Madras Agricultural Journal
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Studies on the management of red flour beetle, Tribolium castaneum (Herbst) in groundnut by using plant parts of milkweed plant Calotropis gigantea R.Br.

Abstract

                                Laboratory experiment was conducted to evaluate the insecticidal activity of Calotropis gigantea R.Br. plant part powders against red flour beetle, Tribolium castaneum (Herbst) on groundnut. The C. gigantea plant parts such as leaf, flower, root and stem were collected, shade dried and made in to powder form. Insecticidal activity of milkweed plant was tested against the red flour beetle on 3, 5, 7 and 9 days after treatment. The results revealed that C. gigantea whole plant powder treatment was found to be very effective causing maximum mortality at 10g dosage. Leaf, flower, stem and root powders followed the whole plant powder treatment respectively.

Key words : Milkweed plant, plant part powder, red flour beetle, groundnut, mortality

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