Home Discovery Bay & Byron Sept. 23: Mosquito Fogging Set for Discovery Bay

Sept. 23: Mosquito Fogging Set for Discovery Bay

by ECT

Due to the high numbers of mosquitoes and the detection of West Nile virus in the area, the Contra Costa Mosquito & Vector Control District will be fogging by truck to control adult mosquitoes in Discovery Bay.

The fogging will occur on Wedenday, September 23 in Discovery Bay on Agricultural land.  The area to be treated (shown in red below on the map) is bordered by Middle River on the north; Byron tract agricultural land on the east; by Channel Drive and Cherry Hills Drive on the west; and by Wayfarer Drive and Highway 4 on the south.

The fogging will begin at 7:30 pm and end by 10:30 pm with weather permitting.

The insecticide to be used is  Pyrocide 7067 applied at a rate of .75 ounces per acre by truck-mounted, ultra low volume sprayer.

The Contra Costa Mosquito & Vector Control District utilizes an integrated vector management program which means we use a variety of protocols for controlling mosquitoes. These protocols include public education, physical control such as managing vector habitat, biological control such as mosquitofish, and chemical control such as pesticides. 
The majority of the District’s mosquito control is completed when mosquitoes are still in their aquatic form, in their water source. Once mosquitoes emerge from the water as adults, the only effective method to control them is by using pesticides. We use only those products registered with the Environmental Protection Agency for the use of mosquito control and protecting  public health. They are applied by our trained and certified technicians.

West Nile Activity

Mosquito Samples: 4

nDate ReportedCityCross StreetsSpecies
16/15/15OakleyE. Summer Lakes Dr. x E. Cypress Rd. Culex tarsalis
26/15/15OakleyOakley Rd. x Main St.Culex tarsalis
38/17/15MartinezMococco Rd. x Marina Vista Ave.Culex tarsalis
49/14/15Discovery BayCherry Hills Dr.Culex tarsalis

 Dead Birds: 8
nDate ReportedCityCross StreetsSpecies
17/14/15OakleyNeroly Rd. x Oakley Rd.American Crow
27/23/15DanvilleRoan Dr. x Clydesdale Dr.American Crow
38/9/15Pleasant HillChilpancingo Pky x Camelback Rd.Steller’s Jay
48/21/15ConcordPeach Pl. x Oak Grove Rd.American Crow
58/31/15Walnut CreekLilac Dr. x Newell Ave.American Crow
69/1/15PittsburgBuchanan Rd. x Loveridge Rd.American Crow
79/3/15BrentwoodLone Tree Way x Jeffery WayAmerican Crow
89/9/15San RamonDos Rios Dr. x Bollinger Cyn Rd.American Crow

 Sentinel Chicken Flocks: 2

Note: Chickens do not die from West Nile virus. They develop antibodies to the virus which is detected in their blood.

# of Chickens out of 10 (10 per Flock)Date BledArea
2/107/13/15Holland Tract
4/107/27/15Holland Tract
1/108/24/15Oakley
1/108/24/15Holland Tract
5/109/8/15Oakley

 Horses: 1
nDate ReportedCityDead/Euthanized
19/17/15BrentwoodNo

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