Garden Troubleshooting

UC Master Gardeners of El Dorado County: Article

Central Sierra: Five Steps to Avoid Becoming the Problem in Your Vegetable Garden

June 26, 2025
By Robin E Martin
Five Steps to Avoid Becoming THE Problem in YOUR Vegetable Garden. I have been growing my own vegetables for the last thirty years. I have grown vegetables in the ground, raised beds, and containers. During those years I have enjoyed good and bad harvests. Sometimes the problems which resulted in a poor…
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Tomato leaves with signs of Tobacco Mosaic Virus. Jack Kelly Clark, UC IPM Program
The Real Dirt: Article

A Virus in the Garden

June 24, 2025
Most gardeners are aware of plant diseases that can wreak havoc in their gardens. If you grow fruit trees, you may be confronted with curled, reddened peach leaves (peach leaf curl fungus). If you grow apples or pears, your trees may sometimes look like they were scorched with a blow torch (fire blight…
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Ladybug larva hunting on borage leaf

Good Bugs, Big Impact: The Secret World of Biological Control (Part 1)

June 24, 2025
By Lindsey Hack
You have probably heard about the “good bugs” that eat pest insects around your home and garden, like ladybugs, lacewings, and spiders. You may have even purchased some beneficial insects or nematodes at a garden store. Good bugs can also help us manage invasive species, but the process is a bit more…
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Tumbleweeds piled up against the front of a home.

Tumbleweeds Invading?

June 23, 2025
By Belinda Messenger-Sikes
Tumbleweeds rolling across the landscape may make you think of classic old Western movies, but tumbleweeds, or Russian thistle, is more common today than you might think. This invasive plant can grow anywhere the soil is disturbed and once it matures, it breaks off its stem and the dried plant blows across…
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Crape Myrtle leaves with sooty mold
Over the Fence (Alameda County): Article

What is that Black Stuff on my Plant Leaves?

June 14, 2025
By Judy Quan
The black stuff on your leaves is likely sooty moldThe black stuff on your leaves is probably sooty mold, a fungal disease growing on plants and other surfaces, and it is often seen in the spring and summer. The leaves or stems have a black coating that looks like soot. If you look closely, it is growing…
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A staff person from the California Department of Fish and Wildlife inspects a boat.
Pests in the Urban Landscape: Article

Clean, Drain, Dry: Protect Our Waters

June 10, 2025
By Cherie Shook
You may not see them, but small hitchhikers can cling to your boats, trailers, fishing gear, kayaks, and paddleboards. These hitchhikers are aquatic invasive species like plants, fish, and mussels. Once introduced to a body of water, they can displace native species, clog motors, damage water delivery…
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Stacks of firewood for sale below a canopy with a sign that says "firewood."
Pests in the Urban Landscape: Article

Destructive Pests Hide in Firewood

June 9, 2025
By Lindsey Hack
While bringing firewood from home for your weekend camping trip may seem harmless, many invasive pests can hide in firewood and cause serious harm to California’s forests and urban landscapes. You can help limit the spread of these unwanted hitchhikers by collecting or buying firewood close to where you plan…
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UC Master Gardener Program of Alameda County: Collection

Weeds

Learn how to ID weeds and control them. Learn how to avoid plants that can take over your garden and become weeds.
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UC Master Gardener Program of Alameda County: Collection

Wildlife

Learn how to manage animal pests and how to attract wildlife (birds, pollinators, and more).
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