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Learn about common problems and diseases of trees and shrubs, including those of fruit trees. Diseases include common fungal problems - peach leaf curl, oak root fungus.
General outlook & thrips populationAs planting wraps up, temperatures remain similar to long-term averages. Thrips population predictions are similar to last week’s update. Generation 2 adults peaked a couple weeks ago; generation three adults are predicted to peak 6/8. The 3rd and 4th…
When you spot a plant in your garden that doesn’t look healthy, how do you figure out what’s wrong with it? Plant problems can be caused by insects, mites, vertebrates, environmental conditions, and diseases, but it can sometimes be hard to tell which is causing the problem. UC IPM's Plant Problem…
Bermuda buttercup (Oxalis pes-caprae), also called buttercup oxalis or sourgrass, might be a familiar sight in winter and spring, particularly to those who live in coastal regions or the Sacramento Valley. Some people enjoy seeing this plant’s cheerful yellow flowers pop up in their spring gardens, but for…
General situation The 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 population First-generation adults are still…
What Are the UC Ag Experts Talking About?Event NameDateUC Ag Experts Talk: Considerations for Cover Crops and Weed Management 3/19/2025 UC Ag Experts Talk: Integrated Soil Health Management 4/30/2025 UC Ag Experts Talk: Mealybug Management in Citrus Orchards in California 5/21/2025 What…
Find out how to deal with worms, bugs, and flying insects as well as slugs, snails, and earwigs in your home garden. Follow along with the presentation.
Armillaria root rot, also known as Oak root fungus, is a disease of many different plants. There is no known effective cure. Root rot fungus disease of trees and woody plants. Affects palms, succulents, ferns and other herbaceous plants like begonia, daffodil, dahlia, and geranium. No…
