Online Phenology Models and Degree-day Calculator
pear scab infection season [pear]
disease model of Spotts et al. 2000

Output from disease degree-day/phenology model program:
	Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================ Model species/general links: pear scab infection season [pear] Type: disease Model source/other links: Spotts et al. 2000 Calculation method: single sine Lower threshold: 32 degrees Fahrenheit Setting upper threshold to: 130 F (default) Directions for starting/BIOFIX: starting at bud swell stage Starting/BIOFIX date: 3 15 No ending date, set to: default date 12 31 Model validation status: in use in W. Oregon Region of known use: Pacific Northwest ==============================EVENTS TABLE================================ 1. 10 DD after bud swell Approx. start of pear scab infection season 2. 800 DD after bud swell Ascospore season continues: approx. half-way over 3. 1620 DD after bud swell Ca. 100% ascospores mature; 1st 0.01" of rain will 4. 1680 DD after bud swell Discharge remaining spores; end of primary infection season ==============================MODEL OUTPUT================================ Weather station: 1000 none selected mn day max min precip DD32 CUMDD32 event -- --- ----- ----- ------ ---- ------- -------