Suppression of Aedes aegypti by predatory Toxorhynchites moctezuma in an island habitat.
Larval populations of the mosquito Aedes aegypti were suppressed by predatory Toxorhynchites moctezuma mosquito larvae released systematically in a village on Union Island (Saint Vincent and the Grenadines) during March-December 1988. Eggs and larvae of Tx.moctezuma were transported from Trinidad and introduced into all semi-permanent and permanent water-holding containers in the experimental village at Clifton. The semi-isolated village of Ashton served as control. Base-line Ae.aegypti indices (house, ovitrap, Breteau, cistern/tank, drum/barrel, small containers) were obtained for the two villages over a 4-month period prior to the introduction of the predatory Tx.moctezuma mosquito larvae. After sustained releases of predators for 5 months, all indices of Ae.aegypti were lower in the treated village than in the untreated village during the last 3 months of the year.
Tikasingh
E S
ES
Caribbean Epidemiology Centre, Port of Spain, Trinidad.
Eustace
A
A
D000330:Aedes / Q000502:physiology*; D000818:Animals; D003365:Costs and Cost Analysis; D009033:Culicidae / Q000502:physiology*; D007303:Insect Vectors / Q000502:physiology*; D007814:Larva / Q000502:physiology; D010572:Pest Control, Biological / Q000191:economics; D011235:Predatory Behavior; D012621:Seasons; D014867:Water; D014900:West Indies
D014867:Water