Efficacy of Bioagents, Neem Based Plant Products and Plant Extracts Against Colletotrichum capsici

Antagonistic effect of different isolates of Pseudomonas fluorescens and Trichoderma isolates was tested by dual culture test against Colletotrichum capsici. Among them, Trichoderma harzianum isolate 3 and P. fluorescens isolate 5 were found most effective in inhibiting the pathogen under in vitro conditions. Similarly, five neem based plant products viz., Neemgold, Achook, Biotas, Tricure, and Neemazal were tested to see their performance in inhibiting the radial growth and sporulation of C. capsici in vitro by poisoned food technique. The neem based plant product, Biotas completely inhibited the growth and sporulation of C. capsici. Among the plant extracts, datura leaf, onion and garlic bulb extracts completely inhibited the growth and sporulation of C. capsici.