| Click
here to view large version of graph
*
Powdery mildew (Uncinula necator) conditions
for infection occur wen there is at least 0.1" of rainfall at 13
hours of leaf wetness and > 50 degrees F; spore germination
inhibited >95 degrees F. Requires 5-7 days cycle from infection to
conidial production under optimum condition. Rainfall not required
for release of secondary spores.
|
){kind=link}