Journal of Pest Science最新文献

{"title":"Phylogenetic and toxicogenomic profiling of CYPomes to elucidate convergent and divergent insecticide resistance profiles in three rice planthopper species","authors":"Kai Lin, Hongxin Wu, Zhongsheng Li, Zichun Zhong, Liuyan He, Yujing Guo, Jie Zhang, Xiaoxia Xu, Wenqing Zhang, Fengliang Jin, Rui Pang","doi":"10.1007/s10340-025-01913-2","DOIUrl":"https://doi.org/10.1007/s10340-025-01913-2","url":null,"abstract":"<p>Insecticide resistance in pest control poses a threat to agricultural production and human health. Numerous insect species express genes coding for detoxification enzymes that have broad substrate promiscuity thus conferring resistance to various insecticides. However, whether the homologs of these genes play similar roles in resistance phenotypes of closely related species remains largely unclear. Therefore, this study compares the resistance profiles of three major rice planthopper species (Delphacidae) (<i>Laodelphax striatellus</i>, <i>Nilaparvata lugens</i>, and <i>Sogatella furcifera</i>) based on the metabolic activity of their cytochrome P450s. Genome-wide analyses resulted in 68, 70, and 64 P450 genes in <i>L. striatellus</i>, <i>N. lugens</i>, and <i>S. furcifera</i>, respectively. Phylogenetic analyses among these genes found that most resistance-related genes in one species had homologs in other planthopper species. The most resistance-relevant orthogroup (<i>CYP6ER</i>s) showed higher evolutionary instability than most other groups. RNAi and in vitro metabolism assays revealed that <i>CYP6ER</i>s confers more divergent insecticide resistance profiles among planthopper species than the other two major resistance-related P450 subfamilies (<i>CYP6AY</i>s and <i>CYP4C61</i>s). Alphafold-based structural predictions and alignments suggested that P450 orthogroups with higher phylogenetic instability tended to have less structural similarities, resulting in more divergent metabolic profiles. This relationship was also in silico validated on Aphidae aphids and Lepidoptera noctuids. This study proposes combined phylogenetic and toxicogenomic analyses for understanding CYPome-based insecticide resistance convergency and divergency among closely related pests. These findings may improve the accuracy and rationality of chemical pest control.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"123 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143946023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Will rice-preferred fall armyworm, Spodoptera frugiperda be a new threat to rice production in China?","authors":"Zhichun Zhang, Hongtao Niu, Dongxiao Zhao, Shuai Sun, Hanyang Dai, Lu Xu, Huifang Guo","doi":"10.1007/s10340-025-01909-y","DOIUrl":"https://doi.org/10.1007/s10340-025-01909-y","url":null,"abstract":"<p>The fall armyworm, <i>Spodoptera frugiperda</i>, a significant pest, has spread to many countries in Africa and Asia in recent years, causing substantial losses in corn production. From 2019 to 2024, we monitored the host strain of <i>S. frugiperda</i> in various regions in Jiangsu Province, China. The result showed that only <i>COI</i>RS-<i>Tpi</i>RS and <i>COI</i>RS-<i>Tpi</i>CS strains were present in corn during 2019 and 2020. In 2021, <i>COI</i>RS-<i>Tpi</i>RS, <i>COI</i>RS-<i>Tpi</i>CS and <i>COI</i>CS-<i>Tpi</i>CS strains were detected in both corn and rice. By 2024, all the three strains were found exclusively in corn. Notably, the proportion of <i>COI</i>RS-<i>Tpi</i>RS strain increased from 2019 to 2021, but declined in 2024. Experimental data demonstrated that <i>COI</i>RS-<i>Tpi</i>RS had higher fitness on rice than on corn, and showed a preference for damaging and ovipositing on rice. However, the occurrence of <i>S. frugiperda</i> in rice paddies remains rare, suggesting that it is unlikely to become a significant threat to rice production in China in the coming years without change in rice planting pattern.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"96 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143940154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increased nitrogen deposition may benefit male poplars over female conspecifics through enhanced resistance to both specialist and generalist herbivores","authors":"Wanci He, Zhengbao Zhao, Guoqing Zhu, Shuya Yang, Abdul Manan, Fang He, Lianghua Chen, Tiantian Lin","doi":"10.1007/s10340-025-01899-x","DOIUrl":"https://doi.org/10.1007/s10340-025-01899-x","url":null,"abstract":"<p>The deposition of atmospheric nitrogen has globally increased and has interfered with plant growth and resistance to herbivores. Previous studies have shown that numerous dioecious plant species exhibit sex-specific responses in growth and tolerance to increased atmospheric nitrogen deposition. However, whether these changes