Entomologia Generalis最新文献_第10页

Efficacy of Metarhizium rileyi granules for the control of Spodoptera frugiperda and its synergistic effects with chemical pesticide, sex pheromone and parasitoid Metarhizium rileyi 颗粒剂防治蚜虫的效力及其与化学农药、性信息素和寄生虫的协同作用

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-11 DOI: 10.1127/entomologia/2023/2079

Maiqun Gu, Jiaxin Tian, Yulu Lou, Jia Ran, Amr Mohamed, N. Keyhani, Stefan Jaronski, Guangmin Wang, Xuanyu Chen, Lian-Sheng Zang, Wei Zhang

引用次数: 0

The intrinsic diversity of Nezara viridula gut symbionts affects the host fitness decline promoted by primary symbiont elimination Nezara viridula肠道共生体的内在多样性影响了主共生体消除所导致的宿主体能下降

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-11 DOI: 10.1127/entomologia/2023/2224

Sofia V. Prieto, Matteo Brunetti, Giulia Magoga, Bianca Orrù, Elena Gonella, Matteo Montagna, Alberto Alma

{"title":"The intrinsic diversity of Nezara viridula gut symbionts affects the host fitness decline promoted by primary symbiont elimination","authors":"Sofia V. Prieto, Matteo Brunetti, Giulia Magoga, Bianca Orrù, Elena Gonella, Matteo Montagna, Alberto Alma","doi":"10.1127/entomologia/2023/2224","DOIUrl":"https://doi.org/10.1127/entomologia/2023/2224","url":null,"abstract":"Pentatomid insects harbour an obligate gut symbiont, vertically transmitted via egg smearing by the females. The disruption of symbiont acquisition can be exploited for pest management, by spraying the egg surface with anti-symbiont agents, yet the insect response to symbiont deprivation remains a determining aspect of the success of this strategy. Here the effect of anti-symbiont egg masses treatment was assessed in an Italian population of the southern green stink bug Nezara viridula under field and laboratory conditions. In soybean fields, N. viridula was poorly affected by treatment, whereas in laboratory, nymphs deriving from treated egg masses underwent increased mortality and symbiont abundance decline. The primary symbiont dominated the microbiome of non-treated nymphs showing low mortality. Conversely, dysbiosis was recorded in treated samples as well as in control nymphs with high mortality. Nonetheless, dysbiosis induced by treatment was not in all cases associated with high mortality, and symbiont was missing in some non-treated samples as well. Five variants of a Pantoea symbiont were found, with higher variant diversity in untreated samples with low mortality. Altogether, our results provide information about the gut microbiota dynamics in the early nymphal instars of N. viridula and suggest a still incomplete dependence on the symbiont. However, egg masses anti-symbiont treatment increased mortality, therefore symbiont-targeted control may be used against N. viridula as a supplementary tool under high pest pressure.","PeriodicalId":11728,"journal":{"name":"Entomologia Generalis","volume":"83 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138547931","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}

引用次数: 0

Combining tea saponin and matrine botanical insecticides is highly effective against fall armyworm Spodoptera frugiperda 茶皂素与苦参碱植物性杀虫剂联用防治秋粘虫效果显著

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-11 DOI: 10.1127/entomologia/2023/2120

Wei Li, Abulimiti Abudukadier, Zhiling Chen, Chong Zhan, Shichang Zhang, Jie Liu, Yao Zhao, Yu Peng

