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: cabbage maggot - Delia radicum (L.)
Type: insect
Model source/other links: OSU DDs info cards (pdf), UC Extension
Calculation method: single sine
Lower threshold: 39.7 degrees Fahrenheit
Upper threshold: 86 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: partly validated
Region of known use: Pacific Northwest
==============================EVENTS TABLE================================
1. 360 DD after Jan 1: Initial spring emergence (10%)
2. 601 DD after Jan 1: Spring peak emergence (50%)
3. 750 DD after Jan 1: Egg-laying notes a) need plants at least 30 days after planting
4. 900 DD after Jan 1: notes b) Prefer maturing plants with developing roots, > 7 leaves
5. 1050 DD after Jan 1: notes c) At least 7 days after peak flight
6. 1200 DD after Jan 1: notes d) Lasts ca. 5 weeks, mostly during 2 weeks
7. 1521 DD after Jan 1: End of spring flight (95%)
8. 3849 DD after Jan 1: Fall flight begins
9. 5160 DD after Jan 1: Fall flight ends approx. first frost
==============================MODEL OUTPUT================================
Weather station: 1000 none selected
mn day max min precip DD39 CUMDD39 event
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