Bio-control of Fusarium oxysporum f. sp. coriandrii, causing coriander wilt by using Trichoderma species

The wilt of coriander caused by Fusarium oxysporum f. sp. coriandrii is one of the most serious disease which causes severe yield loss up to 80 to 90 percent under favourable conditions and the disease shows deadly symptoms. The samples of coriander showing wilt symptoms were collected from different districts of Maharashtra state. Antagonistic activity of Trichoderma species were examined by using dual culture technique on Czapek Dox Agar medium. The fungal antagonists reduced mycelial growth of Fusarium oxysporum f. sp. coriandrii. It is clear that Trichoderma sp., has very great potential of antagonistic activity against Fusarium oxysporum f. sp. coriandrii. The Trichoderma pseudokoningii was gave maximum inhibition of both sensitive and resistant isolates of Fusarium oxysporum f. sp. coriandrii.