Journal of Asia-pacific Entomology最新文献

{"title":"Attraction behavior of the red imported fire ant, Solenopsis invicta Buren, to candidate attractants and poisoning baits","authors":"Anandapadmanaban Gokulanathan ,&nbsp;Hyoung-ho Mo ,&nbsp;Youngjin Park","doi":"10.1016/j.aspen.2024.102347","DOIUrl":"10.1016/j.aspen.2024.102347","url":null,"abstract":"<div><div>The red imported fire ant (RIFA), <em>Solenopsis invicta</em> Buren, is native to South America and has been expanding its habitat in the United States, Asia, and Oceania through abiotic and international trade routes. Surveillance is a vital quarantine task at quarantine sites that can detect exotic pests before their introduction. However, subsequent intensive surveillance is essential to eradicate this invasive species. Understanding the RIFA response and attractant selection helps improve bait quality and effectiveness. This study assessed the attraction behavior of RIFA to candidate attractants (CA) including trail and alarm pheromones, farnesene mixture, 4-methylpyrrole-2-carboxylic acid, geranylgeraniol (GGOH), allofarnesene cis and trans mixture (AFA), 3-Ethyl-2,5-dimethylpyrazine (PYZ), and 13 commercial poisoning baits (CPBs). In terms of attraction sensitivity to CA and CPB, AFA was a potential attractant. AFA showed a 68% attraction rate for RIFA at a lower concentration compared to other pheromones. Among the CPBs, borax (3%) gel bait showed the most efficient attraction. The behavioral preferences of RIFA towards CA and CPB showed a higher attraction to pheromones than CPB. Based on these results, AFA may be used as bait to support extensive surveillance and prevent RIFA infestations.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102347"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745322","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":"Susceptibility to diamides differs in the field populations of Plutella xylostella and Spodoptera litura feeding on cole crops","authors":"K. Elakkiya ,&nbsp;M. Murugan ,&nbsp;S.V. Krishnamoorthy ,&nbsp;N. Senthil ,&nbsp;D. Vijayalakshmi","doi":"10.1016/j.aspen.2024.102341","DOIUrl":"10.1016/j.aspen.2024.102341","url":null,"abstract":"<div><div>Diamides, a new class of insecticides, have been used in Indian agriculture for more than 15 years. The severe incidence of diamondback moth (DBM), <em>Plutella xylostella</em> L., and leafworm, <em>Spodoptera litura</em> Fab. on cabbage/cauliflower drew intensive applications of diamides in Southern India. The former is an oligophagous (specialist), while the latter is a polyphagous (generalist) pest. In India, DBM resistance to diamides has surfaced, but not for <em>S. litura</em>. The field populations collected from cauliflower and cabbage in Tamil Nadu’s various agro-climatic zones were tested for diamides resistance, <em>viz.,</em> flubendiamide and chlorantraniliprole. The results revealed high resistance to flubendiamide and chlorantraniliprole in DBM field populations (98.32 to 54.52 mg/L, respectively) but not in <em>S. litura</em> (4.84 to 0.84 mg/L). Resistance fold in both pests were high for chlorantraniliprole rather than flubendiamide, and the KRI population stood top in resistance. The Resistance folds to flubendiamide (121.38) and chlorantraniliprole (227.16) got multi-folded for DBM when matched against reference susceptible population (SUS-I). Analysis of detoxifying enzymes (MFO, GST, CarE) in highly resistant DBM populations after sub lethal diamide exposures showed GST over-expression for up to 24 h, while none of the tested enzymes consistently expressed in <em>S. litura.</em> Further, there was a point mutation at the ryanodine receptor binding site (G4946E) in <em>P. xylostella</em>, which was absent in <em>S. litura.</em> Oligophagy seems to favour resistance build-up in DBM, while polyphagy downplays resistance development in <em>S. litura.</em> Populations of DBM may require effective resistance management intervention to address metabolic detoxification and point mutation.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102341"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745323","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":"Revised Hyrcanus group phylogeny based on ITS2 resolution","authors":"Ui Wook Hwang ,&nbsp;Ashraf Akintayo Akintola","doi":"10.1016/j.aspen.2024.102346","DOIUrl":"10.1016/j.aspen.2024.102346","url":null,"abstract":"<div><div>This study presents a meticulous reassessment of the phylogenetic relationships within the Hyrcanus Group of <em>Anopheles</em> (Anopheles) mosquitoes, a group of substantial medical and epidemiological importance. These vectors are responsible for the transmission of various diseases, including malaria, posing a significant public health challenge in many regions. This research employs advanced molecular techniques, specifically focusing on the Internal Transcribed Spacer 2 (ITS2) region, to enhance taxonomic resolution within this complex group of mosquitoes. The ITS2 region has proven to be a valuable molecular marker for differentiating closely related species and refining our understanding of their evolutionary history. A total of 857 ITS2 sequences of Hyrcanus group members were retrieved from the GenBank after using specific search keywords. 83 out of the initial retrieved sequenced were then finally selected and utilized in the analysis based on sequence quality and length. Sequences retrieved represent 22 out of the 25 members of the Hyrcanus group. This study clarified the confusion surrounding the taxonomic placement and synonymy of each member of the Hyrcanus group using the latest available molecular ITS2 sequence data through Neighbor Joining (NJ), Maximum Likelihood (ML), and Bayesian Inference (BI) phylogenetic tree analysis. The work also revised the taxonomic groupings based on morphological characters observed within the group and evaluated the limitations within the classification based on morphology and the challenges using molecular ITS2 data. A refined understanding of the Hyrcanus group phylogeny provides a foundation for more precise and tailored approaches to combat malaria and other vector-borne diseases in South Korea.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102346"},"PeriodicalIF":1.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142756637","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":"RNA sequencing analysis uncovers the role of aldehyde oxidase TcAOX2 in regulating toxic substance susceptibility in the red flour beetle, Tribolium castaneum","authors":"Shanshan Gao ,&nbsp;Kui Liu ,&nbsp;Shuang Xue ,&nbsp;Can Zhou ,&nbsp;Guangyan Zhang ,&nbsp;Mengyi Guo ,&nbsp;Yizhuo Cao","doi":"10.1016/j.aspen.2024.102351","DOIUrl":"10.1016/j.aspen.2024.102351","url":null,"abstract":"<div><div>Aldehyde oxidase (AOX) is a class of metabolic enzymes, which can make <em>T. castaneum</em> resistant to aldehyde insecticides and thus increase the difficulty of control. In this study, we first examined the killing effect of benzaldehyde, one of the main active components of mugwort essential oil, to <em>T. castaneum</em> and demonstrated the involvement of TcAOX2 in regulating the sensitivity of <em>T. castaneum</em> to benzaldehyde. Subsequently, we identified a total of 105 differentially expressed genes relative to controls by RNA sequencing (RNA-Seq) analysis of <em>T. castaneum</em> late larvae injected with ds<em>TcAOX2</em>, including 67 up-regulated and 38 down-regulated expressed genes. Analysis and functional annotation of differentially expressed genes using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). The results showed that the expression of <em>apolipoprotein D</em>, <em>carboxypeptidase A</em>, <em>serine protease P40</em>, <em>pancreatic triacylglycerol lipase</em>, and other genes related to immunity and metabolism, their expression also decreased with the decrease of <em>TcAOX2</em> expression. The down-regulation of the expression of these genes may make <em>T. castaneum</em> less immune and less able to cope with stressful environments. This suggests that changes in <em>TcAOX2</em> gene expression may affect the expression of these metabolism- or immunity-related genes, which in turn affects <em>T. castaneum</em> sensitivity to external toxicants. In conclusion, our results provide a theoretical basis for exploring the detoxification mechanism of aldehyde oxidase in <em>T. castaneum</em> and for screening target genes in response to external stimuli.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"28 1","pages":"Article 102351"},"PeriodicalIF":1.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757664","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":"Effects of interspecific sex pheromones on the trapping efficiency of five pest species in an apple orchard","authors":"Xueli Wang ,&nbsp;Heng Su ,&nbsp;Juan Wang ,&nbsp;Jinyong Zhang","doi":"10.1016/j.aspen.2024.102344","DOIUrl":"10.1016/j.aspen.2024.102344","url":null,"abstract":"<div><div>The species <em>Grapholita molesta</em>, <em>Adoxophyes orana</em>, <em>Carposina sasakii</em>, <em>Apolygus lucorum</em>, and <em>Lithocolletis ringoniella</em> are the most important insect pests in apple orchards in China, and their outbreak cycles are partially overlapping. Sex pheromone-based pest monitoring technique is an effective tool for decision-making regarding the use of insecticides. Interactions between interspecific pheromones of pests have not been widely explored, especially of the phylogenetically distant species that have completely different pheromone components. It is unclear whether sex pheromone lures from the five pests could be applied together without compromising their individual effectiveness. To address this knowledge gap, different combinations of commercially available sex pheromone lures were placed in the same trap to evaluate the interactions of interspecific sex pheromones in the field. The annual occurrence and peak of these five pests in the experimental apple orchard were investigated, and the sex pheromone lure of <em>A. lucorum</em> had no impact on the population dynamics and trap catches of <em>A. orana</em> or <em>L. ringoniella</em>. Similarly, the sex pheromone lures of <em>A. orana, G. molesta, C. sasakii</em>, or <em>L. ringoniella</em> did not influence the presence and trap catches of <em>A. lucorum.</em> The sex pheromone lure of <em>A. lucorum</em> can be used separately or in combination with those of four other pests in apple orchards<em>.</em> The study provided a theoretical foundation for effectively managing these five pests by integrating their sex pheromone lures in orchards.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102344"},"PeriodicalIF":1.1,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704175","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":"Control efficacy of eight insecticides on Myzus persicae (Hemiptera: Aphididae) and insecticide resistance development of aphid populations collected from kimchi cabbage in South Korea","authors":"Jung-Wook Kho ,&nbsp;Joo-Young Kim ,&nbsp;Minhyung Jung ,&nbsp;Young Su Lee ,&nbsp;Doo-Hyung Lee","doi":"10.1016/j.aspen.2024.102340","DOIUrl":"10.1016/j.aspen.2024.102340","url":null,"abstract":"<div><div>Insecticide control efficacy was investigated with <em>Myzus persicae</em> (Hemiptera: Aphididae) populations collected on kimchi cabbage across South Korea, and their insecticide resistance levels were evaluated. Using a standard leaf-dip bioassay, the lethality at recommended active ingredient rate and lethal concentration 50 (LC₅₀) were acquired. Then, the resistance ratio was calculated as ratio between LC₅₀ of field population and LC₅₀ of laboratory population. Finally, regression analysis was conducted between the log-scaled resistance ratio and the lethality to address associations between the two estimators. Overall, sulfoxaflor and spirotetramat were the most effective insecticides, where &gt; 80 % lethality was observed from almost all local populations. Nevertheless, five out of 12 local populations showed the resistance ratio &gt; 5 to sulfoxaflor, suggesting resistance development to the insecticide. Imidacloprid and pyrifluquinazon also offered effective means to control <em>M. persicae</em>. However, large variations in the lethality, as well as the resistance ratio, were observed in imidacloprid. Deltamethrin was the least effective at recommended active ingredient rate yielding 20.2 to 63.2 % lethality, despite its low resistance ratio values. Finally, regression analysis revealed that there was in general significant negative correlation between the resistance level and the insecticide control efficacy in the insecticides evaluated. Moreover, the insecticide control efficacy declined with substantially varying rates among the