Pest Management

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yellowjacket
UC Marin Master Gardeners: Document

Yellowjackets

Yellowjackets are one-half to one inch long with jagged bright yellow and black stripes. Their narrow “waists” are barely visible. Unlike other common wasps, yellowjackets scavenge on food. They nest in holes in the ground, inside wall cavities, or in hanging nests totally enclosed in gray paper with a…
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Deer
UC Marin Master Gardeners: Document

Deer

Two most common are mule deer and black-tailed deer. Both eat shrubs, vines, fruit and nut trees, garden vegetables, grasses, and small flowering plants. Deer dislike some plants, especially when other more palatable plants are available.Signs/SymptomsHoof prints two to three inches long, split in the middle…
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Gopher
UC Marin Master Gardeners: Document

Gophers

 Small burrowing rodents that feed on roots of plants. A single gopher can inflict considerable damage in a short time. They live up to three years and eat a wide variety of vegetation, usually what they encounter while digging. Sometimes feed above ground, venturing only a body length or so from their…
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raccoons
UC Marin Master Gardeners: Document

Raccoons

Smart, dexterous, and can become very aggressive when cornered. When searching for den or food, they can be extremely destructive to homes and gardens. Communicate using a variety of sounds including purring, growling, hissing, and whistling. Eat plants and animals, including berries, nuts, acorns, pet food,…
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rat
UC Marin Master Gardeners: Document

Rats

Rats are among the most common pests in Marin homes and gardens. Norway rats (Rattus norvegicus) also known as brown, sewer, or wharf rats, are mostly nocturnal. They constantly explore and learn about their environment, memorizing pathways, obstacles, and locations of food and water. Roof rats (Rattus…
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skunk
UC Marin Master Gardeners: Document

Skunks

Triangular-shaped head, short legs and long, sharp, non-retractable claws. Spray can be squirted accurately as far as six to 10 feet away as a defense mechanism. Live in burrows. Eat a varied diet. Excellent sense of smell and good hearing, but very poor vision. Healthy skunks are mild-tempered. They prefer…
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Gopher
UC Marin Master Gardeners: Collection

Pest Profiles: Vertebrates

Solving Problems | Top 20 Problems | Garden Pests | Weeds & Invasives | Extreme Conditions | Other Garden Problems | Biological Control & Natural Enemies | Reducing Harmful Chemicals in the Garden Vertebrate Pests - Birds, Mammals, and Reptiles A vertebrate is an animal with a backbone…
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UC Master Gardeners of Merced County: Page

Merced Farmers' Markets & Master Gardeners

Look for our friendly UC Master Gardeners of Merced County and their info booth at the Merced Farmers' Market on the first and third Saturdays of each month. Info booth located at the 16th Street parking lot between M & K Streets Please stop by with your questions, Take home a vegetable seedling and garden…
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UC Master Gardeners of Merced County: Page

Become a Master Gardener!

The application process for the UC Master Gardeners of Merced County's 2026 Training Class is now open. Any Merced County adult resident with an interest in horticulture (plants, lawns, trees, vegetables and more) and public service are encouraged to apply for the Master Gardener Program.
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