Colusa County
University of California
Colusa County

Posts Tagged: whiteflies

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 those under trees? This sticky substance, called honeydew, is produced by certain insects that excrete it when they feed on plants. Plant leaves look shiny and...

Posted on Monday, September 24, 2018 at 3:06 PM
Tags: ants (30), aphids (43), Asian citrus (1), car (1), dripping (1), honeydew (8), huanglongbing (33), leafhoppers (4), mealybugs (3), psyllids (2), scale (2), sooty mold (4), sticky (2), UC IPM (214), whiteflies (4)
Focus Area Tags: Pest Management Yard & Garden

Curling Leaves on Plants

Plant problem diagnostic tool menu.

If you are puzzled by curling leaves on plants in your garden or landscape, you may need to do some detective work to figure out the cause. Curling leaves can be caused by many problems, including insect damage, disease, abiotic disorders, or even...

Plant problem diagnostic tool menu.
Plant problem diagnostic tool menu.

Plant problem diagnostic tool menu.

Posted on Monday, May 21, 2018 at 1:16 PM
Tags: abiotic (4), aphids (43), damage (12), herbicide (5), leaf curling (1), peach leaf curl (5), thrips (8), UC IPM (214), whiteflies (4)
Focus Area Tags: Pest Management Yard & Garden

New Mealybugs Pest Note!

Mealybug colony. [Jack Kelly Clark]

Have you ever had an infestation of mealybugs on your houseplants or outside on your landscape plants? You may have wondered, “Where did these insects come from?” Mealybugs are often introduced into landscapes and indoors from plant material...

Posted on Friday, March 11, 2016 at 1:36 PM

Whiteflies Resource - Newly Updated!

Sweetpotato whitefly adults, larvae and pupae.

The summer is winding down, but many warm-weather pests, like whiteflies are still going strong. Whiteflies are tiny white insects commonly found in vegetable garden and landscape plantings in large numbers. Often they fly around plants when disturbed,...

Posted on Tuesday, September 22, 2015 at 3:10 PM
Tags: ants (30), mary louise flint (3), natural enemies (9), UC IPM (214), whiteflies (4)
 
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