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: CROPTIME models, lambsquarter
Type: weed
Model source/other links: Croptime project, CROPTIME weed model
Calculation method: single sine
Lower threshold: 42 degrees Fahrenheit
Upper threshold: 95 degrees Fahrenheit
Directions for starting/BIOFIX: first emergence of cotyledon
Starting/BIOFIX date: 6 10
No ending date, set to: default date 12 31
Model validation status: research model - not yet validated
Region of known use: W. OR
==============================EVENTS TABLE================================
1. 1 DDs after cotyledon: Cotyledon present
2. 75 DDs after cotyledon: 2 leaves present
3. 173 DDs after cotyledon: 4 leaves present
4. 273 DDs after cotyledon: 6 leaves present
5. 596 DDs after cotyledon: First infloresc.
6. 1360 DDs after cotyledon: Lower 95% CI first viable seed
7. 1462 DDs after cotyledon: Average first viable seed
8. 1564 DDs after cotyledon: Upper 95% CI first viable seed
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD42 CUMDD42 event
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