Year 2022, Volume 7, Issue 2

Year : 2022
Volume : 7
Issue : 2
Authors : A. Rami HOROWITZ, Carolina GUZMZN, Dganit SADEH, Lilach Lily MONDACA, Rui SHI, Shlomo SARIG1
Abstract : Fall Armyworm (Spodoptera frugiperda) (FAW) is endemic to tropical and subtropical regions of North and South America. FAW larvae, if not well managed can cause significant yield losses to various important crops, such as maize, rice and cotton. In Israel, populations of FAW have been found since 2018 damaging many maize fields. Management of FAW relies mainly on the use of insecticides; however, this pest has evolved high resistance levels to many insecticides, worldwide. To prevent or delay the development of insecticide resistance, resistance management strategy should be employed to decrease FAW exposure to insecticides. Our study is focusing on resistance management of FAW and field resistance monitoring to main control agents along with the use of biorational-selective insecticides and other non-chemical methods. The objective of the current study was to establish a baseline susceptibility of FAW larvae to insecticides such as diamides, IGRs and Bt. We rear a reference population, without exposure to any pesticide, on artificial diet under standard controlled room conditions. To date, we have assayed various recommended insecticides against third instars of FAW. During May 2022, we have collected larvae of FAW from maize fields, located in the eastern warm valley of Israel and they were tested for their susceptibility to various insecticides. We intend to assay late-season FAW populations as well. An outcome of this study is to form an IPM-IRM strategy that will have the ability to decrease FAW exposure to insecticides and to increase the use of other environmentally-friendly pest control practices.
For citation : Horowitz, A.R., Guzmzn, C., Sadeh, D., Mondaca, L. L., Shi, R., Sarig, S. (2022). Insecticide resistance management for fall armyworm in maize fields of Israel. AGROFOR International Journal, Volume 7. Issue No. 2. pp. 20-28. DOI: 10.7251/AGRENG2202095H
Keywords : Spodoptera frugiperda, Maize, Resistance management, Biorational-selective insecticides, IPM.
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