MANAGEMENT OF ANTHRACNOSE OF CHILLI THROUGH SELECTED FUNGICIDES AND PLANT EXTRACTS

Abstract

The effect of twelve treatments viz. Bavistin 50 WP (T1), Cupravit 50 WP (T2). Dithane M-45 (T3), Proud 250 EC (T4), Ridomil Gold (T5). Tilt 250 EC (T(l). Allamanda leaf extract (T7). Neem leaf extract (T8). Garlic extract (T9), Ginger extract (TIO)~ Onion extract (T11) and Control (T12) were tested against Colletotrichum capsici causing Anthracnose of chilli during winter season (2006-2007) at the Farm of Sher-e-Bangla Agricultural University, Dhaka. The highest seed germination (80%) was obtained from ginger extract and neem extract treated seeds in laboratory condition while the germination was 78.83o/o and 74.00%, respectively ginger and necm extract in the field condition. The efficacy of the treatments varied significantly in terms of disease incidence, disease severity and yield of chilli. Tilt 250 EC (T6), Proud 250 EC {T4), Cupravit 50 WP (T2) and Allamanda extract (T9) showed promising effect against the disease. Application of Tilt 250 EC increased 195.90% fruit yield of chilli followed by Proud 250 EC ( 177.59%) and Bavistin 50 WP (159.56%) against anthracnose disease of chilli. Cost benefit analysis showed that the application of Tilt 250 EC (T6) resulted the highest BCR (4.07) followed by Proud 250 EC (3.68). Bavistin 50 WP (3.47), Allamanda leaf extract (3.16) and Dithane M- 45 (2.95 ) compared to control.