Journal of economic entomology最新文献_第5页

Scaling up the deployment of Psidium cattleyanum biocontrol in a Tropical Forest. 扩大在热带森林中应用牛皮枯生物防治的规模。

Journal of economic entomology Pub Date : 2025-06-26 DOI: 10.1093/jee/toaf147

Ryan L Perroy, Roberto Rodriguez, M Tracy Johnson, Olivia Jarvis

{"title":"Scaling up the deployment of Psidium cattleyanum biocontrol in a Tropical Forest.","authors":"Ryan L Perroy, Roberto Rodriguez, M Tracy Johnson, Olivia Jarvis","doi":"10.1093/jee/toaf147","DOIUrl":"https://doi.org/10.1093/jee/toaf147","url":null,"abstract":"It can be challenging to deploy and monitor biocontrol for invasive species, particularly in remote forest settings. One of the most abundant and disruptive invasive tree species in Hawai'i and across the Pacific is Psidium cattleyanum Sabine (strawberry guava), which replaces native vegetation and negatively impacts forest structure and ecosystem services. A Brazilian leaf-galling insect named Tectococcus ovatus Hempel (Homoptera: Eriococcidae) is an approved biocontrol for strawberry guava, but its introduction to date has been restricted to areas with established road and trail networks using ground-based methods. The aim of our study was to develop and test aerial methods of deploying T. ovatus within the larger goal of landscape-scale deployment. We also investigated using very high-resolution aerial imagery to detect T. ovatus galls on infected leaves to monitor post-deployment inoculation success and quantify spread. We found drone-based aerial deployment using a small 4-unit system was nearly 5 times faster than a ground-based approach in a heavily invaded lowland tropical forest setting and produced a statistically larger inoculation success rate one year after deployment, likely due to more central and higher placement within the targeted canopies. We found aerial imagery to be a useful tool to determine inoculation success and quantify spatiotemporal spread. We also found that larger-capacity drone platforms and conventional helicopters can successfully deploy T. ovatus onto individual targeted tree canopies and that landscape-scale deployment operations are feasible using these methods. Our findings are relevant to others working to deploy and monitor biocontrol in forested ecosystems worldwide.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the low lethal effects of emamectin benzoate, chlorantraniliprole, and chlorfenapyr on life parameters and detoxification enzyme activity in Helicoverpa armigera (Lepidoptera: Noctuidae). 甲维菌素苯甲酸酯、氯虫腈和氯虫腈对棉铃虫生命参数和解毒酶活性的低致死效应评价

Journal of economic entomology Pub Date : 2025-06-24 DOI: 10.1093/jee/toaf063

Fengyun Fang, Hong Sun, Wei Wang, Mingyuan Lv, Yanlu Chen, Gemei Liang

{"title":"Assessment of the low lethal effects of emamectin benzoate, chlorantraniliprole, and chlorfenapyr on life parameters and detoxification enzyme activity in Helicoverpa armigera (Lepidoptera: Noctuidae).","authors":"Fengyun Fang, Hong Sun, Wei Wang, Mingyuan Lv, Yanlu Chen, Gemei Liang","doi":"10.1093/jee/toaf063","DOIUrl":"https://doi.org/10.1093/jee/toaf063","url":null,"abstract":"The cotton bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), is a polyphagous global agricultural pest that brings serious losses to many kinds of crops. Emamectin benzoate, chlorantraniliprole, and chlorfenapyr are effective insecticides for their control in the field so far. Here, the low lethal effects of the 3 insecticides on H. armigera were evaluated. Exposure to the low lethal concentration (LC25) of these insecticides resulted in prolonged larval and adult developmental periods, with variations in pupal duration across in treatments. Specifically, emamectin benzoate and chlorantraniliprole extended pupal duration, whereas chlorfenapyr reduced it. All treatments exhibited lower pupal weight, emergence rate, and fecundity compared to the control. Additionally, life table parameters such as the net reproductive rate (R0), and intrinsic rate of increase (r) in treated groups were reduced, while the mean generation time (T) was extended in these treatments. Enzyme activity assays displayed that these insecticides caused different detoxification enzyme activities variations, indicating that CarE, MFO, and GST may play key roles in the detoxification of the tested insecticides in H. armigera, respectively. Collectively, the low lethal concentration of emamectin benzoate, chlorantraniliprole, and chlorfenapyr affect the biological traits and detoxification enzyme activities of H. armigera, and the rotation of these insecticides in the field may delay the development of resistance in the future.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Source population determination for boll weevil re-infestation Events in Texas. 德克萨斯州棉铃象鼻虫再侵染事件的源种群测定。

