Pest Management Science最新文献

{"title":"Lipopeptide‐loaded mesoporous silica nanoparticles suppress root rot disease of soybean (Glycine max L.): modulating metabolite profile and endophytic bacterial community","authors":"Haodong Wang, Yangping Sun, Qi Liu, Mengci Ma, Long Hu, Gehong Wei, Chun Chen","doi":"10.1002/ps.70281","DOIUrl":"https://doi.org/10.1002/ps.70281","url":null,"abstract":"BACKGROUNDSoybean production is severely affected by the soil‐borne phytopathogenic, <jats:italic>Fusarium oxysporum</jats:italic>, which causes root rot disease. Artificial nanoplatforms have attracted attention as a sustainable strategy to promote crop growth and protection.RESULTSIn this study, mesoporous silica nanoparticles (MSNs) loaded with lipopeptide (Lip), referred to as Lip@MSNs, were synthesized with a diameter of approximately 50 nm and a Lip loading capacity of 22.40 wt%. Lip@MSNs demonstrated potent antifungal activity against <jats:italic>F. oxysporum</jats:italic>, inducing cell membrane disruption, permeability alterations, nuclear damage, and subsequent cell death. Pot experiment showed that Lip@MSNs significantly reduced the severity of soybean root rot disease by 43.10% while enhancing plant growth and root development. Metabolomic analysis revealed that Lip@MSNs modulated critical metabolic pathways, including zeatin and pyrimidine metabolic pathways in roots. Furthermore, Lip@MSNs recruited beneficial endophytic bacteria, such as antagonistic genera (<jats:italic>Sphingomonas</jats:italic>, <jats:italic>Variovorax</jats:italic>, and <jats:italic>Streptomyces</jats:italic>) and growth‐promoting genera (<jats:italic>Rhizobium</jats:italic>, <jats:italic>Ensifer</jats:italic>, and <jats:italic>Nocardioides</jats:italic>). Correlation analysis highlighted the role of these bacteria in nitrogen fixation and phytohormone production (e.g., <jats:italic>trans</jats:italic>‐zeatin), contributing to reduced root rot disease severity and improved plant health.CONCLUSIONThese findings demonstrate that the silicon‐based delivery system could serve as an effectively tool to control soil‐borne phytopathogenic diseases and promote the development of sustainable agriculture. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"100 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145228934","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}

{"title":"Design, synthesis, structural optimization, and biological activity research of quinazolinone alkaloid isaindigotone.","authors":"Sijia Liu,Yubin Xu,Mingpeng Li,Zhiting Zhao,Aidang Lu,Hongying Tang,Qingmin Wang,Ziwen Wang","doi":"10.1002/ps.70290","DOIUrl":"https://doi.org/10.1002/ps.70290","url":null,"abstract":"BACKGROUNDPlant viruses, which are among the most devastating pathogens, cause enormous losses to agricultural industries worldwide and continue to threaten global food security. Current antivirals like ribavirin and ningnanmycin show limited efficacy against plant viruses, underscoring the need for more potent agents. Quinazolinone alkaloids play a vital role in drug discovery.RESULTAfter an extensive literature survey, we explored a highly efficient and straightforward synthetic route to access isaindigotone. Starting from commercially available deoxyvasicinone, a two-step sequence delivered the target isaindigotone in an overall yield of 60%. A series of isaindigotone derivatives were designed, synthesized, and evaluated for their bioactivities. We found that these compounds have good to excellent antiviral activities against tobacco mosaic virus (TMV). Most of these compounds exhibited higher anti-TMV activities than ribavirin. Alkaloid isaindigotone and its derivatives 2b and 2f displayed significantly higher inhibitory effects (half-maximal inhibitory concentration (IC50): 120-195 μg mL-1) than ningnanmycin (IC50: 220 μg mL-1), thus emerged as novel antiviral candidates. We selected 2f for further antiviral mechanism studies and found that 2f can inhibit viral assembly by interacting with the TMV coat protein (CP). Molecular docking results further confirmed that these compounds can interact with CP through hydrogen bonds. These compounds also demonstrated broad-spectrum antifungal activities. In particular, compound 4a displayed significant antifungal activity (IC50: 1.14 μg mL-1) against Pyricularia grisea. The preliminary action mechanism research proved that 4a can destroy the cell membrane of pathogens.CONCLUSIONThe natural product isaindigotone and its derivatives were synthesized and evaluated for their anti-TMV and fungicidal activities. Some compounds with good activities emerged as new antiviral and anti-fungal candidates. This study provides a reference for the application of isaindigotone alkaloids as new pesticides. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"32 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229257","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}

