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Posts Tagged: aphids

Kill That 'Alligator-Looking" Critter? No, Don't!

An adult lady beetle (aka ladybug) and a larva. (Photo by Kathy Keatley Garvey)

"Yecch! What's that ugly bug? Kill it!" Have you ever heard anyone say that when they see the larva of a lady beetle (aka ladybug, family Coccinellidae)? Unfortunately, it's quite common among non-gardeners and non-insect enthusiasts. The larvae of...

An adult lady beetle (aka ladybug) and a larva. (Photo by Kathy Keatley Garvey)
An adult lady beetle (aka ladybug) and a larva. (Photo by Kathy Keatley Garvey)

An adult lady beetle (aka ladybug) and a larva. (Photo by Kathy Keatley Garvey)

Close-up of a larva of a lady beetle (aka ladybug). (Photo by Kathy Keatley Garvey)
Close-up of a larva of a lady beetle (aka ladybug). (Photo by Kathy Keatley Garvey)

Close-up of a larva of a lady beetle (aka ladybug). (Photo by Kathy Keatley Garvey)

Larva of a lady beetle (aka ladybug) eating an aphid. (Photo by Kathy Keatley Garvey)
Larva of a lady beetle (aka ladybug) eating an aphid. (Photo by Kathy Keatley Garvey)

Larva of a lady beetle (aka ladybug) eating an aphid. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, June 4, 2019 at 5:09 PM

The Enemy of the Gardener

Oleander aphids clustering on a milkweed stem. (Photo by Kathy Keatley Garvey)

Aphids, don't you just hate them? Especially those oleander aphids that suck the very lifeblood out of our milkweed plants that we're struggling to save for monarch butterflies. Just call aphids "The Enemy of the Gardener" or "The Enemy of the...

Oleander aphids clustering on a milkweed stem. (Photo by Kathy Keatley Garvey)
Oleander aphids clustering on a milkweed stem. (Photo by Kathy Keatley Garvey)

Oleander aphids clustering on a milkweed stem. (Photo by Kathy Keatley Garvey)

Aphids magnified on a Leica DVM6 microscope, operated by Lynn Epstein, UC Davis emeritus professor of plant pathology.
Aphids magnified on a Leica DVM6 microscope, operated by Lynn Epstein, UC Davis emeritus professor of plant pathology.

Aphids magnified on a Leica DVM6 microscope, operated by Lynn Epstein, UC Davis emeritus professor of plant pathology.

Posted on Friday, September 28, 2018 at 4:00 PM

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 (44), 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 (222), whiteflies (4)
Focus Area Tags: Pest Management Yard & Garden

The Incredible Aphid-Eating Machines

Lady beetle larva dining on aphids on milkweed, UC Davis campus. (Photo by Kathy Keatley Garvey)

Just call them the "incredible aphid-eating machines." That would be the lady beetles, commonly known as ladybugs (although they are not bugs; they're beetles belonging to the family Coccinellidae, and they're not all "ladies"--some are male!). How...

Lady beetle larva dining on aphids on milkweed, UC Davis campus. (Photo by Kathy Keatley Garvey)
Lady beetle larva dining on aphids on milkweed, UC Davis campus. (Photo by Kathy Keatley Garvey)

Lady beetle larva dining on aphids on milkweed, UC Davis campus. (Photo by Kathy Keatley Garvey)

A lady beetle, aka ladybug, tracks down more prey. (Photo by Kathy Keatley Garvey)
A lady beetle, aka ladybug, tracks down more prey. (Photo by Kathy Keatley Garvey)

A lady beetle, aka ladybug, tracks down more prey. (Photo by Kathy Keatley Garvey)

Posted on Thursday, August 30, 2018 at 5:38 PM

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 (44), damage (12), herbicide (5), leaf curling (1), peach leaf curl (5), thrips (8), UC IPM (222), whiteflies (4)
Focus Area Tags: Pest Management Yard & Garden

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