- Author: Pamela Kan-Rice
The incurable citrus tree disease huanglongbing, or HLB, has been detected in Los Angeles and Orange counties and most recently in
The California Department of Food and Agriculture (CDFA) and the United States Department of Agriculture (USDA) have confirmed the detection of the citrus disease known as Huanglongbing (HLB), or citrus greening, in Riverside County. The disease was detected in plant material taken from a grapefruit tree...
The following press release was distributed on April 13, 2017 by the Citrus Pest & Disease Prevention Program.
Huanglongbing was confirmed in a single citrus tree in the City of La Habra in Orange County on April 11. This new find will result in a new HLB quarantine area, which will link the existing quarantines into a contiguous zone spanning portions of Los Angeles and Orange counties.
Additionally, two samples of Asian citrus psyllids in Anaheim tested positive for carrying the bacteria that causes HLB. These lab results were confirmed last week, and the California Department of Food and Agriculture is treating host plants in the surrounding 800-meter area. No...
The following press release was distributed on March 28, 2017 by the Citrus Pest & Disease Prevention Program.
The California Department of Food and Agriculture crews conducting intensive, risk-based surveys detected eight citrus trees confirmed to be infected with Huanglongbing. All trees were in the core area of San Gabriel where HLB has previously been detected. This brings the total number of HLB-positive trees in California to 46.
CDFA routinely conducts HLB surveys throughout the state based on a risk model that considers factors that may make an area more likely to have a presence of the disease. CDFA has further fine-tuned this approach by increasing the number of samples pulled from citrus trees...
If you subscribe to our Pests in the Landscape blog, you'll notice that we frequently post updates about Asian citrus psyllid (ACP) and huanglongbing (HLB). Educate yourself about ACP and HLB so you can help prevent its spread. Here are a few things you can do: