Online Phenology Models and Degree-day Calculator
immaturedamageadult
San Jose scale [tree fruits]
insect model of Rice etal 1982


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: San Jose scale [tree fruits] Type: insect Model source/other links: Rice etal 1982 Calculation method: single sine Lower threshold: 51 degrees Fahrenheit Upper threshold: 90 degrees Fahrenheit Directions for starting/BIOFIX: first male scale from overwintering generation Starting/BIOFIX date: 3 15 Ending date: 8 31 Model validation status: partly validated Region of known use: Pacific Northwest ==============================EVENTS TABLE================================ 1. 305 DD after 1st male from OW gen: 100 degree-days until first crawler 2. 405 DD after 1st male from OW gen: first crawler emergence 3. 605 DD after 1st male from OW gen: UC Davis rec. crawler treatment 4. 723 DD after 1st male from OW gen: first second instars 5. 936 DD after 1st male from OW gen: first pupae 6. 1031 DD after 1st male from OW gen: 1st male catch next generation 7. 1050 DD after 1st male from OW gen: first mating next generation 8. 1455 DD after 1st male from OW gen: first crawlers second generation ==============================MODEL OUTPUT================================ Extended Seasonal Forecast: NOAA NMME 7-month 1910 MF22754 PRISM_rev1_4km 2008-2017
San Jose scale model - Rice etal 1982
Location: 5-31-19 307 100 degree-days until first crawler
Extended Seasonal Forecast: NOAA NMME
DateDDsEvent
 6-29-19 733first second instars
 7-8-19 936first pupae
 7-13-19 10511st male catch next generation
 7-13-19 1051first mating next generation
 7-31-19 1468first crawlers second generation
degree-day graph of San Jose scale [tree fruits] Rice etal 1982