Removal of Old Leaves and Soil Touching Unproductive Branches of Tea Bushes for Controlling Red Rust Disease in Bangladesh.

Only leaf reduction (Cultural measure), in treatment T4 [treated with removal above 15 inches (38.10 cm) from ground level], maximum yield (2185.00 kgha-1) was found resulted 21.64% more over the control. T3 [10 (25.40 cm)] and T5 [20 (50.80 gave similar response having 20 20.68% increased The lowest severity (21.38 PDI) that statistically identical to [15 a decrease trend of 58.28%, 50.26% 42.59% respectively. There is 92.99% impact reducing disease red rust 7.2 PDI for by 5 (12.70 soil level. Similarly there 81.44% increasing made tea (kg ha-1) an increase 103.01 unit In measure) one round chemical application, T13 level Carbendazim 50 WP] (2,310.00 28.61% control followed T15 T14 Copper-oxichloride 28.18 27.69% tea. Lowest (9.63 41.21% T12 WP], 77.40, 77.31 77.79% 78.24% 2.23 fungicide application. 51.76% 30.21 fungicide. From benefit cost analysis it projected received highest marginal rate return (1202.17%) 1152.17% cm). One systemic fungicides like WP this cultural practice 1034.21% 1091.42% Considering tea, viewpoint, can be concluded that, effective touching old leaves attached bushes MSK LSK pruned sections within 10