Bacillus thuringiensis var. israelensis (Bti) provides residual control of Aedes aegypti in small containers

Ritchie, Scott A., Rapley, Luke P., and Benjamin, Seleena (2010) Bacillus thuringiensis var. israelensis (Bti) provides residual control of Aedes aegypti in small containers. American Journal of Tropical Medicine and Hygiene, 82 (6). pp. 1053-1059.

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Abstract

We examined the use of megadoses of VectoBac WG for residual control of Aedes aegypti in 2-L plastic buckets. Doses of 10×, 20×, and 50× the recommended rate of 8 mg/L provided ≥ 90% control for 8, 8, and 23 weeks, respectively. There was no significant difference in mortality between dry (neat) or aqueous mixture of VectoBac WG. Pretreatment of dry containers up to 8 weeks before flooding did not significantly decrease efficacy through 11 success weeks. Thus, megadoses of dry formulations of Bti can be used for residual control of Ae. aegypti in small containers. Furthermore, these doses use small amounts of product (0.08–0.4 g/L) that is more practical to measure than the minute amounts (0.008 g/L) required by the recommended rate, and cost US$2.18 to treat 50 Cairns yards containing an average total of 80 containers. This method could also be used to control Aedes albopictus.

Item ID: 15890
Item Type: Article (Research - C1)
ISSN: 1476-1645
Keywords: dengue, Aedes aegypti, Bti
Date Deposited: 07 Apr 2011 04:10
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920499 Public Health (excl. Specific Population Health) not elsewhere classified @ 100%
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