Mosquito Activity Report, September 11, 2011


The following is the summary of mosquito activity in Iowa from the ISU Medical Entomology Laboratory; September 11, 2011.


The mosquito story is the same as it has been for weeks. Mosquitoes are sparse throughout the Iowa landscape and overall activity has declined steadily since early July. The exception remains the flooded western Iowa counties, where very intense CDC trap yields in July and August were enough to warrant concern for residents in proximity to the water; mosquitoes of all types (including both floodwater and vector species) were very abundant.


Due to the current chills in the late summer air, even rainstorms like the one we had in Ames this past week are not expected to cause any mosquito resurgence. It seems that we may indeed be coasting to that comfortable pest-free finish line.


Visit the Iowa Mosquito Surveillance website to see the updated, mosquito collection data for the year. The statewide averages of mosquito counts by week (including a comparison to last year's mosquito activity) are shown.  Click on "County" on the left side of the page to see individual county data. Click "Year" to see historical data comparing yearly mosquito population trends.



Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach. If this article is to be used in any other manner, permission from the author is required. This article was originally published on September 14, 2011. The information contained within may not be the most current and accurate depending on when it is accessed.