PJB-2020-443
EFFICACY OF DIFFERENT FUNGICIDES ON POWDERY MILDEW DISEASE CAUSED BY OIDIUM MANGIFERAE ON DIFFERENT MANGO VARIETIES
Abdul Qayoom Majeedano
Abstract
The purpose of this study was to investigate the efficacy of different fungicides on Mango powdery mildew. The experiment was conducted on four different varieties, viz. Sindhri (V1), Siroli (V2), Dasehri (V3), and Chunsa (V4) grown in four different mango orchards located in Tando Allah Yar, Pakistan. A total of four fungicides, i.e., Cabriotop at Ghaffar Bachani Agriculture Farm (Farm 1), Correct at Shah Agriculture Farm (Farm 2), Nativo at Hyder Shah Fruit Farm (Farm 3) and Topas at Anwar Bachani Agriculture & Fruit Farm (Farm 4) were applied to evaluate their performance by determining disease incidence percent (DI %) and disease severity index (DSI) for susceptibility/resistance of different varieties in order to study the efficacy of different fungicides on Mango powdery mildew caused by Oidium mangiferae. Therefore, the response of Correct, Nativo and Topas applied fungicides to the treatment was approximately same when they were applied to Farms 2, 3 and 4, which were less than the control as 62.57 reduction percent, followed by Cabriotop (25.1 percent) with 62.113 reduction percent over control when they were applied at Farm 1. Compared with the control, all the fungicides showed good control effect, the incidence rate was between 51.7 and 84.6 percent. Before and after spraying results were recorded. After spraying all fungicides on four common varieties and farms, the (DI %) of the control was the lowest (24.9) and the highest (65.49 percent), it was 61.866 reduction percent less than the control.
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