Journal of Pest Science最新文献

Effects of acclimation on the cold tolerance of the pepper weevil

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-04-02 DOI: 10.1007/s10340-025-01887-1

D. Catalina Fernández, Sherah L. VanLaerhoven, Brent J. Sinclair, Roselyne M. Labbé

{"title":"Effects of acclimation on the cold tolerance of the pepper weevil","authors":"D. Catalina Fernández, Sherah L. VanLaerhoven, Brent J. Sinclair, Roselyne M. Labbé","doi":"10.1007/s10340-025-01887-1","DOIUrl":"https://doi.org/10.1007/s10340-025-01887-1","url":null,"abstract":"The pepper weevil, Anthonomus eugenii, is a subtropical pest of pepper plants that appears to be expanding its geographic range as evidenced by its increasing occurrence and persistence in field and greenhouse pepper crops in temperate areas. Here, we investigated the cold tolerance of A. eugenii and its potential for winter survival in temperate areas by comparing non-acclimated (24 °C) and cold acclimated (10 °C) adults and larvae for their cold tolerance strategy, supercooling points, and lower lethal thermal limits. Acclimated larvae were treated with silver iodide to assess their survival in the presence of an ice nucleator. Survival of non-acclimated adults was measured following exposure to 0 °C for an extended period. We also tested whether non-acclimated adults and larvae could survive winter at three outdoor sites in southwestern Ontario (agricultural field, adjacent to unheated building, and inside an unheated building). Adults and larvae died at freezing and even pre-freezing temperatures. Acclimation improved adult cold tolerance, decreasing the LT50 by 3 °C, with half of the non-acclimated adults surviving around 6 days at 0 °C. External inoculation increased larval supercooling points (SCPs), but did not improve cold tolerance. In winter field studies, survival was evident only in the first month, but no insect survived afterwards at any of the overwintering sites. We conclude that A. eugenii is chill-susceptible, and winter temperatures will restrict outdoor establishment in temperate areas, but that high winter temperatures in empty greenhouses encourage indoor establishment.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"60 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766849","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

Unveiling the nematotoxic effect of Streptomyces spp. against the root-knot nematode, Meloidogyne enterolobii in guava

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-04-01 DOI: 10.1007/s10340-025-01889-z

Janani Mani, Jayakanthan Mannu, Prabhu Somasundaram, Devrajan Kandasamy, Thamizh Vendan Ragupathy, Harish Sankarasubramanian, Seenivasan Nagachandrabose

{"title":"Unveiling the nematotoxic effect of Streptomyces spp. against the root-knot nematode, Meloidogyne enterolobii in guava","authors":"Janani Mani, Jayakanthan Mannu, Prabhu Somasundaram, Devrajan Kandasamy, Thamizh Vendan Ragupathy, Harish Sankarasubramanian, Seenivasan Nagachandrabose","doi":"10.1007/s10340-025-01889-z","DOIUrl":"https://doi.org/10.1007/s10340-025-01889-z","url":null,"abstract":"Guava production in India faces significant challenges due to the invasion of the root-knot nematode Meloidogyne enterolobii. Biological control using metabolite-producing Streptomyces spp. offers a better alternative to synthetic nematicides for managing nematode populations in soil and roots. The native Streptomyces rochei isolated from nematode suppressive guava rhizosphere demonstrated complete inhibition of M. enterolobii egg hatching (100%) and juvenile mortality (100%) compared to other native species. Further, secondary metabolites produced by S. rochei were profiled using gas chromatography/mass spectrometry (GC/MS) analysis and molecular docking experiments were carried out with the key protein Me col-1 (collagen gene) of M. enterolobii. Notably, bioactive compounds of S. rochei such as oxymatrine, melezitose, 2(3H)-furanone, 5-hexyldihydro, 2-nonadecanone 2, and cyclohexane exhibited nematicidal activities. Among them, oxymatrine (− 6.7 kcal/mol), melezitose (− 6.5 kcal/mol), and 2(3H)-furanone (−4.4 kcal/mol) showcased the highest binding affinity against Me col-1. A glasshouse experiment was conducted to study the nematode suppressive effect of cell-free culture filtrate extracts of S. rochei GA, Streptomyces spp. GHS-3 and GHRS-5 on guava seedlings inoculated with M. enterolobii. Guava plants treated with S. rochei GA suppressed M. enterolobii parasitism with a 79.1% reduction in the number of egg masses, and promoted plant growth by 75%. This study highlights the nematotoxic potential of biomolecules produced by S. rochei GA as a promising alternative to synthetic nematicides for the management of M. enterolobii.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"2017 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143745606","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

