Title: Potency of botanical extracts on management of pulse beetle (Callosobruchus chinensis L.)
Abstract: Experiments were conducted to study the efficacy of botanical extract and chemical insecticide on the germination of pulse beetle (Callosobruchus chinensis) infested seeds of black gram (Phaseolus mungo), gram (Cicer arietinum), and mung bean (Vigna radiata). Neem extract (10%) and garlic extract (10%) were used as botanical extract where as 1% sevin 85 SP was used as chemical insecticide. From the foregoing analysis here in, it was observed that neem extract treated pulse seeds were germinated into highest number of normal seedlings in comparison with garlic extract and sevin 85 SP treated seeds when one day and ten days infested seeds were taken under consideration. But there was no significant difference in producing normal seedlings among neem extract, garlic extract and sevin 85 SP in case of thirty days infested pulse seeds due to the fact that adult insect emerged and leaved the pulse seeds at this time. The germination of normal seedlings varied from pulse species to number of days of seed infestation. * Corresponding Author: Md. Ashrafuzzaman [email protected]