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: wild parsnip
Type: weed
Model source/other links: UMN model, USA NPN Guide
Calculation method: single sine
Lower threshold: 32 degrees Fahrenheit
Upper threshold: 86 degrees Fahrenheit
Directions for starting/BIOFIX: Calendar - Jan. 1
Starting/BIOFIX date: 1 1
No ending date, set to: default date 12 31
Model validation status: research model - not yet validated
Region of known use: Minnesota
==============================EVENTS TABLE================================
1. 409 DDs after Jan. 1: First leaves
2. 550 DDs after Jan. 1: 50% leaves
3. 1330 DDs after Jan. 1: First flower buds
4. 1472 DDs after Jan. 1: 50% flower buds
5. 1742 DDs after Jan. 1: First open flowers
6. 1841 DDs after Jan. 1: 50% open flowers
7. 1985 DDs after Jan. 1: First fruits (unripe)
8. 2088 DDs after Jan. 1: 50% fruits
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD32 CUMDD32 event
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