promote natural suppression of slugs within conservation agriculture systems where diverse carabid assemblages persist. Our study further underscores the need and opportunity for targeted management of ground cover in and around crop fields to maintain robust carabid beetle communities and encourage slug predation amidst landscapes dominated by corn and soybean.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 4","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148600624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Short-term resilience, seasonal variability, and reduced contemporary diversity in a central Texas moth fauna (Lepidoptera). 德克萨斯州中部飞蛾动物群（鳞翅目）的短期恢复力、季节变异性和当代多样性减少。

IF 1.5 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag053

Valarie L Gabbard, James Gillaspy, Jane E Strobel, Briseida E Yáñez, Karalee A Corbeil, Lawrence E Gilbert, Kenneth P Wray, Steven Gibson, Robert M Plowes, Alex Wild, Rossana Maguiña-Conde

{"title":"Short-term resilience, seasonal variability, and reduced contemporary diversity in a central Texas moth fauna (Lepidoptera).","authors":"Valarie L Gabbard, James Gillaspy, Jane E Strobel, Briseida E Yáñez, Karalee A Corbeil, Lawrence E Gilbert, Kenneth P Wray, Steven Gibson, Robert M Plowes, Alex Wild, Rossana Maguiña-Conde","doi":"10.1093/ee/nvag053","DOIUrl":"10.1093/ee/nvag053","url":null,"abstract":"Moths are important environmental indicators and ecosystem service providers, yet they remain understudied and increasingly threatened by climate change, habitat loss, and disturbance. The Lost Pines region of central Texas is an isolated remnant of hardwood-pine forest within a post oak savannah ecoregion that has recently experienced several wildfires, making it vulnerable to environmental change and biodiversity loss. Moths in this region have received little study, especially regarding diversity, community composition variability, and fire. We surveyed moths in the Lost Pines to compare diversity metrics and community composition across (i) 1990s and present-day surveys, (ii) fall and spring seasons, and (iii) burned and unburned areas. Moths were collected using UV bucket traps at four burned and four unburned locations one year after the 2022 Pine Pond Fire at the Stengl Lost Pines Biological Station, with three sampling events in fall 2023 and three in spring 2024. Our results revealed lower diversity in the present-day compared to the 1990s, in fall relative to spring, and in unburned compared to burned areas. Based on species presence-absence data, moth community composition differed significantly between historical and present surveys. Abundance-based analyses showed little community composition overlap between seasons and near-complete overlap between burn treatments. These findings indicate a lower contemporary moth diversity with high assemblage turnover, strong seasonal variability, and short-term (∼1.5 yr) resilience after fire Our results highlight the value of historical baselines for detecting potential biodiversity change and emphasize the need for continued monitoring of moth communities in fragmented landscapes.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148148878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The secondary symbiont Arsenophonus improves thermal tolerance of Aphis gossypii (Hemiptera: Aphididae) exposed to extreme heat stress. 次生共生体Arsenophonus提高了棉蚜（半翅目：蚜虫科）在极端热胁迫下的耐热性。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag071

Abulaiti Alimu, Xiao Zhong, Yu Gao, Yanhui Lu

{"title":"The secondary symbiont Arsenophonus improves thermal tolerance of Aphis gossypii (Hemiptera: Aphididae) exposed to extreme heat stress.","authors":"Abulaiti Alimu, Xiao Zhong, Yu Gao, Yanhui Lu","doi":"10.1093/ee/nvag071","DOIUrl":"https://doi.org/10.1093/ee/nvag071","url":null,"abstract":"Bacterial endosymbionts are ubiquitous in insects and play a critical role in host ecology, including adaptability to thermal extremes. The cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), is a major agricultural pest in China that harbours diverse microbial symbionts. However, the contribution of Arsenophonus, a key secondary symbiont in A. gossypii, to the host's thermal tolerance remains poorly understood. In this study, we used antibiotics to eliminate Arsenophonus from A. gossypii and evaluated the effects on host thermal tolerance by comparing the life-history traits of an Arsenophonus-infected line (A-infected) and an antibiotic-cured, Arsenophonus-deleted line (A-deleted) across a temperature gradient (26-35 °C). Our results revealed that while host performance declined for both lines as temperatures increased, the magnitude of these fitness costs was significantly modulated by infection status. No significant differences in fitness parameters were observed at 26 °C or 29 °C. Furthermore, at 32 °C, the A-infected line exhibited significantly extended adult longevity compared with the A-deleted line. Under extreme heat stress (35 °C), the infected line surpassed the cured line in both longevity and fecundity. These results confirm the dependency of A. gossypii on Arsenophonus for a conditional fitness advantage at high temperatures, effectively broadening its thermal niche. Ultimately, this symbiont-mediated heat tolerance provides new insight regarding the ecological resilience and population stability of this pest in warming agricultural environments.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148338287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plant defense mixtures result in distinct volatile blends with trade-offs for aphid resistance and biological control. 植物防御混合物产生不同的挥发性混合物，在抗蚜虫和生物控制方面进行权衡。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag035

