Garden Troubleshooting

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American pondweed with emerged inflorescences. Submerged or floating-leaved aquatic plants with roots within the soil sediment.

UCCE Sutter-Yuba Advisors to Participate in Weed Management Area Project

January 30, 2026
By Whitney B Brim-Deforest, Troy L Clark
UCCE Sutter–Yuba is pleased to announce the launch of a new collaborative project with the Sutter and Yuba County Agricultural Commissioners’ Offices focused on the identification and management of invasive weed species in the region. As part of this effort, this project will be coordinating ongoing mapping…
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Several large, brilliant purple flowers scattered over dense, deep green leaves.
Pests in the Urban Landscape: Article

When Ornamentals Escape

January 20, 2026
By Cherie Shook
You might be surprised to learn that a few of your favorite ornamental plants are invasive to California and can “escape” your yard causing big problems in the wild. When plants escape landscape and garden boundaries, it is often due to seed distribution or aggressive roots. An invasive plant species can…
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Short mushrooms growing at the edge of a lawn along mowing strip. Caps of mushrooms are whitish to light brown and appear cracked. Caps are flat with edges rolled down slightly.
Pests in the Urban Landscape: Article

Rains Bring Lawn Mushrooms

January 9, 2026
By Belinda Messenger-Sikes
Winter rains and damp conditions in many parts of California may have brought a surprise visitor to your lawn: mushrooms! A few mushrooms sprouting in your lawn can be a good sign: it means there's plenty of organic matter in the soil. But if patches of mushrooms are sprinkled across your lawn, something…
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Frost damage on citrus leaves. UC Regents
The Real Dirt: Article

Frost Protection for Citrus

January 4, 2026
Freezing temperatures damage plants by causing ice crystals to form in their cells. Frost-damaged vegetation withers and turns a dark brown or black. Ice crystals can also form in citrus fruit, causing juice vesicles inside the fruit to rupture and the fruit to dry out. Although frost-damaged fruit is…
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UC Master Gardeners of Placer County: Article

Worms in My Apples: Non-chemical Control of Codling Moths

December 18, 2025
Jacqueline Champa, UC Master Gardeners of Placer County From The Curious Gardener, Fall 2010All summer you looked forward to your first, fresh-picked apple of the season. Picking a beautiful apple off the tree, the only imperfection is a slight red spot on the skin---somewhat like a blossoming…
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UC Master Gardeners of Placer County: Article

Thrips on Nectarines

December 18, 2025
By Elaine Applebaum, UC Master Gardeners of Placer County Q: I have a lot of nectarines on my tree this year but most have ugly brown and yellow scabby-looking scars on them. They’re also much smaller than the ones in the grocery store. Some of the leaves are curled and distorted, too. What am I…
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UC Master Gardeners of Placer County: Article

Vegetable Crop Rotation

December 7, 2025
By Trish Grenfell, UC Master Gardener of Placer CountyQ:  I've been told to rotate the crops in my vegetable garden. Last year’s garden was very successful, and I don’t want to “fix it if it is not broken”.A:  Crop rotation, which has been around for centuries, refers to the practice of…
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UC Master Gardeners of Placer County: Article

Tomato Problems

December 7, 2025
There are a number of problems that can arise when growing tomatoes. Here are some problems you may encounter and why they happen.1) BLOSSOM DROP When daily temperatures are greater than 90 degrees and nights are higher than 72 degrees, the dried-out blossoms simply fall off the plant. No blossoms = no…
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