Juan Li, Mao Li, Xiaoman Wei, Budian Lv, Jinchen Zhang, Guohua Chen, Zhongshi Zhou, Jinlong Zhang, Xiaoming Zhang
{"title":"Age-Stage, Two-Sex Life Table, Oviposition Rhythms of Zeugodacus cucurbitae and Zeugodacus tau","authors":"Juan Li, Mao Li, Xiaoman Wei, Budian Lv, Jinchen Zhang, Guohua Chen, Zhongshi Zhou, Jinlong Zhang, Xiaoming Zhang","doi":"10.1111/jen.70033","DOIUrl":"10.1111/jen.70033","url":null,"abstract":"<div>\u0000 \u0000 <p><i>Zeugodacus tau</i> has attracted global attention in recent years due to its population expansion and invasion of new territories, as this species shares a similar host range with <i>Zeugodacus cucurbitae</i>. The objective of the present study was to evaluate the basic biological differences between these two insects. Age-stage and two-sex life tables of <i>Z. cucurbitae</i> and <i>Z. tau</i> were established for individuals reared on zucchini fruit at a constant temperature of 25°C. Moreover, the oviposition period of the two insects was completely observed. The results demonstrated that the intrinsic rate of increase (<i>r</i>) and finite rate of increase (<i>λ</i>) of <i>Z. cucurbitae</i> were greater than those of <i>Z. tau</i>. Additionally, the duration of each developmental stage and the average lifespan of <i>Z. cucurbitae</i> were significantly shorter than those of <i>Z. tau</i>, while its survival rate was significantly greater. Notably, male individuals of both species presented longer lifespans than their female counterparts. The reproductive values of <i>Z. cucurbitae</i> and <i>Z. tau</i> initially increased but subsequently decreased with age, peaking at 46 d and 65 d, respectively. The population size of <i>Z. cucurbitae</i> was significantly larger than that of <i>Z. tau</i> on day 90. Oviposition pattern analysis revealed that the oviposition period of <i>Z. cucurbitae</i> exhibited a unimodal distribution, whereas the oviposition period of <i>Z. tau</i> displayed a bimodal distribution. Further investigation revealed that during the first 30 days, the oviposition rate was significantly negatively correlated with female fly longevity, and <i>Z. cucurbitae</i> presented a significantly greater oviposition rate than <i>Z. tau</i> during this period. In summary, the findings of this study suggest that under identical environmental conditions, <i>Z. cucurbitae</i> has strong population growth potential, providing critical foundational data for the integrated management of these two pest species.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"265-276"},"PeriodicalIF":2.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136197","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}
Antonio González-Fernández, Pilar Rallo, António M. Peres, Nuno Rodrigues, Susana Casal, José Alberto Pereira, Ana Morales-Sillero
{"title":"Deciphering How Olive Volatiles and Fatty Acids Shape Bactrocera oleae (Rosii) Oviposition Preference Using Multivariate Regression Models","authors":"Antonio González-Fernández, Pilar Rallo, António M. Peres, Nuno Rodrigues, Susana Casal, José Alberto Pereira, Ana Morales-Sillero","doi":"10.1111/jen.70027","DOIUrl":"10.1111/jen.70027","url":null,"abstract":"<p>The olive fly (<i>Bactrocera oleae</i> (Rossi)), the major pest of olives, primarily recognises visual, olfactory, acoustic, gustatory and tactile signals that regulate its behavioural activity, courtship and reproductive success, as well as the search for ideal conditions for its offspring. Recent studies highlight the importance of chemical compounds present in olive fruits, particularly volatile organic compounds (VOCs), in these processes. This paper aims to further explore the relationships between <i>B. oleae</i> and specific chemical traits in fresh sound fruits that might trigger and enhance infestations, namely VOCs, their precursors (fatty acids) and lipidic antioxidants (tocopherols). The study has been performed within the framework of a table olive cross-breeding program in order to develop predictive models to identify genotypes less susceptible to olive fly infestation. Significant differences in chemical traits were observed among the genotypes studied, highlighting their role in oviposition preference of the olive fly. ‘Hojiblanca’ and ‘Kalamon’, known for their lower susceptibility, stood out for their high concentrations of D-limonene among the 33 identified VOCs and low saturated fatty acid content. Specific VOCs like α-pinene, copaene, nonanal and o-xylene, along with some minor fatty acids, were key predictors for developing multivariate models that estimate susceptibility to olive fly oviposition.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"254-264"},"PeriodicalIF":2.0,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.70027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136108","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}