Ecological risks of cadmium-contaminated non-prey food on three Trichogramma egg parasitoids

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-27 DOI: 10.1007/s10340-025-01888-0

Jie Wang, He-Xi Huang, John T. Trumble, Chengxing Wang, Zheng-Yang Zhu, Lian-Sheng Zang, Nicolas Desneux, Ning Di, Yuan-Xi Li

{"title":"Ecological risks of cadmium-contaminated non-prey food on three Trichogramma egg parasitoids","authors":"Jie Wang, He-Xi Huang, John T. Trumble, Chengxing Wang, Zheng-Yang Zhu, Lian-Sheng Zang, Nicolas Desneux, Ning Di, Yuan-Xi Li","doi":"10.1007/s10340-025-01888-0","DOIUrl":"https://doi.org/10.1007/s10340-025-01888-0","url":null,"abstract":"Floral resources such as nectar are essential for increasing survival and population growth of synovigenic parasitic wasps in agroecosystems. Although the bottom-up effect of cadmium (Cd) has been identified as a major ecological force influencing multitrophic interactions of synovigenic parasitoids, information on the direct effects of Cd-contaminated floral resources on the fitness of natural enemies which might impact their fitness and effectiveness are still lacking. In this study, we assessed the performance of three commonly used Trichogramma species exposed to Cd-contaminated sucrose solutions. Female survival, longevity, the female/male adult proportion, and F1 emergence rate of T. japonicum were not affected by Cd concentrations. However, a decline in the survival rate of females, their longevity, and female/male adult proportion were observed for T. dendrolimi at high Cd concentration. No significant differences in female/male adult proporation and longevity of T. ostriniae were found at wide Cd concentration ranges. Our results suggest that Cd-contaminated nectar resources can negatively affect performance of some Trichogramma spp., indicating Cd contamination in nectar would directly reduce the potential value of these species in IPM programs. These results not only increase our understanding of interspecific variations in synovigeny of Trichogramma, but also suggest that releases of T. japonicum and T. ostriniae rather than T. dendrolimi should be considered at Cd-contaminated sites.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"57 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143712740","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

Gut bacteria in potato tuberworm (Phthorimaea operculella) populations are dominated by Enterococcus spp. and these play a significant role in carbohydrate metabolism and host growth

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-24 DOI: 10.1007/s10340-025-01882-6

Mengdi Zhang, Junjie Yan, Jorge A. Zavala, Subba Reddy Palli, Guy Smagghe, Yulin Gao

{"title":"Gut bacteria in potato tuberworm (Phthorimaea operculella) populations are dominated by Enterococcus spp. and these play a significant role in carbohydrate metabolism and host growth","authors":"Mengdi Zhang, Junjie Yan, Jorge A. Zavala, Subba Reddy Palli, Guy Smagghe, Yulin Gao","doi":"10.1007/s10340-025-01882-6","DOIUrl":"https://doi.org/10.1007/s10340-025-01882-6","url":null,"abstract":"The pivotal role of gut microbiota in maintaining the insect host’s well-being has been extensive researched. Here, our research objective was to determine the microbes in the gut of larvae of the potato tuberworm (Phthorimaea operculella) and to investigate the role they play in the host development, metabolism, gut structure integrity and immune deficiency (Imd). Shotgun metagenomics sequencing from specimens collected in major potato-producing regions in China, and principal coordinate analysis revealed that the geographic location explained much of the variance in bacterial composition, but Enterococcus mundtii was dominant in all samples. KEGG analysis demonstrated that carbohydrate metabolism was the major function of the P. operculella’s gut microbiome. Subsequently, with the use of artificial diet supplemented with antibiotics, the gut microbes were removed, especially the bacteria of the Enterococcus genus were significantly decreased. Typically, insects fed with antibiotics showed a lower carbohydrate metabolism, survival rate, longer developmental period and poorer fecundity. Metabolomics analysis also confirmed that the antibiotics treatment had a striking impact on the metabolic profile in the gut, especially for starch degradation. In addition, the gut homeostasis with its microbiota composition, metabolism and gut structure was damaged in the antibiotics-treated insects. In summary, our data provide evidence that a complex interaction exists between the microbiome of the gut and the metabolism and structure integrity of the host insect, which is essential for its growth and development. These findings enhance our comprehension of the microbiota's function in insects and facilitate the advancement of environmentally friendly management strategies for this pest.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"20 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695674","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

Toxicity of Melaleuca rhaphiophylla essential oils against Sitophilus zeamais and Sitophilus oryzae

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-24 DOI: 10.1007/s10340-025-01885-3

Rubens Candido Zimmermann, Ana Marta Schafaschek, Adélia Maria Bischoff, Matheus Beger, Julia Sant’ana, Sofia Bin de Macedo, Milena Ielen, Carlos Eduardo Nogueira Martins, Sarah da Costa Amaral, Rilton Alves de Freitas, Alessandra Benatto, Carolina Gracia Poitevin, Henrique da Silva Silveira Duarte, Joatan Machado da Rosa

{"title":"Toxicity of Melaleuca rhaphiophylla essential oils against Sitophilus zeamais and Sitophilus oryzae","authors":"Rubens Candido Zimmermann, Ana Marta Schafaschek, Adélia Maria Bischoff, Matheus Beger, Julia Sant’ana, Sofia Bin de Macedo, Milena Ielen, Carlos Eduardo Nogueira Martins, Sarah da Costa Amaral, Rilton Alves de Freitas, Alessandra Benatto, Carolina Gracia Poitevin, Henrique da Silva Silveira Duarte, Joatan Machado da Rosa","doi":"10.1007/s10340-025-01885-3","DOIUrl":"https://doi.org/10.1007/s10340-025-01885-3","url":null,"abstract":"The Melaleuca genus has insecticidal activity against agricultural pests. In particular, Melaleuca rhaphiophylla essential oil (MREO) showed high toxicity against some stored product weevils in a short period. Therefore, the present study aimed to evaluate the sublethal dose and the effect on biochemical markers of MREO and its emulsion (MREM) against Sitophilus zeamais and Sitophilus oryzae. The emulsion was prepared by combining hydroxypropyl methylcellulose (HPMC) (2 wt%) with MREO to concentrations of 39.18 and 25.61 μL of substance L−1 of air for S. zeamais and S. oryzae, respectively. The insecticidal activity of both MREO and MREM was evaluated by the fumigation method, followed by the determination of Glutathione S-Transferase (GST), esterase-α, esterase-β, superoxide dismutase (SOD), acetylcholinesterase (AChE) activities, and lipid peroxidation (LPO). The MREO caused a mortality rate above 25%, with an increase of AChE and LPO for both species, there was altered esterase-α for S. zeamais and inhibition of GST, esterase-α, esterase-β and SOD activity for S. oryzae. Meanwhile, the MREM caused a mortality rate of less than 1.5%, with an increase in GST, SOD, and LPO enzymes for both species, and an increase in the enzymatic activity of esterase-α for S. oryzae. Therefore, we concluded that MREO demonstrated higher insecticidal activity, while MREM caused continuous toxicity at fragmented doses caused by emulsion exposure, stimulating detoxification and resistance mechanisms.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"33 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677658","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

Adaptation of a physiologically based demographic model for predicting the phenology of Cryptoblabes gnidiella with validation in Italian vineyards

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-13 DOI: 10.1007/s10340-025-01868-4

Marta Corbetta, Giovanni Benelli, Renato Ricciardi, Vittorio Rossi, Andrea Lucchi

{"title":"Adaptation of a physiologically based demographic model for predicting the phenology of Cryptoblabes gnidiella with validation in Italian vineyards","authors":"Marta Corbetta, Giovanni Benelli, Renato Ricciardi, Vittorio Rossi, Andrea Lucchi","doi":"10.1007/s10340-025-01868-4","DOIUrl":"https://doi.org/10.1007/s10340-025-01868-4","url":null,"abstract":"The increasing spread and destructiveness of the honeydew moth, Cryptoblabes gnidiella (Lepidoptera: Pyralidae: Phycitinae), requires an effective pest management approach, in which the application of insecticides is based on the presence and abundance of the insect in the vineyard. Pest monitoring, however, is challenging because of the difficulties in identifying eggs and larvae. Forecasting models, particularly physiologically based demographic models (PBDMs), are helpful tools in the management of several agricultural insect pests. No PBDMs of note are available for C. gnidiella to date. Herein, we adapted a PBDM for Lobesia botrana to C. gnidiella by using literature data on insect developmental rates to fit temperature-dependent equations, and we validated the model by using independent data consisting of weekly male catches in pheromone traps placed in 16 wine-growing areas of Central and Southern Italy, between 2014 and 2022. Comparison of model predictions versus trap data of adults provided R2 = 0.922, CRM (coefficient of residual mass, a measure of the model tendency to overestimate or underestimate the observed values) = 0.223, and CCC (the concordance correlation coefficient) = 0.924. Goodness-of-fit results showed that the model was capable of correctly predicting C. gnidiella flights, with a little tendency to underestimate real observations. Overall, our results make the model quite realistic and potentially useful to support insect monitoring activities and decision-making in crop protection, at least in the contexts in which the model was validated. Further validations should be carried out to test the model ability to also predict the presence of C. gnidiella juvenile stages.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"56 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608023","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

