Nandagopal, V.; Gedia, M. V.
Author Affiliation :
National Research Center for Groundnut, Ivnagar Road, Post Box No. 5, Junagadh 362 001 (Gujarat), India.
Karnataka Journal of Agricultural Sciences
Residual toxicity of neem [Azadirachta indica] oil alone and in combination with some pesticides was studied against 2 spider mites (Tetranychus hypogaea and T. cinnabarinus) on groundnuts in India. Residual toxicity of synthetic insecticides (phosphamidon and endosulfan) persisted for a few hours and gave 45-50% mortality of T. hypogaea. The crude neem oil at 2% gave the highest LT50 values of 156 h for T. hypogaea and 182.4 h for T. cinnabarinus. Mixture of synthetic insecticides and kelthane with neem oil resulted in higher LT50 than alone.
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Indexing terms for this abstract:
Organism descriptor(s) :
Arachis hypogaea, arthropods, Azadirachta indica, plants, Tetranychus cinnabarinus
acaricidal properties, arthropod pests, botanical insecticides, endosulfan, groundnuts, insecticidal plants, insecticides, multipurpose trees, neem extracts, pesticidal plants, pesticides, pests, phosphamidon, plant pests, toxicity, trees, woody plants
neem, peanuts, pest arthropods, pesticide crops, Tetranychus hypogaea
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Broader term(s) :
Arachis, Papilionoideae, Fabaceae, Fabales, eudicots, angiosperms, Spermatophyta, plants, eukaryotes, Azadirachta, Meliaceae, Sapindales, Tetranychus, Tetranychidae, Prostigmata, mites, Acari, Arachnida, arthropods, invertebrates, animals, Commonwealth of Nations, Developing Countries, South Asia, Asia