1Department of Plant Pathology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore -625 104
*E-mail: ahila.devi1@gmail.com
Online published on 24 December, 2014.
A field experiment was conducted to evaluate the efficacy of UPF 509 (Azoxystrobin 8.3 w/w + Mancozeb 64.75 w/w) against powdery mildew of grapes for 2 seasons at Theenampalayam village of Coimbatore district. It was found that Azoxystrobin 8.3 w/w + Mancozeb 64.75 w/w @ 0.36% is highly effective in reducing the powdery mildew disease in grapes. Further the phytotoxicity was not observed in the chemical Azoxystrobin 8.3 w/w + Mancozeb 64.75 w/w to the treated plots of grapevine even at high doses and also exhibiting an appreciable increase in Grape berry yield.
Azoxystrobin, grape vine, powdery mildew