{"title":"Combining tea saponin and matrine botanical insecticides is highly effective against fall armyworm Spodoptera frugiperda","authors":"Wei Li, Abulimiti Abudukadier, Zhiling Chen, Chong Zhan, Shichang Zhang, Jie Liu, Yao Zhao, Yu Peng","doi":"10.1127/entomologia/2023/2120","DOIUrl":"https://doi.org/10.1127/entomologia/2023/2120","url":null,"abstract":"As one of the most important invasive and destructive pests in the world, the fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) reduces crop yield and causes economic loss. It is critical to find an appropriate controlling approach. This study aimed to determine the insecticidal activities of botanical insecticides (30% tea saponin, 0.6% matrine and a mixture thereof) on fall armyworm larvae, as well as the effects of sublethal concentrations of an optimal ratio of the mixture, on the survival rate, developmental duration, pupation rate, emergence rate, and body weight of fall armyworm. In addition, we evaluated the control effect of the insecticides (30% tea saponin, 0.6% matrine, optimal ratio of mixture along with 0.3% azadirachtin and 36% chlorfenapyr) and toxicity to natural enemies in ﬁeld conditions. The results showed that all botanical insecticides and mixtures were toxic, and the insecticidal bioactivity of 10:1 volume ratio mixture was the highest at 96 hours, with a median lethal concentration (LC50) of 56.561 mg/mL. Meanwhile, the sublethal concentration of a 10:1 volume ratio of the mixture significantly affected the survival rate, prolonged developmental duration and reduced emergence rates and pupal weights, but it did not affect the pupation rates of fall armyworm. Furthermore, it has harmless or slightly harmful effects on natural enemies. Our study provides a novel environmentally friendly and natural enemy-friendly approach to controlling fall armyworms.","PeriodicalId":11728,"journal":{"name":"Entomologia Generalis","volume":"13 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138540233","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}

引用次数: 0

Entomologia Generalis special contents: past, present, and future 昆虫学总论》特别内容：过去、现在和未来

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-11 DOI: 10.1127/entomologia/2023/2342

Nicolas Desneux, Giovanni Benelli, François Verheggen

引用次数: 0

Bottom-up effects of UV-B radiation on tobacco (Nicotiana tabacum)–aphid (Myzus persicae) interactions 紫外线-B 辐射对烟草（Nicotiana tabacum）-蚜虫（Myzus persicae）相互作用的自下而上的影响

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-07 DOI: 10.1127/entomologia/2023/2242

Changli Yang, Jianyu Meng, Long-Chun He, Changyu Zhang

引用次数: 0

Emamectin benzoate disrupts molting of larvae via interfering ecdysteroid biosynthesis in Spodoptera frugiperda 苯甲酸阿维菌素通过干扰蜕皮类生物合成来破坏蛙翅蝶幼虫的蜕皮过程

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-07 DOI: 10.1127/entomologia/2023/2154

Duo-Bang Niu, Hui-Wen Pang, Pei-Yun He, Wan-Na Zhang, Jing Zhang, Hai-Qun Cao, Ying-Chuan Peng, Cheng-Wang Sheng

引用次数: 0

Combination of diflubenzuron and RNAi technology to improve the control effect of Helicoverpa armigera 除虫脲与 RNAi 技术相结合提高对 Helicoverpa armigera 的防治效果

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-12-07 DOI: 10.1127/entomologia/2023/2252

Dongdong Chu, Saibo Xu, Xiang Li, Haichao Li, Xuexia Miao, Shiheng An, Ruobing Guan

引用次数: 0

Potato cultivar susceptibility to wireworms: feeding behaviour, fitness and semiochemicals-based host selection 马铃薯品种对线虫的敏感性:摄食行为、适应性和基于半化学的寄主选择

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-11-24 DOI: 10.1127/entomologia/2023/2168