lead to sexual differences in herbivore resistance and subsequent intersexual competition between male and female conspecifics remains unknown. Here, we used female and male siblings of <i>Populus deltoides</i> to investigate the effect of simulated nitrogen deposition on herbivore resistance and competitive ability of male and female plant conspecifics under controlled and field conditions. We showed that simulated nitrogen deposition significantly increased the growth of both plant sexes, with females outperforming males. The herbivore feeding bioassays demonstrated that simulated nitrogen deposition decreased the resistance of both plant sexes to generalist and specialist herbivores, with female plants exhibiting lower resistance than males. This could be attributed to decreased levels of leaf structural defense in females in response to simulated nitrogen deposition. A short-term competition test in the climate chamber revealed that simulated nitrogen deposition increased the competitive ability of females over males, whereas herbivore feeding reversed this advantage. A long-term competition experiment in the field further confirmed that male plants may benefit from increased atmospheric nitrogen deposition through enhanced herbivore resistance and intersexual competition compared to their female conspecifics. The findings provide potential implications for the selection of suitable sex of dioecious plants during forestation in natural habitats experiencing high levels of atmospheric nitrogen deposition.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"8 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nitenpyram resistance and IR56 feeding jointly drive the wing dimorphism in Nilaparvata lugens","authors":"Ruifang Chen, Huihui Zhang, Jianzheng Zou, Jiayi Chen, Zewen Liu","doi":"10.1007/s10340-025-01911-4","DOIUrl":"https://doi.org/10.1007/s10340-025-01911-4","url":null,"abstract":"<p><i>Nilaparvata lugens</i> Stål is a significant insect pest of rice throughout Asia, and the use of insect-resistant rice varieties has been proposed as a key strategy to control this pest, and reduce reliance on insecticides. However, little is known about the interplay between these two methods, particularly their combined influence on the behavior, development, and reproduction. In this study, we found that both nitenpyram resistance in BPH and resistance in the rice variety to BPH jointly regulated wing dimorphism. A large proportion of long-winged BPHs (78%) were observed in the nitenpyram-resistant strain (NitR) when feeding on IR56, a BPH-resistant rice variety. No similar result in SUS (susceptible) insects was observed on either IR56 or TN1, nor in NitR insects on TN1. These results suggest that nitenpyram resistance and feeding on IR56 together regulated BPH wing dimorphism. Through quantitative analysis of hormone and insulin pathway genes, we found that a decrease in juvenile hormone (JH) and/or an increase in ecdysone (20E) induced the long-winged morph, accompanied by a reduction in the expression of insulin receptor 2 (<i>InR2</i>). Alterations in hormone levels and silencing <i>InR2</i> could regulate wing morph differentiation. In males, JH III addition decreased long-wing proportion from 72 to 42%, while silencing <i>InR2</i> increased long-wing proportion from 27 to 71%. This study suggests a potential risk that the insect-resistant rice variety may promote the spread of resistant insects, creating a contradiction in the combined use of insecticides and insect-resistant varieties.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"50 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insecticide resistance in mosquitoes: molecular mechanisms, management, and alternatives","authors":"Hemanga Hazarika, Ravi Kumar Rajan, Padmanath Pegu, Punamjyoti Das","doi":"10.1007/s10340-025-01895-1","DOIUrl":"https://doi.org/10.1007/s10340-025-01895-1","url":null,"abstract":"<p>Insecticides remain a primary tool in mosquito-borne disease control; however, the resistance in mosquito populations poses a significant challenge to the efficacy. Resistance mechanisms, including target sites mutations and increase in metabolic detoxification, have emerged due to wide spread insecticide use. The growing resistance to pyrethroids used in long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) necessitates alternative control strategies. Furthermore, synthetic insecticides often negatively impact the environment and nontarget organisms, highlighting the necessity of exploring alternative pest management strategies. Biological control methods utilizing natural predators, pathogens, and parasites of mosquitoes have shown promise as viable alternatives to traditional insecticide approaches.