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: Japanese knotweed
Type: weed
Model source/other links: USA NPN Guide, UMN model
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. 318 DDs after Jan. 1: First emergence
2. 357 DDs after Jan. 1: 50% emergence
3. 607 DDs after Jan. 1: First leaves
4. 664 DDs after Jan. 1: 50% leaves
5. 4227 DDs after Jan. 1: First flower buds
6. 4581 DDs after Jan. 1: 50% flower buds
7. 4822 DDs after Jan. 1: First open flowers
8. 5229 DDs after Jan. 1: 50% open flowers
9. 5510 DDs after Jan. 1: First fruits (unripe)
10. 5732 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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