Online Phenology Models and Degree-day Calculator
immaturedamageadult
peach twig borer [stone fruits]
insect model of 2007 USU Ext.

  info Select degree-day model list or calculator mode instructions:
 (hint: select all form options, click here:   and make a bookmark for later use)
 For calculator mode, enter thresholds in °F (or celsius °C:) and calculation method:
  info  lower: °     upper: °     info  
info  Select starting and ending dates
 Starting date/BIOFIX instructions: 1st consistent capture of moths in pheromone traps #   (ca. 405 DD after Mar 1 or Jan 1 in warm climates)

info  Select location: Only one column should display a location, otherwise "None"
Oregon, California, Alaska
Washington, Idaho
Montana, Wyoming
 Or upload your own weather data file to calculate: (see format description or example file)
Forecasts: info NWS zipcode/city, state: or weather.com site:
info  Select historical average forecast location: Should line up with selected location above
info  Output:    Simple header   Table    Graph    Include precipitation in graph
  Click here to run the model:      Reset: 

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This site hosted by OSU Integrated Plant Protection Center and The WRIPM Center.
Previous versions of this program online since May 16, 1997, last updated Jan 2, 2019 version 4.53
Contact Len Coop at coopl@science.oregonstate.edu 541-737-5523 if you have any questions about this program.