Output from uspest.org/wea insect degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: USDA ARS grasshoppers, rangeland grasshoppers (PNW) [rangeland, crops]
Type: insect
Model source/other links: OSU OIPMC model analysis
Calculation method: single sine
Lower threshold: 50 degrees Fahrenheit
Upper threshold: 100 degrees Fahrenheit
Directions for starting/BIOFIX: calendar date
Starting/BIOFIX date: 1 1
No ending date, set to: default date 12 31
Model validation status: in use by survey programs
Region of known use: Western USA
==============================EVENTS TABLE================================
1. 75 DDs after Jan 1 eggs in soil
2. 151 DDs after Jan 1 1st egg hatch, first instars
3. 328 DDs after Jan 1 1st second instars
4. 471 DDs after Jan 1 1st third instars
5. 626 DDs after Jan 1 1st fourth instars
6. 799 DDs after Jan 1 1st fifth instars
7. 1062 DDs after Jan 1 1st sixth instars
8. 1221 DDs after Jan 1 1st adults (pre-oviposition)
9. 1591 DDs after Jan 1 Adults egg laying
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD50 CUMDD50 event
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