Vol. 10, Issue 11 (2021)

Author(s):
Dushyant Kumar, Ved Ratan, Arun Kumar, Sachin Kumar Jain, Joni Kumar, Krishan Pal and Maneesh Kumar

Abstract:
Fusarium wilt are the most widespread and important diseases of tomato. Based on the disease incidence, the isolates were grouped as highly pathogenic and moderately to weakly pathogenic. Isolate FOL-2 was highly pathogenic in soil inoculated and root dip method with wilt incidence as 70.0-80.0 per cent. An experiment was conducted to check the antagonistic effect of Trichoderma species against Fusarium oxysporum f. sp. lycopersici. Minimum radial growth of Fusarium oxysporum f. sp. lycopersici (20.93 mm) was recorded with T. koningiopsis causing 60.45 percent growth inhibition followed by T. viride (55.16%). T. harzianum was least effective in reducing of mycelial growth of the test pathogen as 51.44 percent.