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NEWA Default Biofix Dates

Many pest forecast and crop management tools require a biofix date to start calculating the pest risk and crop results. NEWA tools utilize default biofix dates, estimated as described below, for end users who are not tracking the specific biofix. For improved accuracy, always use your recorded biofix date for the pest forecast or crop management tool you are interested in. Enter it each time you use the tool.

When tools are accessed from the Station Pages the results default to the current date. To access tool results for other end dates, select them from the main menus - Pest Forecasts, Crop Management, or Weather Data.

Pest Forecast Model	Biofix	Default Biofix Date
Apple Scab	50% McIntosh green tip	Estimate based on DD accumulations correlated with historical observations.
Fire Blight	First blossom open	Estimate based on DD accumulations correlated with historical observations.
Sooty Blotch & Flyspeck	90% petal fall	Estimate based on DD accumulations correlated with historical observations.
Codling Moth	First sustained trap catch	Estimate based on DD accumulations correlated with historical observations.
Oriental Fruit Moth	First sustained trap catch	Estimate based on DD accumulations correlated with historical observations.
Obliquebanded Leafroller	First sustained trap catch	Estimate based on DD accumulations correlated with historical observations.
Plum Curculio	90% petal fall	Estimate based on DD accumulations correlated with historical observations.
Grape Berry Moth	Wild grape bloom	Estimate based on DD accumulations correlated with historical observations.
Tomato Diseases, Tomcast	Transplant date	May 1
Onion Disease Forecast	Planting date	April 21
Onion Disease Log	Planting date	April 21
Onion Modified Blight Alert	Planting date	April 21
Onion Blight Alert	Planting date	April 21
Potato Early Blight	Emergence date	May 1
Potato Late Blight	Emergence date	May 1