Effect of plant extracts and time of application on incidence of anthracnose, yield and quality of mango.
Chowdhury M. N. A., Rahim M. A., Khalequzzaman K. M., Humauan M. R., Alam M. M.
Author Affiliation: Spices Research Center, BARI, Shibganj, Bogra, Bangladesh.
International Journal of Sustainable Crop Production 2 : 59-68
Abstract : An experiment was conducted in Bangladesh, from July 2002 to July 2003 to study the effect of plant extracts and time of application on the incidence of anthracnose (Colletotrichum gloeosporioides [Glomerella cingulata]), yield and quality of mango cv. Amrapali. The treatments comprised: garlic (Allium sativum) extract (T1), Bishkatali (Polygonum hydropiper) extract (T2), Lantana extract (T3), Dholkalmi extract (T4), Lime extract (T5), Nishindha extract (T6), Neem (Azadirachta indica) extract (T7); Neem + Nishindha + Garlic + Chili (T8); Dithane M-45 [mancozeb] (T9); and the control (T10). The plants were sprayed thrice, namely: before emergence of inflorescence (B1); before emergence of inflorescence + after emergence of inflorescence (B2); before emergence of inflorescence + after emergence of inflorescence + after fruit set (B3). The highest yield (5.30 t/ha) was obtained from B3 and the lowest (2.86 t/ha) was from the control. The highest number of healthy fruits (30) and yield (6.44 t/ha) was observed from Dithane M-45 and the lowest number of healthy fruits (13) and yield (2.28 t/ha) were observed from the control. The second highest number of healthy fruits (28) and yield (5.59 t/ha) were obtained with garlic extract.