Journal of Asia-pacific Entomology最新文献

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Effect of pollen consumption on development and intraguild predation of two predatory Coccinellidae 花粉消耗对两种食肉蝇科昆虫的发育和群内捕食的影响
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-09-07 DOI: 10.1016/j.aspen.2024.102320
Peng-Liang Xia , Xiu-Fang Wang , Yi Feng , Yong Huang , Fei Ji , Wen-Xiao Cui , Bao-Ming Qiao
{"title":"Effect of pollen consumption on development and intraguild predation of two predatory Coccinellidae","authors":"Peng-Liang Xia ,&nbsp;Xiu-Fang Wang ,&nbsp;Yi Feng ,&nbsp;Yong Huang ,&nbsp;Fei Ji ,&nbsp;Wen-Xiao Cui ,&nbsp;Bao-Ming Qiao","doi":"10.1016/j.aspen.2024.102320","DOIUrl":"10.1016/j.aspen.2024.102320","url":null,"abstract":"<div><p>Many omnivorous predaceous coccinellids consume both pests like aphids and a range of plant-derived foods including pollen. It is critical to understand how plant-derived food like pollen could affect the fitness and interspecific interactions of predaceous coccinellids. This study investigated the effect of pollen consumption on the development, reproduction and intraguild predation (IGP) of two naturally co-existing aphidophagous ladybirds, <em>Harmonia axyridis</em> and <em>Propylea japonica</em>. Both species were provided with three diets including a moist canola pollen, the aphid <em>Myzus persicae</em>, or moist canola pollen together with aphids. The 1st instar larval of both <em>H. axyridis</em> and <em>P. japonica</em> could not survive and develop to the next larval stage when supplied with water alone. When fed on pollen only, 53 % of the <em>H. axyridis</em> larvae and 25 % of the <em>P. japonica</em> larvae successfully developed to adult. Both species exhibited an elongated development time, shorter larval body length and lower adult body weight than when offered with aphids and the mixed diet. In addition, <em>P. japonica</em> could not reproduce when fed on pollen alone. Interestingly, when pollen was provided as additional food, the overall IGP between larvae of <em>H. axyridis</em> and <em>P. japonica</em> was significantly reduced compared with water control or aphid as food alone. The results of this study indicated that pollen not only supports the survival of <em>H. axyridis</em> and <em>P. japonica</em> when prey is scarce, but also could benefit the co-existence of these species. For future study, it is necessary to investigate how pollinivory could benefit the fitness and biological control potential of <em>H. axyridis</em> and <em>P. japonica</em> under field conditions.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102320"},"PeriodicalIF":1.1,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233066","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
Two new species of the subgenus Tipula (Emodotipula) Alexander, 1966 (Diptera, Tipulidae) from southwest China 来自中国西南地区的 Tipula (Emodotipula) 亚属的两个新种 Alexander, 1966 (Diptera, Tipulidae)
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-09-06 DOI: 10.1016/j.aspen.2024.102318
Qi-Cheng Yang , Li-Ling Mo , Jing Wang , Xiao-Yan Liu , Ding Yang
{"title":"Two new species of the subgenus Tipula (Emodotipula) Alexander, 1966 (Diptera, Tipulidae) from southwest China","authors":"Qi-Cheng Yang ,&nbsp;Li-Ling Mo ,&nbsp;Jing Wang ,&nbsp;Xiao-Yan Liu ,&nbsp;Ding Yang","doi":"10.1016/j.aspen.2024.102318","DOIUrl":"10.1016/j.aspen.2024.102318","url":null,"abstract":"<div><div>Only four species of the subgenus Emodotipula Alexander, 1966 were known to occur in China. Two new species, Tipula (Emodotipula) chayuensis, sp. nov., and Tipula (Emodotipula) kangdingensis, sp. nov., are described and illustrated. A key to the species of Tipula (Emodotipula) from China is presented.</div><div>LSID: urn:lsid:zoobank.org:pub:C96BF4D7-68CD-4F5F-9EAA-FF2909A419FF.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102318"},"PeriodicalIF":1.1,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322963","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
Potential of insect-based milk moiety from Pacific beetle cockroach, Diploptera punctata (Blattodea): Insights as superfood 从太平洋甲虫蜚蠊(Diploptera punctata (Blattodea))中提取的昆虫乳成分的潜力:作为超级食品的启示
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-09-05 DOI: 10.1016/j.aspen.2024.102319
Karthika Pushparaj , Chitra Pechimuthu , Manikantan Pappuswamy , Balamuralikrishnan Balasubramanian
