Data/hora: 10/06/2024 14:53:10

Provedor de dados: | 58
País: | Brazil
Título: | Susceptibility of Nasutitermes ehrhardti (Isoptera: Termitidae) to Bacillus thuringiensis subspecies
Autores: | Castilhos-Fortes,Raquel de; Matsumura,Aida T.S.; Diehl,Elena; Fiuza,Lidia M.
Data: | 2002-09-01
Ano: | 2002
Palavras-chave: | Bacillus thuringiensis; Biological control; Entomopathogenic bacteria; Nasutitermes ehrhardti; Termite.
Resumo: | The effects of Bacillus thuringiensis (Bt) Berliner on the termite Nasutitermes ehrhardti (Isoptera, Termitidae) were evaluated under laboratory conditions. From 55 Bt subspecies assayed in vivo under controlled conditions seven were found to be pathogenic in the subspecies yunnanensis, huazhongiensis, brasiliensis, colmeri and kurstaki (less than 72% of mortality), particularly sooncheon and roskildiensis (100% mortality at the seventh day after the bacteria application). The LC50 for subspecie sooncheon corresponded to 47x10(8),()66.2x10(6) and 5.1x10(5) cells/ml, at the third, fifth and seventh day, respectively. For the subspecie roskildiensis the LC50 corresponded to 30.8x10(5), 48.4x10(6) and 16.8x10(4) cells/ml, at the third, fifth and seventh day, respectively. The results show that the two most pathogenic subspecies effectively may be studied with regard to control the termite N. ehrhardti.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300006
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822002000300006
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.33 n.3 2002
Fonte: | info:eu-repo/semantics/openAccess