Phytophthora foot rot caused by Phytophthora capsici is the most devastating disease of black pepper in India. Studies were conducted to evaluate bio agents and chemicals against sugarcane rust disease during 2007, 2008 and 2009 at the Regional Agricultural Research Station Chintapalle. Less foliar yellowing (13.52%), less defoliation (15.28%), less death of vines (4.72%) and highest green berry yield of 2.46 Kg per vine when vines were treated before onset of monsoon (May), during rainy season (June-July) and during 2nd fortnight of August with potassium phosphonate (0.3%) as spraying (2 l/vine) and drenching of Trichoderma harzianum 50g per vine with 1kg of neem cake to the root zone. This is followed by chemical check with application of (1.0%) Bordeaux mixture spray (2l/vine) and copper oxychloride (0.1%) as drenching (3l/vine) where in less foliar yellowing (16.6%), less defoliation (20.25%), less death of vines (5.40%) and green berry yield of 2.08 Kg per vine were recorded.