{"title":"Potential of insect-based milk moiety from Pacific beetle cockroach, Diploptera punctata (Blattodea): Insights as superfood","authors":"Karthika Pushparaj ,&nbsp;Chitra Pechimuthu ,&nbsp;Manikantan Pappuswamy ,&nbsp;Balamuralikrishnan Balasubramanian","doi":"10.1016/j.aspen.2024.102319","DOIUrl":"10.1016/j.aspen.2024.102319","url":null,"abstract":"<div><p><em>Diploptera punctata</em> is a viviparous cockroach and secretes a concoction of glycosylated proteins as a basis of nutrition for developing embryos termed as cockroach milk. The milk proteins were identified as the lipocalin-like milk proteins (Lili-Mip) which are present in the brood sac of the gestated female <em>D. punctata</em>. Blotting techniques and RNA transcriptome assays have reported analogous Lili-Mip in the midgut of <em>D. puncta</em> embryos, which proved the ingestion during development inside brood sac. Thermodynamics and kinetic studies augmented the stability of the milk crystals and their controlled release mechanism of sustenance. Gene ontogeny reported the evolution of the ovoviviparous to viviparous due to selective pressures posed during the development stages of the embryos. Molecular simulation modelling studied unveiled the binding efficacies of the milk protein to build strong affiliates to the ligands to form a stable milk protein complex. Ahead of its nutritional benefits, cockroach milk also offers environmental advantages compared to traditional dairy and plant-based milk production. Nevertheless, there are still important hurdles to overcome to include this unconventional superfood as staple in human diets which are also discussed in the review. This review explored the existing molecular, evolutionary and biochemical insights for understanding the phenomena of the production of milk crystals and addressed the research gaps for developing a novel nutrient prospective from insect source.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102319"},"PeriodicalIF":1.1,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168113","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
Bioassay-guided separation of antioxidants in Blaps rynchopetera Fairmaire and their theoretical mechanism 生物测定指导下的 Blaps rynchopetera Fairmaire 抗氧化剂分离及其理论机制
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-31 DOI: 10.1016/j.aspen.2024.102317
Zhenni Ji , Chang Liu , Fa Xu , Yi Wang , Dongyu Gu , Yun Huang , Yi Yang
{"title":"Bioassay-guided separation of antioxidants in Blaps rynchopetera Fairmaire and their theoretical mechanism","authors":"Zhenni Ji ,&nbsp;Chang Liu ,&nbsp;Fa Xu ,&nbsp;Yi Wang ,&nbsp;Dongyu Gu ,&nbsp;Yun Huang ,&nbsp;Yi Yang","doi":"10.1016/j.aspen.2024.102317","DOIUrl":"10.1016/j.aspen.2024.102317","url":null,"abstract":"<div><p><em>Blaps rynchopetera</em> Fairmaire is a medicinal insect with a wide range of biological activities. Some of its activities, including anti-cancer and anti-inflammatory activities, are closely related to antioxidant capacity. In this study, a method was established to investigate components and theoretical mechanism of antioxidant from <em>B. rynchopetera</em>. As a result, two antioxidants were obtained by bioassay-guided separation and identified as 4-(2-hydroxyethyl)-1,2-benzenediol and 4-ethylbenzol-1,3-diol. Their EC<sub>50</sub> were 20.20 ± 0.30 μM and 22.90 ± 1.30 μM for ABTS·<sup>+</sup> scavenging, and 153.00 ± 2.00 μM and 301.00 ± 3.00 μM for DPPH· scavenging, respectively. The thermodynamic investigation indicated that the 2-OH of 4-(2-hydroxyethyl)-1,2-benzenediol and the 1-OH of 4-ethylbenzol-1,3-diol were more susceptible to be attacked by free radicals. They tended to exert antioxidant effects via the sequential proton loss electron transfer mechanism in polar media, whereas the hydrogen atom transfer mechanism was more likely to occur in non-polar media. In addition, frontier molecular orbital theory and energy barrier analysis suggested that 4-(2-hydroxyethyl)-1,2-benzenediol was more likely to react with DPPH·. These results confirmed that 4-(2-hydroxyethyl)-1,2-benzenediol had better antioxidant potential.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102317"},"PeriodicalIF":1.1,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142128610","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
Carboxylesterase α-EST5 is required for the red flour beetle to metabolize mugwort essential oil 红粉甲虫代谢艾草精油需要羧基酯酶 α-EST5
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-30 DOI: 10.1016/j.aspen.2024.102316
Kui Liu , Junxian Xia , Zhiyu Zhu , Guangyan Zhang , Wei Wang , Zupei Yi , Shuang Xue , Shanshan Gao
