ECOFRIENDLY MANAGEMENT OF CERCOSPORA LEAF SPOT, CERSOSPORA COFFEICOLA (BERK & M.A. CURTIS) DISEASE OF COFFEE IN GULMI

Cercospora disease is a very important disease of Coffee which results in yield loss and damage to the nursery plants in early stage of growth and later emerges a brown eye spot on cherries. Studies were carried out to find out ecofriendly way of disease management strategies against Cercospora leaf spot disease of Coffee using bio-rational treatments in the year 2021. The lowest mean disease incidence was recorded in Bordeaux mixture and Trichoderma treated block (34%). Bordeaux mixture was found superior in managing the disease with lowest PDI values (80%,57%,48%,44%) at respective four observation dates which was followed by Trichoderma (76%,67%,54%,46%) and Cow urine (63%,57%, 53%, 47%). Despite the significant superiority of Bordeaux mixture all the three treatments Bordeaux mixture, Trichoderma and cow urine were statistically at par with each other at last day of observation. Lowest mean AUDPC value and AUDPC value per day was recorded in block treated with Bordeaux mixture (2425.92 and 30.32) as compared to untreated check (4574.074 and 60.76) indicating the slower disease progress in Bordeaux mixture treated blocks followed by Trichoderma and cow urine (31.94 and 34.72). Despite of the superiority of Bordeaux mixture in the slow progress of disease all three treatments were statistically at par with each other. All the treatments were superior in controlling the disease over the control, among them Bordeaux mixture followed by Trichoderma is found to have superior efficacy in managing the disease.