Survey on the Outbreak of Fall Armyworm, Spodoptera frugiperda (J.E. Smith, 1797) (Lepidoptera: Noctuidae) and their Host Plant Preference Tested in Thailand
Keywords:survey, host range, fall armyworm, Spodoptera frugiperda, host preference
Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith, 1797) is a serious pest of global importance. First outbreak in Thailand was reported at the end of 2018.The information from host plant preference study can be used in FAW control measure. Results of survey on the outbreaks of FAW in Thailand during December 2018 - December 2019 showed that their outbreaks occurred in all maize plantation areas. Testing on plant preference of 28 food crops in the laboratory of Plant Quarantine Research Group during May 2019 to October 2020 found that maize, sorghum, sunn hemp, ginger, peanut and culantro were host plants that FAW could complete 2 rounds of its life cycle. Study on the preference for oviposition of FAW found that they could lay their eggs on ginger, napier grass, rice, sorghum, sugarcane, bitter gourd, cassava, chili, cucumber, culantro, peanuts, sunn hemp and maize. The highest number of egg clusters were found on Maize. All of the above mentioned economic crops are at risk of being attacked by FAW.
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