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Conditions for Powdery Mildew (Uncinula necator) infection occur
when there is at least 0.1" of rainfall and > 60o F; spore germination
inhibited >95o F. Rainfall detrimental to spore survival. Require
5-7 days cycle from infection to conidial production.
**Campbell Scientific & Field Monitor Weather Data Systems. As of
7 am on August 8th
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Excel Spreadsheet of weather data
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