REPELLENT, TOXIC, AND FOOD PROTECTANT EFFECTS OF PITHRAJ, APHANAMIXIS-POLYSTACHYA EXTRACTS AGAINST PULSE BEETLE, CALLOSOBRUCHUS-CHINENSIS IN STORAGE

Ground leaves, bark, seeds, and four seed extracts of pithraj, Aphanam ixis polystachya (family Meliaceae), a locally grown plant in Banglade sh, were evaluated for their repellency, contact toxicity, and food pr otectant efficacy against adult pulse beetle (Callosobruchus chinensis L.). The seed extracts showed poor repellent effects, but high contac t toxicity to adults at 72 hr after application. The ground leaves, ba rk, and seeds provided good protection for mung beans against pulse be etles, and the seed powder greatly reduced the F1 progeny and seed dam age rates.