The nematode egg parasitic fungi, Niesslia gamsii and Polydomus karssenii, protect tomato against Meloidogyne hapla by priming and regulating the plant defence system

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-13 DOI: 10.1007/s10340-025-01872-8

Milad Rashidifard, Wolfgang Maier, Samad Ashrafi

{"title":"The nematode egg parasitic fungi, Niesslia gamsii and Polydomus karssenii, protect tomato against Meloidogyne hapla by priming and regulating the plant defence system","authors":"Milad Rashidifard, Wolfgang Maier, Samad Ashrafi","doi":"10.1007/s10340-025-01872-8","DOIUrl":"https://doi.org/10.1007/s10340-025-01872-8","url":null,"abstract":"Plants employ different defensive strategies to limit or avoid nematode attacks, including the recruitment of beneficial microorganisms that can support plants by enhancing their defence mechanisms. We investigated the effect of the two nematode egg parasitising fungi, Niesslia gamsii and Polydomus karssenii, on nematode suppression on tomato using greenhouse experiments. Their potential against Meloidogyne hapla was evaluated by analysing direct parasitism and the expression of plant defence-related genes, through quantitative reverse transcriptase PCR. Niesslia gamsii and P. karssenii were originally isolated from naturally infested eggs of the cereal cyst nematode Heterodera filipjevi, and their nematode pathogenicity was proven through Koch’s postulates. Fungal treatments with N. gamsii and P. karssenii reduced by 32–31% M. hapla egg numbers per root system, respectively. Both treatments also significantly lowered the nematode reproduction rate (Rf value) when compared to the control. Both fungi affected the nematode root invasion by limiting penetration of M. hapla second-stage juveniles (J2) into tomato roots, 3 and 7 days after inoculation. The results showed a substantial effect of both fungi on inducing defence responses in tomato plants towards M. hapla. Pre-treatment with N. gamsii and P. karssenii led to the expression of different marker genes associated with pathogen response pathways, including salicylic and jasmonic acid/ethylene-regulated defensive. These findings suggest that N. gamsii and P. karssenii could prime the plant host for enhanced defence upon nematode attack.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"117 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608024","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

When size matters: a morphological measurement that informs on the potential pest control function by soil arthropod communities

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-13 DOI: 10.1007/s10340-025-01879-1

Eugène Maurey, Ronan Marrec, Théo Brusse, Gaëtane Le Provost, Vincent Le Roux, Benjamin Bergerot, Gaël Caro

{"title":"When size matters: a morphological measurement that informs on the potential pest control function by soil arthropod communities","authors":"Eugène Maurey, Ronan Marrec, Théo Brusse, Gaëtane Le Provost, Vincent Le Roux, Benjamin Bergerot, Gaël Caro","doi":"10.1007/s10340-025-01879-1","DOIUrl":"https://doi.org/10.1007/s10340-025-01879-1","url":null,"abstract":"Promoting pest control provided by soil arthropod communities can enhance sustainable agricultural production. Despite years of research aimed at predicting the pest control potential of these communities, few studies have described natural enemy communities composed of multiple taxonomic orders through a functional lens and identified traits involved in predator–prey interactions. Arthropod predator communities consist of individuals from several taxonomic orders exhibiting significant physical and behavioral differences that likely contribute differently to pest control. These inter-order differences justify the adoption of a functional approach, rather than a taxonomic one, to describe predator communities. However, there is no generalized functional trait identified to describe arthropod predator communities and predict the pest control potential by these communities. To address this knowledge gap, we reviewed 194 relationships from the literature, examining various traits and feeding characteristics for different groups of ground-dwelling arthropod predators (spiders, Coleoptera, and Chilopoda). We tried to determine whether a functional trait can be identified to explain the pest control potential across a multi-taxonomic assemblage. Each relationship was described in terms of the trait, the feeding characteristic, and the direction of the relationship in quantitative studies. Across all taxonomic groups, we consistently observed a positive relationship between predator body size and prey body size. This relationship was the most tested and the most shared among orders. Consequently, this study provides a proxy trait (body size) that can be used to predict a potential of predation and therefore inform on the pest control provided by multi-taxonomic assemblages of predators. ","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"21 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143608022","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

Diapause in parasitoids: a systematic review

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-07 DOI: 10.1007/s10340-025-01876-4

Zhen Shen, Liang-De Tang, Nicolas Desneux, Lian-Sheng Zang

{"title":"Diapause in parasitoids: a systematic review","authors":"Zhen Shen, Liang-De Tang, Nicolas Desneux, Lian-Sheng Zang","doi":"10.1007/s10340-025-01876-4","DOIUrl":"https://doi.org/10.1007/s10340-025-01876-4","url":null,"abstract":"Parasitoids are important biological control agents, which play an active role in controlling agricultural and forestry pests. The diapause of parasitoids is crucial for controlling pest populations and preserving the ecological equilibrium in natural environments. Diapause has been studied for over 80 years. To date, diapause has been studied in approximately 178 species of parasitoids, including major families such as Braconidae, Trichogrammatidae, Ichneumonidae, and Encyrtidae. Among them, at least five species including Trichogramma dendrolimi, T. cacoeciae, T. japonicum, T. brassicae, and Aphidius gifuensis, have been utilized for production and application using diapause manipulation in parasitoid rearing. The development of omics technologies has accelerated the study of the underlying mechanism, but there remains a lack of in-depth investigation. This article reviews the research progress of diapause in parasitoids, encompassing environmental and biological factors inducing diapause, biological, and physiological response after diapause, and the mechanisms involved in diapause. Additionally, the potential applications of diapause parasitoids are explored. A deeper understanding of the diapause phenomenon in parasitoids and its molecular mechanisms is sought, with the goal of offering more effective strategies for ecosystem management and agricultural production.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"30 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570463","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

Assessing the efficacy and generational stability of commercial transgenic maize resistance against key stored-product insect pests

IF 4.8 1区农林科学

Journal of Pest Science Pub Date : 2025-03-04 DOI: 10.1007/s10340-025-01880-8

J. Parsons, J. Riudavets, M. S. Lopes

{"title":"Assessing the efficacy and generational stability of commercial transgenic maize resistance against key stored-product insect pests","authors":"J. Parsons, J. Riudavets, M. S. Lopes","doi":"10.1007/s10340-025-01880-8","DOIUrl":"https://doi.org/10.1007/s10340-025-01880-8","url":null,"abstract":"Genetic resistance, particularly through transgenic Bt maize, has demonstrated high efficacy in pest control under field conditions. However, in storage conditions, maize is susceptible to different pest species, which compromises its quality. It is unknown how effectively the Bt maize functions in storage environments or if resistance is being inherited in later generations. This study investigates two commercial maize genotypes: a transgenic genotype expressing the Cry1Ab protein and its near-isoline counterpart. It utilizes commercial seeds of both genotypes (F1), along with seeds obtained from field-grown transgenic and near-isoline plants (F2), which represent the seeds stored by farmers and the agricultural industry. The aim is to assess their vulnerability to common insect pests that affect stored products. By assessing grain damage and insect population dynamics, we identify differences in resistance among these different maize genotypes and generations. Our findings show that transgenic maize exhibits strong resistance against Sitotroga cerealella but lower resistance against Sitophilus zeamais. The impact of Oryzaephilus surinamensis on both genotypes was negligible. Additionally, the resistance diminishes in the F2 generation. With S. cerealella the F2 transgenic experienced 55% more damage compared to the F1. Similarly, in the case of S. zeamais, the F2 maize produced five times more frass than the F1, highlighting a significant reduction in resistance. This research identifies the resistance characteristics of maize, highlighting the most suitable traits for assessing pest resistance in stored maize. It emphasizes the need for sustainable pest control with genetic resistance, ensuring long-term protection of stored grains, and minimizing post-harvest losses.","PeriodicalId":16736,"journal":{"name":"Journal of Pest Science","volume":"29 1","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538433","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