Journal of the American Mosquito Control Association (2014) 30, 68-70

Justin E. Harbison, Marlon Henry, Christopher Xamplas, Robert Berry, Dhrubajyoti Bhattacharya and Lara R. Dugas (2014)
A comparison of Fourstar™ briquets and Natular™ Xrt tablets in a north shore suburb of Chicago, IL
Journal of the American Mosquito Control Association 30 (1), 68-70
Abstract: Stormwater catch basins are the primary source of mosquitoes targeted by the North Shore Mosquito Abatement District, in the northern suburbs of Chicago. Over a 17-wk period (June to September 2011), 3 clusters of catch basins located within a 0.7-km² area were monitored weekly with dipper samples of immature mosquitoes. During the 2nd week of monitoring, Natular™ XRT tablets (6.25% spinosad) were applied to northernmost cluster and FourStar™ Briquets (6% Bacillus sphaericus, 1% Bacillus thuringiensis israelensis) were applied to the southernmost cluster; the remaining middle cluster was kept untreated. Following 15 wk of monitoring in 20 basins in each cluster, both Natular and FourStar reduced immature numbers in treated catch basins for 8 consecutive weeks. These results suggest, if effectively timed, a single application of either larvicide may last an entire season.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Justin E. Harbison

Research topic(s) for pests/diseases/weeds:
control - general
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
application technology
formulation/storage of bioagents

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Lysinibacillus sphaericus (entomopathogen)			U.S.A. (mid N)
Bacillus thuringiensis var. israelensis (entomopathogen)			U.S.A. (mid N)