Journal of economic entomology最新文献

Thirty years after the commercial launching of the first bait product for subterranean termites: introduction. 第一个用于地下白蚁的诱饵产品商业投放三十年后：引进。

Journal of economic entomology Pub Date : 2025-05-30 DOI: 10.1093/jee/toaf100

Nan-Yao Su, Thomas Chouvenc, Chow-Yang Lee

引用次数: 0

Effect of trap color, pheromone and kairomone release rates, and α-pinene and limonene enantiomers on the capture of Monochamus saltuarius Gebler (Coleoptera: Cerambycidae). 诱捕器颜色、信息素和凯罗酮释放率、α-蒎烯和柠檬烯对映体对灰仓鼠捕获的影响

Journal of economic entomology Pub Date : 2025-05-28 DOI: 10.1093/jee/toaf115

Min-Jung Huh, Il Nam, Ji-Hong Park, Jae-Woo Lee, Min-Woo Lee, Il-Kwon Park

{"title":"Effect of trap color, pheromone and kairomone release rates, and α-pinene and limonene enantiomers on the capture of Monochamus saltuarius Gebler (Coleoptera: Cerambycidae).","authors":"Min-Jung Huh, Il Nam, Ji-Hong Park, Jae-Woo Lee, Min-Woo Lee, Il-Kwon Park","doi":"10.1093/jee/toaf115","DOIUrl":"https://doi.org/10.1093/jee/toaf115","url":null,"abstract":"Monochamus saltuarius (Gebler) (Coleoptera: Cerambycidae) is a significant forest pest that spreads pine wood nematodes [Bursaphelenchus xylophilus (Steiner & Bührer) Nickle) (Aphelehncida: Parasitaphelenchidae)] across northern Eurasia, including South Korea. The Korea Forest Service recommends the use of pheromone traps to monitor the spread of this insect vector. However, to improve the accuracy of occurrence monitoring and enhance control through mass trapping, it is necessary to increase the capture efficiency of pheromone traps. In this study, we evaluated various pheromone trap conditions to improve the attraction efficiency of M. saltuarius by modifying trap color, enantiomers, and the release rates of pheromone and kairomones. Among the 6 tested colors (black, red, green, blue, yellow, and white), M. saltuarius exhibited the most potent attraction to black traps. In enantiomer preference tests, M. saltuarius showed no significant difference in response to the enantiomers of α-pinene and limonene. To evaluate the effects of pheromone and kairomone release rates on the capture of M. saltuarius, traps were baited with varying release rates of each compound-monochamol (5.7 to 28.5 mg/day), ethanol (15.9 to 79.5 mg/day), α-pinene (18.1 to 90.5 mg/day), and ipsenol (5.9 to 29.5 mg/day)-and the number of captures was compared. The optimal release rates for monochamol, ethanol, α-pinene, and ipsenol were 22.8, 15.9, 18.1, and 23.6 mg/day, respectively. Traps baited with the optimal release rates of each compound captured M. saltuarius 49.7% more effectively than those baited with the minimum release rates.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164302","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

Transinfections of the endosymbiont Rickettsiella viridis in different Myzus persicae (Hemiptera: Aphididae) clones show consistent deleterious effects and stable transmission. 内共生体立克次体病毒在不同桃蚜（半翅目：蚜科）无性系间的转感染表现出一致的有害作用和稳定的传播。

Journal of economic entomology Pub Date : 2025-05-25 DOI: 10.1093/jee/toaf114

Xinyue Gu, Mel Berran, Ashritha Prithiv Sivaji Dorai, Qiong Yang, Monica Stelmach, Perran A Ross, Alex Gill, Eloïse Ansermin, Ella Yeatman, Paul A Umina, Ary A Hoffmann

