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An investigation was carried out to determine the efficacy of some organic materials to manage anthracnose (Colletotrichum capsici) of chilli (Capsicum annuum L.) under natural field condition at Bangladesh Agricultural University, Mymensingh, Bangladesh. Plant extracts of neem (Azadirachta indica), mahogany (Swietenia mahagoni), koromcha (Carissa carandas) and garlic (Allium sativum) applied as foliar spray, singly or in combination to find out their efficacy and profitability compared with control (no spray) and chemical fungicide Ridomil 50 WP (as a positive control). All the treatments controlled the disease significantly providing higher yield compared to control. As chemical, the combined application of neem, mahogany and garlic extracts also showed significant impact on disease reduction as well as on yield of chilli. Relatively, this organic cocktail gave a higher benefit (BCR = 3.97) with minimum production cost and this approach is proposed to the chilli-growing farmers to mitigate the chilli anthracnose. So, organic combination might be a better option to control anthracnose of Chilli rather than chemical control as it is cost-effective and environment friendly.

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A field experiment was conducted to investigate the effect of some management practices to minimise jute yellow mosaic virus disease. The management practices were employed at natural condition and placed randomly with four replications. The treatments were spraying malathion 57 EC, rouging and field sanitation, top dressing of nitrogenous fertiliser, mulching with straw and untreated control. The highest percentage of mosaic incidence was recorded in control and the lowest incidence was recorded in top dressing of nitrogenous fertiliser. Among the treatments, top dressing of nitrogenous fertiliser showed the best performance in terms of increasing yield (3.05 t/ha). The second highest was obtained in rouging and field sanitation which was statistically similar to spraying malathion 57 EC. The best gross margin ($379.02/ha) and increase of gross margin (63.00%) compared to control were achieved in top dressing of nitrogenous fertiliser with the highest benefit-cost ratio (4.84). However, the treatments were found significantly profitable compared to the control indicating the usefulness of the cultural practices in integrated disease management programme for healthy and profitable jute cultivation.