Field trials with tank mixtures of Bacillus thuringiensis subsp israelensis and Bacillus sphaericus formulations against Culex pipiens larvae in septic tanks in Antalya, Turkey

Cetin H., Dechant P., Yanikoglu A.

JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION, vol.23, no.2, pp.161-165, 2007 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 2
  • Publication Date: 2007
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.161-165
  • Keywords: Culex pipiens, biological control, Bacillus thuringiensis israelensis, Bacillus sphaericus, septic tanks, mosquito control, MICROBIAL CONTROL, QUINQUEFASCIATUS DIPTERA, MOSQUITO LARVAE, ACUTE TOXICITY, RESISTANCE, DIFLUBENZURON, POPULATIONS, EFFICACY, MANAGEMENT, CULICIDAE
  • Akdeniz University Affiliated: Yes


Efficacy of tank mixtures of commercial Bacillus thuringiensis subsp. israelensis (Bti) and Bacillus sphaericus (Bs) water-dispersable granule (WDG) formulations was evaluated in septic tanks, against Culex pipiens L. (Diptera: Culicidae) larvae. VectoLex((R)) WDG (Bs) + VectoBac((R)) WDG (Bti) were evaluated at various ratios from 488 g/ha VectoLex + 250 g/ha VectoBac up to 3,000 g/ha of each. All applications and ratios delivering VectoLex WDG at a rate equal to or greater than 988 g/ha provided more than 90% control for 28 days after treatment. The lowest dose provided this level of control for at least 7 days after treatment, with greater than 80% control after 2 wk, These results suggest that a retreatment interval of 2 wk is recommended with the lowest dose and retreatment intervals of 4 or more wk are recommended with the doses equal to or higher than 988 g/ha VectoLex + 250 g/ha VectoBac.