{"title":"Carboxylesterase α-EST5 is required for the red flour beetle to metabolize mugwort essential oil","authors":"Kui Liu ,&nbsp;Junxian Xia ,&nbsp;Zhiyu Zhu ,&nbsp;Guangyan Zhang ,&nbsp;Wei Wang ,&nbsp;Zupei Yi ,&nbsp;Shuang Xue ,&nbsp;Shanshan Gao","doi":"10.1016/j.aspen.2024.102316","DOIUrl":"10.1016/j.aspen.2024.102316","url":null,"abstract":"<div><p>The red flour beetle (<em>Tribolium castaneum</em>) is a global agricultural grain storage pest that seriously jeopardizes the food safety of wheat, corn, and other grains. Carboxylesterases belong to a family of multifunctional enzymes that can participate in the metabolism of toxic substances ingested by <em>T. castaneum</em>, conferring drug resistance. In this study we have cloned from <em>T. castaneum</em> a gene encoding carboxylesterase, <em>α-EST5</em>, which is expressed mainly in <em>T. castaneum</em> late larvae and late adults. Tissue expression pattern analysis showed that <em>α-EST5</em> was mainly expressed in the larval gut and adult head. Moreover, <em>α-EST5</em> was able to be induced to be expressed by mugwort essential oils and significantly increased the enzymatic activity of carboxylesterase in <em>T. castaneum</em> after mugwort essential oil treatment. The sensitivity of <em>T. castaneum</em> to mugwort essential oils was significantly increased after knockdown the expression of <em>α-EST5</em> using RNAi (RNA interference) technology. Through our study, we demonstrated that the carboxylesterase α-EST5 plays an important role in the detoxification of mugwort essential oils by <em>T. castaneum</em>. This study results provide a reference for understanding the detoxification mechanism of <em>T. castaneum</em> to external toxic substances.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102316"},"PeriodicalIF":1.1,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142096818","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
Field studies of synthetic food-based attractants for detecting invasive fruit flies (Diptera: Tephritidae) 用于检测入侵果蝇(双翅目:栉孔蝇科)的合成食物引诱剂的实地研究
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-27 DOI: 10.1016/j.aspen.2024.102313
Todd E. Shelly , Thomas J. Fezza
{"title":"Field studies of synthetic food-based attractants for detecting invasive fruit flies (Diptera: Tephritidae)","authors":"Todd E. Shelly ,&nbsp;Thomas J. Fezza","doi":"10.1016/j.aspen.2024.102313","DOIUrl":"10.1016/j.aspen.2024.102313","url":null,"abstract":"<div><p>True fruit fly species (Diptera: Tephritidae) threaten the production and international trade of many fruit and vegetable crops. Many fruit fly-free regions operate trapping programs for the detection of these invasive pests, and food baits are an important component of detection trapping. A torula yeast-borax (TYB) solution has been widely used as a food bait, but it has a relatively short field longevity and is generally replaced every 1–2 weeks. Dry synthetic food-based attractants, consisting of ammonium acetate, putrescine, and trimethylamine, have been developed and appear to be effective for several months. Initially, the three components were presented in individual sachets within a trap, but to ease handling ‘all-in-one’ dispensers have been developed that contain all three components. While a logistical improvement, there are few data that compare captures between the standard TYB solution and these combination dispensers. This study presents the results of field experiments assessing the relative effectiveness of three ‘all-in-one’ dispensers of synthetic food-based attractants (i.e., Scentry food cones, Suterra Unipaks, and Susbin Difusors) in trapping three major pest species of tephritid fruit flies in Hawaii. The data presented here indicate that, with respect to <em>C</em>. <em>capitata</em>, the Difusor lures performed as well as TYB, while the Unipaks and food cones were significantly less attractive than TYB. With respect to <em>B</em>. <em>dorsalis</em> and <em>Z</em>. <em>cucurbitae</em>, none of the synthetic baits tested was as effective as TYB. Thus, among the baits studied here, TYB was most effective in attracting all three of the target species.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102313"},"PeriodicalIF":1.1,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083880","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
A comprehensive review on the multifaceted applications of mulberry silkworm pupae: A sustainable resource 关于桑蚕蛹多方面应用的全面综述:一种可持续资源
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-22 DOI: 10.1016/j.aspen.2024.102312
Amita Beniwal , Deeptimayee Mahapatara , Mamoni Das , Sumita Acharjee , Jadav Sarma , Arijit Shome , Ananta Madhab Baruah , Vikram
