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Degree Days Model to Manage Pests - IPM

Online calculator IPM Integrated Pest Management tool to manage pests by weather for organic and sustainable agriculture

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How to Manage Pests

Run Models and Calculate Degree-Days

This degree-day calculator has two branches. Run preset models that have been recommended by UC Cooperative Extension, or specify the thresholds and method of calculation for any model. Use weather data from the UC IPM weather database, a file you supply, or data you enter online.

Weather data for the calculations may come from the UC IPM database for California, a file you supply, or data you enter online.

Data from UC IPM weather database

The database originated in 1980 as part of the original IMPACT online computer system and stores both current and historical daily weather data for approximately 350 weather stations throughout California.


Other interactive tools on the UC Davis website include:
  • UC Guide to Healthy Lawns—the information homeowners and others need to plant and maintain healthy lawns in California
  • NEMABASE—plant-parasitic nematode database developed by UC Davis Department of Nematology
  • Cotton resources—crop management tools
  • Keys to identifying ants, weeds in turf, turfgrass species, aphids of cotton/alfalfa, and aphids of small grains/corn.

Edited by Carolyn Allen
| toolkit | ipm | agriculture | farming | organic farming |


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