Abstract
During 1994-95, totals of 17,656 adult females and 111,104 adults reared from field-collected immatures comprising 19 species in 4 genera of mosquitoes were collected from Morro Bay estuary and surrounding environs in San Luis Obispo County, California. Aedes dorsalis was the dominant summer mosquito, whereas Aedes squamiger and Ae. washinoi were abundant during winter and early spring. Host-seeking Culex tarsalis were collected infrequently, even though immatures were collected frequently from freshwater surface pools. Overall, 13,561 adults (386 pools) and 91,547 adults reared from field-collected immatures (3,027 pools) were tested for arboviruses by plaque assay in Vero cell culture. Morro Bay virus, a member of the California serogroup, was isolated from 4 pools of Ae. squamiger reared from field-collected immatures (minimum field infection rate = 1.07 per 1,000), verifying the maintenance of this virus by vertical transmission. All remaining pools were negative. Three flocks of 10 sentinel chickens and one group of 5 sentinel rabbits were bled biweekly and tested for arbovirus antibodies with negative results. Neither horizontal nor vertical transmission of western equine encephalomyelitis virus was detected.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 679-687 |
| Number of pages | 9 |
| Journal | Journal of the American Mosquito Control Association |
| Volume | 12 |
| Issue number | 4 |
| State | Published - Dec 1 1996 |
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ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Public Health, Environmental and Occupational Health
- Insect Science
Cite this
Ecology of mosquitoes and lack of arbovirus activity at Morro Bay, San Luis Obispo County, California. / Reisen, William; Hardy, J. L.; Chiles, R. E.; Kramer, L. D.; Martinez, V. M.; Presser, S. B.
In: Journal of the American Mosquito Control Association, Vol. 12, No. 4, 01.12.1996, p. 679-687.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ecology of mosquitoes and lack of arbovirus activity at Morro Bay, San Luis Obispo County, California
AU - Reisen, William
AU - Hardy, J. L.
AU - Chiles, R. E.
AU - Kramer, L. D.
AU - Martinez, V. M.
AU - Presser, S. B.
PY - 1996/12/1
Y1 - 1996/12/1
N2 - During 1994-95, totals of 17,656 adult females and 111,104 adults reared from field-collected immatures comprising 19 species in 4 genera of mosquitoes were collected from Morro Bay estuary and surrounding environs in San Luis Obispo County, California. Aedes dorsalis was the dominant summer mosquito, whereas Aedes squamiger and Ae. washinoi were abundant during winter and early spring. Host-seeking Culex tarsalis were collected infrequently, even though immatures were collected frequently from freshwater surface pools. Overall, 13,561 adults (386 pools) and 91,547 adults reared from field-collected immatures (3,027 pools) were tested for arboviruses by plaque assay in Vero cell culture. Morro Bay virus, a member of the California serogroup, was isolated from 4 pools of Ae. squamiger reared from field-collected immatures (minimum field infection rate = 1.07 per 1,000), verifying the maintenance of this virus by vertical transmission. All remaining pools were negative. Three flocks of 10 sentinel chickens and one group of 5 sentinel rabbits were bled biweekly and tested for arbovirus antibodies with negative results. Neither horizontal nor vertical transmission of western equine encephalomyelitis virus was detected.
AB - During 1994-95, totals of 17,656 adult females and 111,104 adults reared from field-collected immatures comprising 19 species in 4 genera of mosquitoes were collected from Morro Bay estuary and surrounding environs in San Luis Obispo County, California. Aedes dorsalis was the dominant summer mosquito, whereas Aedes squamiger and Ae. washinoi were abundant during winter and early spring. Host-seeking Culex tarsalis were collected infrequently, even though immatures were collected frequently from freshwater surface pools. Overall, 13,561 adults (386 pools) and 91,547 adults reared from field-collected immatures (3,027 pools) were tested for arboviruses by plaque assay in Vero cell culture. Morro Bay virus, a member of the California serogroup, was isolated from 4 pools of Ae. squamiger reared from field-collected immatures (minimum field infection rate = 1.07 per 1,000), verifying the maintenance of this virus by vertical transmission. All remaining pools were negative. Three flocks of 10 sentinel chickens and one group of 5 sentinel rabbits were bled biweekly and tested for arbovirus antibodies with negative results. Neither horizontal nor vertical transmission of western equine encephalomyelitis virus was detected.
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UR - http://www.scopus.com/inward/citedby.url?scp=0030338461&partnerID=8YFLogxK
M3 - Article
C2 - 9046476
AN - SCOPUS:0030338461
VL - 12
SP - 679
EP - 687
JO - Journal of the American Mosquito Control Association
JF - Journal of the American Mosquito Control Association
SN - 8756-971X
IS - 4
ER -