UCCE Master Gardeners of San Joaquin County
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UCCE Master Gardeners of San Joaquin County

UC Garden Blogs

Waterprimrose shows disturbance-related dispersal along the Russian River

Uruguay waterprimrose

It may be widely understood that most aquatic and wetland weeds are spread by water currents, but the patchwork of colonizing exotic plants can be puzzling. Why do weeds establish in some places but not others? Generally, the number of propagules (seeds...

Posted on Monday, July 16, 2018 at 8:50 AM
Tags: aquatic (37), Aquatic Plants (23), aquatic weeds (44)

Oak Galls

Oak apple galls on valley oak. (Credit: Jack Kelly Clark)

What are those curious, colorful, odd-looking growths you've seen growing on oak trees? Ever wonder what those little seeds are that jump around on the ground underneath oak trees in July or August? You might be surprised to know these growths on oaks...

Posted on Sunday, July 15, 2018 at 10:00 PM
Tags: cynipid (1), oak gall (1), UC IPM (176), wasps (6)
Focus Area Tags: Pest Management Yard & Garden

Weed ID: Traditional Tools to Smartphone Apps

Weeds of CA

Why is weed identification important? Simply stated, because not all management strategies are equally effective against all weed species. The weed community present in a given field, orchard, or vineyard may be comprised of species that are...

Posted on Sunday, July 15, 2018 at 5:04 PM
Focus Area Tags: Agriculture Pest Management

Christian Nansen Lab: Groundbreaking Research on Plant-to-Plant Communication

An illustration of plant-plant communication by the Christian Nansen lab, in the Plant Methods journal

Professor Rick Karban of the UC Davis Department of Entomology and Nematology, author of the landmark book, Plant Sensing and Communication (University of Chicago Press), says that plants can eavesdrop, sense danger in the environment, and can...

Diane Ullman: Off to France on a Fulbright to Research Plant Virus-Insect Interactions

UC Davis professor Diane Ullman, shown here in Saint-Enimie in southern France, has just received a Fulbright to study plant virus-insect interactions in France. This site is a few hours north of Langedoc, where she will be working.

A Fulbright to France... Congratulations to UC Davis entomology professor Diane Ullman who has just a received Fulbright to research plant virus-insect interactions in France. She will be studying plant viruses and the insects that transmit them. Her...

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