Output from uspest.org/wea weed degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: downy brome
Type: weed
Model source/other links: Dan Ball et al 2004 publication (pdf)
Calculation method: simp avg/grow
Lower threshold: 32 degrees Fahrenheit
Setting upper threshold to: 130 F (default)
Directions for starting/BIOFIX: calendar date
Starting/BIOFIX date: 1 1
No ending date, set to: default date 12 31
Model validation status: validated - see publication
Region of known use: inland Pacific NW
==============================EVENTS TABLE================================
1. 1440 cumulative GDD after Jan 1 Panicle (seedhead) emergence
2. 1800 cumulative GDD after Jan 1 Beginning of seed production
3. 2430 cumulative GDD after Jan 1 Physiological maturity
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD32 CUMDD32 event
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