{"title":"A comprehensive review on the multifaceted applications of mulberry silkworm pupae: A sustainable resource","authors":"Amita Beniwal ,&nbsp;Deeptimayee Mahapatara ,&nbsp;Mamoni Das ,&nbsp;Sumita Acharjee ,&nbsp;Jadav Sarma ,&nbsp;Arijit Shome ,&nbsp;Ananta Madhab Baruah ,&nbsp;Vikram","doi":"10.1016/j.aspen.2024.102312","DOIUrl":"10.1016/j.aspen.2024.102312","url":null,"abstract":"<div><p>The nutrient profile of the mulberry silkworm pupae as a food source has attracted attention because of the rising insect consumption in Western and Asian nations. With 2.5 billion more people and a 70% increase in food consumption by 2050, crop yields will become insufficient to cater to the needs. To overcome this obstacle, insects offer a nourishing solution because of their environmental responsibility, sustainability, and nutrient worth. Delving into the vast potential of mulberry silkworm pupae, this comprehensive review sheds light on their versatility as a valuable resource beyond their use in silk production. Rooted in a longstanding tradition of sericulture, these pupae hold promise in various fields such as agriculture, medicine, and nutrition. From serving as a protein-rich feed for livestock and a natural fertilizer to providing an abundant source of medicinal compounds, current research highlights their diverse capabilities. However, amidst the growing interest, there remains a dearth of consolidated information. This study aims to bridge this gap with an all-encompassing review, identifying areas for further research, and advocating for their integration into sustainable practices. Our goal is to direct future research, inform policymakers, and promote the utilization of mulberry silkworm pupae as a sustainable resource in various industries.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102312"},"PeriodicalIF":1.1,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087925","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
Elevated developmental temperature affects gene expression and oxidative stress in bumblebee (Bombus terrestris) workers 发育温度升高对大黄蜂(Bombus terrestris)工蜂基因表达和氧化应激的影响
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-13 DOI: 10.1016/j.aspen.2024.102311
Yun Hui Kim , Bo Yeon Kim , Han Soo Kim, Jin Myeong Kim, Weiyue Qiu, Hyung Joo Yoon, Kwang Sik Lee, Byung Rae Jin
{"title":"Elevated developmental temperature affects gene expression and oxidative stress in bumblebee (Bombus terrestris) workers","authors":"Yun Hui Kim ,&nbsp;Bo Yeon Kim ,&nbsp;Han Soo Kim,&nbsp;Jin Myeong Kim,&nbsp;Weiyue Qiu,&nbsp;Hyung Joo Yoon,&nbsp;Kwang Sik Lee,&nbsp;Byung Rae Jin","doi":"10.1016/j.aspen.2024.102311","DOIUrl":"10.1016/j.aspen.2024.102311","url":null,"abstract":"<div><p>Climate change can negatively impact bumblebee populations, which are crucial pollinators in agricultural systems and natural ecosystems. Bumblebee nest temperatures typically range from 27 to 32 °C, and workers engage in wing fanning to maintain a nest temperature below 32 °C. We investigated the gene expression profile in queen, worker, and male bumblebees (<em>Bombus terrestris</em>) at 27 °C, which is the optimal ambient temperature, and 32 °C, which is the upper-temperature limit requiring wing fanning. We found that a developmental temperature of 32 °C significantly increased the expression of genes related to growth, immune response, antioxidants, and chaperones in workers. Compared to workers reared at 27 °C, those reared at 32 °C exhibited a significant increase in reactive oxygen species (ROS) and iron concentrations in the hemolymph. Additionally, the gene expression of superoxide dismutase (<em>SOD</em>) and transferrin (<em>Tf</em>) was significantly increased in workers at 32 °C. These findings indicate that a developmental temperature of 32 °C in bumblebees, especially workers, leads to an increase in gene expression, including <em>SOD</em> and <em>TF</em>, in response to thermal stress.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 3","pages":"Article 102311"},"PeriodicalIF":1.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985213","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
Effect of critical temperatures on mortality and cuticle composition of Plodia interpunctella larvae: Insights from GC–MS analysis and SEM imaging 临界温度对内蝼蛄幼虫死亡率和角质层组成的影响:气相色谱-质谱分析和扫描电镜成像的启示
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-13 DOI: 10.1016/j.aspen.2024.102309
Fatemeh Ghaedi, Habib Abbasipour, Jaber Karimi