insecticides with flonicamid, thiacloprid, and deltamethrin showing steeper slopes. These results indicate that both the current control efficacy and its projected decline regarding the resistance development should be taken into account together to formulate effective and sustainable management programs against <em>M. persicae</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102340"},"PeriodicalIF":1.1,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704176","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":"Female sex pheromone of Spodoptera frugiperda Vietnam population and a selected lure for adult monitoring in maize fields","authors":"Tran Thi Thu Phuong ,&nbsp;Takeshi Fujii ,&nbsp;Yukio Ishikawa ,&nbsp;Nguyen Duc Tung ,&nbsp;Ho Thi Thu Giang","doi":"10.1016/j.aspen.2024.102343","DOIUrl":"10.1016/j.aspen.2024.102343","url":null,"abstract":"<div><div>The fall armyworm (FAW), <em>Spodoptera frugiperda</em> (J.E. Smith) (Lepidoptera: Noctuidae), is a serious polyphagous insect pest that has a preference for maize and which can cause considerable damage to crops, resulting in significant crop losses. It is now established in many countries worldwide. Female sex pheromones play an important role in monitoring and mass trapping for the management of this insect pest. In this study, the female sex pheromone of FAW in Vietnam was analyzed by gas chromatography-mass spectrometry (GC–MS). The virgin female’s pheromone gland extracts of FAW contained Z9-14:Ac, Z11-16:Ac, Z7-12:Ac, and Z9-12:Ac, with ratios of 87.0:12.0:0.6:0.4 (Hanoi) and 84.0:15.0:0.6:0.4 (Phutho). During the field test, the synthetic pheromone blends of three components (Z9-14:Ac, Z11-16:Ac, and Z7-12:Ac) at natural proportions of the local populations (87.3:12.0:0.7 and 84.0:15.0:1.0) and two components (Z9-14:Ac and Z7-12:Ac) (99:1) were found to be more attractive to FAW male moths. Pheromone traps with these optimal lures can be used to monitoring the population of FAW adults in maize fields. Pheromone lures and traps can be researched and developed as part of an integrated pest management for FAW in Vietnam.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102343"},"PeriodicalIF":1.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704177","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":"Understanding life cycle and identification of larval host plant of lesser-known butterfly Truncate Imperial Cheritrella truncipennis from Sikkim Himalaya, India","authors":"Dorjee Tshering Lepcha,&nbsp;Sailendra Dewan,&nbsp;Iswar Kumar Chettri,&nbsp;Bhoj Kumar Acharya","doi":"10.1016/j.aspen.2024.102342","DOIUrl":"10.1016/j.aspen.2024.102342","url":null,"abstract":"<div><div>The North-East Himalayan region of the Indian subcontinent is enriched with high butterfly diversity. However, information on life history and larval host plants is still scanty for the majority of the butterflies in the region. Here we provide a detailed account of the life history of the lesser-known butterfly Truncate Imperial (<em>Cheritrella truncipennis</em>) from Upper-Hathidunga, Gyalshing District, Sikkim, a north-eastern state of India and part of the Himalaya biodiversity hotspot. We also provide a first account of its larval host plant <em>Smilax lanceifolia.</em> We conducted regular field visits in the study area to observe adult butterflies and locate the ovipositing sites. Subsequently, rearing of eggs and larva to their adulthood stage was conducted in the captive condition. The butterfly took 68 days to complete its entire life cycle (eggs to eclosion). The high survival rate of larvae indicates that captive breeding may be an alternative strategy for the conservation of Truncate Imperial. The study provides valuable information that may be required for detailed ecological studies and formulating regional conservation program. However, ex-situ efforts alone may not replicate the survival strategies needed in the wild (as natural habitats experiences various threats) and should only complement in-situ conservation approaches.