{"title":"RNAi-mediated gene silencing of a 26S proteasome subunit increases mortality of the Japanese beetle Popillia japonica.","authors":"Giulia Lucetti,Simona Abbà,Gabriele Pesavento,Elena Fanelli,Francesca De Luca,Elia Battagini,Stefano Cazzaniga,Matteo Ballottari,Diletta Frizzon,Nicola Mori,Luciana Galetto","doi":"10.1002/ps.70265","DOIUrl":"https://doi.org/10.1002/ps.70265","url":null,"abstract":"BACKGROUNDThe Japanese beetle Popillia japonica (Coleoptera: Scarabaeidae) is a highly polyphagous quarantine invasive species causing severe crop damages. Its management is based on broad-spectrum insecticides and sustainable alternatives are needed. Strategies based on RNA interference (RNAi) emerged in crop protection and we aimed to explore its use to control P. japonica.RESULTSNine genes of P. japonica were selected as lethal candidates, based on previous wide-genome screenings on other coleopterans. To avoid off-target effects, genes showing over 80% identity with pollinator homologues were excluded and P. japonica double-stranded RNAs (dsRNAs) were designed in the least conserved portions according to alignments with Apis mellifera. When incubated in P. japonica midgut juice, dsRNAs were not degraded. Injection and plant-mediated feeding were used to deliver dsRNAs to larvae and adults. Five targets were tested, and two genes were selected as the most effective in increasing mortality, namely regulatory particle non-ATPase 6 subunit (RPN) and shibire_dynamin-like protein (SHI). A significant transcript reduction up to 21 days (RPN: 3-5 fold-change silencing) after dsRNA injection indicated that effective gene silencing occurred, as also supported by sequencing of small RNA libraries. In adults, RNAi-mediated depletion of RPN transcript reduced survival, either when insects were injected or mass-fed on vine leaves dsRNA-treated.CONCLUSIONA subunit of the 26S proteasome was indicated as promising RNAi target for dsRNA-based insecticide against the Japanese beetle. The data pave the way for the possible use of RNAi approaches to control this pest, proactively waiting for the European Union approval of exogenously applied dsRNAs. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"82 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229258","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}

{"title":"Treating tomato seeds with rutin generates jasmonate-dependent long-persisting priming of broadspectrum resistance to herbivores.","authors":"Rong Zhang,Yujie Li,Fengbo Yang,Chengjia Zhang,Hong Tong,Yuting Yang,Jing Wang,Peng Liang,Zhaojiang Guo,Qingjun Wu,Youjun Zhang,Qi Su","doi":"10.1002/ps.70277","DOIUrl":"https://doi.org/10.1002/ps.70277","url":null,"abstract":"BACKGROUNDAs an environmentally friendly crop protection strategy, seed priming effectively induces plant immune responses against future stresses. Our previous study demonstrated that treating tomato (Solanum lycopersicum) seeds with the bioflavonoid rutin enhances resistance against the phloem-feeding whitefly (Bemisia tabaci). However, whether rutin seed treatment confers resistance to multiple herbivores and the mechanistic basis of defense priming in seeds remain unclear. Here, we investigated whether rutin seed treatment enhances tomato resistance against herbivores representing major feeding guilds and explored the role of phytohormone signaling in regulating defense priming.RESULTSWe found that seeds were receptive to the bioflavonoid rutin, which established a primed state for herbivore resistance, resulting in a long-term increase in resistance to caterpillars, whiteflies and spider mites. Importantly, this induced resistance was not accompanied by an inhibition of plant growth and development. This primed resistance persisted for at least 8 weeks in plants grown from treated seeds, was associated with the accumulation of jasmonates in treated seeds and was dependent on the jasmonic acid (JA) signaling pathway. Moreover, we demonstrated the key role of high levels of jasmonates in rutin-treated tomato seeds for the induction of defense priming against herbivores by transgenic overexpression of the jasmonate biosynthetic gene during seed development.CONCLUSIONOur results conclude that rutin seed treatment promotes jasmonate accumulation in seeds and primes JA-dependent anti-herbivore defenses in tomato without cost to growth. Harnessing seed priming may, therefore, provide new avenues for better crop protection in future agriculture. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"75 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209322","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}

