Resumo

PEREZ PACHECO, Rafael; SANTAMARINA MIJARES, Alberto; HONORIO MARTINEZ, Sabino  e  FLORES AMBROSIO, Gonzalo. Susceptibilidad de las larvas de Anopheles pseudopunctipennis al parasitismo del nematodo Romanomermis iyengari Nematoda: Mermithidae), Estado de Oaxaca, México. Rev Cubana Med Trop [online]. 1998, vol.50, n.3, pp. 199-202. ISSN 1561-3054.

Mosquito larvae of the species Anopheles pseudopunctipennis Theobals 1901 were studied under laboratory and field conditions to evaluate the level of susceptibility to the parasitism of nematode Romanomermis iyengari Welch 1964. Doses of 5:1 and 10:1 and development stage II larvae collected in natural reservoirs were used for the laboratory assays. A dose of 1 000 preparasitic agents/ m² was applied to field trials. The results of the lab and field tests yielded high levels of infestation in larvae with values ranging from 90 to 100 % and from 85 to 95 %, respectively. A marked reduction of the larval densities was observed in the 5 treated reservoirs seven days later, which showed an elevated susceptibility of the anopheline species to mermethid parasitism.

Palavras-chave : ANOPHELES [parasitology]; MOSQUITO CONTROL [methods]; NEMATODA; MEXICO.

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