Author(s): Abha Vashistha and Anjula Chaudhary

Abstract: In current scenario of agriculture soil borne diseases are of great concern and these are responsible for major crop loss. There is a worldwide need to control the diseases as well as to maintain the quality and abundance of food feed and fodder for the human beings as well as cattles. To overcome this problem different approaches are used to prevent, mitigate or control the plant diseases. Besides depending on synthetic chemicals researches are still going on to search the alternative inputs of biological control. Therefore, in the present study effect of heavy metals and Trichoderma spp. on the growth of microorganism was investigated. Four phytopathogens Fusarium oxysporum, Alternaria solani, Helminthosporium oryzae and Aspergillus species. Were used against Manganese chloride, Mercuric chloride, Copper sulfate, Zinc sulfate, Cadmium sulfate and Cobalt chloride. Morphological alternations and various degree of growth inhibition were reported during this study.