Accession Number:

ADA512482

Title:

Rate of Oviposition by Culex Quinquefasciatus in San Antonio, Texas, During Three Years

Descriptive Note:

Journal article

Corporate Author:

WALTER REED ARMY INST OF RESEARCH WASHINGTON DC DEPARTMENT OF ENTOMOLOGY

Personal Author(s):

Report Date:

1988-09-01

Pagination or Media Count:

7.0

Abstract:

Two artificial oviposition sites containing aged alfalfa pellet infusion were exposed to natural populations of Culex quinquefasciatus in San Antonio, Texas, for 3 years. Numbers of egg rafts were counted daily and compared to weather data from a nearby station. Egg rafts were generally most numerous in summer months, declining in fall and increasing in spring. Oviposition occurred in winter only when temperatures were high enough. A particularly severe winter in 1983-84 reduced winter activity, but was followed by a great increase in oviposition in late spring. In summer, increases of oviposition were correlated with rainfall 2 to 3 weeks before the time of oviposition. Rainfall at the time of oviposition appeared to decrease oviposition. On a seasonal basis, lack of rainfall in the summer of 1984 was correlated with a decrease in oviposition.

Subject Categories:

  • Biology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE