UCCE Master Gardeners of San Joaquin County
University of California
UCCE Master Gardeners of San Joaquin County

Posts Tagged: thousand cankers

Thousand Cankers Disease of Walnuts

Figure 1. Walnut twig beetles are tiny, about 1.5 mm in length.

[From the December 2014 issue of the UC IPM Green Bulletin] For at least a decade, thousand cankers disease (TCD) has been killing walnut trees across California wildlands and landscapes. The causative agent is a yeast-like fungus (Geosmithia morbida)...

Posted on Monday, January 12, 2015 at 4:20 PM
Tags: IPM (64), Pest Notes (58), TCD (1), thousand cankers (2), twig beetle (1), walnut (1)

Exotic Pests Invade California Landscapes

Bagrada bug nymphs and adults.

[From the April 2014 issue of the UC IPM Green Bulletin newsletter] Over the last several decades dozens of exotic pests have invaded California landscapes, causing at least temporary havoc and sometimes severely affecting the aesthetic value of plants...

Posted on Monday, April 14, 2014 at 4:23 PM
 
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