Effectiveness of beta-exotoxin of Bacillus thuringiensis var. thuringiensis on the ability of Meloidogyne sp. from brinjal (Solanum melongena L.) to survive.

Beta-exotoxin produced by Bacillus thuringiensis var. thuringiensis grown in the acid hydrolysates of wheat and rice brans caused 95% and 85% mortality respectively of Meloidogyne sp. as against 72% of ß-exotoxin produced on farm yard manure within 7 days. Acid hydrolysate of wheat or rice bran and solid farm yard manure proved to be the best media for growth of B. thuringiensis var. thuringiensis.