Occurrence of Psorophora columbiae eggs in different field types comprising a Texas riceland agroecosystem
Welch, J.B.; Olson, J.K.; Yates, M.M.
Journal of the American Mosquito Control Association 2(1): 52-56
1986
ISSN/ISBN: 8756-971X PMID: 2906961 Document Number: 271018
The oviposition patterns of Psorophora columbiae, a major pest of man and livestock, were studied in 1979-81 in a riceland agroecosystem in Texas. Eggs occurred more frequently and in greater numbers in soil samples taken from soyabean fields than in samples from either rice fields or permanent pastures during the summers of 1979 and 1981 when there was heavy rainfall in the study area. During the dry summer of 1980, the frequency of egg occurrence and abundance increased in samples taken from rice fields although soyabean fields remained important for oviposition.