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Results of the continuous selection with diazinon, NAC, BPMC and mixtures of two insecticides of an organophosphorus-resistant strain of the smaller brown planthopper, Laodelphax striatellus Fallen


, : Results of the continuous selection with diazinon, NAC, BPMC and mixtures of two insecticides of an organophosphorus-resistant strain of the smaller brown planthopper, Laodelphax striatellus Fallen. Botyu Kagaku 41(4): 181-185

In further investigations on resistance to insecticides in Laodelphax striatella (Fall.) (see preceding abstract, etc.), fourth- and fifth-instar nymphs from a population collected in Kagawa Prefecture, Japan, in 1970 were selected for up to 21 generations with dosages giving 70-75% mortality of diazinon, carbaryl (NAC) or BPMC (2-(1-methylpropyl)phenyl methylcarbamate) singly or in mixtures of 2 of these compounds in equal quantities.

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