Evaluation of fungicides and biopesticides for the control of Fusarium wilt of tomato

摘要

Fusarium wilt is highly destructive soil borne pathogen in tomato. Current study was carried out to evaluatecommercially available fungicides and bio-fungicides in-vitro and in-vivo, for their efficacy against Fusarium oxysporumf.sp. lycopersici. Firstly four fungicides were evaluated under laboratory conditions. Three promising fungicides, twobiopesticides and Trichoderma harzianum were further applied both in greenhouse and field experiments. During in-vitrostudies PDA amended with fungicides with different treatments @ 1% almost completely inhibited the growth of Fol withvarying degree of success whereas Nativo being the most effective treatment with 98% reduction in growth as compared tocontrol. Nativo significantly reduced the disease incidence (32.75 %) at concentration of 1%. While Poly-beta-hydroxylbutyric-acideffectively promoted the tomato growth. Maximum reduction in disease (30.14 %) was expressed by Nativofollowed by Teagro (25.06 %) under field conditions. Nativo was found to be the most effective fungicide for managementof Fol both In vitro and In vivo.Further field evaluations of the fungicides are required.