{"title":"Repurposing isoxazoline insecticides to control Varroa destructor populations in honey bee colonies.","authors":"Julia St Amant,Sanghyeon Kim,Zhilin Li,Daniel R Swale,Cameron J Jack","doi":"10.1002/ps.70285","DOIUrl":"https://doi.org/10.1002/ps.70285","url":null,"abstract":"BACKGROUNDThe devastating honey bee (Apis mellifera) pest, Varroa destructor, has developed resistance to commonly used synthetic acaricides, such as amitraz, tau-fluvalinate, and coumaphos. To find new active ingredients that may be useful in reducing V. destructor populations in honey bee colonies, we examined the acute toxicity of isoxazoline insecticides that are toxic to ectoparasites, such as ticks and fleas.RESULTSHere, we evaluated the toxicity of afoxolaner, fluralaner, sarolaner, and lotilaner to V. destructor and honey bees using direct application methods. Fluralaner (median lethal dose (LD50) = 0.07 ng/V. destructor) was the most toxic isoxazoline insecticide and only 2× less toxic than amitraz (0.04 ng/V. destructor), but 25,600× more toxic than coumaphos (1789 ng/V. destructor). Sarolaner (selectivity ratio = 0.3) was much more toxic to honey bees than to V. destructor, while afoxolaner toxicity was equal to mites and bees. Fluralaner and lotilaner were 123× and 2× more toxic to V. destructor than to honey bees. In addition to describing isoxazolines as a putative chemical class to control V. destructor, we tested the potency of fluralaner against the firing frequency of V. destructor central neurons. Exposure to 30 μm fluralaner led to reversal of GABA inhibition with a significant increase of nerve firing when compared to GABA firing rates.CONCLUSIONThese data suggest that fluralaner represents a potential candidate for V. destructor control in colonies due to its high toxicity to V. destructor and its relatively low toxicity to honey bees. Additionally, methodological details for electrophysiological recordings on V. destructor central nervous system (CNS) firing rates can be used to advance the development of new miticides. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"98 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209323","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}

{"title":"New coumarin–cinnamic acid hybrids: potent FtsZ inhibitors as alternatives to bactericides for controlling bacterial infection","authors":"Si‐Yue Ma, Lin‐Li Yang, Jing‐Sha Yang, Ya Xiao, Guo‐Qing Wang, Hong‐Wu Liu, Yue Ding, Xiang Zhou, Li‐Wei Liu, Zhi‐Bing Wu, Song Yang","doi":"10.1002/ps.70272","DOIUrl":"https://doi.org/10.1002/ps.70272","url":null,"abstract":"BACKGROUNDFtsZ, namely filamenting temperature‐sensitive mutant protein Z, is pervasive and highly conserved in the division process of prokaryotic organisms, and thus recently has come to be regarded as a key target for the development of innovative antibacterial agents. However, although its application in pesticides remains limited, initiation of a FtsZ‐targeted antibacterial discovery strategy could help to prevent bacterial infection and drug/pesticide resistance.RESULTSTo discover a new FtsZ inhibitor, the attractive molecular hybridization strategy of introducing isopropanolamine linker was used in which representative active scaffolds for FtsZ inhibitors including coumarin and cinnamic acids were selected to devise new coumarin–cinnamic acid hybrids. Interestingly, compound 4d exhibited excellent <jats:italic>in vitro</jats:italic> antibacterial activity toward <jats:italic>Xanthomonas oryzae</jats:italic> pv. <jats:italic>oryzae</jats:italic> [<jats:italic>Xoo</jats:italic>, median effective concentration (EC<jats:sub>50</jats:sub>) = 1.45 mg L<jats:sup>−1</jats:sup>], which was better than that of the reference reagent bismerthiazol (EC<jats:sub>50</jats:sub> = 33.08 mg L<jats:sup>−1</jats:sup>), and demonstrated commendable <jats:italic>in vivo</jats:italic> anti‐<jats:italic>Xoo</jats:italic> activity (protective activity: 50.46% for 200 mg L<jats:sup>−1</jats:sup>). Furthermore, mechanistic assays including fluorescence imaging, guanosine triphosphatase (GTPase) activity assay, fluorometric titration assays, Fourier transform infrared spectroscopy and computational simulations co‐elucidated that compound 4d may selectively act on the guanosine 5′‐triphosphate (GTP) binding site, further suppress the GTPase activity [median inhibitory concentration(IC<jats:sub>50</jats:sub>)value of compound 4d of 170.55 μ<jats:sc>m</jats:sc>), thereby inhibiting bacterial reproduction. Toxicity studies accentuated the favorable pharmacological profile and low plant toxicity of compound 4d.CONCLUSIONThis study provides a new paradigm for extending new bactericides to efficiently control bacterial infections by targeting FtsZ. The work provides new insights for addressing bacterial drug resistance and overcoming bottlenecks in the development of novel pesticides. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"37 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203231","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}

