PMID: 539719Mar 1, 1979

Evaluation of a trial to control Biomphalaria glabrata in Guadeloupe by using a sterilizing trematode (author's transl)

Annales De Parasitologie Humaine Et Comparée
H NassiY Golvan

Abstract

A trial of biological control of Biomphalaria glabrata was carried out in Guadeloupe by using Ribeiroia marini guadeloupensis Nassi, 1978, an autochtonal Trematode which sterilizes the snail vector of Schistosoma mansoni. The trial took place in a pond in which the population of B. glabrata presents an annual demographic cycle related to the alternation of dry and rainy seasons. About 8 millions eggs of R. marini were introduced in 15 months into the biotope. Despite the low yield of these introductions, due particularly to the high turbidity of the water, this trial gave positive results in the disappearance of almost all the snails. The analysis of the results concerning the evolution of the levels of the snails and of the prevalence shows that a comparable efficiency could be obtained by massive introductions of eggs during short periods.

Related Concepts

Seasonal Variation
Pest Control, Biological
Echinochasmus
Australorbis glabratus
Disease Vectors
Subfecundity

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