Table 2.5-11. Estimated yield loss to powdery mildew diseases severity and varietal resistance
|Varietal Reaction||Estimated Yield Loss Given Detectable Disease (1%) at Different Canopy Levels During Head Emergence|
|Third Leaf||Second Leaf||Flag Leaf|
|Modified from Lipp, P. E. and Madden, L. V.; Phytopathology 79:462-470.|
A disease level of 1% is equal to approximately 2 or 3 pustules per leaf. Estimates of yield loss are based on 6 varieties over 3 years.