Forests

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Two leafy green seedlings drooped over onto the soil.
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Damping-off of Seedlings

January 24, 2024
By Lauren Fordyce
Springtime planting is almost here but don't rush to plant seeds until the soil has warmed up! Planting seeds too soon, when the soil is cold and wet, risks losing them to damping-off, a disease caused by fungi and oomycetes in the soil.
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A hand holding brown soil.
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Healthy Soil Tips

December 5, 2023
By Lauren Fordyce
Healthy Soils Week (Dec. 4-8) is a week-long initiative by the California Department of Food and Agriculture (CDFA) to highlight the importance of soil health throughout California. Healthy soils can improve crop yields, sequester carbon, reduce erosion, and increase biodiversity.
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A close up of narrow, long green leaves of a peach tree. Some leaves have curled and are red and distored from peach leaf curl.
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Peach leaf curl spray timing

November 14, 2023
By Lauren Fordyce
Peach leaf curl is a fungal disease that only affects peach and nectarine trees. The fungus causes distorted, reddened leaves to appear on the tree in the spring.
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A close up of a brown mouse in a kitchen sink, with dishes in the background.
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Prevent rodents from overwintering in your home!

October 26, 2023
By Lauren Fordyce
Most people don't think about rats or mice until they become pests in or around the home. But with experts predicting that these pests will be particularly bad this upcoming winter, you might want to spend some more time rodent-proofing your home and other buildings.
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A landscape photo of an oak tree with dying, leafless branches in a meadow of dry brown grass.
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Sudden oak death: what is it?

September 11, 2023
Sudden oak death (SOD) is a disease syndrome that has killed millions of native oak trees (Figure 1) along the west coast of the United States, from Big Sur in California up to Southern Oregon.
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Close up of a green sycamore tree leaf with irregular brown spots.
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Defoliated Sycamore Trees?

September 7, 2023
By Belinda Messenger-Sikes
Have you been seeing a lot of defoliated sycamore trees recently? Sparse foliage and early leaf drop on sycamore trees might be due to anthracnose. The cool, wet spring in many parts of California provided the perfect conditions for this disease.
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A gray and white cat sitting outside of a house.
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Feral Cats and Their Impact in Communities

July 12, 2023
By Lauren Fordyce
Many of us at UC IPM are cat lovers and owners. Cats are popular household pets that bring joy and companionship to many families. Feral cats, on the other hand, can cause problems in our communities and around our homes and gardens. Feral cats are unsocialized, unowned cats that live outdoors.
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A vole, also known as a meadow mouse. [Credit: Jack Kelly Clark]
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Voles in Your Yard?

April 12, 2023
By Lauren Fordyce
Voles are small, mouselike rodents that can be pests in gardens and landscapes. They damage many types of plants with their gnawing, from vegetables to turf to trees. Voles can gnaw completely around the trunk or roots of trees, causing girdling, which can kill trees.
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