Effect of neem based plant products and plant extracts against anthracnose of chilli (Capsicum annuum L.)

Abstract

The anthracnose of chilli is one of the most devastating disease. C. capsici was isolated from disease samples and the isolate of C. capsici was confirmed on the basis of disease symptoms, morphological and cultural characteristics. The various factors, viz., nutritional, physical and toxicological factors showed wide variation on growth and sporulation of C.capsici. Antagonistic ability of different isolates of Trichoderma harzianum was tested by dual culture technique. Among them T. harzianum isolate 5 was found most effective in inhibiting the growth of C. capsici. The toxicological factors like Neem Seed Kernel Extract (NSKE) was found most effective in inhibiting the growth of C. capsici compared with neem oil, combined application (neem, garlic, ginger, onion plant extracts) and garlic bulb extract.