Evaluation of fungicides against wilt of rose caused by Rhizoctonia spp

Rose is a new introduction in Northern Karnataka. Wilt is becoming a more predominant decrease in rose fields. Wilt of rose caused by Rhizoctonia spp. was reported from Hanchinal (Bijapur Tq) during 2003-04. The severity ranged from 5 to 10 percent The fungus, Rhizoctonia spp was isolated from infected plant tissues and isolated fungus produced dark coloured colony on potato dextrose agar medium. In bioassay studies, captan (3000 ppm) carbendazim (2000 ppm), benomyle (1000 ppm), calexin (2000 ppm) and propiconazol (1000 ppm) and ridomyl MZ (2000 ppm) showed inhibition of 100,85, I 89.5,87 and 89% respectively. In field studies application of captan (0.3 %) + Copper oxychloride (03%) showed more effectiveness in reducing the incidence. The treatment was made twice at 15 days interval.