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.
West Nile Activity
Mosquito Samples: 4
n | Date Reported | City | Cross Streets | Species |
1 | 6/15/15 | Oakley | E. Summer Lakes Dr. x E. Cypress Rd. | Culex tarsalis |
2 | 6/15/15 | Oakley | Oakley Rd. x Main St. | Culex tarsalis |
3 | 8/17/15 | Martinez | Mococco Rd. x Marina Vista Ave. | Culex tarsalis |
4 | 9/14/15 | Discovery Bay | Cherry Hills Dr. | Culex tarsalis |
n | Date Reported | City | Cross Streets | Species |
1 | 7/14/15 | Oakley | Neroly Rd. x Oakley Rd. | American Crow |
2 | 7/23/15 | Danville | Roan Dr. x Clydesdale Dr. | American Crow |
3 | 8/9/15 | Pleasant Hill | Chilpancingo Pky x Camelback Rd. | Steller’s Jay |
4 | 8/21/15 | Concord | Peach Pl. x Oak Grove Rd. | American Crow |
5 | 8/31/15 | Walnut Creek | Lilac Dr. x Newell Ave. | American Crow |
6 | 9/1/15 | Pittsburg | Buchanan Rd. x Loveridge Rd. | American Crow |
7 | 9/3/15 | Brentwood | Lone Tree Way x Jeffery Way | American Crow |
8 | 9/9/15 | San Ramon | Dos Rios Dr. x Bollinger Cyn Rd. | American Crow |
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 Bled | Area |
2/10 | 7/13/15 | Holland Tract |
4/10 | 7/27/15 | Holland Tract |
1/10 | 8/24/15 | Oakley |
1/10 | 8/24/15 | Holland Tract |
5/10 | 9/8/15 | Oakley |
n | Date Reported | City | Dead/Euthanized |
1 | 9/17/15 | Brentwood | No |