UC Pest Notes -University of California’s official guidelines for pest monitoring techniques, pesticides, and non-pesticide alternatives for managing pests around  

Homes, people, & pet

Agricultural Fruits and Vegetable Crops

  • Weed Photo Gallery ~ Includes many, but not all, weed species commonly found in California farms and landscapes. Additional species will be added over time.
  • Natural Enemies Gallery ~ Includes natural enemy species commonly found on California farms and in landscapes. Additional species will be added over time.
  • More Identification Helpers: ~ Identifying pests is the first step toward managing them. These keys and photo galleries will help you identify pests and their natural enemies.   

Natural Pest Controls

Invisible fence kits to help keep out deer, pets, etc.:

Growing Roses

Rose Pests:


General Fruit Tree Information:

  • Fruit Tree Chilling Requirements:
    • Dormancy is broken when sufficient cold temperature breaks down the growth inhibitors within the tree. This is called vernalization, “chilling,” or “winter chill.” A specific number of cumulative hours of chilling (temperatures between 32°F – 45°F), are required to break dormancy, which varies from variety to variety.

Chilling Unit Accumulation – A City by City listing from November 1 through March 30 – the usual dormant season for California’s tree fruit and nut crops.

Varieties of Fruits and Nuts:

Low Chill or Southern Highbush Varieties

Grapes and Berries:

Diseases and Pest of Fruit Trees:

Sub-Tropical Fruits:

Tidbits and other stuff: