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UC IPM offers interactive tools and models that can help you make pest management decisions based on conditions at your site.

• California weather data
• Pest and plant models
• Additional tools
• Degree-day calculator

California weather data

Current daily and hourly data from stations throughout California, plus long-term data for climate stations. PestCast research networks provide hourly and daily values from selected locations.

Station news | About the database | Western Regional Climate Center | CIMIS

Select from: stations in (County) County Alameda Alpine Amador Butte Calaveras Colusa Contra Costa Del Norte El Dorado Fresno Glenn Humboldt Imperial Inyo Kern Kings Lake Lassen Los Angeles Madera Marin Mariposa Mendocino Merced Modoc Mono Monterey Napa Nevada Orange Placer Plumas Riverside Sacramento San Benito San Bernardino San Diego San Francisco San Joaquin San Luis Obispo San Mateo Santa Barbara Santa Clara Santa Cruz Shasta Sierra Siskiyou Solano Sonoma Stanislaus Sutter Tehama Trinity Tulare Tuolumne Ventura Yolo Yuba   Active stations only stations in (Networks) Networks PestCast Fresno-Madera Grape PestCast San Joaquin WEATHERNET PestCast Lake County Pear & Grape PestCast Lake County Pear PestCast Lake County Grape PestCast Coastal Strawberry PestCast 2010 California Tomato PestCast 2009 California Tomato PestCast 2008 California Tomato PestCast 2007 California Tomato PestCast 2006 California Tomato PestCast 2005 California Tomato PestCast 2004 California Tomato PestCast 2003 California Tomato PestCast 2002 California Tomato PestCast 2001 California Tomato PestCast 2000 California Tomato PestCast 1999 California Tomato PestCast 1998 California Tomato PestCast Independent Stations All PestCast All CIMIS All TouchTone All Climate All Local   station:  List

Pest and plant models (including UC-recommended degree-day models)

Videos:   Using degree-days to time insecticide applications
Beet armyworm (TABLE) California red scale (TABLE) Codling moth (TABLE) Consperse stink bug (TABLE) Cotton (TABLE) Elm leaf beetle (TABLE) Fire blight risk for apple and pear Fuller rose beetle (TABLE) Grape powdery mildew index Lygus bug (TABLE) Navel orangeworm (TABLE)	Obliquebanded leafroller (TABLE) Omnivorous leafroller (TABLE) Orange tortrix (TABLE) Oriental fruit moth (TABLE) Peach twig borer (TABLE) Pink bollworm (TABLE) San Jose scale (TABLE) Tomato fruitworm (TABLE) Tomato powdery mildew spray forecast

Degree-day calculator (Text-only version)

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.

Using this calculator | About degree-days |  Using degree-days

Thresholds Units Enter lower Enter upper (optional)   Method of calculation Upper cutoff method (optional)

 

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance. .

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