Andrea Chacon Hurtado, Fanny Ruhland, Antoine Boullis, François J. Verheggen

{"title":"Potato cultivar susceptibility to wireworms: feeding behaviour, fitness and semiochemicals-based host selection","authors":"Andrea Chacon Hurtado, Fanny Ruhland, Antoine Boullis, François J. Verheggen","doi":"10.1127/entomologia/2023/2168","DOIUrl":"https://doi.org/10.1127/entomologia/2023/2168","url":null,"abstract":"Wireworms (Agriotes sp.) represent a significant global threat in agriculture as soil-dwelling insect pests. Previous field observations have indicated varying susceptibilities of different potato varieties to wireworm attacks. In this laboratory study, we used three potato varieties known for displaying contrasted levels of susceptibility: Monalisa (high), Spunta (moderate) and Charlotte (low). We tested two groups of hypotheses: (1) wireworms display higher feeding activities when fed on a susceptible variety, which is also linked to faster larval development; (2) the most susceptible varieties are also the most attractive for wireworms, which can be explained by differences in their emissions of volatile organic compounds (VOCs), that guide larval foraging behaviour. Based on the results of our bioassays, we confirm our first hypothesis: wireworms feeding activity was higher on Monalisa tuber (i.e. longer galleries, lower weight gain of tubers), and these wireworms gained more weight and size than those that fed on the Charlotte variety, after 50 weeks of feeding. Based on our behavioural assays, we found that wireworms exhibit greater attraction towards Spunta tubers as opposed to those of Monalisa and Charlotte. The volatile collection analyses reveal a complex blend of 65 VOCs from potato tubers but do not suggest significant differences across the three varieties. The volatile profiles were however different between the two tuber phenological stages considered here. This study provides insights into the mechanisms of host detection and selection by wireworms.","PeriodicalId":11728,"journal":{"name":"Entomologia Generalis","volume":"63 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138540211","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}

引用次数: 0

Frequent insecticide applications in cotton fields offset the positive impact of surrounding semi-natural habitats on in-field ladybeetle abundance 棉田频繁施用杀虫剂抵消了周围半自然栖息地对田间瓢虫数量的积极影响

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-11-24 DOI: 10.1127/entomologia/2023/2183

Yunfei Pan, Long Yang, Haining Liu, Kaitao Wang, Hainuo Wang, Haiqiang Li, Yanhui Lu

引用次数: 0

Genetic diversity and genetic differentiation pattern of Tuta absoluta across China 中国绝种兔的遗传多样性及遗传分化模式

IF 6.9 1区农林科学

Entomologia Generalis Pub Date : 2023-11-24 DOI: 10.1127/entomologia/2023/2026

Yusheng Wang, Xiaocao Tian, Hao Wang, Cristina Castañé, Judit Arnó, Suran Wu, Xiaoqing Xian, Nicolas Desneux, Wanxue Liu, Yibo Zhang, Guifen Zhang, Fanghao Wan

{"title":"Genetic diversity and genetic differentiation pattern of Tuta absoluta across China","authors":"Yusheng Wang, Xiaocao Tian, Hao Wang, Cristina Castañé, Judit Arnó, Suran Wu, Xiaoqing Xian, Nicolas Desneux, Wanxue Liu, Yibo Zhang, Guifen Zhang, Fanghao Wan","doi":"10.1127/entomologia/2023/2026","DOIUrl":"https://doi.org/10.1127/entomologia/2023/2026","url":null,"abstract":"Tuta absoluta (Meyrick) is a cosmopolitan invader and one of the most serious pests of tomato. This pest has expanded rapidly in China since it initially invaded Xinjiang in the northwest in 2017 and Yunnan in the south in early 2018. More complete knowledge of the migration patterns and genetic structure of this pest is important for implementing effective management strategies. To fill this knowledge gap, the COI gene of T. absoluta was sequenced based on nationwide routine monitoring. This study showed a new invasion into Gansu and Inner Mongolia, indicating ongoing expansion of this pest. Most populations of T. absoluta, both in China and worldwide, have high genetic homogeneity. Nevertheless, some degree of genetic variability was found in populations in southern China, especially in Yunnan. Two distinct haplogroups were distinguished, and clade A was predominant at the global level. The high level of sequence divergence indicated the possible existence of cryptic species. Furthermore, FST and analysis of molecular variance (AMOVA) revealed weak but significant differentiation between the Xinjiang northwestern group and southern group/subgroups and provides compelling evidence of the different dispersal avenues of T. absoluta in northwestern and southern China. T. absoluta likely established bridgehead populations in Yunnan and then spread rapidly throughout this province and neighboring territories in southern China. Knowledge regarding genetic diversity, population structure and dispersal pattern is valuable for improving management guidelines for this pest. Strict plant quarantines, local eradication and practical control measures are needed to solve the problem caused by T. absoluta.","PeriodicalId":11728,"journal":{"name":"Entomologia Generalis","volume":"2 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138540209","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}

引用次数: 0