LABORATORY EVALUATION OF NEEM SEED EXTRACT AND OTHER PLANT EXTRACTS AGAINST GRAM POD BORER, HELICOVERPA ARMIGERA (HÃœBNER)
1Punjab Agricultural University, Ludhiana, 141004 (Punjab)
2Rajmata Vijaya Raje Scindhia Agriculture University, Gwalior 474004 (Madhya Pradesh)
e-mail: neha_sharma429@yahoo.com
NEHA SHARMA1 AND N.S. BHADAURIA
Water and ethanol extracts of margosa seed, margosa leaf and other plant extracts at 1000 and 2000 ppm concentration were tested against larvae of H. armigera under laboratory conditions. Higher concentration of ethanol extract of margosa seed was found most effective in reducing the consumption of food followed by other extracts. The larval mortality among different extract ranged from 10.0 to 35.0 percent as against 5.0 percent in control. Among the plant extracts maximum mortality (40percent ) was recorded in higher concentration of ethanol extract of margosa seed followed by night jasmine and datura.