Vegetation Management

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Tumbleweeds piled up against the front of a home.
Pests in the Urban Landscape: Article

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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A shiny green and bronze beetle on a heavily damaged leaf.
Pests in the Urban Landscape: Article

Wrapping Up Invasive Species Action Week

June 12, 2025
By Cherie Shook, Lindsey Hack
This week, we shared information about important invasive species, what to do if you find them, and how you can help prevent their spread. To wrap up California Invasive Species Action Week, we’d like to highlight a few key takeaways: Don’t pack or plant a pest Whether you’re traveling or gardening…
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Tall, green stalks of giant reed towering over two humans standing in front.
Pests in the Urban Landscape: Article

Keep Invasive Plants Out!

June 11, 2025
By Lindsey Hack
The golden flowers of French broom covering hillsides and the tall, striking stalks of pampasgrass stand out on trails and roadsides. These plants may be beautiful, but they are invasive and harm California’s natural landscapes.  Invasive plants outcompete and crowd out native plants, damaging…
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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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Red, black, and white spotted lanternfly nymphs on a plant.
Pests in the Urban Landscape: Article

Be on the Lookout

June 8, 2025
By Cherie Shook
Be on the lookout for invasive species threatening California! While state and federal agencies actively monitor for new invasive pests, the public serves a critical role in early detection and often are the ones who find new invasive species first.  During California Invasive Species Action Week …
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The letters "CISAW" animated as invasive species organisms.
Pests in the Urban Landscape: Article

Protect California from Invasive Species

June 5, 2025
By Lindsey Hack
Invasive species. What does that mean? Invasive species are non-native pests that harm California’s natural areas, public health, and economy. To raise awareness about these pests, UC IPM joins other state agencies to promote the annual California Invasive Species Action Week (CISAW), which goes from June 7…
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Los beneficios de los arboles urbanos
Water Supply Security (WSS): Article

Árboles Urbanos y su Papel en la Gestión de Aguas Pluviales

June 4, 2025
By Erik C Porse, Esther N Lofton
 Las copas de los árboles urbanos (UTC), es decir, las capas de hojas, ramas y tallos que cubren el suelo en las ciudades, son herramientas esenciales para gestionar las aguas pluviales, en particular en zonas urbanas densas como las del sur de California. En paisajes dominados por superficies…
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UC Master Gardener Program of Alameda County: Collection

Pests

Learn about garden pests, including insects like aphids and earwigs, and wildlife like gophers and deer. Learn how to manage them.
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