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Journal of Entomology

Year: 2006  |  Volume: 3  |  Issue: 4  |  Page No.: 325 - 330

Bioefficacy of Spiromesifen (Oberon®) 240 SC against Coconut Eriophyid Mite Aceria guerreronis Keifer and Determination of Residues

A. Suganthi, K. Ramaraju, S. Kuttalam and S.Chandrasekaran

Abstract

Bio efficacy of spiromesifen (Oberon®) 240 SC was tested against coconut eriophyid mite, Aceria guerreronis Keifer in comparison with recommended insecticide, triazophos 40 EC. Spiromesifen was applied as spot application (crown spraying) at 1, 2, 3, 4 mL L-1 and triazophos at 5 mL L-1 per tree. Observations recorded at 7, 15 and 30 days after spraying showed that spiromesifen at the rate of 4 mL L-1 was significantly superior than triazophos and control, while spiromesifen at the rate of 3 mL L-1 and triazophos at the rate of 5 mL L-1 were equally effective in reducing the mite population. The residue levels in coconut water and kernel samples collected on 0, 1, 3, 5, 10, 15, 30, 45 and 60 days after third spray were found to be below detectable level.

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