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Archive for the 'Mosquitofish' Category

West Nile virus found in mosquitoes & bird from Oakley

Giant mosquito sculpture. Photo by Flickr user Arthur Chapman used under a Creative Commons License.
mosquito by Arthur Chapman


Detection late in the year, but inevitable

The Contra Costa Mosquito and Vector Control District is reporting the first virus-positive mosquitoes and bird this year, both from Oakley. The group of mosquitoes was collected from the vicinity of Empire Avenue and El Monte Drive, and the bird was found near W. Cypress Road and O’Hara Avenue.
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Posted on Friday, August 13th, 2010
Under: Mosquitoes, Mosquitofish, West Nile virus | No Comments »

West Nile update: 2nd horse, more birds, skeeters test positive in CoCoCo

Brentwood remains high risk area; Antioch’s risk lowered.

The Contra Costa Mosquito & Vector Control District is reporting one horse, one group of mosquitoes and six dead birds that have tested positive this past week for West Nile virus in the county. The horse and the mosquitoes were from Brentwood. Two of the birds were from Brentwood, two from Antioch, one from Concord, and one was from Danville. Brentwood remains a high risk area for West Nile virus infection in Contra Costa County.
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Posted on Friday, October 10th, 2008
Under: Birds, Horses, Mosquitoes, Mosquitofish, West Nile virus | 2 Comments »

Mosquitofish vs. West Nile: Good idea gone bad?

Good news, or bad news?

There was a story on Sept. 26 in the San Jose Mercury News by Lisa M. Krieger: “Hungry mosquitofish — the defense against West Nile — is also munching threatened frogs.”

The story explains that mosquitofish dine on larval mosquitoes as planned when county vector control people distribute thousands of the fish to residents for free to fight skeeters in backyard pools and ponds … BUT … “scientists have learned the tiny fish also have an appetite for the tadpoles of frogs, toads and other amphibians — including the threatened red-legged frog and the endangered Santa Cruz long-toed salamander.”
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Posted on Tuesday, September 30th, 2008
Under: Mosquitoes, Mosquitofish, West Nile virus | No Comments »