{"title":"Sensitivity of IrishPyrenopeziza brassicae populations to methyl benzimidazole carbamate (MBC), quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides","authors":"Diana E Bucur, Yong‐Ju Huang, Bruce DL Fitt, Steven Kildea","doi":"10.1002/ps.70263","DOIUrl":"https://doi.org/10.1002/ps.70263","url":null,"abstract":"BACKGROUNDLight leaf spot, caused by <jats:italic>Pyrenopeziza brassicae</jats:italic>, is an economically damaging disease of winter oilseed rape in north‐western Europe. Disease control relies upon the use of foliar fungicides, with the azoles the main class of fungicides being used. Changes in the sensitivity to azole fungicides have been reported for <jats:italic>Pyrenopeziza brassicae</jats:italic> populations across Europe. Therefore, there is a need to investigate the use of fungicides having alternative modes of action for control of this disease, although methyl benzimidazole carbamate (MBC) fungicides are no longer approved for use in the European Union (EU). Little information is available on the sensitivity of <jats:italic>Pyrenopeziza brassicae</jats:italic> to fungicides with alternative modes of action, with only a small number of Irish <jats:italic>Pyrenopeziza brassicae</jats:italic> isolates previously screened against such fungicides. This study investigated the sensitivity of three collections of Irish <jats:italic>Pyrenopeziza brassicae</jats:italic> isolates (representative collection, 2019 collection and 2020 collection) to MBC, quinone outside inhibitor (QoI) and succinate dehydrogenase inhibitor (SDHI) fungicides.RESULTSDifferent levels of sensitivity of <jats:italic>Pyrenopeziza brassicae</jats:italic> populations to the MBC, QoI and SDHI fungicides were detected. Three phenotypes of sensitivity (sensitive, moderately insensitive, insensitive) to MBC were identified, with the sensitive phenotype still predominant in Ireland. No differences in sensitivity to QoI and SDHI fungicides were found and no <jats:italic>cytb</jats:italic> mutations associated with reduced sensitivity to QoI fungicides were detected by sequencing.CONCLUSIONThe results suggest that, despite different levels of sensitivity to MBC fungicides, no sensitivity shifts to QoI or SDHI fungicides were identified in Irish <jats:italic>Pyrenopeziza brassicae</jats:italic> populations. However, continuous fungicide sensitivity monitoring and integrated management strategies using fungicides with different modes of action are necessary to sustain long‐term effective control of <jats:italic>Pyrenopeziza brassicae</jats:italic>. © 2025 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"114 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145203232","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}

{"title":"Efficacy of phosphine (PH3) under hypoxia: pilot and industry-scale trials for controlling strongly resistant stored product pests in rice.","authors":"Rajeswaran Jagadeesan,Kai Hart,Manoj K Nayak,Justin Tumambing,Paul Ebert","doi":"10.1002/ps.70202","DOIUrl":"https://doi.org/10.1002/ps.70202","url":null,"abstract":"BACKGROUNDPhosphine (PH3) is a slow-acting fumigant, therefore control of resistant insect pests requires high concentrations of 540-1080 ppm (0.75-1.5 g m-3) over long exposure periods of up to 21 days. This is difficult to achieve under many practical storage conditions; hence, there is a need to enhance the toxicity of PH3, so that resistant insects can be eradicated in a shorter fumigation time. Co-fumigation with PH3, along with other atmospheric gases (carbon dioxide (CO2) and nitrogen (N2)), enhances PH3 toxicity in laboratory-scale experiments; however, this information has not been translated into practical pest management protocols for adoption by the industry.METHODOLOGYThe effectiveness of co-fumigation with PH3 plus two of the atmospheric gases (N2 and CO2) was evaluated in fumigation chambers and commercial-scale rice storage silos. Strongly PH3-resistant insects of mixed life stages of key grain insect pests, Rhyzopertha dominica, Tribolium castaneum, Sitophilus oryzae, and Cryptolestes ferrugineus were placed in cages inside the mini-fumigation chambers or silos containing freshly milled rice grains. Fumigations were performed with currently registered application rates of PH3 (0.75-1.5 g m-3) in combination with selected concentrations of CO2 (5-30%) and N2 (90-98%)/low oxygen (O2, 5-10%) over a short exposure period of 4 days. Test insect cages were retrieved after venting, and the effectiveness of the hypoxic fumigation was evaluated in terms of per cent mortalities of adults and progeny.RESULTS AND CONCLUSIONBoth the pilot scale and field fumigation research confirmed that the triplet mixture, PH3 0.75-1.0 g m-3 + high N2 (90-95%) + CO2 (5-20%) over 4 days was very effective against three strongly PH3-resistant species, R. dominica, T. castaneum, and S. oryzae and caused complete adult and progeny mortality. However, higher concentrations of this triplet mixture, PH3 1.5 g m-3 + high N2 (90-95%) + CO2 (30%) over 4 days was required to achieve complete mortality of adults and progeny of strongly resistant C. ferrugineus. At both the low and high co-fumigation dose rates, the required minimum effective PH3 concentrations (540-1080 ppm) were maintained over the 4-day exposure period, confirming the reliability of these rates for industrial applications. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"157 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188955","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}

