5-1-5-Khatun et al

USE OF PLANT EXTRACTS TO PROTECT MUNGBEAN SEEDS FROM THE ATTACK  OF Callosobruchus chinensis

Hafeza Khatun*, Afroza Sultana and Shefali Begum
*Corresponding author:  E-mail:hafezakhatun83@gmail.com

Abstract
The aim of this investigation was to determine the efficacy of four different kinds of plants extracts, garlic, onion, castor seeds and neem seeds to protect the stored mungbean seeds (Vigna radiata) from the attack of Callosobruchus chinensis. The efficacy of plant extracts were assessed at different doses (10µml, 15µml and 20µml) on the oviposition rate, adults emergence and longevity of Callosobruchus chinensis. It was found that the oviposition rate, adults emergence and longevity of Callosobruchus chinensis on mungbean seeds were reduced due to treated with garlic, onion, castor and neem seeds extracts.  In  all plant extracts of garlic, onion, castor and neem seeds their effectiveness increased with the increase of doses. Among the four different kinds of plant extracts neem seeds extract showed maximum efficacy in terms of oviposition rate, number of adult emergence and adult longevity of Callosobruchus chinensis..

Key words: Plants extract, Callosobruchus chinensis, Vigna radiata, and Oviposition



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