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"11 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic effect of Bt (Cry1Ab + Vip3Aa) maize with emamectin benzoate and chlorantraniliprole against the fall armyworm, Spodoptera frugiperda","authors":"Wenhui Wang, Guodong Kang, Shuang Chen, Dandan Zhang, Shengyuan Zhao, Haitao Li, Xianming Yang, Yutao Xiao, Gemei Liang, Kongming Wu","doi":"10.1007/s10340-025-01897-z","DOIUrl":"https://doi.org/10.1007/s10340-025-01897-z","url":null,"abstract":"<p>The invasion of the fall armyworm (FAW), <i>Spodoptera frugiperda</i> (J. E. Smith), has posed a serious threat to maize production in Africa and Asia. Chemical insecticides and Bt maize are the main means for FAW control, but the interaction between these two measures is also unclear. In this study, the susceptibility of the field population (Ezhou) fed on Bt maize insecticidal protein and the Vip3Aa-resistant population DH-R (206-fold) to emamectin benzoate (EB) and chlorantraniliprole (CAP) was determined by the topical application method. The results showed that the susceptibility of both populations to the two insecticides increased significantly. The mechanism is attributed to the inhibition of the activities of enzymes detoxification enzymes, including carboxylesterase (CarE), glutathione S-transferase (GSTs), and multifunctional oxidase (MFO). The corrected control effects of Bt (Cry1Ab + Vip3Aa) maize combined with EB or CAP against larvae were measured by a spraying method in the laboratory and field. The results showed that the combined use of Bt (Cry1Ab + Vip3Aa) maize and EB increased the corrected control effect by 22.70%-22.86% in the laboratory and 16.74% in the field. Similarly, the combined use of Bt (Cry1Ab + Vip3Aa) maize and CAP increased the corrected control effect by 54.92%-61.59% in the laboratory and 19.62% in the field. It is concluded that the Bt (Cry1Ab + Vip3Aa) maize and chemical insecticides (EB and CAP) have synergistic effects against FAW, providing a theoretical basis for integrating Bt maize with chemical insecticides to manage the FAW populations.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"110 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective lure for Bactrocera dorsalis based on shared palpal and antennal responses across three economically important tephritid species","authors":"Tibebe Dejene Biasazin, Raphael Njurai Miano, Xavier Cheseto, Shepard Ndlela, Samira A. Mohamed, Teun Dekker","doi":"10.1007/s10340-025-01898-y","DOIUrl":"https://doi.org/10.1007/s10340-025-01898-y","url":null,"abstract":"<p>The oriental fruit fly <i>Bactrocera dorsalis</i> is a highly destructive and invasive pest that threatens global horticulture, causing economic losses due to fruit damage and quarantine regulations. While attract-and-kill baits are widely used to suppress fly populations, these baits also impact many non-target species. To achieve ecological sustainability, our study aimed to develop a method that selectively targets female fruit flies. Using gas chromatography coupled to electro-antennal or palpal detection (GC-EAD/GC-EPD), we identified compounds that elicited responses in the maxillary palp and antenna of three different fruit flies including <i>B. dorsalis</i>, <i>Ceratitis capitata,</i> and <i>Zeugodacus cucurbitae</i>. As previous studies indicated the significance of compounds whose detection was shared among fruit fly species, we composed blends of such “shared compounds”. To test the hypothesis that compounds active on the palps and antennae are complementary and synergize attraction, we thus formulated three blends, a palpal, an antennal and a combined blend. Compounds were formulated in a wax emulsion for slow release and tested on <i>B. dorsalis</i> fruit flies in six choice and large room laboratory assays, as well as field trials. A blend of both antenna and maxillary palp-active compounds attracted more <i>B. dorsalis</i> than blends based on either antennae or palps alone, and exhibited a female-bias in captures. Furthermore, the blend was highly selective, capturing very few non-target organisms compared to torula yeast, a lure considered to be selective. Such lures are important in advancing targeted pest control strategies, ultimately contributing to more effective management of the devastating <i>B. dorsalis</i> population, and safeguarding global horticulture productivity.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"31 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143910290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Orius similis prefers to prey on the young larvae of Encarsia formosa parasitizing on Bemisia tabaci","authors":"Bo Zhang, Jiao Kong, Jin-Long Zhang, Guo-Ting Yuan, Pei-Wei Xiong, Guo-Hua Chen, Xiao-Ming Zhang","doi":"10.1007/s10340-025-01902-5","DOIUrl":"https://doi.org/10.1007/s10340-025-01902-5","url":null,"abstract":"<p><i>Orius similis</i> and <i>Encarsia formosa</i> are important natural enemies of <i>Bemisia tabaci</i>. However, there is limited understanding regarding the impact of <i>O. similis</i> on the control of <i>B. tabaci</i> by <i>E. formosa</i> when they are used in combination. Temperature changes will affect the food web, and Intraguild predation (IGP) is a fundamental component that constitutes a complex food web. Therefore, studying the effect of temperature on IGP is of great significance for understanding the mechanism of species interaction and improving the biocontrol ability of natural enemies. Our study investigated the interference of female adults of <i>O. similis</i> on unparasitized and parasitized <i>B. tabaci</i> nymphs (including 1-, 4-, 7-, and 10-day-old parasitoid immature nymphs) at different temperatures (19, 22, 25, 28, and 31 °C). The results showed that only the parasitism rate of <i>E. formosa</i> was lower than that of the treatment without <i>O. similis</i> on 1, 4, 7 and 10 days after being parasitized by <i>E. formosa</i>, indicating that <i>O. similis</i> preyed on <i>E. formosa</i>. In both the no-choice and choice experiments, <i>O. similis</i> showed a preference for feeding on <i>B. tabaci</i> nymphs that had been parasitized 1 and 4 days earlier, across various temperature conditions. When both unparasitized <i>B. tabaci</i> nymphs and parasitized 10-day-old <i>B. tabaci</i> nymphs were present, <i>O. similis</i> preferred to prey on unparasitized prey. Our results provide evidence that IGP interactions may be greatly affected by future increases in temperature. When the temperature increased from 19 to 28 °C, the IGP of <i>O. similis</i> was promoted with the increase in temperature. When the temperature exceeded 28 °C, IGP was inhibited. Therefore, in the combined application of these two natural enemies, the <i>O. similis</i> can be released again in the period or time period when the temperature is stable at 22–25 °C after 10 days of release of <i>E. formosa</i> to reduce the IGP intensity, so as to achieve better control effect and accelerate the establishment of an efficient biocontrol system of natural enemies of <i>B. tabaci</i>.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"6 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to: Modelling time‑temperature‑dependent mortality of pest flies in cold storage to support the management of trade‑related biosecurity risks","authors":"Himali U. Ratnayake, Ross Darnell, Brent Henderson, Rieks D. van Klinken","doi":"10.1007/s10340-025-01894-2","DOIUrl":"https://doi.org/10.1007/s10340-025-01894-2","url":null,"abstract":"","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"18 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How adjacent nonhost plants affect the ability of an insect herbivore to find a host","authors":"Xinliang Shao, Mingsheng Yang, Hongfei Zhang, Zhengbing Wang, Qin Zhang, Kedong Xu","doi":"10.1007/s10340-025-01901-6","DOIUrl":"https://doi.org/10.1007/s10340-025-01901-6","url":null,"abstract":"<p>Studies using nonhost plant odors to deter insect pests and protect host plants have reported mixed results. Moreover, how adjacent nonhost plants affect the ability of insect herbivores to locate hosts is unclear. We examined the effects of location of two nonhost rosemary plants (<i>Rosmarinus officinalis</i>) relative to a host peanut plant (<i>Arachis hypogaea</i>) under fixed wind direction on the host-finding ability (number of eggs laid) of <i>Spodoptera exigua.</i> We then correlated the effects with the degree of odor mixing between the host and nonhost plants. Subsequently, we investigated whether row orientation affects the ability of insects to find hosts. The degree of odor mixing between host and nonhost plants was greater when the rosemary plants were upwind and downwind than when they were crosswind from the peanut plants. Closer plant spacing resulted in more odor mixing. The number of eggs laid on peanut plants was reduced when the degree of odor mixing was high. When rosemary plants were replaced with odorless plastic plants, the odorless plants upwind and downwind from the peanut plant were also associated with fewer eggs laid. In the field, significantly fewer eggs were laid on peanut plants when the row orientation was perpendicular to the prevailing wind direction. Nonhost rosemary plant location relative to the host plant significantly affected the host-finding ability of <i>S. exigua</i> by influencing the degree of odor mixing between host and nonhost plants and by physical barrier effects of nonhost plants. Our results may provide insights for future pest management strategies.</p>","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"17 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}