Loris Al Bitar, Claus Zebitz, Stanislav Gorb, Dagmar Voigt
{"title":"Egg Adhesion of the Codling Moth Cydia pomonella L. (Lepidoptera, Tortricidae) to Synthetic Substrates","authors":"Loris Al Bitar, Claus Zebitz, Stanislav Gorb, Dagmar Voigt","doi":"10.1111/jen.70030","DOIUrl":"10.1111/jen.70030","url":null,"abstract":"<p>Previous studies on <i>Cydia pomonella</i> eggs have demonstrated reliable egg adhesion to the leaves and fruits of various apple cultivars. In contrast to biological substrates, this study is focused on standardised synthetic substrates to measure egg pull-off forces and determine adhesive strength, allowing for an unbiased comparison with other, previously studied, organisms. Analyses using various microscopy techniques and white light interferometry at the interface between egg adhesive secretion and substrate helped to interpret the data. The results showed that codling moth eggs adhered more strongly to smooth, high-surface-energy substrates (such as hydrophilic glass) compared to low-surface-energy ones, achieving adhesive strengths of 138 kPa on hydrophilic surfaces and 22 kPa on hydrophobic ones. Correspondingly, the surface wetting by the adhesive egg secretion and egg contact area were both larger on hydrophilic than on hydrophobic glass, measuring 1.8 and 1.4 mm<sup>2</sup>, respectively. The adhesive layer was found to be remarkably thin, measuring only 10 nm on hydrophilic glass and 153 nm on hydrophobic glass. Egg adhesion to hydrophobic glass aligns with the conditions found on the waxy surfaces of apple host plants, although mechanical interlocking can be ignored on the smooth glass. The pull-off forces required to detach eggs from substrates corresponded to 313,053 times the egg weight on hydrophobic glass and 2,442,220 times the egg weight on hydrophilic glass. We suggest that in an ecological context, the optimal egg adhesion, which can resist environmental impacts, is more crucial than the maximum bond strength. The consistency, surface wetting, speed of the hardening process, and adhesive potential of the egg secretion may inspire further developments in codling moth control and the synthesis of biomimetic adhesives.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"243-253"},"PeriodicalIF":2.0,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129854","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}
{"title":"Silicon Amendment Activates Defence Reaction, Reduces the Incidence and Damage of Phloem Feeders and Enhances Yield in Green Gram (Vigna radiata L.)","authors":"Raju Patel, Gouranga Saw, Dhanendra Kumar Rana, Mallikarjuna Jeer, Prakash Nagabovanalli","doi":"10.1111/jen.70029","DOIUrl":"10.1111/jen.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>Silicon is a beneficial element; however, its effects on phloem feeders in dicot crops, such as green gram, are not well understood. An experiment was designed to investigate the impact of silicon, in the form of orthosilicic acid amendment, on phloem feeders, defence induction, and yield in green gram over two different growing seasons. The SML 668 cultivar responded more favourably to silicon supplementation than the PDM 139 cultivar for all parameters tested during both seasons. Among the application methods, soil drenching with orthosilicic acid at a rate of 2 mL L<sup>−1</sup> significantly reduced the incidence of phloem feeders, increased the plant-available silicon content in the soil solution, and enhanced silicon deposition (1.01%) in the leaves of green gram compared to foliar application, insecticidal checks and untreated controls. The increased silicon content significantly improved total soluble sugars, total phenol content and enhanced the activity of various antioxidants and defence enzymes, including polyphenol oxidase, phenylalanine ammonia lyase, catalase, peroxidase and superoxide dismutase, thereby reducing the incidences of <i>Aphis craccivora</i>, <i>Megalurothrips usitatus</i>, <i>Empoasca kerri</i> and <i>Bemisia tabaci</i>. The soil drenching method also significantly enhanced the activity of natural enemies and increased grain yield. The benefit-to-cost ratio was highest for soil drenching with orthosilicic acid (2 mL L<sup>−1</sup>), yielding ratios of 2.94 and 2.55, compared to the recommended insecticidal check, which yielded ratios of 2.51 and 2.17 during the summer and winter seasons, respectively. Both silicon supplementation methods outperformed insecticidal control in increasing seed yield, coccinellid activity, and induced biochemical defences, while also resulting in lower cultivation costs. Additionally, this method is straightforward to combine with other strategies for sustainable, environmentally friendly control of phloem feeders in green gram.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"230-242"},"PeriodicalIF":2.0,"publicationDate":"2025-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146154757","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}
{"title":"Identification of Effector Candidates in Fall Armyworm (Spodoptera frugiperda) via Secretome Prediction and Infestation Assay","authors":"Sundaram Shilpi, Sakshi Pandey, Vivek Verma, Jayendra Nath Shukla","doi":"10.1111/jen.70028","DOIUrl":"10.1111/jen.70028","url":null,"abstract":"<div>\u0000 \u0000 <p>Effector proteins, one of the major components of insect salivary glands, function to alter host defence mechanisms and facilitate pests for successful infestation. The fall armyworm, <i>Spodoptera frugiperda</i>, is a polyphagous lepidopteran insect that infests a wide range of agricultural crops. Despite being one of the world's most devastating pests, not much is known about the effector proteins of <i>S. frugiperda</i>. In this study, we conducted an <i>in silico</i> analysis of interproscan-annotated protein sequences derived from the <i>S. frugiperda</i> transcriptome using established secretome prediction pipelines. Out of 21,779 protein sequences of <i>S. frugiperda</i>, 821 proteins were predicted to be secretory in nature, resulting in the generation of an <i>in silico</i> secretome database for <i>S. frugiperda</i>. The proteins in the <i>S. frugiperda</i> secretome were categorised into different functional groups based on their annotated functions. From these data, genes corresponding to 20 protein candidates were selected on the basis of their functions and previous literature available, and a comparative analysis of their transcript levels in the salivary glands of <i>S. frugiperda</i> larvae fed on artificial diet versus tomato plants was performed. Three genes—a <i>serine protease</i>, a <i>BCL co-repressor</i> and a <i>REPAT</i> family gene—were found to be significantly upregulated in the salivary glands of <i>S. frugiperda</i> larvae fed on tomato plants. This highlights their secretory potential and possible involvement in host infestation. These findings signify that the predicted secretome, the first ever for <i>S. frugiperda</i>, can serve as a valuable resource for the identification of secreted proteins. This will pave the way for discovering potential effector proteins in <i>S. frugiperda</i> that play crucial roles in suppressing plant immune responses.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"218-229"},"PeriodicalIF":2.0,"publicationDate":"2025-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135823","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}
Md Mehedi Hasan, Shovon Chandra Sarkar, David Henry, Wei Xu
{"title":"From Plastic Waste to Resources: Current Status and Future Potential of Galleria mellonella","authors":"Md Mehedi Hasan, Shovon Chandra Sarkar, David Henry, Wei Xu","doi":"10.1111/jen.70025","DOIUrl":"10.1111/jen.70025","url":null,"abstract":"<div>\u0000 \u0000 <p>Plastic pollution is a pressing global challenge, with current management strategies often falling short regarding environmental impacts. As an alternative to plastic waste management approaches, the <i>Galleria mellonella</i> (Greater wax moth) has emerged as a potential natural agent to reduce plastic waste through its biodegradation. The <i>G. mellonella</i> larvae have a unique ability to consume and biodegrade various polymeric materials, including plastics, making them an eco-friendly solution to plastic waste management. This review provides a comprehensive overview of the current status of <i>G. mellonella</i> larvae in waste bioconversion and future perspectives in plastic waste management. Key challenges of the application of <i>G. mellonella</i> include its use in large-scale waste processing, economic feasibility, and environmental impact. This review highlights the potential of <i>G. mellonella</i> as a sustainable solution for plastic waste management and its possible integration into biorefineries for the production of valuable materials.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"207-217"},"PeriodicalIF":2.0,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136278","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}
Sam V. Cecconi, Nicole Notarianni, Darin J. McNeil
