[From the August 2016 issue of the UC IPM Green Bulletin]
A new psyllid pest that causes a distinctive, tight, typically complete rolling of leaves (Figure 1), has been found on Ficus microcarpa (Chinese banyan, Indian laurel fig) in Los Angeles, Orange, San Bernardino, Ventura, San Diego, and Riverside counties. This species of Ficus is one of our most common, useful, and widespread ornamental landscape trees. Incidentally, it has also long been a target for numerous exotic pests.
The psyllid, identified as Trioza.../span>
[From the March 2016 issue of UC IPM's Retail Nursery & Garden Center IPM News]
Asian citrus psyllid (ACP) continues to spread and to be an ever-present concern in California. Because of this, we have updated information from the April 2015 issue of UC IPM's Retail IPM newsletter to share with your customers.
Until 2013, ACP was mostly found in Southern California, but has since been found in multiple locations in the Central Valley and has been detected as far north as the San Francisco Bay Area. The psyllid is well-established in coastal and inland Southern California and it is slowly establishing itself in...
- Author: Jeannette E. Warnert
Weeds are easiest to control when they are tiny emerging plants, reported Jeanette Marantos in a Los Angeles Times blog post. Marantos got tips on weed management from Cheryl Wilen, UC Cooperative Extension integrated pest management advisor in Southern California.
Wilen recommends home gardeners use a swivel (or hula) hoe to scrape the surface and decapitate weeds. “It's a bit of exercise,” she said, "but you can do it so quickly, it's not a problem.”
Another weed control strategy is a thick layer of mulch, with does double-duty by...
The very popular IPM Pest and Weed Identifier Wheels are now available for purchase! The Pest Wheel helps the user identify and manage 12 common pests, including ants, snails, powdery mildew, and scale insects. The Weed Wheel covers 12 common garden and landscape weeds, including crabgrass and yellow nutsedge.
These interactive tools, developed by University of California Cooperative Extension Area IPM Advisor Cheryl Wilen and IPM Community Educator Scott Parker in San Diego County, help to identify each pest and provide pest-specific information, such as locations where the pest may be found, the damage it may cause, any special features of the pest, and least-toxic control options. Each wheel provides this information in both...
[From the April 2015 issue of the UC IPM Retail Newsletter]
In June 2013, we wrote about the Asian citrus psyllid (ACP) in UC IPM's Retail Nursery and Garden Center News. At that time, ACP was mostly found in parts of Southern California. It has since been detected in multiple locations in the Central Valley and has been detected in the San Francisco Bay Area. Thus, the psyllid is established near, or threatening much of, California's commercial, nursery, and residential.../span>