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ARS Home » Southeast Area » Fort Pierce, Florida » U.S. Horticultural Research Laboratory » Subtropical Insects and Horticulture Research » Research » Publications at this Location » Publication #313661
Title: Control of Scirtothrips dorsalis with foliar insecticides, 2011

Author
item KUMAR, VIVEK - University Of Florida
item KAKKAR, GARIMA - University Of Florida
item SEAL, DAKSHINA - University Of Florida
item McKenzie, Cindy
item OSBORNE, LANCE - University Of Florida

Submitted to: Arthropod Management Tests
Publication Type: Other
Publication Acceptance Date: 6/22/2015
Publication Date: 9/1/2015
Citation: Kumar, V., Kakkar, G., Seal, D.R., McKenzie, C.L., Osborne, L.S. 2015. Control of Scirtothrips dorsalis with foliar insecticides, 2011. Arthropod Management Tests.40:E14. 2p. 2015 (Report).

Interpretive Summary: In the United States, chilli thrips Scirtothrips dorsalis Hood is a newly introduced pest species of various tropical and subtropical crops that poses a significant economic threat to U.S. agriculture and trade. The current study was conducted with an objective to evaluate certain insecticides against this serious pest of vegetable production. Results showed that chemical standard Radiant, was effective on adults and immature of Scirtothrips dorsalis until 7-10 DAT. Novel insecticides such as Sivanto and Hachi Hachi also provided significant reduction in Scirtothrips dorsalis population compared to control. Belay was not found effective against Scirtothrips dorsalis.

Technical Abstract: The objective of this study was to evaluate the efficacy of several conventional and novel insecticides against a new invasive thrips pest, Scirtothrips dorsalis Hood, in pepper under greenhouse condition. The trial was conducted at Tropical Research and Education Center in Homestead, Florida in hope to find an alternative to standard effective chemistries used in thrips control. Overall Provado, Radiant, Sivanto and Hachi Hachi were the most effective in controlling Scirtothrips dorsalis population (larvae and adults) during the course of study. Actara, Assail, and Radiant showed consistent result in regulating chilli thrips (CT) larvae and provided > 90% reduction until 10 DAT. Novel chemistries such as Belay (84-100%), Hachi Hachi (88-100%), and Sivanto (74-100%), also provided effective suppression of CT larvae during the study. Coragen was found to be the least effective against Scirtothrips dorsalis larvae and no significant reduction in larval population was observed on any sampling date compared to untreated control. While evaluating different treatments for Scirtothrips dorsalis adults, Provado provided significant suppression in adults count compared to untreated control on all the sampling dates until 10 DAT, whereas Actara, Hachi Hachi, Radiant, Sivanto and Voliam Flexi were effective until DAT 7.