Journal of economic entomology Pub Date : 2025-06-22 DOI: 10.1093/jee/toaf139

Zachary P Cohen, Lindsey C Perkin, Adriane N Fifield, Tyler J Raszick, Gregory A Sword, Charles P-C Suh

{"title":"Source population determination for boll weevil re-infestation Events in Texas.","authors":"Zachary P Cohen, Lindsey C Perkin, Adriane N Fifield, Tyler J Raszick, Gregory A Sword, Charles P-C Suh","doi":"10.1093/jee/toaf139","DOIUrl":"https://doi.org/10.1093/jee/toaf139","url":null,"abstract":"The boll weevil, Anthonomus grandis grandis Boheman, is a pest of commercial cotton in the Americas that has been successfully eradicated throughout most of the United States. However, endemic populations in the Lower Rio Grande Valley (LRGV) along the Texas-Mexico border continue to threaten U.S. cotton production. When a boll weevil is captured in an eradicated zone, knowledge of its geographic origin benefit eradication programs and helps to implement safeguards to reduce future infestation. Here, we determine the likely geographic origin for a 2018 boll weevil outbreak in a previously eradicated region near Kingsville, TX, using independent methods of population ancestry, relatedness, and population genetic approaches. We measure and compare the genetic signatures to similar outbreaks in other eradicated zones of Texas from prior years, as well as to boll weevil individuals captured throughout the LRGV. Finally, we assess the reliability of our relatedness metrics by validating our approach with genetic lines of the model insect Tribolium castaneum Herbst. We conclude that the 2018 boll weevil outbreak in Kingsville likely originated from an independent introduction of individuals from the LRGV. Relatedness patterns among these samples also indicate they are closely related to each other, e.g., parent-offspring, sibling-sibling, or half siblings, suggesting reproduction occurred in nearby cotton fields following the introduction of a few individuals into the region. Together, these methods and results illustrate the utility of whole-genome sequencing, demographic reconstruction, classical population genetics, and contemporary pairwise relatedness for non-model insects to support precise agricultural management and conclusive source estimation.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Organic colony management practices are profitable for backyard beekeepers. 有机蜂群管理实践对后院养蜂人是有益的。

Journal of economic entomology Pub Date : 2025-06-21 DOI: 10.1093/jee/toaf133

Robyn M Underwood, Timothy W Kelsey, Nash E Turley, Margarita M López-Uribe

{"title":"Organic colony management practices are profitable for backyard beekeepers.","authors":"Robyn M Underwood, Timothy W Kelsey, Nash E Turley, Margarita M López-Uribe","doi":"10.1093/jee/toaf133","DOIUrl":"https://doi.org/10.1093/jee/toaf133","url":null,"abstract":"Management practice decisions are critical for maintaining honey bee, Apis mellifera L., colony health, and the profitability of beekeeping operations. These practices vary with the goals and the size of the beekeeping operations, particularly regarding the type and frequency of pest management strategies used. However, the impact of these practices on the profitability of the operations has rarely been quantified. Here, we compare the impact of 3 honey bee colony management systems (chemical-free, conventional, and organic) on the profitability of small stationary honey-and-bee-producing beekeeping operations. Over the 3 yr of the study, we found that the operations using the chemical-free management system had economic losses, while the operations using the conventional or organic management system generated revenue. Honey production and bee production were highest in the organic and conventional management systems resulting in profits that were 14 and 11 times higher than in the chemical-free management system, respectively. Numerically, honey production was 50% higher in operations using an organic management system than in operations using a conventional management system in year 3. Across systems, the first year of the beekeeping operation required the highest economic inputs, but their costs for the second and third years were significantly lower. Our results provide evidence that active parasitic mite control within colonies is critical for the profits of small-scale stationary beekeeping operations and that organic management is a profitable, long-term system for stationary beekeepers.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Floral scent affects bumblebee pollinator preferences on the flowers of four tomato cultivars under greenhouse conditions. 在温室条件下，花的气味影响了大黄蜂对四种番茄品种花的传粉偏好。

Journal of economic entomology Pub Date : 2025-06-21 DOI: 10.1093/jee/toaf102

Hong Zhang, Shuang Shan, Zhiyong Zhou, Shaohua Gu, Zibo Li, Adel Khashaveh, Huanhuan Chen, Jiandong An, Yongjun Zhang

