Evaluation of Trichoderma spp. against Wirestem Disease of Cauliflower Caused by Rhizoctonia solani

The biological effectiveness of twenty-eight native isolates Trichoderma along with two known species (Trichoderma viride and harzianum) were tested against Rhizoctonia solani using dual culture technique. Of them, seven the in pot under net-house conditions wirestem disease cauliflower caused by R. solani. Inhibitory effects on statistically very significant for all Trichoderma. Thirteen exhibited more than 90% bio-control index twenty-three had or at par T. harzianum. In an in-vitro trial, isolate from Dhankuta (Pakhribas) was most effective as evident highest 6 days after incubation. Similar to this, in-vivo experiment, contributed less plant canopy area, root length shoot circumference attributes. significantly dry matter biomass while there a highly difference reduction severity. harzianum control