SUCCESSION OF INSECT PESTS IN STORED GROUNDNUT AND THEIR CONTROL

Abstract

The experiment was conducted in the central laboratory of Sher-e-Bangla Agricultural University (SAU), Dhaka – 1207, Bangladesh during the period from July 2017 to June 2018 to study the succession of insect pests in stored groundnut and their control. Six treatments such as T g/200 g seed, T g/200 g seed, T 3 1 = Sevin 85 SP @ 0.5 g/200g seed, T = Neem leaf powder @ 1.0 g/200 g seed, T 5 2 4 = Red chili powder @ 1.0 = Turmeric powder @ 1.0 = Coriander seed powder @ 1.0 g/200 g seed of groundnut and T Control (untreated) were used in this experiment. Treated and untreated containers were kept open in laboratory for natural infestation of insect pests. Two insect pests namely dried fruit beetle (Carpophilus hemipterous) and red flour beetle (Tribolium castaneum) were found to attack in stored groundnut seeds. Dried fruit beetle population was higher upto 315 days after storage. Sevin 85 SP provided the best protection against these pests in storage compared plant materials. Among the four plant materials, neem leaf powder gave better results for protection of groundnut seed in storage compared to other three plant materials.

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