UCCE Master Gardeners of San Joaquin County
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UCCE Master Gardeners of San Joaquin County

Posts Tagged: beetle

Invasive pest spotlight: Goldspotted Oak Borer

Photo Bark staining on coast live oak caused by larvae of the goldspotted oak borer. [Photo by Tom Coleman, USDA Forest Service]

Goldspotted oak borer. First identified in eastern San Diego County in 2004, the goldspotted oak borer, Agrilus auroguttatus, has killed over 25,000 California native red oaks since its arrival and has now been detected in Riverside County. Larvae feed...

Photo Adult female (left) and male (right) goldspotted oak borers. [Photo by Michael Jones, UC Davis]
Photo Adult female (left) and male (right) goldspotted oak borers. [Photo by Michael Jones, UC Davis]

Photo Adult female (left) and male (right) goldspotted oak borers. [Photo by Michael Jones, UC Davis]

Posted on Tuesday, February 23, 2016 at 10:47 AM
Tags: beetle (10), Flint (3), goldspotted oak borer (1), GSOB (1), invasive (46), oak (2), pest (75), UC IPM (225)

Foamy Bark Canker: A New Disease on Coast Live Oak

Figure 4 Foamy liquid oozing from an infected tree. [A. Eskalen, UCR]

[From the August 2015 issue of the UC IPM Green Bulletin]  Declining coast live oak (Quercus agrifolia) trees have recently been found throughout urban landscapes in Los Angeles, Orange, Riverside, Santa Barbara, Ventura and Monterey counties. A...

Posted on Friday, September 25, 2015 at 3:05 PM
Tags: Akif Eskalen (1), bark (3), beetle (10), beetles (13), canker (3), foamy (2), Geosmithia pallida (1), oak (2), oaks (1), ooze (1), Pseudopityophthorus pubipennis (1), UCCE (10)

Pines, Drought and Beetles

Figure 1. Tree roots often grow near the surface when soil is compacted, or when the only water available comes from shallow irrigation.

[From the August 2015 issue of the UC IPM Green Bulletin] Although pine trees are comparatively drought tolerant, there comes a point where even hardy trees become stressed by lack of water. Stressed pines frequently exhibit symptoms such as thin,...

Posted on Thursday, August 27, 2015 at 4:55 PM
Tags: bark (3), beetle (10), boring (1), drought (25), infestation (5), Pest Notes (58), pine (2), pitch (1), sap (1), Swain (2), tree (16), UC IPM (225)

Dealing with Pantry Pests

Fig. 1 Adult Indian Mealmoth

[From the July 2015 issue of the UC IPM Retail Nursery and Garden Center IPM News] Pantry pests sometimes find their way into our homes undetected and can infest stored products like flour, cereal, pasta, dried fruit, nuts, and even pet food. Often, by...

Posted on Tuesday, August 11, 2015 at 1:21 PM
Tags: beetle (10), grain (2), Grains - General (1), indian (1), kitchen (1), meal (2), mealmoth (1), moth (5), moths (17), pantry (4), Pest Notes (58), sawtooth (1), Swain (2), UCIPM (66), Windbiel (3)

Camping soon? Don't move firewood!

Cankers and beetle galleries.

As you plan the last few camping trips of the summer, remember: buy firewood when you get to your destination. Don't move firewood! Buy it where you burn it. Why? Simply, we don't want wood-boring pests and diseases to be moved from one area in the...

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Posted on Friday, July 31, 2015 at 1:30 PM
Tags: beetle (10), camping (3), firewood (7), invasive (46), IPM (64), pests (55)

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