Reduction of the natural enemy population by deltamethrin and imidacloprid leads to the resurgence of brown plant hoppers (Nilaparvata lugens) in rice

Reduction of the natural enemy population by deltamethrin and imidacloprid leads to the resurgence of brown plant hoppers (Nilaparvata lugens) in rice | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Reduction of the natural enemy population by deltamethrin and imidacloprid leads to the resurgence of brown plant hoppers (Nilaparvata lugens) in rice Netra H, Sujay Hurali, Srikanth Barkeer, Prabhuraj A, Badariprasad P. R, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4281053/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 06 Aug, 2024 Read the published version in International Journal of Tropical Insect Science → Version 1 posted 5 You are reading this latest preprint version Abstract Brown planthopper (BPH), Nilaparvata lugens (Stal) is a monophagous and most devastating pest of rice. Application of insecticides is inevitable to control the infestation of BPH on rice crops. However, the indiscriminate use of various insecticides in rice is leading to pest resurgence. Several factors have been connected to the resurgence of brown planthoppers, especially the reduction in natural enemies and changes in plant nutrition after insecticide application. Hence, in the present study, we studied the resurgence of BPH post application of different insecticides in rice and assessed the impact of insecticides on natural enemies population during Rabi 2022-23. Among nine insecticides tested, two insecticides viz. , deltamethrin 11 EC @ 15 g a.i/ha (44.70%) and imidacloprid 17.8 SL @ 25 g a.i/ha (23.01%) significantly increased the population of N. lugens over untreated check and consequently resulted in higher BPH resurgence. A greater reduction in predatory mirid bugs and spiders was observed in the deltamethrin and imidacloprid treated groups compared to the untreated check. In conclusion, we found that deltamethrin and imidacloprid induce the BPH resurgence in rice compared to other tested insecticides and the observed resurgence was partly due to the reduction of natural enemies. Brown planthoppers Insecticide Resurgence Rice Natural enemies Full Text Cite Share Download PDF Status: Published Journal Publication published 06 Aug, 2024 Read the published version in International Journal of Tropical Insect Science → Version 1 posted Editorial decision: Minor revisions 31 May, 2024 Reviewers agreed at journal 08 May, 2024 Reviewers invited by journal 03 May, 2024 Editor assigned by journal 18 Apr, 2024 First submitted to journal 17 Apr, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4281053","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":298453567,"identity":"6fb6144b-1f34-4718-8b3e-4de4c478abe6","order_by":0,"name":"Netra H","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzklEQVRIiWNgGAWjYBACAwj1X44fRCUUEKeFsYGBgdlYsgGkxYAELYkGB5AsxQvMpZuPP66oYUswPr868cMDAwZ5frED+LVYzjmW2HjmGE+e2Y23myWADjOcOTuBgMNu5Bg2NrBJFJvdOLsBpCXB4DZBLfkfGxv+GSRunnF28w8iteQwNja2JSRu4O/dRqwtaYYzG/sOGEvc4N1mkWAgQYxfkh98bPh2QI6//+zmmz8qbOT5pQloQQAJsEoJYpWDAP8BUlSPglEwCkbBSAIA+KdJTJc0vPsAAAAASUVORK5CYII=","orcid":"","institution":"University of Agricultural Sciences Raichur","correspondingAuthor":true,"prefix":"","firstName":"Netra","middleName":"","lastName":"H","suffix":""},{"id":298453568,"identity":"37b0a4b9-6b45-440e-915b-a551cc29e944","order_by":1,"name":"Sujay Hurali","email":"","orcid":"","institution":"University of Agricultural Sciences Raichur","correspondingAuthor":false,"prefix":"","firstName":"Sujay","middleName":"","lastName":"Hurali","suffix":""},{"id":298453569,"identity":"630950bd-ea5a-4809-a61d-08f8d48e9621","order_by":2,"name":"Srikanth Barkeer","email":"","orcid":"","institution":"University of Agricultural Sciences Raichur","correspondingAuthor":false,"prefix":"","firstName":"Srikanth","middleName":"","lastName":"Barkeer","suffix":""},{"id":298453570,"identity":"7f8c6beb-4f14-4943-9d3d-7cbfd0982db4","order_by":3,"name":"Prabhuraj A","email":"","orcid":"","institution":"University of Agricultural Sciences Raichur","correspondingAuthor":false,"prefix":"","firstName":"Prabhuraj","middleName":"","lastName":"A","suffix":""},{"id":298453571,"identity":"578aee35-1fe1-4024-8434-02802ab91b8c","order_by":4,"name":"Badariprasad P. 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Application of insecticides is inevitable to control the infestation of BPH on rice crops. However, the indiscriminate use of various insecticides in rice is leading to pest resurgence. Several factors have been connected to the resurgence of brown planthoppers, especially the reduction in natural enemies and changes in plant nutrition after insecticide application. Hence, in the present study, we studied the resurgence of BPH post application of different insecticides in rice and assessed the impact of insecticides on natural enemies population during \u003cem\u003eRabi\u003c/em\u003e 2022-23. Among nine insecticides tested, two insecticides \u003cem\u003eviz.\u003c/em\u003e, deltamethrin 11 EC @ 15 g a.i/ha (44.70%) and imidacloprid 17.8 SL @ 25 g a.i/ha (23.01%) significantly increased the population of \u003cem\u003eN. lugens\u003c/em\u003e over untreated check and consequently resulted in higher BPH resurgence. A greater reduction in predatory mirid bugs and spiders was observed in the deltamethrin and imidacloprid treated groups compared to the untreated check. In conclusion, we found that deltamethrin and imidacloprid induce the BPH resurgence in rice compared to other tested insecticides and the observed resurgence was partly due to the reduction of natural enemies.\u003c/p\u003e","manuscriptTitle":"Reduction of the natural enemy population by deltamethrin and imidacloprid leads to the resurgence of brown plant hoppers (Nilaparvata lugens) in rice","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-05-09 05:20:41","doi":"10.21203/rs.3.rs-4281053/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Minor revisions","date":"2024-05-31T06:57:41+00:00","index":"","fulltext":""},{"type":"reviewerAgreed","content":"","date":"2024-05-08T04:47:46+00:00","index":0,"fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-05-03T15:06:54+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-04-18T06:15:15+00:00","index":"","fulltext":""},{"type":"submitted","content":"International Journal of Tropical Insect Science","date":"2024-04-17T05:56:34+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"international-journal-of-tropical-insect-science","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"jtis","sideBox":"Learn more about [International Journal of Tropical Insect Science](http://link.springer.com/journal/42690)","snPcode":"42690","submissionUrl":"https://www.editorialmanager.com/jtis/default2.aspx","title":"International Journal of Tropical Insect Science","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"cd0570e0-5455-4546-a906-73c6b38c9d27","owner":[],"postedDate":"May 9th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2024-08-12T15:58:49+00:00","versionOfRecord":{"articleIdentity":"rs-4281053","link":"https://doi.org/10.1007/s42690-024-01306-5","journal":{"identity":"international-journal-of-tropical-insect-science","isVorOnly":false,"title":"International Journal of Tropical Insect Science"},"publishedOn":"2024-08-06 15:56:54","publishedOnDateReadable":"August 6th, 2024"},"versionCreatedAt":"2024-05-09 05:20:41","video":"","vorDoi":"10.1007/s42690-024-01306-5","vorDoiUrl":"https://doi.org/10.1007/s42690-024-01306-5","workflowStages":[]},"version":"v1","identity":"rs-4281053","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4281053","identity":"rs-4281053","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}