Journal of the American Mosquito Control Association (2003) 19, 424-429

Luciano Toma, Francesco Severini, Antonino Bella and Roberto Romi (2003)
A semifield evaluation of Vectobac^® DT (ABG-6499), a new formulation of Bacillus thuringiensis israelensis for control of Aedes albopictus
Journal of the American Mosquito Control Association 19 (4), 424-429
Abstract: We evaluated the effectiveness and duration of effectiveness of a new formulation of Bacillus thuringiensis var. israelensis (Bti) for control of larval Aedes albopictus. The product tested was Vectobac^® DT (ABG-6499), a Bti tablet formulation containing 3.4% of active ingredient (3,400 ITU/mg) supplied by SCAE Valent BioSciences Italy S.r.l. The study was conducted at the Botanical Garden of the University of Rome "La Sapienza" between June and September 2002, the most favorable season for the development of Ae. albopictus in Italy. Black 20-liter plastic buckets containing water and an organic substrate were used as experimental breeding sites. The number of larvae in these buckets was estimated weekly, and positive buckets were treated with the recommended dose of the larvicide. The results showed that Vectobac DT induced 100% larval mortality after 24 h in all experimental breeding sites during the entire study period. Nonetheless, in most cases, the larvicidal activity only lasted about 48 h; thus, effective mosquito control would require that treatment be performed every 8-10 days in this habitat.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Roberto Romi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
formulation/storage of bioagents

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aedes albopictus		Italy
Bacillus thuringiensis var. israelensis (entomopathogen)	Aedes albopictus		Italy