Potential of Periplaneta fuliginosa densovirus as a biocontrol agent for smoky-brown cockroach, P-fuliginosa
Autor(es): Jiang, H.; Zhou, L.; Zhang, J. -M.; Dong, H. -F.; Hu, Y. -Y.; Jiang, M. -S.
Resumo: A densovirus, named Periplaneta fuliginosa densovirus (PfDNV), affects smoky-brown cockroach (P. fuliginosa), which is a major peridomestic cockroach in China, southeastern United States, Japan, and Southeast Asia. We reported here that PfDNV could be mass-produced using virus rescue technology. Pathology and ultrastructural studies revealed the presence of enlarged and dense nuclei in hindgut cells of infected smoky-brown cockroach nymphs and adults. Laboratory bioassays of the PfDNV against P. fuliginosa showed that it has the potential to be used as a biocontrol agent. High mortality was recorded in adult smoky-brown cockroaches treated with PfDNV baits at the dosage of 6 x 10(4) virions per gram against P. fuliginosa in both no-choice tests and two-choice tests (LT(50)'s were 13.37 and 13.50 days, respectively). PfDNV was also effective in large population chamber tests. LT(50) was 17.57 days and mortality achieved was 95.6% in 28 observation days. (C) 2007 Elsevier Inc. All rights reserved.
Palavras-Chave: Periplaneta fuliginosa densovirus; Smoky brown cockroach; Biological control
Imprenta: Biological Control, v. 46, n. 2, p. 94-100, 2008
Identificador do objeto digital: 10.1016/j.biocontrol.2007.11.001
Descritores: Aedes aegypti - Genome
Data de publicação: 2008