{"title":"Transinfections of the endosymbiont Rickettsiella viridis in different Myzus persicae (Hemiptera: Aphididae) clones show consistent deleterious effects and stable transmission.","authors":"Xinyue Gu, Mel Berran, Ashritha Prithiv Sivaji Dorai, Qiong Yang, Monica Stelmach, Perran A Ross, Alex Gill, Eloïse Ansermin, Ella Yeatman, Paul A Umina, Ary A Hoffmann","doi":"10.1093/jee/toaf114","DOIUrl":"https://doi.org/10.1093/jee/toaf114","url":null,"abstract":"Endosymbionts are widespread in insects, including aphids, and can have multiple effects on insect host fitness, suggesting potential applications for endosymbiont-related pest control. A transinfection of the endosymbiont Rickettsiella viridis into a line of the novel host Myzus persicae has previously shown large deleterious effects on aphid fitness and rapid spread in caged aphid populations under a cool environment. Because host clones can significantly influence endosymbiont effects and fitness-related traits more generally, it is important to test endosymbiont effects across a range of genotypic backgrounds. Here, we developed four Rickettsiella transinfected lines in different M. persicae clones via hemolymph microinjection, including clones with relatively high pesticide resistance. All four lines exhibited consistent fitness costs, reflected in reductions in both fecundity and longevity and reduced heat tolerance, although the magnitude of these effects varied among clones. The lines also resulted in stable and similar shifts in body color, with infected aphids being darker in color, although clonal effects were again observed. Vertical transmission was stable in all clones, and Rickettsiella infection was also shown to be transmitted horizontally between aphid pairs within Petri dishes in each clone. These results demonstrate consistent transmission and deleterious fitness effects of Rickettsiella transinfections, while also highlighting genetic background effects.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145255","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

Impacts of combining aphid and headworm management on natural enemy conservation and grain sorghum production. 蚜虫与头虫并作管理对天敌保护和高粱生产的影响。

Journal of economic entomology Pub Date : 2025-05-24 DOI: 10.1093/jee/toaf108

Blake H Elkins, Nathan S Little, K Clint Allen, Maribel Portilla

{"title":"Impacts of combining aphid and headworm management on natural enemy conservation and grain sorghum production.","authors":"Blake H Elkins, Nathan S Little, K Clint Allen, Maribel Portilla","doi":"10.1093/jee/toaf108","DOIUrl":"https://doi.org/10.1093/jee/toaf108","url":null,"abstract":"Grain sorghum (Sorghum bicolor L.) of the southern United States is attacked by numerous insect pests. These include lepidopteran larvae which infest sorghum heads (headworms) and have historically been managed by insecticide applications. The aphid pest Melanaphis sorghi (Theobald) has more recently emerged as an economic pest of sorghum leaves. Management for this aphid has included host plant resistance, insecticide applications, and suppression from insect natural enemies. It is currently unclear if the management practices for M. sorghi or headworms interferes with suppression of the other pest or natural enemies in sorghum. A 2-yr field study was conducted in grain sorghum to assess the impacts of an aphid resistant sorghum, insecticide applications for M. sorghi, and insecticide applications for headworms on pests, natural enemies, and sorghum cultivation in Mississippi. The results indicated that all management strategies could significantly reduce pest densities and conserve suppression from resident natural enemies. No significant benefits were identified from the combined management of both pests compared to managing each individually. The yield and economic returns from the insect control costs indicated that while pest densities were significantly reduced, other factors impacted sorghum production under the environmental conditions and pest pressures experienced during this study. This research demonstrated the feasibility of integrating multiple management tactics for aphids and headworms. This has the potential to enhance the efficiency and efficacy of sorghum integrated pest management, although it may not always be necessary.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136533","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

Integration of Orius nagaii (Yasunaga) (Hemiptera: Anthocoridae) and eco-friendly insecticide to improve Dendrothrips minowai (Priesner) (Thysanoptera: Thripidae) control. 与生态友好型杀虫剂联合应用提高对米诺石蓟马的防治效果。

Journal of economic entomology Pub Date : 2025-05-24 DOI: 10.1093/jee/toaf088

Lan Wang, Chang-Rong Zhang, Fei Qiao, Fei-Xue Ban, Shao-Lan Liu, Ting-Ting Mao, Xing-Yuan Zhang, Lian-Sheng Zang, Su Wang, Bao-An Song, Jun-Rui Zhi

