Entomologia Experimentalis et Applicata最新文献

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Irradiated males of the mosquito Aedes aegypti as disseminators of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae under laboratory conditions 实验室条件下经过辐照的雄性埃及伊蚊作为昆虫病原真菌Beauveria bassiana和Metarhizium anisopliae的传播者
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-14 DOI: 10.1111/eea.13556
Juan Leonardo Farfán-Ávila, Carlos F. Marina, Ariane Dor, Alfredo Castillo Vera
{"title":"Irradiated males of the mosquito Aedes aegypti as disseminators of the entomopathogenic fungi Beauveria bassiana and Metarhizium anisopliae under laboratory conditions","authors":"Juan Leonardo Farfán-Ávila,&nbsp;Carlos F. Marina,&nbsp;Ariane Dor,&nbsp;Alfredo Castillo Vera","doi":"10.1111/eea.13556","DOIUrl":"https://doi.org/10.1111/eea.13556","url":null,"abstract":"<p>The mosquito <i>Aedes aegypti</i> (L.) (Diptera: Culicidae) is a vector of diseases of global importance, such as dengue fever, chikungunya, and Zika. The increasing geographic expansion of this species, as well as its resistance to chemical insecticides, has prompted the search for alternatives to reduce its populations. The sterile insect technique (SIT) is a promising technique that is applied to regulate mosquito vector populations through the release of sterile males. The use of entomopathogens is another promising technique for vector control. In this study, we evaluated the capacity of irradiated <i>Ae. aegypti</i> males to transport spores of the entomopathogenic fungi <i>Beauveria bassiana</i> (Bals.-Criv.) Vuill. (Ascomycota) and <i>Metarhizium anisopliae</i> (Metchn.) Sorokin (Ascomycota) and infect conspecific females. Our results show that irradiated <i>Ae. aegypti</i> males are able to transport and transmit an infection of both entomopathogens to conspecific females. The time to locate a female is more variable for irradiated males, but overall similar to that for nonirradiated males, and independent of fungal infection status. Thus, irradiation does not appear to affect the capacity of males to transmit a fungal infection to conspecific females. A combination of both control strategies, entomopathogens and SIT, is promising for the control of disease-carrying mosquitoes, but future studies of male sexual competitiveness, in the field in addition to the laboratory, are still required.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"417-424"},"PeriodicalIF":1.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correlated evolution of physiological and life history traits in phytochemical-tolerant Drosophila 植物化学耐受性果蝇生理和生活史性状的相关进化
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-13 DOI: 10.1111/eea.13558
Santiago Bouzas, Valeria P. Carreira, Pablo E. Schilman, Lucas Kreiman, Ignacio M. Soto
{"title":"Correlated evolution of physiological and life history traits in phytochemical-tolerant Drosophila","authors":"Santiago Bouzas,&nbsp;Valeria P. Carreira,&nbsp;Pablo E. Schilman,&nbsp;Lucas Kreiman,&nbsp;Ignacio M. Soto","doi":"10.1111/eea.13558","DOIUrl":"https://doi.org/10.1111/eea.13558","url":null,"abstract":"<p>We investigated the correlated evolution of fitness-related traits in cactophilic species <i>Drosophila buzzatii</i> Patterson &amp; Wheeler and <i>D. koepferae</i> Fontdevila &amp; Wasserman (Drosophilidae, Drosophilini) as an indirect response to adaptation to high concentrations of phytochemicals in their host plant (<i>Trichocereus terscheckii</i> Briton &amp; Rose). Specifically, we examined whether the experimental evolution of phytochemical tolerance influenced metabolic rate, fecundity, longevity, and starvation resistance. Our findings reveal that adaptation to phytochemical defenses led to correlated responses in both species, likely driven by genetic correlations and energy allocation strategies. Notably, sexual dimorphism was evident, underscoring the significance of sex-specific effects in the adaptive process. The tolerant phenotypes of each species emerged from distinct pleiotropic backgrounds, with <i>D. buzzatii</i> exhibiting more correlated responses than <i>D. koepferae</i>, suggesting a deeper genetic perturbation or response during the experimental evolution. This study demonstrates how exploiting a marginally used host can impose costs on crucial fitness-related traits, such as adult lifespan and reproductive output. Moreover, ignoring variation in tolerance to phytotoxins would overlook the diversity of responses across species. This variation is essential for understanding how different species manage to exploit toxic plants. Neglecting this aspect would result in a simplified view of insect–plant interactions, failing to account for the nuanced ways in which insects evolve strategies to detoxify or avoid harmful substances.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 7","pages":"747-755"},"PeriodicalIF":1.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal performance drifts between the egg parasitoid Telenomus remus and the fall armyworm may threaten the efficacy of biological control under climate change 卵寄生虫 Telenomus remus 与秋天军虫之间的热性能漂移可能会在气候变化下威胁生物防治的效果
