Sacramento Digs Gardening Article
Your resource for Sacramento-area gardening news, tips and events

Articles Recipe Index Keyword Index Calendar Twitter Facebook Instagram About Us Contact Us

Have you seen these day-biting mosquitoes?

UC Davis online seminar spotlights research on these invasive mosquitoes

Sacramento Digs Gardening
BY Debbie Arrington PUBLISHED OCT 19, 2020

The Asian tiger mosquito, Aedes albopictus is the focus
of a UC Davis online seminar Wednesday.
(Photos courtesy Centers for Disease Control and Prevention)

Two day-biting invasive mosquitoes are making themselves at home in California. And both species have the ability to transmit such deadly diseases as Zika virus and yellow fever.

Learn more during an informative and scholarly Zoom seminar at 4:10 p.m. Wednesday, Oct. 21. Presented in coordination wth UC Davis, "The Impact of Zika Virus Infection on the Metabolites and Microbiome of Aedes albopictus ” will focus on the lesser-known of these bad bugs.

Mosquito researcher Maria Onyango from the New York State Department of Health will discuss her work on Aedes albopictus , also known as Asian tiger mosquito. Geoffrey Attardo of the UC Davis Department of Entomology and Nematology will host the seminar. Attardo, a medical entomologist-geneticist, is a research collaborator with Onyango.

So far, the tiger mosquito has found its way into Los Angeles, Orange, San Bernardino and San Diego counties in Southern California, but only Shasta County in Northern California, according to the California Department of Public Health. But it’s expected that it’s only a matter of time before it finds its way into the Central Valley.

Much more widespread is its close cousin, Aedes aegypti , the yellow fever mosquito. It’s been found in 22 counties including Sacramento, Placer, San Joaquin, Sutter and most recently Yolo.

Both mosquitoes have the ability to transmit Zika virus and yellow fever among other diseases. But first, they must bite someone carrying that disease. Fortunately, those tropical diseases remain rare in California.

Health officials warn residents to be on the lookout for these little monsters, only about 1/4-inch in size.

Aedes aegypti , the yellow fever mosquito, has been found in
Citrus Heights, Antelope, Roseville, Winters and Davis.

“Unlike most native mosquito species, Aedes aegypti and Aedes albopictus bite during the day,” says the state’s public health website. “Both species are small, black mosquitoes with white stripes on their back and on their legs. They can lay eggs in any small artificial or natural container that holds water.”

In fact, the eggs of Aedes aegypti can live without water, then hatch when they become wet. Adapted to living close to people, this mosquito will lay eggs in such places as the inner rim of a flower pot or the saucer under the pot. It particularly likes to bite ankles or behind people’s knees.

Locally, the yellow fever mosquito has been found in Citrus Heights, Antelope, Roseville, Winters and Davis. Native to Uganda, this mosquito was first found in California in 2013.

According to Allardo, the Citrus Heights mosquitoes actually may have come from two different populations – one that originated in Los Angeles County and one that started in the Central Valley.

That discovery adds another wrinkle to how this mosquito has migrated throughout California.

To sign up for the seminar or to learn more: https://bit.ly/3m4JEoq

Comments

0 comments have been posted.

GENERAL GARDENING

An article about gardening.

Keywords:

mosquitoes gardening Sacramento pests Central Valley invasive pest UC Davis

Newsletter Subscription

Sacramento Digs Gardening to your inbox.

Taste Fall! E-cookbook

Find our fall recipes here!

Thanks to Our Sponsor!

Local News

Sites We Like

Garden Checklist for week of Nov. 3

November still offers good weather for fall planting:

* If you haven't already, it's time to clean up the remains of summer. Pull faded annuals and vegetables. Prune dead or broken branches from trees.

* Now is the best time to plant most trees and shrubs. This gives them plenty of time for root development before spring growth. They also benefit from fall and winter rains.

* Set out cool-weather annuals such as pansies and snapdragons.

* Lettuce, cabbage and broccoli also can be planted now.

* Plant garlic and onions.

* Keep planting bulbs to spread out your spring bloom. Some possible suggestions: daffodils, crocuses, hyacinths, tulips, anemones and scillas.

* This is also a good time to seed wildflowers and plant such spring bloomers as sweet pea, sweet alyssum and bachelor buttons.

* Rake and compost leaves, but dispose of any diseased plant material. For example, if peach and nectarine trees showed signs of leaf curl this year, clean up under trees and dispose of those leaves instead of composting.

* Save dry stalks and seedpods from poppies and coneflowers for fall bouquets and holiday decorating.

* For holiday blooms indoors, plant paperwhite narcissus bulbs now. Fill a shallow bowl or dish with 2 inches of rocks or pebbles. Place bulbs in the dish with the root end nestled in the rocks. Add water until it just touches the bottom of the bulbs. Place the dish in a sunny window. Add water as needed.

* Give your azaleas, gardenias and camellias a boost with chelated iron.

* For larger blooms, pinch off some camellia buds.

* Prune non-flowering trees and shrubs while dormant.

* To help prevent leaf curl, apply a copper fungicide spray to peach and nectarine trees after they lose their leaves this month. Leaf curl, which shows up in the spring, is caused by a fungus that winters as spores on the limbs and around the tree in fallen leaves. Sprays are most effective now.

Taste Spring! E-cookbook

Find our spring recipes here!

Taste Summer! E-cookbook

Find our summer recipes here!

Taste Winter! E-cookbook

Find our winter recipes here!