{"title":"Integration of Orius nagaii (Yasunaga) (Hemiptera: Anthocoridae) and eco-friendly insecticide to improve Dendrothrips minowai (Priesner) (Thysanoptera: Thripidae) control.","authors":"Lan Wang, Chang-Rong Zhang, Fei Qiao, Fei-Xue Ban, Shao-Lan Liu, Ting-Ting Mao, Xing-Yuan Zhang, Lian-Sheng Zang, Su Wang, Bao-An Song, Jun-Rui Zhi","doi":"10.1093/jee/toaf088","DOIUrl":"https://doi.org/10.1093/jee/toaf088","url":null,"abstract":"Combined use of eco-friendly insecticides with natural enemies is increasingly being used in pest management. In this study, the combination of eco-friendly insecticides and Orius nagaii (Yasunaga) (Hemiptera: Anthocoridae), an important predator of the thrips, in controlling Dendrothrips minowai (Priesner) (Thysanoptera: Thripidae), a major tea pest, was evaluated in both laboratories and tea plantations. Five commercial insecticides were first screened the toxicity to D. minowai, and their safety to O. nagaii. The results showed mineral oil and Metarhizium anisopliae CQMa421 were toxic against D. minowai, while diafenthiuron, mineral oil and M. anisopliae CQMa421 were relatively safe for O. nagaii. Sublethal bioassay on eggs, nymphs, and adults of O. nagaii showed that mineral oil exposure minimized hatching rate among the 5 insecticides. The adverse effects of diafenthiuron and M. anisopliae CQMa421 on the development and reproduction of O. nagaii were inferior to those of spinetoram and indoxacarb. Both spinetoram and indoxacarb displayed significant acute and sublethal effects on O. nagaii. Field trials unveiled that the combined use of O. nagaii and diafenthiuron was an effective and lasting pest control strategy against D. minowai. The results contribute to an improved D. minowai management coordinated eco-friendly insecticide with natural enemy insects.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136629","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

Effect of sublethal doses of chlorantraniliprole on the activity of detoxification and protective enzymes in Galleria Mellonella (Lepidoptera: Pyralidae). 亚致死剂量氯虫腈对绿螟蛾解毒和保护酶活性的影响。

Journal of economic entomology Pub Date : 2025-05-24 DOI: 10.1093/jee/toaf049

Hui Wan, Guo Yong Li, Jian Kun Long, Guy Smagghe, Yang Yang Liu

{"title":"Effect of sublethal doses of chlorantraniliprole on the activity of detoxification and protective enzymes in Galleria Mellonella (Lepidoptera: Pyralidae).","authors":"Hui Wan, Guo Yong Li, Jian Kun Long, Guy Smagghe, Yang Yang Liu","doi":"10.1093/jee/toaf049","DOIUrl":"https://doi.org/10.1093/jee/toaf049","url":null,"abstract":"Galleria mellonella Linnaeus (Lepidoptera: Pyralidae) is a pest that feeds on the spleen of honey bee nests worldwide. In this study, the toxicity of chlorantraniliprole (CAP) to G. mellonella was determined by ingestion toxicity and contact toxicity methods. We compared the effects of sublethal doses of CAP on the activity of major detoxification and protective enzymes as well as gene expression of related enzymes under the 2 treatment methods. The median lethal concentrations of CAP administered using ingestion toxicity and contact toxicity methods were 217.666 and 50.453 mg L-1, respectively. Compared with the control group, both methods increased the activities of carboxylesterase (CarE) and cytochrome P450 (CYP450), decreased the activities of glutathione S-transferase (GST) and peroxidase (POD), and had no effect on catalase activity. Superoxide dismutase activity decreased under ingestion toxicity but remained unchanged under contact toxicity. Significant changes were observed in the gene expression levels of detoxification and protective enzymes under both treatment methods; the expression levels of GmCarE4a, GmCarE2a, GmCarE1f, and GmPOD1a were significantly upregulated, whereas those of GmGST2a and GmGST2b were significantly downregulated. CAP exhibited both ingestion toxicity and contact toxicity against G. mellonella, with better contact toxicity effects. Galleria mellonella responded to CAP stress by adjusting enzyme activities (increasing CarE and CYP450 activities and decreasing GST and POD activities) and related gene expression levels (upregulating the relative expression levels of GmCarE4a, GmCarE2a, GmCarE1f, and GmPOD1a and downregulating those of GmGST2a and GmGST2b). The findings from the 2 distinct poisoning methods offer a scientific foundation for optimizing the application of CAP in the effective control of G. mellonella, while also providing valuable insights into the development of CAP resistance.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136589","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

Legume host range and soybean host plant resistance for soybean tentiform leafminer, Macrosaccus morrisella (Lepidoptera: Gracillariidae). 豆科寄主范围及大豆寄主植物对大豆蔓状叶螨的抗性。

Journal of economic entomology Pub Date : 2025-05-19 DOI: 10.1093/jee/toaf098

Arthur V Ribeiro, Fábio M Führ, James P Menger, Joshua S Havill, Robert L Koch

{"title":"Legume host range and soybean host plant resistance for soybean tentiform leafminer, Macrosaccus morrisella (Lepidoptera: Gracillariidae).","authors":"Arthur V Ribeiro, Fábio M Führ, James P Menger, Joshua S Havill, Robert L Koch","doi":"10.1093/jee/toaf098","DOIUrl":"https://doi.org/10.1093/jee/toaf098","url":null,"abstract":"The soybean tentiform leafminer, Macrosaccus morrisella (Lepidoptera: Gracillariidae), was known to feed on only two legumes native to North America, and it has recently expanded its host range to soybean, Glycine max (Fabales: Fabaceae). However, the threat to other legume crops and potential for host plant resistance for M. morrisella management in G. max is unknown. Thus, M. morrisella host range among different species of legume crops and genotypes of G. max were evaluated through complementary choice and no-choice experiments. Macrosaccus morrisella oviposited on its native host American hogpeanut (Amphicarpaea bracteata (Fabales: Fabaceae)) and G. max (both grain and vegetable types), but not on Phaseolus vulgaris, Vigna unguiculata, Cicer arietinum, Vicia faba, Pisum sativum, and Lens culinaris (Fabales: Fabaceae). Low oviposition was observed on Vigna radiata and Phaseolus lunatus (Fabales: Fabaceae) in a choice test, but no larvae survived on either legume. When G. max genotypes were compared, lower but detectable oviposition (50 to 100 eggs per plant) was observed on PI229358 and PI227687 in choice and no-choice tests, and lower survival rates (20 to 40%) on PI229358 and M15-105140 in a no-choice test. These results indicate that M. morrisella host range appears to be restricted to the previously known native hosts and G. max, but continued monitoring for adaptation to other legumes and further studies testing multiple populations of M. morrisella are necessary. Furthermore, sources of G. max with lower susceptibility against M. morrisella were identified and could be utilized in G. max breeding programs for the development of host plant resistance for M. morrisella management.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144096149","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

A description of temperature-dependent development to infer Hyphantria cunea (Lepidoptera: Erebidae) and its application to predict the species voltinism in China. 中国棘球绦虫（鳞翅目：棘球绦虫科）的温度依赖发育描述及其在物种进化预测中的应用。

Journal of economic entomology Pub Date : 2025-05-19 DOI: 10.1093/jee/toaf099

WenXuan Xu, Zhuang Zuo, XuDong Zhao, HongTing Zhao, Fei Teng, DeJun Hao

{"title":"A description of temperature-dependent development to infer Hyphantria cunea (Lepidoptera: Erebidae) and its application to predict the species voltinism in China.","authors":"WenXuan Xu, Zhuang Zuo, XuDong Zhao, HongTing Zhao, Fei Teng, DeJun Hao","doi":"10.1093/jee/toaf099","DOIUrl":"https://doi.org/10.1093/jee/toaf099","url":null,"abstract":"The fall webworm, Hyphantria cunea (Drury) (Lepidoptera, Erebidae) is a significant forest pest, known for its strong reproductive capacity and wide host range. Temperature plays a crucial role in its growth and development, influencing population dynamics. Global warming may alter its distribution, development timing, and control measures. We selected six temperatures (16 °C, 19 °C, 22 °C, 25 °C, 28 °C, and 31 °C) for rearing H. cunea in artificial climate chambers and recorded the duration of each developmental stage. Seven developmental rate models were used to fit the developmental progression of H. cunea. The results showed that temperature significantly affected the development time of H. cunea, as increasing temperature accelerated development, especially in the range of 16 °C to 28 °C. At 31 °C, the effect of temperature on the rate of development began to lessen. The fitting results based on the Lactin model showed that the lower threshold temperature (TL) of the development of H. cunea was 10 °C; the upper threshold temperature (TH) was 33.01 °C, and the optimal temperature (Topt) was 31.87 °C. The most effective accumulated temperature for completing the life cycle was 791.2 degree days. The calculation of annual accumulated degree days over the past five years showed that H. cunea in China normally has three generations per year, with a few colder regions supporting two generations annually. In exceptionally hot years, there may be a completely fourth generation.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144096610","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

Impacts of Nantucket pine tip moth, Rhyacionia frustrana (Lepidoptera: Tortricidae) management on rotation-length economic returns of loblolly pine. 楠塔基特松尖蛾管理对火炬松轮长经济效益的影响。

Journal of economic entomology Pub Date : 2025-05-19 DOI: 10.1093/jee/toaf072

David R Coyle, Rafael De La Torre, Jess A Hartshorn, Samantha M Kennett, R Scott Cameron, C Wayne Berisford

{"title":"Impacts of Nantucket pine tip moth, Rhyacionia frustrana (Lepidoptera: Tortricidae) management on rotation-length economic returns of loblolly pine.","authors":"David R Coyle, Rafael De La Torre, Jess A Hartshorn, Samantha M Kennett, R Scott Cameron, C Wayne Berisford","doi":"10.1093/jee/toaf072","DOIUrl":"https://doi.org/10.1093/jee/toaf072","url":null,"abstract":"The Nantucket pine tip moth, Rhyacionia frustrana, is primarily a pest of young pines (Pinus L.) in the southern United States and parts of Central America. Feeding damage can result in terminal mortality, stunted tree growth, and occasional tree death. Further, long-term impacts of Nantucket pine tip moth feeding can lead to persistent growth reductions throughout the entire harvest rotation; however, there is a dearth of new research on Nantucket pine tip moth-especially economic impacts-over the last several decades, and information is lacking regarding the economic impact of Nantucket pine tip moth damage over an entire stand rotation. To address this issue, we evaluated the economic impact of Nantucket pine tip moth feeding in a loblolly pine stand in North Carolina over a 23-yr harvest rotation. Our economic analysis suggested that under the right circumstances, Nantucket pine tip moth control could be economically worthwhile-but this would depend on several extrinsic factors, including site index, tree growth rate, market value of the products, and the cost of management activities. The need to manage Nantucket pine tip moth currently varies both spatially and temporally, and our data shows that this stochasticity will likely persist throughout the harvest rotation, and that Nantucket pine tip moth treatment should be carefully considered on a site-by-site basis.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144095902","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

Lethal and sublethal effects of cotton expressing single and pyramided proteins of Bacillus thuringiensis (Bt) on Helicoverpa armigera (Lepidoptera: Noctuidae), Spodoptera litura (Lepidoptera: Noctuidae), and Spodoptera frugiperda (Lepidoptera: Noctuidae). 表达苏云金芽孢杆菌单蛋白和锥体蛋白的棉花对棉铃虫、斜纹夜蛾和果纹夜蛾的致死和亚致死效应

Journal of economic entomology Pub Date : 2025-05-19 DOI: 10.1093/jee/toaf089

Sharna Holman, Paul Grundy, Helen Spafford, Michael Furlong

{"title":"Lethal and sublethal effects of cotton expressing single and pyramided proteins of Bacillus thuringiensis (Bt) on Helicoverpa armigera (Lepidoptera: Noctuidae), Spodoptera litura (Lepidoptera: Noctuidae), and Spodoptera frugiperda (Lepidoptera: Noctuidae).","authors":"Sharna Holman, Paul Grundy, Helen Spafford, Michael Furlong","doi":"10.1093/jee/toaf089","DOIUrl":"https://doi.org/10.1093/jee/toaf089","url":null,"abstract":"The susceptibility to proteins from Bacillus thuringiensis (Bt) can vary among lepidopteran pest species. While Bollgard 3 cotton (BG3) effectively controls the primary pest Helicoverpa armigera (Hübner) in Australia, its effectiveness against other pests, such as Spodoptera litura (Fabricius) and Spodoptera frugiperda (J. E. Smith), is unknown. This laboratory study assessed the survival and development of H. armigera, S. litura, and S. frugiperda larvae when fed foliage from a non-transgenic cotton variety (CC) and 3 transgenic cotton varieties: Bollgard (BG1) expressing Cry1Ac, Bollgard II (BG2) expressing Cry1Ac and Cry2Ab, and Bollgard 3 (BG3) expressing Cry1Ac, Cry2Ab, and Vip3A. Pyramided Bt cotton had greater negative effects on survival and development of all species compared with CC or BG1. The proportion of H. armigera that eclosed as adults was very low when larvae fed on BG2 or BG3 compared with BG1. Eclosion rates of S. litura and S. frugiperda on BG3 were much lower compared with BG2 and BG1. This study demonstrates that BG3 has greater efficacy against a wider lepidopteran pest complex compared with previous Bt cotton products. Despite efficacy in the laboratory, S. litura larvae are reported to be surviving in BG3 fields, suggesting other factors are influencing field efficacy. As BG3 production expands across tropical northern Australia, preserving the susceptibility of S. litura and S. frugiperda to BG3 proteins is crucial. This study identifies the need for further research on field survival and resistance management strategies for secondary pest species.","PeriodicalId":94077,"journal":{"name":"Journal of economic entomology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144096152","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