Kanagaratnam, P.Pethiyagoda, U.Velu, M.S.2012-02-102012-02-101983COCOS - Journal of the Coconut Research Institute of Sri Lanka1pp.7-10https://dl.nsf.gov.lk/handle/1/7461AgricultureCoconutsInsect pestsCoconut caterpillarOpisina arenosellaBiological controlBacillus thuringiensisPlant protectionEffect of four commercial preparations of Bacillus thuringiensis on Opisina arenosella WalkerArticle