Bioefficacy of Medicinal Plant Extract and Pathogenicity of Verticillium wilt of Soybean (Glycine max (L.) Merr.)

Oil yielding crop Soybean also known as miracle crop as well as leguminous and pulse producing crop. It is second most important oil producing crop grown in both kharip and rabbi season also called as cash coop. The presence and significance of phytopathogenic fungal pathogen of soybean wilt was assessed. Gunny bags were used for collection of sample and soybean wilted plant or sample brought in laboratory. Near about 6 different fungal species were isolated from infected sample i. e. Verticillium lecanii. F. oxysporum. F. solani, Alternaria alternata, Phoma spp and Tricoderma spp but Verticillum species occurring as a dominate species among 6 species. Fungi isolated by PDA petridish method. Verticillium lecanii is the entomophilies fungal pathogen also known as Lecticillum lecani. Pathogenicity was calculating by using Kochs postulates. Using of the synthetic chemical fungicides created different types of environmental and ecological problems. Different types of medicinal plant extract used for the treatment to petridish containing fungal pathogen in different concentration (10 %, 15 %& 20 %) plant extract.