Effect of fungicides on the leaf r ot of Pan caused by Phytophthora parasitica var . piperina

Pan (Piper betle) is a cash crop of India. Farmers face heavy loss due to leaf rot of pan caused by Phytophthora parasitica var. piperina . Three fungicides i.e. Thiram, Bavistin, Fytalon were selected for study against test pathogen. Of these Fytalon was most effective against Phytophthora because it is only fungicides which control the disease completely both in vivo and in vitro conditions at 500 ppm.