Archive Nut, Prune and Olive Programs

If you are noticing droopy, dried-out flower clusters on your pears, Asian pears, quince, apples or crabapples, fire blight may be the cause. Fire blight is caused by a bacterium and is a common and frequently destructive disease that usually shows up in April and May, but during dry spell, it may appear in…

 April fertilizing and deadheading After your roses have completed their first bloom, it will be time to deadhead and feed them. You should get a nice second bloom about six weeks after fertilizing. Remember, deadheading is not the same as pruning. There are two steps to deadheading. When the…

Summer Cortez, Ben Baldi, Lauren Hale, Carrie Brown and Evan Talmage joined UC ANR or took new positions within UC ANR recently.

 "The little things run the world," mused entomologist, biologist, naturalist and ecologist E. O. Wilson (1929-2023).He was referring to "the disproportionate role that they and other invertebrates play in food webs, ecosystem services, and generating and maintaining biological diversity," according to…

Disease Resistance CodesSome tomato varieties are developed to be resistant to certain diseases and pests. Codes may be listed with the tomato information. Here is a list of some codes that you may see. For more details about some that may apply to our area, see the article Decoding Tomato Disease Resistance…

With a dryer-than-average winter, warm nighttime temperatures, and record-breaking high daytime temperatures in March, 2026 is off to a warm start.   Figure 1. Recorded temperatures (blue bars) between 10/01/2025 and 10/23/2026 for Davis, CA, compared to our normal temperature range (beige…