{"title":"Modeling of suitable geographic areas for Striacosta albicosta in corn and dry bean crops under climate change scenarios","authors":"Poliana S Pereira, Julie A Peterson, Rodrigo S Ramos, Katharine A Swoboda Bhattarai, Marcelo C Picanço, Renato A Sarmento","doi":"10.1002/ps.70270","DOIUrl":"https://doi.org/10.1002/ps.70270","url":null,"abstract":"BACKGROUND<jats:italic>Striacosta albicosta</jats:italic> (Lepidoptera: Noctuidae) is an important pest that causes damage to corn and dry beans. This pest originally occurred only in parts of the western United States, but initiated a concerning range expansion in 1999 and is now present in eastern North America, particularly in the Great Lakes region. Consequently, evaluating the geographical distribution of this insect is very important for its management, as it helps to identify current occurrences and predict future spread into different regions of the world. We investigated areas suitable for the establishment of the pest <jats:italic>S. albicosta</jats:italic> and its hosts, under current and future climate scenarios.RESULTSThe variables that contributed most to the model were the mean annual temperature range, mean annual temperature, and precipitation of the driest month. Although the pest is currently restricted to North America, the study indicates that regions in Europe, Asia, Oceania, South America, and Africa also present suitable conditions for its occurrence. Under current conditions, 11.41% of the area was classified as suitable, whereas 8.81% was identified as highly suitable for <jats:italic>S. albicosta</jats:italic>.CONCLUSIONThis study is the first to identify regions with suitable climatic conditions for the introduction and establishment of this pest under current and future climate scenarios. These results can guide government agencies in implementing preventive measures, such as inspections and quarantines, to prevent the spread of this pest to new areas. © 2025 The Author(s). <jats:italic>Pest Management Science</jats:italic> published by John Wiley &amp; Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"362 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145188403","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}

{"title":"A pH-responsive chitosan-based nanopesticide for controlled matrine delivery and visualization of pine wood nematode.","authors":"Bi Wu,Yang Li,Zhonghui Sun,Linxi He,Yaoyu Han,Ling Ma,Jinsong Peng,Chunxia Chen","doi":"10.1002/ps.70273","DOIUrl":"https://doi.org/10.1002/ps.70273","url":null,"abstract":"BACKGROUNDPine wilt disease, caused by the pine wood nematode, causes devastating damage to forest ecosystems worldwide. Conventional chemical control methods have resulted in excessive pesticide use owing to low utilization efficiency, causing significant environmental risks. This study aims to develop a novel nanopesticide (NP) for efficient and sustainable control of pine wood nematode (PWN).RESULTSIn this research, a matrine-loaded NP (MAT@CS/CMCS NPs) was fabricated through ionic cross-linking of chitosan and carboxymethyl chitosan. The particle size and polydispersity index of this formulation were 213.3 ± 1.3 nm and 0.154 ± 0.009, respectively. Using fluorescein isothiocyanate as a fluorescent probe, the transport of CS/CMCS nanoparticles within pine trees and the uptake by PWN were visually tracked. In vitro release experiments demonstrated that MAT@CS/CMCS NPs had adjustable controlled release properties and the release rate was higher under acidic conditions. Biosafety assays demonstrated that MAT@CS/CMCS NPs were safe for HepG-2 cells. The results of transcriptome analysis suggested that the higher insecticidal activity of MAT@CS/CMCS NPs compared to matrine led to the production of more differentially expressed genes after their treatment of PWN, involving increasingly complex biological processes.CONCLUSIONThis study successfully combines nanocarrier technology with botanical pesticides to develop an effective and environmentally friendly pH-responsive NP, providing a novel and sustainable strategy for the control of PWN. © 2025 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"20 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145182645","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}