Survival of Aedes aegypti (Diptera: culicidae) eggs in surface and subterranean breeding sites during the northern Queensland dry season

被引:57
作者
Russell, BM
Kay, BH
Shipton, W
机构
[1] Queensland Inst Med Res, Herston, Qld 4029, Australia
[2] Univ Queensland, Royal Brisbane Hosp, Trop Hlth Program, Brisbane, Qld 4029, Australia
[3] James Cook Univ N Queensland, Sch Biomed Sci, Townsville, Qld 4029, Australia
关键词
Aedes aegypti; Periplaneta americana; Penicillium citrinum; eggs; dry season; subterranean;
D O I
10.1603/0022-2585-38.3.441
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The effect of a protracted dry season on the viability of Ae. aegypti (L.) eggs was examined in Townsville, northern Queensland, Australia. Eggs were placed in several different surface and subterranean larval habitats; and after four dry season months, only 1-10% of eggs remained viable in the surface and subterranean sites. respectively. Low humidity and predation by Periplaneta americana (L.) were the major causes of egg mortality, in eggs in surface sites. P americana was the most significant cause of egg predation in subterranean breeding sites but fungi, especially Penicillium citrinum Thom, covered egg Latches within 15 d. Mycotoxins produced by the spores of P. citrinum are believed to have killed embryonating eggs. The high mortality rate of Ae. aegypti eggs during the dry season suggests that this survival strategy is unlikely to contribute to rapid and successful recolonization of surface sites at the end of the wet season.
引用
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页码:441 / 445
页数:5
相关论文
共 9 条
[1]  
CHANDRASHEKHAR S, 1990, CURR SCI INDIA, V59, P108
[2]   CITRININ INTERFERES WITH SPIRACLE CONTROL IN THE COCKROACH, PERIPLANETA-AMERICANA [J].
CHANDRASHEKHAR, S ;
MURTHY, VA ;
SURYANARAYANAN, TS .
LETTERS IN APPLIED MICROBIOLOGY, 1993, 16 (02) :104-105
[3]  
Christophers S.R., 1960, Aedes aegypti (L.) the yellow fever mosquito: its life history
[4]   LARVICIDAL EFFECTS OF PENICILLIUM-CITRINUM SPORES AND EXTRACTS UPON AEDES-AEGYPTI [J].
MVOUTOULOU, N .
JOURNAL OF INVERTEBRATE PATHOLOGY, 1992, 60 (02) :208-209
[5]  
NOLAN RA, 1980, J MED ENTOMOL, V4, P333
[6]  
Pitt J. I., 1979, GENUS PENICILLIUM IT
[7]  
RITCHIE SA, 1988, THESIS U FLA, V5, P96
[8]  
Russell B.M., 1997, Arbovirus Research in Australia, V7, P240
[9]  
Streatfield R., 1993, Communicable Diseases Intelligence, V17, P330