Rowda Altamimi, Bijay Subedi, Danilo F B Dos Santos, Jared G Ali, Mônica F Kersch-Becker

{"title":"Plant defense mixtures result in distinct volatile blends with trade-offs for aphid resistance and biological control.","authors":"Rowda Altamimi, Bijay Subedi, Danilo F B Dos Santos, Jared G Ali, Mônica F Kersch-Becker","doi":"10.1093/ee/nvag035","DOIUrl":"10.1093/ee/nvag035","url":null,"abstract":"Plants deploy multiple defense pathways to deter herbivores, with consequences that can drive predator-prey interactions. While the effects of interspecific variation in plant defenses on herbivores and natural enemy are well understood, far less is know about the consequences of intraspecific differences in defense phenotypes. This limits our ability to predict how plant trait diversity influences pest control. Herein, we tested how intraspecific defense diversity in tomato (Solanum lycopersicum Linnaeus) affects potato aphid populations (Macrosiphum euphorbiae Thomas) and interactions with the convergent ladybeetle (Hippodamia convergens Guérin-Méneville). We independently primed the jasmonic acid (JA) pathway and the salicylic acid (SA) pathway and established four treatments: monocultures of untreated controls, JA-treated plants, SA-treated plants, and mixtures of all three defense phenotypes. Half of the cages received one ladybeetle per 100 aphids. We hypothesized that defense mixtures would reduce aphid populations, increase their dispersal relative to monocultures, and strengthen predator effects. Instead, our findings suggest that while combining multiple defense phenotypes can directly limit herbivores, it may also disrupt predator-prey interactions. In the presence of predators, SA-treated monocultures resulted in the highest reduction in aphid density and population growth, while JA-treated monocultures led to increased aphid dispersal. Predator effects were reduced in defense mixtures which emitted a distinct volatile blend that partially overlapped with SA- and JA-treated monocultures but differed from controls. Integrating knowledge of defense pathways with natural enemy effectiveness is crucial for developing integrated pest management strategies that suppress pests both directly and through biological control.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148014023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cold tolerance of field-collected soybean gall midge (Diptera: Cecidomyiidae) under laboratory overwintering conditions. 田间采集的大豆瘿蚊（双翅目：瘿蚊科）在实验室越冬条件下的耐寒性。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag044