{"title":"Floral scent affects bumblebee pollinator preferences on the flowers of four tomato cultivars under greenhouse conditions.","authors":"Hong Zhang, Shuang Shan, Zhiyong Zhou, Shaohua Gu, Zibo Li, Adel Khashaveh, Huanhuan Chen, Jiandong An, Yongjun Zhang","doi":"10.1093/jee/toaf102","DOIUrl":"https://doi.org/10.1093/jee/toaf102","url":null,"abstract":"Bumblebee pollination is essential for greenhouse tomato. Floral traits, such as olfactory signal and food reward, have significant influences on pollinator foraging decisions and thus result in different pollination performance. Chemical-analytical, bioassays, and electroantennogram tests were used to determine whether these tomato Lycopersicum esculentum cultivars differed in floral scent and food reward, and how these floral traits affected bumblebee Bombus lantschouensi visitation performance. Bumblebees showed obvious foraging preferences among different tomato cultivars (P = 0.001). Compared with the other 3 cultivars, fewer bumblebees visited the 'Jingdanxiaohuangyu' cultivar. Moreover, the pollen quantity in the 'Jingdanxiaohuangyu' and 'Qianxi' cultivars (3.1×104-3.2×104) was lower than that in the 'Pingguoqing' and 'Zhefen' cultivars (8.5×104-8.6×104). In the floral scent composition analysis of the 4 cultivars, the floral components of 'Jingdanxiaohuangyu' were significantly different from those of the other 3 cultivars (P = 0.0032), and naïve bumblebees showed repulsion by the floral scent of 'Jingdanxiaohuangyu' (P = 0.035). Gas chromatographic-electroantennographic detection recordings and behavior choice tests revealed that the electroantennogram (EAG)-active compound isophorone, which only occurred in the floral scent of 'Jingdanxiaohuangyu', had a repellent effect on bumblebees. These findings suggest that olfactory signals from host flowers play an important role in regulating bee pollinator foraging behaviors, and more attention should be given to volatile-mediated pollinator attraction during tomato breeding.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Topical exposure to (E)-β-farnesene alters behavior, reproduction, and wing dimorphism in the English grain aphid, Sitobion avenae (Hemiptera: Aphididae). 局部暴露于(E)-β-法尼辛可以改变英国谷物蚜虫（半翅目：蚜虫科）的行为、繁殖和翅膀二态性。

Journal of economic entomology Pub Date : 2025-06-20 DOI: 10.1093/jee/toaf129

Yi Yan, Yunhui Zhang, Bo Zhang, Chaoxia Yang, Fangmei Zhang, Changping Wei, Xuguo Zhou, Xun Zhu, Xiangrui Li

{"title":"Topical exposure to (E)-β-farnesene alters behavior, reproduction, and wing dimorphism in the English grain aphid, Sitobion avenae (Hemiptera: Aphididae).","authors":"Yi Yan, Yunhui Zhang, Bo Zhang, Chaoxia Yang, Fangmei Zhang, Changping Wei, Xuguo Zhou, Xun Zhu, Xiangrui Li","doi":"10.1093/jee/toaf129","DOIUrl":"https://doi.org/10.1093/jee/toaf129","url":null,"abstract":"(E)-β-farnesene (EβF), a sesquiterpene widely recognized for its role in aphid alarm signaling, triggers escape behaviors and influences aphid population dynamics. Despite its potential as a biological control agent, the effects of EβF on the English grain aphid Sitobion avenae (Fabricius) (Hemiptera: Aphididae), a major wheat pest, remain insufficiently explored. In this study, we topically applied EβF at a concentration gradient (10 to 1,000 ng/μl) to various developmental stages of S. avenae and assessed their behavioral responses, development, reproduction, and winged offspring ratio under different population densities. Our results revealed that EβF at 10 ng/μl induced significant behavioral changes, including leg shaking, fast walking, and falling from host plants, across all developmental stages. Exposure to 200 ng/μl EβF significantly reduced fecundity by 19.6% and shortened lifespan by 17.8%, while increasing the proportion of winged offspring by 19.8%, particularly under low parental density combined with high offspring density. Field trials further revealed that a higher concentration of EβF (1,000 ng/μl) led to a 25% increase in the proportion of winged offspring compared to controls, with environmental factors such as population density influencing the response. These findings confirm the insecticidal and density-dependent effects of EβF on S. avenae, with transgenerational impacts on wing dimorphism, highlighting its potential for the sustainable aphid control in wheat ecosystems.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crop edge sampling and early life stage detection for improved monitoring of spotted-wing drosophila, Drosophila suzukii (Diptera: Drosophilidae), in berry crops. 作物边缘取样和早期生活期检测对浆果作物中斑翼果蝇的监测。

