Online Phenology Models and Degree-day Calculator
damage
apple scab infection season [apple]
disease model of Gadoury etal 1995


Output from uspest.org/wea disease degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: apple scab infection season [apple] Type: disease Model source/other links: Gadoury etal 1995 Calculation method: simp avg/grow Lower threshold: 32 degrees Fahrenheit Setting upper threshold to: 130 F (default) Directions for starting/BIOFIX: bud break growth stage Starting/BIOFIX date: 3 15 No ending date, set to: default date 12 31 Model validation status: not fully tested Region of known use: Pacific Northwest ==============================EVENTS TABLE================================ 1. 200 DDs after bud break 7% ascospore maturation 2. 300 DDs after bud break 21% ascospore maturation 3. 500 DDs after bud break 60% ascospore maturation 4. 750 DDs after bud break 95% ascospore maturation 5. 900 DDs after bud break 100% ascospore maturation ==============================MODEL OUTPUT================================ Weather station: 1000 none selected mn day max min precip DD32 CUMDD32 event -- --- ----- ----- ------ ---- ------- -------