Pheylan A Anderson, Robert C Venette, Bruce D Potter, Robert L Koch

{"title":"Cold tolerance of field-collected soybean gall midge (Diptera: Cecidomyiidae) under laboratory overwintering conditions.","authors":"Pheylan A Anderson, Robert C Venette, Bruce D Potter, Robert L Koch","doi":"10.1093/ee/nvag044","DOIUrl":"10.1093/ee/nvag044","url":null,"abstract":"Soybean gall midge, Resseliella maxima Gagné, was first described in 2019 following widespread outbreaks in soybean across the midwestern United States. Larval feeding inside stems causes lesions, lodging, and yield loss. Third instars overwinter in the soil within silken cocoons, but their cold tolerance, an important factor for survival in the temperate midwestern United States, is unknown. In 2022 and 2023, late-season soybean stems with R. maxima were collected from southwestern Minnesota. Third instars were retrieved and transferred to vials of sand, where they successfully burrowed and formed cocoons. Vials with cocoons were stored at 13 and 3 °C, and larval supercooling points and lower lethal temperatures (LTs) were measured after 1 and 2 months. All individuals remained larvae by the time of measurements, suggesting they were in diapause. Supercooling points and lower LTs were primarily between -20 and -25 °C. Alignment between these measurements suggests that R. maxima is freeze-intolerant. There were no consistent effects of storage time or temperature, indicating a lack of further acclimation. The temperature causing 50% mortality (LT50) was -19.8 °C in both 2022 (95% CI: -26.4 to -13.2 °C) and 2023 (95% CI: -26.6 to -13.0 °C). Historical soil temperature data reveal the coldest temperature recorded from 2015 to 2024 near the northern portion of R. maxima's known range (-17.7 °C) would cause <50% mortality to R. maxima populations, while average coldest temperatures were substantially warmer (-3.1 to -8.5 °C). Short-term exposures to winter soil temperatures may not cause significant mortality to overwintering R. maxima in the midwestern United States.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147863889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Future habitat shifts of pollinating insects in the climate-sensitive transition zone of the Qinling-Daba-Dabie Mountains, central China. 秦岭—大巴山—大别山气候敏感过渡带传粉昆虫未来生境转移

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag038

Jin Tan, Yagang Shen, Bin Ye, Xia Wan

{"title":"Future habitat shifts of pollinating insects in the climate-sensitive transition zone of the Qinling-Daba-Dabie Mountains, central China.","authors":"Jin Tan, Yagang Shen, Bin Ye, Xia Wan","doi":"10.1093/ee/nvag038","DOIUrl":"10.1093/ee/nvag038","url":null,"abstract":"As a vital functional group for ecosystem health, pollinating insects face global declines due to high climate sensitivity. The Qinling-Daba-Dabie Mountains, situated at the Oriental-Palearctic ecotone, are a key climate-sensitive biodiversity hotspot in Chinese fauna. However, research on pollinator habitat dynamics in this region remains scarce. In this study, we selected 4 pollinators: Hymenoptera bees (Hy-A), Diptera syrphid flies (Di-S), other major pollinating Diptera (Di-AC), and Lepidoptera butterflies (Le-R). The MaxEnt model combined with ecological niche analysis was utilized to simulate macroscopic potential climatically suitable habitats and climatic niche overlap under current conditions and future climate scenarios (SSP1-26 and SSP5-85 for the 2030s and 2050s). Results indicate that, under current conditions, high-suitability areas of these pollinators are located along the main ridges of the Qinling, Daba, and Dabie Mountains. Future warming is projected to cause significant habitat contraction for most groups, with centroids shifting northwestward or toward higher elevations. Le-R exhibited stability or slight expansion in certain scenarios, likely due to strong dispersal capabilities and thermal tolerance. Conversely, Di-S displayed the highest habitat vulnerability, suffering the most severe habitat loss and climatic niche divergence. The mid-to-high elevations of the Qinling and Daba Mountains function as core refugia, whereas low-elevation margins face severe degradation, particularly under high-emission scenarios (SSP5-85). This study represents the first investigation into the ecological responses of these pollinators in sensitive zones, offering a scientific foundation for biodiversity conservation, optimizing protected area networks, and strengthening regional cooperation.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147835186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal phenology of Amauromyza karli (Diptera: Agromyzidae) in quinoa in San Luis Valley of Colorado. 美国科罗拉多州圣路易斯谷藜麦黑穗病季节物候特征（双翅目：稻蛾科）。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag069

Neha Panwar, Lara M Amiri-Kazaz, Adrianna Szczepaniec

{"title":"Seasonal phenology of Amauromyza karli (Diptera: Agromyzidae) in quinoa in San Luis Valley of Colorado.","authors":"Neha Panwar, Lara M Amiri-Kazaz, Adrianna Szczepaniec","doi":"10.1093/ee/nvag069","DOIUrl":"10.1093/ee/nvag069","url":null,"abstract":"Amauromyza karli Hendel (Diptera: Agromyzidae) has recently emerged as a damaging stem-boring pest of quinoa in Colorado and other quinoa-producing regions of the United States. Severe infestations have been associated with substantial yield losses, highlighting the need for improved understanding of the pest's seasonal dynamics to support integrated pest management (IPM) strategies. The objective of this study was to characterize the seasonal phenology of A. karli in quinoa production systems in the San Luis Valley of Colorado. Adult flight activity was monitored using yellow sticky traps over 4 growing seasons, and larval incidence and stem exit holes were quantified across 2 years. Our results indicated that larval densities peaked in early June with infestations reaching over 90% by mid-July. An ordinal-day, 2-parameter logistic model based on cumulative trap captures was the most parsimonious model and predicted that 50% of adult activity occurred around late June. In addition, a negative binomial mixed-effects model showed no significant association between quinoa field size and adult captures, suggesting that variation in pest pressure is driven by field-level heterogeneity and temporal factors. These findings provide a framework for improving monitoring and management of A. karli. Aligning the timing of biological or chemical control measures with periods of peak adult activity, as well as adjusting planting dates to reduce exposure of vulnerable crop stages, may help mitigate damage caused by this pest. Overall, this study contributes foundational phenological information that can be used to inform IPM decision-making and reduce economic losses in quinoa production.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13287995/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148301492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of deployment strategies for attracticidal spheres for management of the invasive Drosophila suzukii (Diptera: Drosophilidae) in conventional and organic small fruit production systems. 传统和有机小水果生产系统中对入侵铃木果蝇（双翅目：果蝇科）管理的诱虫球部署策略评价。

IF 1.8 3区农林科学

Environmental Entomology Pub Date : 2026-05-05 DOI: 10.1093/ee/nvag047

Tracy C Leskey, Harit K Bal, G Lee Carper, John P Cullum, Johanna E Elsensohn, Matthew Grieshop, Johnattan Hernández-Cumplido, Christopher Hott, Jana C Lee, Anne L Nielsen, Laura J Nixon, Kevin B Rice, Cesar Rodriguez-Saona, Craig R Roubos, Anthony Rugh, Brent D Short, Ash Sial, Diego Bastos Silva

{"title":"Evaluation of deployment strategies for attracticidal spheres for management of the invasive Drosophila suzukii (Diptera: Drosophilidae) in conventional and organic small fruit production systems.","authors":"Tracy C Leskey, Harit K Bal, G Lee Carper, John P Cullum, Johanna E Elsensohn, Matthew Grieshop, Johnattan Hernández-Cumplido, Christopher Hott, Jana C Lee, Anne L Nielsen, Laura J Nixon, Kevin B Rice, Cesar Rodriguez-Saona, Craig R Roubos, Anthony Rugh, Brent D Short, Ash Sial, Diego Bastos Silva","doi":"10.1093/ee/nvag047","DOIUrl":"10.1093/ee/nvag047","url":null,"abstract":"Drosophila suzukii (Matsumura), spotted-wing drosophila is an extremely destructive, invasive global pest of small fruit production. Frequent insecticide applications are the most commonly used management tool against this pest, as females deposit eggs in ripening fruit leading to larval infestation at harvest. However, other strategies aimed at reducing D. suzukii infestation continue to be explored to reduce reliance on insecticides and increase ecological sustainability. One such strategy is deployment of attracticidal spheres; these are visually attractive red spheres that provide a continuous release of a fresh toxicant and feeding stimulant mixture on their surface. However, optimal deployment strategies for spheres within small fruit plantings have not been developed to maximize their impact against foraging D. suzukii adults. Here, we evaluated deployment height of spheres within the canopies of small fruit plants (blueberry, raspberry and blackberry) in conventional production systems in 3 states, and whole plot (grid) and perimeter sphere deployment layouts in both conventional and organic blueberry production systems in 6 states. In separate studies, we also evaluated the potential for nontarget impacts on biological control agents and pollinators. While we observed reduced infestation, based on sphere deployment in some trials, results were not consistent likely due to differences in production practices and D. suzukii relative densities. We also did not observe negative impacts on natural enemies or pollinators. Ultimately, for attracticidal spheres to be of value to small fruit growers, more information regarding management practices that enhance or limit their efficacy must be conducted.","PeriodicalId":11751,"journal":{"name":"Environmental Entomology","volume":"55 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147927411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0