Abstract

SANTAMARINA MIJARES, Albero  and  PEREZ PACHECO, Rafael. Efecto patogénico del nematodo parásito Romanomermis iyengari (Nematoda: Mermithidae) en larvas del mosquito Aedes aegypti (Diptera: Culicidae) en condiciones de laboratorio en el Estado de Oaxaca, México. Rev Cubana Med Trop [online]. 1998, vol.50, n.1, pp. 8-11. ISSN 1561-3054.

Laboratory tests with waters from Aedes aegypti Linneaus (1762) breeding places were made to determine the pathogenic effect of the mermithid nematode Romanomermis iyengari Welch 1964 in mosquito larvae of this species. According to the results obtained, the administration of a dosage of 10:1 (10 preparasitics per mosquito larvae) showed levels of parasitism of 90, 93, 91, and 85 % in mosquito larvae in the I, II, III, and IV stage, respectively. With the highest dosage of 20:1 (20 preparasitics per mosquito larvae) there were obtained levels of parasitism with values of 98, 97, 93 and 89 % among larvae in the I, II, III, and IV stage, respectively. Generally, the values of the physical and chemical parameters such as pH, conductivity, oxygen, and chlorides calculated in theses waters did not affect apparently the infective capacity of the preparasitics of R. iyengari.

Keywords : NEMATODA [pathogenicity]; LARVA [parasitology]; AEDES [parasitology]; MOSQUITO CONTROL; LABORATORIES; MEXICO.

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