Journal of economic entomology Pub Date : 2025-06-20 DOI: 10.1093/jee/toaf122

Hannah K Levenson, Steven Van Timmeren, Arun Babu, Rufus Isaacs, Ashfaq A Sial, Vaughn Walton, Hannah J Burrack

{"title":"Crop edge sampling and early life stage detection for improved monitoring of spotted-wing drosophila, Drosophila suzukii (Diptera: Drosophilidae), in berry crops.","authors":"Hannah K Levenson, Steven Van Timmeren, Arun Babu, Rufus Isaacs, Ashfaq A Sial, Vaughn Walton, Hannah J Burrack","doi":"10.1093/jee/toaf122","DOIUrl":"https://doi.org/10.1093/jee/toaf122","url":null,"abstract":"In the 16 years since the initial detection of Drosophila suzukii Matsumura in the continental United States, integrated pest management programs in susceptible crops have been disrupted, resulting in unsustainable increases in insecticide sprays. Effective monitoring is critical for informing treatment decisions and to guide product selection when this pest is present. However, adult traps are difficult to process and poorly correlate with larval infestation in fruit. Recently focus has been placed on larval monitoring to document whether fruit are uninfested, starting to become infested, or heavily infested. We compared fruit sampling data from 4 states to determine whether these provide D. suzukii monitoring information which could better aid management decisions. We collected samples weekly for 6 wk at field edges and field interiors of berry crop plantings in Georgia, North Carolina, Michigan, and Oregon. Monitoring eggs and first instar larvae at field edges provided detection 2 wk earlier than monitoring later life stages or in field interiors. Here, we provide the first predictive models for the relationship between eggs and larvae in blackberries and blueberries. Our power analysis estimated that a minimum of 13 samples, either of individual fruit for egg counts or of 30 to 50 berry samples for larval extraction, are needed per location to detect the initial egg and larval infestation with 80% precision. These findings provide growers and other decision-makers with improved D. suzukii detection sensitivity, likely resulting in reduced pesticide application frequency and enhanced integrated pest management programs for berry crops producers.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Developing targets to control multiple pest fly species: violet polyester targets effectively attract tsetse (Diptera: Glossinidae), stable flies (Diptera: Muscidae), and house flies (Diptera: Muscidae). 开发多种蝇害防治靶点：紫色聚酯靶点能有效吸引采采蝇（双翅目：舌蝇科）、稳定蝇（双翅目：蝇科）和家蝇（双翅目：蝇科）。

Journal of economic entomology Pub Date : 2025-06-20 DOI: 10.1093/jee/toaf113

Michael N Okal, Sheillah J Akinyi, Roger D Santer

{"title":"Developing targets to control multiple pest fly species: violet polyester targets effectively attract tsetse (Diptera: Glossinidae), stable flies (Diptera: Muscidae), and house flies (Diptera: Muscidae).","authors":"Michael N Okal, Sheillah J Akinyi, Roger D Santer","doi":"10.1093/jee/toaf113","DOIUrl":"https://doi.org/10.1093/jee/toaf113","url":null,"abstract":"Tsetse (Glossina spp.), stable (Stomoxys spp.), and house flies (Musca domestica L.) impact humans and animals through bites and/or disease transmission. Tsetse are controlled using insecticide-coated fabric targets that are traditionally blue and/or black, but a violet polyester has now been engineered for greater attractiveness. Here, we investigate whether violet targets are also effective against stable and house flies. We sampled flies by electrocution at 1.0 (H) × 0.5 m (W) targets in Kenya, comparing catches at violet targets, and blue and black targets made from polyesters used in commercial traps and targets. Catches of female but not male Glossina pallidipes (Austen) were significantly greater at violet and black than at blue. Catches of Stomoxys calcitrans (L.), S. niger niger (Macquart), and Musca domestica were significantly greater at violet than at blue or black. Blue was significantly preferred over black for Stomoxys spp., and black over blue for M. domestica. Thus, violet targets were individually or jointly most effective against all species investigated. Catches of Stomoxys spp. and M. domestica were significantly greater at larger (1.0 × 0.5 m and 1.0 × 1.0 m) than at smaller (0.25 × 0.25 m and 0.5 × 0.5 m) violet targets. There were no significant effects of horizontal or vertical orientation for 1.0 × 0.5 m violet targets but catches of Stomoxys spp. tended to be greater with horizontal orientation, and catches of M. domestica greater with vertical orientation. Our results suggest that simple violet targets can be effective against multiple pest fly species.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An evaluation of insecticide and nitrogen fertility programs in dry bulb onions in the treasure valley of Eastern Oregon and Southwest Idaho in 2019 to 2021. 2019年至2021年俄勒冈州东部和爱达荷州西南部宝藏谷干洋葱杀虫剂和氮肥肥力计划的评估。

Journal of economic entomology Pub Date : 2025-06-20 DOI: 10.1093/jee/toaf101

Gina A Greenway, Silvia I Rondon, Anitha Chitturi, Willliam Buhrig, Stuart Reitz

{"title":"An evaluation of insecticide and nitrogen fertility programs in dry bulb onions in the treasure valley of Eastern Oregon and Southwest Idaho in 2019 to 2021.","authors":"Gina A Greenway, Silvia I Rondon, Anitha Chitturi, Willliam Buhrig, Stuart Reitz","doi":"10.1093/jee/toaf101","DOIUrl":"https://doi.org/10.1093/jee/toaf101","url":null,"abstract":"Field studies were conducted at Oregon State University, Malheur Experiment Station, Ontario, Oregon, from 2019 to 2021 for evaluation of optimal use of insecticides and in-season nitrogen fertilization to maximize profitability of dry bulb onion production. Insecticide programs included a control, a calendar-based weekly program, and an action threshold-based integrated pest management program. Nitrogen fertility was evaluated at two levels, standard and reduced. The standard nitrogen fertility program was based on recommended rates determined from soil and tissue tests. The reduced program delivered nitrogen at 50% of the recommended amount. Results pertaining to optimal use of insecticides were inconclusive. Each year of the study resulted in a different outcome relating to best practices for timing and delivering insecticide applications, indicating the need for more research. Standard nitrogen fertilization programs optimized profit in all 3 years of the study. The greater overall profitability of the standard fertilization program provides evidence to support using and following recommendations from soil and tissue tests for economically advantageous management of in-season nitrogen fertilization of dry bulb onions. The relative value of benefits from every dollar spent on nitrogen fertilizer during each year of the study was also evaluated using benefit-cost ratios. Even when the price of nitrogen was high relative to the value of the crop, investment in nitrogen still produced positive economic benefits.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

De novo transcriptome sequencing to identify the neuropeptides and neuropeptide receptors of the paulownia bagworm Clania variegata (Lepidoptera: Psychidae). 从头转录组测序鉴定泡桐白蛉神经肽和神经肽受体（鳞翅目：精神科）。

Journal of economic entomology Pub Date : 2025-06-20 DOI: 10.1093/jee/toaf141

Guobao Wang, Lei Nie

{"title":"De novo transcriptome sequencing to identify the neuropeptides and neuropeptide receptors of the paulownia bagworm Clania variegata (Lepidoptera: Psychidae).","authors":"Guobao Wang, Lei Nie","doi":"10.1093/jee/toaf141","DOIUrl":"https://doi.org/10.1093/jee/toaf141","url":null,"abstract":"In insects, neuropeptides are important signal molecules, mainly synthesized and released from neurosecretory cells within the central nervous system. Neuropeptides regulate multiple behavioral and physiological processes by acting on their corresponding receptors and are increasingly being considered as targets for new environmentally friendly insecticides. In this study, RNA-seq technology and bioinformatics were used to explore neuropeptides and their receptors by comparing the transcriptome profiles of the larval heads of male and female Clania variegata Snellen (Lepidoptera: Psychidae), a pest with significant agricultural and ecological impact. The clean transcriptome reads were assembled into 41,283 unigenes, with 2,461 differently expressed genes (DEGs) between the male and female groups. Fourteen neuropeptides were identified, of which allatotropin, allatostatin, and eclosion hormone can be used as potential pest control agents based on their pivotal roles in regulating growth and development. Several amidated neuropeptides were also identified, including neuropeptide IMFamide, myosuppressin-like isoform X2, neuropeptide F, short neuropeptide F, FMRFamide-related peptides, and CCHamide-2 isoform X2. Additionally, neuropeptides such as ion transport peptide-like, diuretic hormone class 2, diuretic hormone 41 isoform X4, and pro-corazonin are believed to regulate ion and water balance through modulation of the excretory system. Fifteen neuropeptide receptors were found, including those for allatostatin-A, neuropeptide CCHamide-2, neuropeptide F, FMRFamide, and neuropeptide SIFamide, several of which are implicated in behavioral regulation. However, no significant differences in neuropeptide or receptor expression were observed between sexes. These results enrich the neuropeptide gene database and offer insights into the neuropeptidergic signaling system in C. variegata.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144512893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0