{"title":"Effect of critical temperatures on mortality and cuticle composition of Plodia interpunctella larvae: Insights from GC–MS analysis and SEM imaging","authors":"Fatemeh Ghaedi,&nbsp;Habib Abbasipour,&nbsp;Jaber Karimi","doi":"10.1016/j.aspen.2024.102309","DOIUrl":"10.1016/j.aspen.2024.102309","url":null,"abstract":"<div><p>The Indian meal moth, <em>Plodia interpunctella</em> Hübner (Lep.: Pyralidae), is a significant global pest of stored products, particularly in temperate regions. This study investigated the impact of various temperatures (25, 50, 55, and 60 °C) over different durations (5, 10, 15 and 20 min) on the mortality and cuticle layer of third instar <em>P. interpunctella</em> larvae. Hexane solvent separated the cuticle layer of 3rd instar larvae treated at critical temperatures; Bis (trimethylsilyl) acetamide and Trimethylsilyl chloride were added for derivatization before injection into the GC–MS. Additionally, SEM imaging was used to observe the epicuticle surface of treated larvae under critical temperatures. The findings showed a direct relationship between increasing temperatures and the mortality rate of 3rd instar larvae, with complete mortality occurring in 20 min at 50 °C, in 15 min at 55 °C, and in just 10 min at 60 °C. Moreover, with an increase in temperature and exposure time, the weight of the larvae decreased significantly. GC–MS analysis unveiled that the waxy layer contained sixteen fatty acids within <em>P. interpunctella</em> cuticles; it was observed that as temperatures increased, there was a significant reduction in fatty acid levels. SEM imaging also revealed that rising temperatures led to a dramatic decrease in cohesion within the epicuticle layer; altering its physical and chemical structure caused dehydration, ultimately leading to death. These results suggest that utilizing critical temperatures for short durations can effectively control <em>P. interpunctella</em> populations.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 3","pages":"Article 102309"},"PeriodicalIF":1.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002156","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
Effects of the area of source habitat and habitat connectivity on soybean pod borer damage: Implications for area-wide management 源生境面积和生境连通性对大豆豆荚螟危害的影响:对全区域管理的影响
IF 1.1 3区 农林科学
Journal of Asia-pacific Entomology Pub Date : 2024-08-10 DOI: 10.1016/j.aspen.2024.102310
Hideto Yoshimura , Jyunichi Nagamine , Tomoko Nakashima , Ken Tabuchi
{"title":"Effects of the area of source habitat and habitat connectivity on soybean pod borer damage: Implications for area-wide management","authors":"Hideto Yoshimura ,&nbsp;Jyunichi Nagamine ,&nbsp;Tomoko Nakashima ,&nbsp;Ken Tabuchi","doi":"10.1016/j.aspen.2024.102310","DOIUrl":"10.1016/j.aspen.2024.102310","url":null,"abstract":"<div><p>The soybean pod borer, <em>Leguminivora glycinivorella</em> (Matsumura), is an important soybean pest that reduces both quality and yield in Asia, and chemical control is used irrespective of the damage risk. The pest population density increases at continuously cropped soybean fields (hereafter, source habitat). The present study would contribute to proposing pest management options matched to the damage risk by clarifying the surrounding landscape structures where damage is likely to increase. First, we clarified the relationship between the probability of grain damage and the source habitat within a 350 m radius of the new or continuously cropped soybean fields. The habitat area surrounding continuous soybean fields positively influenced the probability of grain damage but did not detect a significant effect in new soybean fields. Secondly, we clarified the relationship between the probability of grain damage and habitat connectivity in continuous soybean fields. Well-managed fields with high connectivity consistently showed low damage risk. Meanwhile, damage risk varied in fields with low connectivity, indicating that damage is unlikely to occur because soybean pod borers are difficult to invade. However, once invaded, the damage could be extensive. Considering these results, one possible new control system will allow the spatiotemporal variation in the number of insecticide applications. The present study likely contributes to understanding the relationship between soybean pod borer injury and landscape structure, which is important for area-wide pest management.</p></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 3","pages":"Article 102310"},"PeriodicalIF":1.1,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985212","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
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