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The buds shown on the walnut branches are male flowers called catkins
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UC scientists ask walnut trees: When do you need to be irrigated?

April 16th, 2025
By Trina Kleist
UC scientists are working with growers in Tehama, Butte, Lake, Amador, Contra Costa, Stanislaus and Yolo counties to test a new way of measuring the irrigation needs of walnut trees. Shackel and team think this new method will allow growers to use less water by not irrigating early in the season, and trees…
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Botanical Mementos

April 16th, 2025
Blog article by Karen Metz, UC Master GardenerMany of us have plants in our gardens or yards that remind us of people or places.  Sometimes trees or shrubs are planted to honor the birth of a child, a milestone birthday, or in memory of a loved one.  We might have plants that we have grown from…
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2025 Second Report-- April 16th

April 16th, 2025
By Patricia A Lazicki, Neil McRoberts
General situationThe oldest tomatoes have been in ground for more than a month, and planting is progressing rapidly. The warm weather in the past two weeks has pushed thrips population projections forward by a few days compared to the last report. Thrips populationFirst-generation adults are still…
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2025 First Report-- April 2

April 2nd, 2025
By Patricia A Lazicki
General situation, thrips population developmentPlanting is in full swing. Temperatures and precipitation this spring are close to historic norms, and the thrips population predictions are very similar to those we saw last year. We’re currently at the peak of 1st-generation adults; they’ll be laying their…
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2025 National 4-H Beekeeping Essay Competition

March 18th, 2025
2025 National 4-H Beekeeping Essay CompetitionSponsored by the Foundation for the Preservation of Honeybees, Inc.CA State deadline is April 14, 2025.Submit your complete essay entry by April 14, 2025 to Gemma Miner at gmminer@ucanr.edu.Theme: The Importance of Youth in Beekeeping: How 4-H members can make a…
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Alfalfa

Alfalfa is an important crop in California and the Delta. California ranks first in alfalfa production nationwide, and in the Delta, alfalfa is one of the top three crops by acreage, occupying approximately 10 percent of the land area.
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