Management of reniform nematode, Rotylenchulus reniformis on okra through Streptomyces avermitilis

An experiment conducted under glasshouse conditions on the management of reniform nematode, Rotylenchulus reniformis in okra with avermectin, revealed that the plants treated with avermectin (100%) as seed treatment recorded maximum shoot length, fresh shoot weight, dry shoot weight and fruit yield. It was on par with carbofuran 3G @ 1kg a.i./ha and avermectin (75%) as seed treatment. Highest reduction in R. reniformis population was observed in plants treated with avermectin 10% as seed treatment. Avermectin treated plants also recorded significantly increased total phenol content and enzymatic activities such as peroxidase and Indole acetic acid oxidase compared to control plants.