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-13 DOI: 10.1111/eea.13557
Macdonald Mubayiwa, Honest Machekano, Brighton M. Mvumi, Winnifred A. Opio, Bame Segaiso, Frank Chidawanyika, Casper Nyamukondiwa
{"title":"Thermal performance drifts between the egg parasitoid Telenomus remus and the fall armyworm may threaten the efficacy of biological control under climate change","authors":"Macdonald Mubayiwa,&nbsp;Honest Machekano,&nbsp;Brighton M. Mvumi,&nbsp;Winnifred A. Opio,&nbsp;Bame Segaiso,&nbsp;Frank Chidawanyika,&nbsp;Casper Nyamukondiwa","doi":"10.1111/eea.13557","DOIUrl":"https://doi.org/10.1111/eea.13557","url":null,"abstract":"<p>The fall armyworm, <i>Spodoptera frugiperda</i> J.E. Smith, is a significant global agricultural pest known for its rapid invasion and devastating impact on crops. While pesticides may be effective for controlling the pest in the short-term, they cause several socioeconomic and ecological costs that highlight the need for more sustainable management strategies. <i>Telenomus remus</i> (Nixon) is a promising egg parasitoid for its biological control. For the parasitoid to provide effective ecosystem services, it should be able to survive and coexist within the same ecological niches as its host. However, there is limited information regarding the potential responses of <i>T. remus</i> to thermal changes. In the context of the changing climate environments, it is key to understand the parasitoid's overall environmental fitness in relation to its host. We investigated the effects of short-term (2 h) and long-term (6 h) acclimation pretreatment of <i>T. remus</i> adults and <i>S. frugiperda</i> eggs to high and low temperatures (18°C and 32°C, respectively) in comparison with the control (28°C). <i>Telenomus remus</i> thermal fitness (critical thermal maxima [CT<sub>max</sub>], heat knockdown time and critical thermal minima [CT<sub>min</sub>]), parasitism rates, and adult emergence were determined. Pretreated <i>S. frugiperda</i> eggs were assessed for hatchability under the control conditions. Acclimation at low (18°C) and high (32°C) temperatures significantly reduced and increased heat tolerance, respectively. Both temperatures, however, reduced cold tolerance. The parasitoid thermal tolerance polygons following acclimation pretreatment, showed significant heat- but not cold-tolerance gains. Fall armyworm eggs short-term acclimated to 32°C had significantly higher (<i>p</i> &lt; 0.05) but comparable hatchability to the control treatment. Similarly, parasitism and adult emergence rates were significantly lower (<i>p</i> &lt; 0.001) following long-term acclimation of host eggs and the parasitoid to 32°C. These findings suggest that high temperatures may decouple the <i>T. remus</i>-fall armyworm ecological relationship, threatening its success in warming regions. The findings provide valuable insights into the potential environmental resilience and suitability of <i>T. remus</i> as a biological control agent across different climates or geographies.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"338-350"},"PeriodicalIF":1.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.13557","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wax moth larvae demonstrate a high level of humoral immunity after envenomation by parasitoid Habrobracon hebetor 蜡蛾幼虫被寄生虫 Habrobracon hebetor 感染后表现出高度的体液免疫力
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-13 DOI: 10.1111/eea.13559
Elena S. Kosman, Olga N. Yaroslavtseva, Natalia A. Kryukova, Ulyana N. Rotskaya, Viktor V. Glupov, Vadim Y. Kryukov
