UC Master Gardeners, Santa Clara County, CA
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UC Master Gardeners, Santa Clara County, CA

Posts Tagged: huanglongbing

HLB Detections in Corona Expand Quarantine in Portions Of Riverside, Orange And San Bernardino Counties

This blotchy yellowing of citrus tree leaves is an early sign of Huanglongbing and will worsen as the disease develops in the tree. (Photo courtesy of CitrusInsider.org)

The California Department of Food and Agriculture has declared a quarantine following the detection...

Posted on Friday, December 20, 2019 at 4:07 PM
Tags: acp (31), Asian citrus psyllid (31), citrus (18), disease (40), HLB (27), huanglongbing (35), insect (10), invasive (39), pest (94), quarantine (10), UC IPM (247)

Asian Citrus Psyllid Webinar for Backyard Gardeners

Brown adult, yellow nymphs, and white wax of Asian citrus psyllids.<br>(Credit: M Rogers)

We hope by now most people have heard about and are aware of the Asian citrus psyllid (ACP), a...

Posted on Sunday, December 1, 2019 at 8:45 AM
Tags: ACP (31), Asian Citrus Psyllid (31), citrus (18), disease (40), Grafton-Cardwell (13), HLB (27), huanglongbing (35), invasive (39), pest (94), trees (13), UC IPM (247)

Asian Citrus Psyllid

Figure 1. Asian citrus psyllid adult and eggs on young citrus leaves.<br>(Credit: M. Lewis, CISR)

[This post has been modified from the article originally published in the Fall 2018...

Posted on Thursday, February 28, 2019 at 7:30 AM

Sticky mess on plants

Feeding by aphids created this sticky honeydew on crape myrtle leaves. (Credit: Belinda Messenger-Sikes)

Are you seeing cars, sidewalks, driveways, or other plants covered in sticky stuff, especially...

Posted on Monday, September 24, 2018 at 3:06 PM
Tags: ants (17), aphids (9), Asian citrus (1), car (1), dripping (1), honeydew (7), huanglongbing (35), leafhoppers (2), mealybugs (4), psyllids (2), scale (2), sooty mold (4), sticky (2), UC IPM (247), whiteflies (5)
Focus Area Tags: Pest Management Yard & Garden

Invasive Spotlight: Asian Citrus Psyllid and Huanglongbing Disease


As part of our coverage of California Invasive Species Action Week, today we focus on a pair of...



Posted on Sunday, June 3, 2018 at 11:02 PM
Tags: ACP (31), Asian citrus psyllid (31), citrus (18), disease (40), economic harm (1), HLB (27), huanglongbing (35), Invasive (39), pest (94), UC IPM (247)

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