RESUMO
The fauna of blackflies of North Armenia is represented by 12 species from the genus Simulium. The species composition in the Tavush Region is most diverse (10 species) versus that in the Shirak (n = 5) and Lori (n = 3) Provinces, which is due to a wide variety of Simuliidae breeding sites. Among the bioregulators of blackflies, there are microsporidia of 4 species, cabbageworms (Mermithidae), and caddisflies of the genus Hydropsyche. There is a preponderance of microsporidia among the blackfly bioregulators. The highest percentage (60%) of the larvae infected with microsporidia is noted in the second half of summer, which is related to their environmental conditions.
Assuntos
Larva/microbiologia , Simuliidae/microbiologia , Animais , Armênia , Larva/parasitologia , Mermithoidea/isolamento & purificação , Mermithoidea/fisiologia , Microsporídios/isolamento & purificação , Microsporídios/fisiologia , Rios/microbiologia , Rios/parasitologia , Simuliidae/classificação , Simuliidae/parasitologiaRESUMO
Biological agents were found to have high larvicidal activity against Simuliidae of two Bacillus thuringiensis spp. israelensis strains. To reduce the number of the pre-imago stages of black flies, the biological agent BLP-2477 should be used as most effective from an environmental point of view.