{"title":"Assessing Factors Associated With Detection Probability of the Japanese Burrowing Cricket (Velarifictorus micado) on Point Count Surveys","authors":"Sam V. Cecconi, Nicole Notarianni, Darin J. McNeil","doi":"10.1111/jen.70022","DOIUrl":"10.1111/jen.70022","url":null,"abstract":"<div>\u0000 \u0000 <p>Conservationists are tasked with developing effective monitoring regimes for wildlife species of interest. Effective monitoring is especially important for invasive species to map their spread and develop management strategies. One invasive species, the Japanese burrowing cricket (<i>Velarifictorus micado</i>), is steadily spreading across the eastern United States, however, aural monitoring protocols have never been developed. To inform potential monitoring efforts for this invasive insect, we conducted aural point count surveys for <i>V. micado</i> across the Inner Bluegrass Region of central Kentucky, United States, at all hours of the day from 19 September to 5 November 2024. We generated single-season occupancy models which allowed us to assess which variables (windspeed, barometric pressure, temperature, time of day, and ordinal date) that best predicted variation in detection probability. We detected <i>V. micado</i> at 16 of 49 sites (naive occupancy = 0.33). Detection probability (<i>p̂</i>) was generally low (<i>p̂</i> = 0.30 (95% CI: 0.15–0.51)), and our top model indicated that time of day and ordinal date were the strongest predictors of detection probability. Specifically, detection probability was maximised at sunset (<i>p̂</i> = 0.93) and declined linearly to sunrise (<i>p̂</i> = 0.24) and approached zero before noon. The effect of ordinal date was less dramatic and included a linear decline from 19 September (<i>p̂</i> = 0.71) to 5 November (<i>p̂</i> = 0.10). Our results clearly demonstrate that the optimal conditions for <i>V. micado</i> point count surveys are during the month of September and in the hours immediately preceding sunset. Future work assessing patterns of occupancy probability would be valuable in understanding the ecology of this invasive insect.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"200-206"},"PeriodicalIF":2.0,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136270","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}
Yasmine Antonini, João Custódio Fernandes Cardoso, Julia Machado Ordunha, Carlos Victor Mendonça-Filho, Bárbara Matos da Cunha Guimarães
{"title":"Often Forgotten, no Less Important: Coleoptera and Diptera as Pollinators in Tropical Mountain Ecosystems","authors":"Yasmine Antonini, João Custódio Fernandes Cardoso, Julia Machado Ordunha, Carlos Victor Mendonça-Filho, Bárbara Matos da Cunha Guimarães","doi":"10.1111/jen.70023","DOIUrl":"10.1111/jen.70023","url":null,"abstract":"<div>\u0000 \u0000 <p>Although bees have been extensively studied, other less charismatic insect groups, such as Diptera and Coleoptera, are often overlooked. However, these are widespread and integrate pollination networks, being dominant in specific habitats such as high-altitude regions. However, important knowledge gaps consist of: (1) most network studies are conducted in temperate mountains with limited data for tropical ones, (2) neglected pollinators are not the focus of investigations, and (3) most studies have a short temporal scale, without investigating seasonality effects throughout the year. To fill these gaps, we studied several sites in the Espinhaço Mountain Range (EMR), a local area with exceptional biodiversity and endemism. We compared the networks between the southern and northern areas across four seasons: early and late dry, and early and late wet seasons. We found two times more interactions between plants and pollinators in the southern than in the northern EMR. Plants engaged in Coleoptera and Diptera-mediated pollination are, in general, white, mass-flowering, and belong to Asteraceae, Cyperaceae, and Eriocaulaceae families. The number of interactions decreased from early wet to end dry, both in southern and northern EMR. Specialisation slightly increases over the seasons in the southern EMR but decreases in the northern. In general, nestedness was higher in the dry season. Networks are, in general, modular. Modularity was higher in the early wet season, progressively decreasing over the seasons in both areas. In conclusion, given the ecological dominance of Eriocaulaceae, Asteraceae, and other plant families in the EMR, the decline of Diptera and Coleoptera could imply cascading effects across the ecosystem. Also, as the networks change over the climatic seasons in this tropical mountain, this highlights the importance of understanding the complex effect of climate change on the EMR plant-pollinator interactions.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"188-199"},"PeriodicalIF":2.0,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146139729","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}
{"title":"Comparison of Soil-Dwelling Predatory Arthropod Activity Density and Diversity Under Annual and Perennial Cereal Production in Europe","authors":"Adalbert Balog, Konrad Martin","doi":"10.1111/jen.70024","DOIUrl":"10.1111/jen.70024","url":null,"abstract":"<div>\u0000 \u0000 <p>Frequent soil tillage, as associated with soil disturbance and the lack of permanent vegetation cover, may negatively impact soil and soil-dwelling organisms. To mitigate the serious constraints of annual crop production, a concept is the reversed shift from predominant annual to perennial grain crop production. <i>Thinopyrum intermedium</i> L. (Intermediate Wheatgrass<i>, IWG,</i> Kernza) is a recently domesticated perennial grain crop and can be grown for several years. We assumed that activity density and diversity of soil-dwelling arthropods will differ between IWG and winter wheat, and we particularly expected higher activity density and diversity in the IWG system compared to annual wheat. To test this, we recorded soil-dwelling predatory arthropods (Araneae, Carabidae, Staphylinidae) in two different study regions of Europe (France and Sweden), in 2 years in France and 1 year in Sweden. The overall results do not confirm our initial hypothesis that soil-dwelling Araneae, Carabidae and Staphylinidae show higher activity density and diversity in the perennial IWG system compared to annual winter wheat. This observation is true regardless of year and country, despite considerable differences in abundance and species composition of the communities, with a high effect of geographic location. Rather, there were even significantly higher activity densities in wheat than in IWG, as was the case for the Carabidae and Staphylinidae in Sweden, the Staphylinidae in France in 2022, and the Carabidae in France in 2023. Only the Araneae showed higher numbers of individuals in IWG than in wheat in France and in Sweden in 2022, but the differences were not significant.</p>\u0000 </div>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"179-187"},"PeriodicalIF":2.0,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146148091","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}
Eugenia Fezza, Joe M. Roberts, David R. Hall, Steven J. Harte, Daniel P. Bray, Toby J. A. Bruce, Lael E. Walsh, Michael T. Gaffney, Tom W. Pope
{"title":"An Apple a Day Does Not Keep the Weevils Away: Enhancing Vine Weevil Monitoring With Fruit-Based Volatiles","authors":"Eugenia Fezza, Joe M. Roberts, David R. Hall, Steven J. Harte, Daniel P. Bray, Toby J. A. Bruce, Lael E. Walsh, Michael T. Gaffney, Tom W. Pope","doi":"10.1111/jen.70021","DOIUrl":"10.1111/jen.70021","url":null,"abstract":"<p>Vine weevil (<i>Otiorhynchus sulcatus</i> Fabricius; Coleoptera: Curculionidae) is an economically important pest of soft fruit and ornamental crops worldwide. Despite extensive research over three decades, the development of an effective semiochemical lure to improve monitoring for this pest remains a challenge. This study investigated the behavioural and electrophysiological responses of adult vine weevils to apple sauce volatiles under laboratory conditions, using Y-tube olfactometer bioassays and headspace analysis using gas chromatography coupled to mass spectrometry (GC–MS) and GC coupled to electroantennographic detection (GC-EAD). In Y-tube bioassays, more adults selected the olfactometer arm containing apple sauce volatiles compared to the control arm at lower doses (0.1, 1 and 10 g) but not at higher doses (20 g). Thirteen compounds were identified in volatiles collected from apple sauce, with the major components being furfural and sorbic acid. Consistent electrophysiological responses were recorded to (E)-2-heptenal, 1-hexanol, (Z)-3-hexenol and (E)-2-hexenol. The behavioural response of vine weevil adults to refuges baited with semiochemical lures was also tested under glasshouse conditions. In this scenario, a greater proportion of individuals were recorded in refuges baited with apple sauce compared to unbaited refuges. A similar behavioural response was also recorded when refuges were baited with a combination of apple sauce and Fortune's spindle (<i>Euonymus fortunei</i> (Turcz.) Hand.-Maz.; Celastrales: Celastraceae) compared to those that were unbaited or individually baited with Fortune's spindle or apple sauce. This study indicates that apple sauce positively influences positively vine weevil behaviour and could serve as a basis for developing a novel lure for improved monitoring.</p>","PeriodicalId":14987,"journal":{"name":"Journal of Applied Entomology","volume":"150 2","pages":"168-178"},"PeriodicalIF":2.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jen.70021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146136357","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}