MANAGEMENT· OF FUSARIUM AND NEMIC WILTS OF TOMATO BY GRAFTING, SOIL AMENDMENT, CHEMICALS AND BIO-AGENT

Abstract

Efficacy of eight selected treatments viz. Grafting (Ti), Furadan 5G (T2), Bavistin (T3), Cupravit (T4), Trichoderma harzianum (Ts), Sawdust (T6), Khudepana (T7) and Control (T8) were assessed against Fusarium . oxysporum f.sp. lycopersici and Meloidogyne incognita for management of wilt diseases of tomato during winter season of 2005-2006 at the farm, allotted for the Department of Plant Pathology, Sher-e-Bangla Agricultural University (SAO), Dhaka. Significant differences were observed among the treatments in terms of wilt incidence, root gall incidence, plant growth and fruit yield. Application of Sawdust (T6), Furadan 5G (Ts) arid Grafting (Ti) showed the highest effect against the wilt pathogens where no wilt and gall incidence were observed even at 85 days after transplanting. The plant growth was influenced ahd fruit yield were increased by 206.67%, 115.12% and 103.66%, respectively for Sawdust (T6), Grafting (TI) and Furadan 5G (T2) over control. Bavistin (T3), Trichoderma harzianum (Ts) and Khudepana (T7) also gave better performance against the disease, while Cupravit (T4) showed least performance in comparison to control. Cost analysis showed that Sawdust resulted the highest BCR (8.57) followed by grafting (7.65) and Furadan 5G (7.16).