Mildew of pea (Pisum Savitum L.) caused by Erysiphe Pisi dc.

Powdery mildew of pea was studied in the field during rabi season (2009–10). Disease development was seen in establishment, progress and decline phases. Higher disease index was observed between January 31 – February 27, 2010 with the highest disease (80.5%) during Feb. 14–20. Multiple linear regression analysis revealed that both temperatures and relative humidities influenced 72.73% powdery mildew development on pea and remaining 27.27% were unexplained climatic variations. In field trial, minimum disease, maximum disease control and maximum green pod yield were obtained by hexaconazole 5EC, triademefon 25WP and triflumizole 480SC. Botanical, azadirectin was better than turmeric powder.