Output from uspest.org/wea native insect degree-day/phenology model program:
Heat Units and predictions of key events from daily weather data
==============================MODEL INPUTS================================
Model species/general links: bronze birch borer [birch trees]
Type: native insect
Model source/other links: OSU OIPMC model analysis
Calculation method: single sine
Lower threshold: 43 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: Could benefit from data from additional years and regions
Region of known use: Developed with data from multiple US states and years
==============================EVENTS TABLE================================
1. 250 DDs after biofix: Prepupal larvae in OW cells under bark
2. 400 DDs after biofix: Beginning of pupation
3. 750 DDs after biofix: First adults exit trees
4. 950 DDs after biofix: 10% adult emergence
5. 1100 DDs after biofix: 50% adult emergence
6. 1400 DDs after biofix: Beginning of egg hatch and larval tunneling
7. 1600 DDs after biofix: 90% adult emergence
8. 2050 DDs after biofix: Adult activity and egg hatch ended, larvae continue tunneling
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD43 CUMDD43 event
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