ISSN: 3048-7250 
Hemant Kumar Chaturvedi*, Professor. Nidhi Lal**
*Department of Botany, St. Andrew’s College Gorakhpur
** Corresponding Author
Abstract –
This experiment was conducted in research field of St. Andrew’s College Gorakhpur during winter season of 2021-2022 with an aim to study the different treatment of Trichoderma harzianum with FYM on size and weight of Cabbage. Three types of Treatment – soil, seed and foliar in combination with farm yard manure. The result was recorded at fifty and sixty days after sowing and at the time of harvest. The best result was recorded in foliar treatment followed by soil and seed treatment in comparison with control. Therefore from present investigation, it is concluded that, an eco-friendly biopesticide (Trichoderma harzianum) is very easy to use and having no adverse effect on crops, animals or people. They can be applied to prevent and control several pathogenic fungi and grow healthy crop. Trichoderma harzianum can be used as a biocontrol agent as it is low cost and profitable dependent system to all people and animals. Trichoderma harzianum play important role in conserving natural resource and ecologically sustainable approach.