Colusa County
University of California
Colusa County

Posts Tagged: grubs

Seeing Japanese beetles in your California landscape? Not likely.

Japanese beetle (Credit: D. Cappaert,

Originally posted August 26, 2016; edited July 10, 2018 Have you seen big green beetles in your California yard or garden? Or beetles feeding on your roses or other plants? There are many kinds of beetles commonly found in our landscapes, but the...

Posted on Tuesday, July 10, 2018 at 10:00 PM
Tags: beetle (2), CDFA (1), chafer (3), green (1), grubs (5), hoplia (2), Japanese (2), June (1), lawn (1), pests (4), UCIPM (2)
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...

Posted on Monday, April 24, 2017 at 11:48 AM
Tags: beetle (2), bug (1), chafer (3), grubs (5), hoplia (2), Japanese (2), management (1), nonchemical (1), pests (4), petal (1), rose (1), roses (1), UC IPM (2)

Monitoring for Lawn Insects

Performing a drench test in a square of lawn. [J.K.Clark]

Spring is a good time to begin monitoring for any lawn insect pests. Pest examples include various root, crown and leaf-feeding caterpillars, grubs like masked chafers, billbugs and chinch bugs. Although insects can be serious pests of lawns, lawn...

Posted on Monday, March 28, 2016 at 11:43 AM
Tags: caterpillars (1), controlling (1), damage (1), grass (1), grubs (5), insects (2), lawns (2), monitoring (1), Pest Notes (2), pests (4), turfgrass (1), UCIPM (2)

Preventing Lawn Insects

Masked chafer larvae (white grubs)

[From the July 2015 issue of the UC IPM Retail IPM Newsletter] Insect pests, though actually quite rare in well-managed lawns and turf, can sometimes jeopardize a flawless appearance, potentially sending people running to their local nursery or garden...

Posted on Wednesday, August 5, 2015 at 3:00 PM
Tags: chafer (3), grubs (5), insects (2), lawns (2), pests (4), summer (1), Sutherland (1), UC IPM (2)

Insects in Lawns

Black cutworm larva in turfgrass.

Contrary to popular belief, insects are not a common cause of residential lawn damage in California, Lack of proper cultural care and use of inappropriate grass species in a particular location are much more likely to cause unhealthy or dying lawns than...

Posted on Tuesday, October 28, 2014 at 1:35 PM
Tags: grubs (5), lawn insects (1), Pest Notes (2)
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