Colusa County
University of California
Colusa County

Posts Tagged: nonchemical

Updated Landscape Weed Info

Mallow (cheeseweed). [Credit: Jack Kelly Clark]

Controlling weeds can be challenging to landscape professionals or home gardeners since landscapes often include a mix of turfgrass, annual plants, herbaceous perennials, shrubs, and trees. The newly revised publication Pest Notes: Weed Management in...

Mallow (cheeseweed). [Credit: Jack Kelly Clark]
Mallow (cheeseweed). [Credit: Jack Kelly Clark]

Mallow (cheeseweed). [Credit: Jack Kelly Clark]

Posted on Wednesday, October 3, 2018 at 10:53 AM
Tags: control (37), herbicide (5), IPM (58), landscape (26), manage (2), management (27), nonchemical (2), pest (75), plants (11), UC IPM (224), weeds (21), Wilen (11)
Focus Area Tags: Pest Management Yard & Garden

What's That Beetle in My Roses?

Adult hoplia beetle and feeding damage. [J.K.Clark]

If you grow roses, you might be noticing damage on the flowers caused by hoplia beetles (Hoplia callipyge). Hoplia beetles, which are common between March and May, especially in the Central Valley, feed on the blossoms of light-colored roses and other...

Mature larva of hoplia beetle. [J. K. Clark]
Mature larva of hoplia beetle. [J. K. Clark]

Mature larva of hoplia beetle. [J. K. Clark]

Posted on Monday, April 24, 2017 at 11:48 AM
Tags: beetle (10), bug (6), chafer (3), grubs (5), hoplia (2), Japanese (3), management (27), nonchemical (2), pests (56), petal (1), rose (7), roses (10), UC IPM (224)
 
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