Journal of FARM SCIENCES, Vol 28, No 2 (2015)

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Effect of different insecticides molecules as poison bait against Spodoptera litura (Fab.) in groundnut

K.R. Shankaragouda, Somesekhar ., A. Prabhuraj, A.C. Hosamani

Abstract


The laboratory study was conducted during 2013-14, at the University of Agricultural Sciences, Raichur to evaluate the new insecticide molecules as poison bait against Spodoptera litura (Fab.) in groundnut. Two sets of insecticides (Set-1: lambda cyhalothrin 5 EC, profenofos 50 EC, chlorpyriphos 20 EC, novaluron 10 EC, methoxyfenozide 20 SC; Set-2: indoxacarb 14.5 SC, chlorfenapyr 10 SC, fipronil 5 SC, spinosad 45 SC and chlorantraniliprole 18.5 SC) along with the standard insecticidal check monocrotophos 36 SL were tested in the poison baits, at levels higher and lower than their recommended dosages for spray in the field. In each set four concentrations of five insecticide molecules were studied.  The results revealed that chlorfenapyr 10 SC at all four dosages (100, 75, 50 and 25 per cent of recommended dosage) recorded cent per cent mortality and was significantly superior over all other treatments at 72 hours after exposure of larvae to the baits followed by chlorpyriphos 20 EC, monocrotophos 36 SL and profenofos 50 EC.

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