ISSN: 3048-7250 
Suman Lata Yadav, Dr. Nidhi Lal*
Department of Botany, St. Andrew’s College Gorakhpur.
* Corresponding author
Abstract–
An attempt was made to study the biocontrol efficacy of Trichoderma viride on different growth parameter of cauliflower crop. Three type of treatments– Soil, Seed and Foliar in combination with farm yard manure were given. The result was recorded at fifty days, after sowing and sixty days after sowing and at the time of harvest (70 days). The best result was recorded in seed treatment followed by foliar and soil treatment in comparison with control (without treatment). Therefore from present investigation it is concluded that an eco-friendly biopesticide (T.viride) is very easy to use and having no adverse effect on crop, animals or people. They can be applied to prevent and control several pathogenic fungi and grow healthy crop. T. viride can be used as a biocontrol agent as it is low cost and profitable dependent system to all people and animals and it also helps in conserving the natural resource as well as different biodiversity.