Pest Management & Plant Health

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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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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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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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Invasive species

Invasive insects, plants and animals threaten the health of our gardens and environment. Learn to how to spot invasives and how to report them.
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Cross section of a tree trunk that has trellis-like tunnels throughout. The tunnels are dark stained and go deep into the wood.
Pests in the Urban Landscape: Article

Mediterranean Oak Borer: Questions & Answers

May 28, 2025
By Lauren Fordyce
The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak, and Oregon oak. The beetle is spreading rapidly in Northern California counties and there is considerable potential for the beetle's range to expand as they…
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Bright orange and red flowers.
Pests in the Urban Landscape: Article

Debunking Pest Myths

May 20, 2025
By Lauren Fordyce
When trying to solve a pest or plant problem, it is likely that you will come across a wide variety of solutions online, passed down through the generations, or shared on social media. While there is plenty of reliable and science-based information out there, such as on the UC IPM website, there are also a…
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An adult emerald ash borer beetle on a leaf damaged by its feeding.
Pests in the Urban Landscape: Article

Emerald Ash Borer Awareness Week 2025

May 15, 2025
By Lindsey Hack
Tiny but destructive, the emerald ash borer (EAB) is an invasive beetle that has killed millions of ash trees across North America. In some cases, infested regions have lost nearly 100% of their ash trees to this pest. Though EAB has not yet been found in California, it was detected on the West Coast for the…
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