Management of anthracnose of cotton (Gossypium spp.) caused by Colletotrichum capsici in vitro by chemicals and bioagents

摘要

An attempt was made to see the efficacy of different chemicals and bioagents for the management of anthracnose of cotton. The experiment was conducted in Department of Plant Pathology, CCS Haryana Agricultural University, Hisar during 2009-2010. Results revealed that carbendazim and salicylic acid at 500 and 1000 ppm concentration gave 100 and 51.51 per cent growth inhibition of Colletorichum capsici. Among bioagents Trichoderma viride (88.00%) was found most effective in inhibiting the growth of thepathogen followed by Pseudomonas fluorescens (86.00%). Copper oxychloride among the conventional fungicide and magnesium sulphate among the non conventional chemicals gave significantly less growth inhibition. As compared to other fungicides all conventional fungicides gave maximum growth inhibition at 500 ppm concentration.