Larvicidal activity of blastospores and conidiospores of Beauveria bassiana (strain GK 2016) against age groups of Aedes aegypti .
Autor(es): Miranpuri, G. S.; Khachatourians, G. G.
Resumo: Laboratory bioassays of two development stages, blastospores (BS) and conidiospores (CS) of Beauveria bassiana (strain GK 2016) against Aedes aegypti larvae were conducted at 27 degree C. In Study 1, against 24 h post-hatched larvae, both BS and CS stages showed significant difference in their respective larvicidal efficacy over the control. Larval mortality between 24 and 96 h post-exposure was significantly higher than any other time period investigated. Significantly higher larval mortality was observed with BS or CS at 10 super(8)/ml over lower concentrations. In Study 2, against different age groups, 12-24 h post-hatched larvae showed significantly higher mortality when treated with BS or CS than older age groups. A significant difference was found in the larvicidal potency of B. bassiana) at different fungal stages.
Palavras-Chave: Metabolites; Spores; Fungi; Pest control; Interspecific relationships; Biological age; Conidia; Mortality; Toxicity tests; Bioassays; Insect larvae; Larvicides; Aedes aegypti; Beauveria bassiana; Culicidae; Diptera
Imprenta: Veterinary Parasitology, v. 37, n. 2, p. 155-162, 1990.
Descritores: Aedes aegypti - Larvicide
Data de publicação: 1990
