Pests & Diseases

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An orange flower grows in a greenhouse
Green Blog: Article

California nursery industry grapples with plastics, water, nutrients

October 8, 2025
By Caroline D Champlin
Nursery owners and landscapers are anticipating a slew of new environmental regulations to impact business as usual. Scientists from University of California Agriculture and Natural Resources brought these hot topics, and many others, to business owners’ attention at the 2025 California Nursery Conference…
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Llevan a cabo conferencia para viveristas de California.
Blog Verde: Article

Investigadores de UC ANR apoyan a los viveros de California

September 12, 2025
By DIANA CERVANTES
Santa Paula, CA. – Un tapete de plástico especial, combinado con el uso de desinfectantes, puede ser la primera defensa contra enfermedades en viveros, donde las plantas jóvenes son muy frágiles. Con una medida tan sencilla, se podrían evitar pérdidas millonarias de plantas y dinero. El sector de los…
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A light brown rodent with black and white stripes around it's eyes and a bushy tail sitting on a tree stump.
Pests in the Urban Landscape: Article

CA Resident Tests Positive for Plague

September 2, 2025
A South Lake Tahoe resident has recently tested positive for plague, likely transmitted by the bite of an infected flea. While human cases of plague are rare, they can be serious. Before this most recent case, the last reported case was also in El Dorado County in 2020. Plague is caused by bacteria,…
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Nice looking lettuce
UC IPM on the South Central Coast: Article

2025 Fusarium wilt of lettuce variety trial field day - Soledad

August 19, 2025
By Christopher A Greer
Please join us for the 2025 Lettuce Fusarium Wilt Trial Field Day in Soledad - August 26, 2025 10 am - 12 pm. Trials include variety evaluations, steam treatment evaluations, and fungicide evaluations. Pre-registration is strongly suggested. Please see full article for additional info and directions.
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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

Bugs and Insects

Learn about the good insects and the pesky insects. Manage common problems encountered in Alameda county in both the vegetable garden and landscape/ornamental environment. Learn to spot invasives and how to manage them.
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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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