{"title":"Wax moth larvae demonstrate a high level of humoral immunity after envenomation by parasitoid Habrobracon hebetor","authors":"Elena S. Kosman,&nbsp;Olga N. Yaroslavtseva,&nbsp;Natalia A. Kryukova,&nbsp;Ulyana N. Rotskaya,&nbsp;Viktor V. Glupov,&nbsp;Vadim Y. Kryukov","doi":"10.1111/eea.13559","DOIUrl":"https://doi.org/10.1111/eea.13559","url":null,"abstract":"<p>A successful development of parasitoids on their insect hosts is determined by various factors, including the host's physiological response and proliferation of concomitant microbes. However, such interactions have not been sufficiently studied from the point of view of host immunity. In this report, we studied parameters of immunity in <i>Galleria mellonella</i> L. (Lepidoptera: Pyralidae) larvae after envenomation by <i>Habrobracon hebetor</i> Say (Hymenoptera: Braconidae), infection with the entomopathogenic fungus <i>Metarhizium robertsii</i> JF Bisch, SA Rehner et Humber (Hypocreales) and combination of these treatments. We utilized qPCR to analyze the expression of genes encoding antimicrobial peptides (AMPs), metalloproteinase inhibitors (IMPI), as well as reactive oxygen species-, stress- and apoptosis-related genes in the fat body and integuments of the larvae. The parasitoid's venom upregulates the expression of host genes coding for AMPs, NADP-H oxidase 4 (<i>nox-4</i>), <i>impi</i>, and heat shock proteins (<i>hsp</i> 70). Surprisingly, the envenomated insects responded actively to fungal infection by upregulation of <i>galiomycin</i>, <i>gallerimycin</i>, <i>gloverin</i>, <i>cecropin-like</i>, <i>nox-4</i>, and <i>inhibitor of apoptosis</i> genes in the fat body and/or integuments. We conclude that envenomated wax moth larvae retain a high level of humoral immunity in response to the infection. We discuss that these reactions could be beneficial for the parasitoid, as they prevent the development of opportunistic infections. However, an increase in these immune parameters does not defend wax moth larvae from infection caused by entomopathogenic fungi.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"351-360"},"PeriodicalIF":1.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterizing brown marmorated stink bug, Halyomorpha halys Stål, host plant usage and acceptability: Methodological strengths and shortcomings 褐纹臭虫,Halyomorpha halys stastul,寄主植物使用和可接受性的特征:方法学的优点和缺点
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-11 DOI: 10.1111/eea.13553
Whitney T. Hadden, James R. Hepler, Elizabeth H. Beers, William Rodney Cooper, Tracy C. Leskey, J. Christopher Bergh
{"title":"Characterizing brown marmorated stink bug, Halyomorpha halys Stål, host plant usage and acceptability: Methodological strengths and shortcomings","authors":"Whitney T. Hadden,&nbsp;James R. Hepler,&nbsp;Elizabeth H. Beers,&nbsp;William Rodney Cooper,&nbsp;Tracy C. Leskey,&nbsp;J. Christopher Bergh","doi":"10.1111/eea.13553","DOIUrl":"https://doi.org/10.1111/eea.13553","url":null,"abstract":"<p>We assessed the brown marmorated stink bug, <i>Halyomorpha halys</i> (Stål) (Hemiptera: Pentatomidae), seasonal patterns of host use and/or preference using three diverse approaches. We compared <i>H. halys</i> captures in small pyramid traps baited with <i>H. halys</i> aggregation pheromone and deployed them in the mid-canopy of individual host trees during discrete intervals over two seasons. Whereas captures were greatest in the late season, there was no significant effect of host tree species on captures, with the presence of pheromone lures likely confounding the results. Harmonic radar was used to measure the retention duration of tagged <i>H. halys</i> on potted trees, including <i>Ailanthus altissima</i> (Mill.) Swingle (Simaroubaceae), <i>Robinia pseudoacacia</i> L. (Fabaceae), <i>Celtis occidentalis</i> L. (Cannabaceae), <i>Morus rubra</i> L. Moraceae, <i>Prunus persica</i> (L.) Batsch (Rosaceae), and <i>Malus domestica</i> Mill. (Rosaceae) as a proxy for host acceptability. Season-long, adults were retained significantly longer on <i>P. persica</i> and pheromone-baited <i>M. domestica</i> (positive control) compared with the non-host grass treatment (negative control). For nymphs, significantly longer retention was recorded on nearly all hosts compared with the non-host grass treatment. We also evaluated the results of molecular gut content analysis of adults collected in the early and late seasons. Plant DNA from 22 genera across 18 families was detected. Commonly detected early-season hosts included <i>Betula</i>, <i>Diospyros</i>, <i>Juglans</i>, <i>Liriodendron</i>, <i>Prunus</i>, <i>Rubus</i>, and <i>Sisymbrium</i> and late-season hosts included <i>Ailanthus</i>, <i>Chenopodium</i>, <i>Juglans</i>, <i>Persicaria</i>, and <i>Prunus</i>. Overall, harmonic radar provided context for seasonal changes in host acceptability, and gut content results provided confirmation of specific host usage at different points in the season. Combining these two methods could provide a more comprehensive approach for defining host use patterns of this polyphagous pest.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"403-416"},"PeriodicalIF":1.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.13553","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimizing field collection and laboratory conservation of the parasitoid Trichomalus perfectus before release against the cabbage seedpod weevil Ceutorhynchus obstrictus 优化完美毛滴虫对白菜种子象鼻虫放生前的田间采集和室内保存
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-10 DOI: 10.1111/eea.13555
Marie D'Ottavio, Geneviève Labrie, Eric Lucas
{"title":"Optimizing field collection and laboratory conservation of the parasitoid Trichomalus perfectus before release against the cabbage seedpod weevil Ceutorhynchus obstrictus","authors":"Marie D'Ottavio,&nbsp;Geneviève Labrie,&nbsp;Eric Lucas","doi":"10.1111/eea.13555","DOIUrl":"https://doi.org/10.1111/eea.13555","url":null,"abstract":"<p>In Canada, the cabbage seedpod weevil pest, <i>Ceutorhynchus obstrictus</i> (Marsham) (Coleoptera: Curculionidae), causes damage to canola (<i>Brassica napus</i> L., Brassicaceae) crops. <i>Trichomalus perfectus</i> (Walker) (Hymenoptera: Pteromalidae) is the most effective larval parasitoid for controlling it in Quebec and Ontario, but it is absent from the Canadian Prairies. This study aimed to optimize <i>T. perfectus</i> field collection (using sampling methods and selecting optimal collection sites based on local and landscape scales) and laboratory conservation according to cold temperatures, relative humidity (RH), and diet conditions before field releases. Two sampling methods were compared: 54 sweeping nets were conducted for 30 s each, and 20 pod collections lasted 90 s each. At a local scale, 1000 pods were collected from two edges, distributed along adjacent environments, and at two distances of 58 canola fields. At a landscape scale, landscape predictors were measured within a 500-m radius from 37 canola fields. Regarding laboratory conservation, parasitoid females were divided into five groups containing between 50 and 60 females and subjected to different conservation combinations of temperature, RH, and diet to assess survival rates every 8 to 10 days over 105 days. Results indicated that pod collection was superior to sweeping nets for maximizing <i>T. perfectus</i> collection. To release 2000 parasitoids, 223 emergence boxes, each containing 740 pods and generating about 9 parasitoids, would be required, and all pods could be collected in 5.5 h. At a local scale, pod collection along all canola field edges, without specific targeting of adjacent environments, proved effective, maintaining a 5-m distance. At a landscape scale, the collection of <i>T. perfectus</i> is maximized in a more diversified landscape, correlating with eight different landscape elements resulting in 10 <i>T. perfectus</i> per 1000 collected pods. Regarding laboratory conservation, female parasitoids' survival was highest when fed a protein-free diet (only honey solution) and cold-stored for at least 3 months at 5°C and 30%–50% RH.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"361-375"},"PeriodicalIF":1.4,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.13555","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sexual calling behaviour, and the effects of immediate mating history and consexual presence in the seven-spot ladybird, Coccinella septempunctata 七星瓢虫的性呼唤行为,以及直接交配史和异性存在对七星瓢虫的影响
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-03-06 DOI: 10.1111/eea.13551
Luca Feuerriegel, John J. Sloggett
{"title":"Sexual calling behaviour, and the effects of immediate mating history and consexual presence in the seven-spot ladybird, Coccinella septempunctata","authors":"Luca Feuerriegel,&nbsp;John J. Sloggett","doi":"10.1111/eea.13551","DOIUrl":"https://doi.org/10.1111/eea.13551","url":null,"abstract":"<p>Pheromones perform a variety of functions in intraspecific communication in insects, including the identification of conspecifics, aggregation, alarm and mate-finding. Calling behaviour, in which generally females release volatile sex pheromones to attract the opposite sex, has been studied in several coleopteran families. Within the Coccinellidae, a putative calling behaviour has thus far only been identified in one species, <i>Harmonia axyridis</i>. In this study, a postulated calling behaviour in the seven-spot ladybird <i>Coccinella septempunctata</i> L. is described. We also investigated the effects of immediate mating history and the presence of conspecifics on this behaviour. Calling only occurs in females, and significantly fewer females called immediately after mating (observation started within 5 min). Of mated females that called, the number of calling bouts, durations per bout and total calling duration were not significantly different from females that had not immediately mated before. The presence of conspecific females or males did not significantly affect calling. This study provides a key step in furthering our understanding of the reproductive biology of ladybirds. Given that <i>C. septempunctata</i> is a widespread coccinellid, it is surprising that this behaviour has so far remained undescribed. This may be partly due to the infrequency of calling.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"393-402"},"PeriodicalIF":1.4,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.13551","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Repellence of δ-nonalactone in German cockroaches of different stages, sexes, and ages 不同龄期、性别、年龄德国蜚蠊对δ-非内酯的驱避作用
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-02-27 DOI: 10.1111/eea.13552
Analía Sforzín, Alejandro Lucia, Raúl A. Alzogaray
{"title":"Repellence of δ-nonalactone in German cockroaches of different stages, sexes, and ages","authors":"Analía Sforzín,&nbsp;Alejandro Lucia,&nbsp;Raúl A. Alzogaray","doi":"10.1111/eea.13552","DOIUrl":"https://doi.org/10.1111/eea.13552","url":null,"abstract":"<p>δ-Nonalactone is a cyclic hydroxycarboxylic acid ester with a six-membered ring found in several fruits and animal products for human consumption. It has shown repellent activity in tsetse flies <i>Glossina pallidipes</i> Wiedemann (Diptera: Glossinidae) and <i>Glossina morsitans morsitans</i> Westwood (Diptera: Glossinidae), as well as in first instar nymphs of the German cockroach, <i>Blattella germanica</i> Linnaeus (Hemiptera: Ecotibiidae). The aim of this study was to investigate the behavioral response of the German cockroach to the repellence produced by δ-nonalactone and how this behavior changes according to nymph stage, age, sex, and presence or absence of antennae. Small, medium, and large nymphs, as well as adult males and females, were exposed to δ-nonalactone-treated filter paper. Small nymphs were the most affected by the repellent effect of δ-nonalactone. No differences were observed in the response between males and females, nor in adult males aged ranging between less than 6 h to 90 days old. Likewise, no repellent effects were observed in antennectomized cockroaches. These results suggest that small nymphs of <i>B. germanica</i> are more sensitive to the repellent effect of δ-nonalactone than other stages. Furthermore, the response to this repellent is independent of sex and age, and its receptors appear to be located exclusively on the antennae. The present study encourages us to further our investigations on the use of δ-nonalactone in the integrated pest management of German cockroaches.</p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 5","pages":"386-392"},"PeriodicalIF":1.4,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental conditions can indirectly affect passive pathogen spread by altering insect dispersal 环境条件可以通过改变昆虫的传播方式间接影响被动病原体的传播
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-02-17 DOI: 10.1111/eea.13549
Natalie Constancio, Zsofia Szendrei
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引用次数: 0
Editor's Choice: April 2025 编者按:2025年4月
IF 1.4 3区 农林科学
Entomologia Experimentalis et Applicata Pub Date : 2025-02-15 DOI: 10.1111/eea.13550
Leo W. Beukeboom
{"title":"Editor's Choice: April 2025","authors":"Leo W. Beukeboom","doi":"10.1111/eea.13550","DOIUrl":"https://doi.org/10.1111/eea.13550","url":null,"abstract":"<p>Investigation of host plant contact with <i>Diaphorina citri</i> by detecting <i>D. citri</i>-derived environmental DNA—<i>T. Fujikawa, K. Fujiwara, H. Inoue, H. Hatomi and S. Hayashikawa</i> (https://doi.org/10.1111/eea.13546).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":11741,"journal":{"name":"Entomologia Experimentalis et Applicata","volume":"173 4","pages":"271"},"PeriodicalIF":1.4,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/eea.13550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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