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102342"},"PeriodicalIF":1.1,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704174","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":"Nanoformulation of imidacloprid insecticide with biocompatible materials and its ecological and physiological effects on wheat green aphid, Schizaphis graminum Rondani","authors":"Roya Ahmadpour ,&nbsp;Hooshang Rafiee Dastjerdi ,&nbsp;Ali Golizadeh ,&nbsp;Aziz Habibi Yangjeh ,&nbsp;Zahra Abedi ,&nbsp;Vahid Mahdavi","doi":"10.1016/j.aspen.2024.102332","DOIUrl":"10.1016/j.aspen.2024.102332","url":null,"abstract":"<div><div>Nanoformulation of imidacloprid was prepared using the biocompatible polymer of polyethylene glycol (PEG). TEM image showed that the spherical nanoparticles were 50–150 nm. The lethal concntrationof 30 percent (LC₃₀) and 50 percent (LC₅₀) of the insecticide and its nanoformulation studied on adult female aphids were 21.46 and 58.56 mg a.i./L for pure insecticide, and 3.79 and 4.94 mg a.i./L for nanoformulated insecticide, respectively. The results of the sublethal effect test (LC₃₀) of this insecticide showed that nymphal developmental in nanoimidacloprid (5.55 days) was higher than control (4.22 days). The results showed that the insecticide treatments significantly reduced the demographic characteristics of <em>Schizaphis graminum.</em> The intrinsic rates of increase (<em>r</em>) values of aphids in control, insecticide treatment and its nanoformulation were 0.421, 0.315 and 0.29, respectively. The results of evaluating the effect of the studied insecticide on the specific activity of beta-esterase and glutathione S-transferase showed that there was no significant difference in the activity of this enzymes between the control and the insecticide treatment and its nanoformulation. Based on the obtained results, it can be concluded that after conducting additional tests, the insecticide nanoformulation can be used due to its effectiveness in lower concentrations in the management of sucking pests such as aphids.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102332"},"PeriodicalIF":1.1,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655928","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":"Influence of phenolic acids on the lethal and sublethal effects of LdMNPV against spongy moth larvae, Lymantria dispar (Lepidoptera: Lymantriidae)","authors":"Xiao-Li Wang ,&nbsp;Li Han ,&nbsp;Ying Zhang ,&nbsp;Li-Qing Duan","doi":"10.1016/j.aspen.2024.102339","DOIUrl":"10.1016/j.aspen.2024.102339","url":null,"abstract":"<div><div>The multicapsid nucleopolyhedrovirus of <em>Lymantria dispar</em> (Lepidoptera: Lymantriidae) (LdMNPV) is a baculovirus capable of causing viral epizootics. LdMNPV must disintegrate in the alkaline midgut, releasing virions that pass through the peritrophic matrix and infect midgut columnar cells. Ingested material has the potential to influence early stages of infection. Host plant induced resistence lead to the increase of phenolic acid and may influence the activity of LdMNPV. In order to evaluate the lethal and sublethal effects of phenolic acids on the spongy moth larvae infected with LdMNPV, artificial diets containing or not containing chlorogenic acid (CH), tannic acid (TA), salicylic acid (SA) and syringic acid (SY) were used to rear the spongy moth larvae inoculated with 92 OBs/μL LdMNPV. The results turned out the lethal effect caused by SYV (SY + LdMNPV) was high. SY played a synergistic effect on LdMNPV against spongy moth larvae assessed by CTF (co-toxicity factor). SA and TA showed an antagonistic effect and CH showed additive effects. Larvae treated by CH, CHV, TA or TAV suffered long duration of the 3rd and the 4th instar and no one survive to the 5th instar stage, inferring that CH and TA inhibited the development of spongy moth larvae. SY, SA, SYV and SAV caused remarkable sublethal effect on spongy moth survivor. Fecundity of the survivor decresed and egg hatching rates were significantly reduced. The hatching rate of SYV was only 46.4 %, about half of CK. Assessing from both the lethal and sublethal effect, SY may be a potential synergist of LdMNPV against spongy moth larvae, improving prevention and control effectiveness of LdMNPV in spongy moth management.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"27 4","pages":"Article 102339"},"PeriodicalIF":1.1,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656296","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}