Program Details

The City of Geneva has maintained a fully integrated, comprehensive community control program that employs a strong emphasis on larval mosquito control (controlling the population of mosquitoes in the larval or egg stage of their life cycle). The City establishes program structure and specifications and makes use of those standards in contracting for the implementation of the program. Geneva’s program employs the following elements:

Larval Site Monitoring

Extensive inspection of known and potential mosquito-breeding sites throughout the City and Township on a 14-day cycle to detect active breeding and implement larvicide applications as required. Most of these inspections require access by foot.

Helicopter Prehatch Larviciding

Helicopter larviciding applications at strategic times during the breeding season to approximately 114 acres of open water throughout the City and Township to confirm treatment to areas of difficult access. Geneva utilizes environmentally safe products for larval control that biologically interrupts the development of the mosquito larvae and thereby reduces the numbers of adult mosquitoes.

Mosquitoes Stocking

Annual stocking of all permanent water features (ponds, retention basins, etc.) located within the City deploying Gambusia affinis for biological larval mosquito control.

Catch Basin Control

Treatments of catch basins, inlets, and manholes throughout the City with a slow release formulation of Altosid Insect Growth Regulators (IGR) impregnated in briquettes. In addition, an application of longer-lasting Altosid briquettes is made to rear-yard catch basins.

Adult Mosquito Monitoring

Geneva utilizes New Jersey Light traps installed in two locations to monitor the adult mosquito population. Light traps are serviced three times per week with technicians sorting and counting the captured mosquitoes. Light trap reports are transmitted to the City for evaluation and record-keeping. Information from the light trap monitoring network is a factor when making decisions to implement adult mosquito control measures.

Adult Mosquito Control

When a health advisory recommendation (West Nile Virus, St. Louis Encephalitis, etc.) exists, community-wide ULV (Ultra Low Volume) treatments with a synthetic pyrethroid may be implemented. This measure is a method of last resort in the mosquito management program and is employed only when all other forms of control have been ineffective. One challenge that is inherent in Geneva’s geographical position is that adult mosquitoes have the ability to migrate 10-20 miles. As such, many adult mosquitoes are produced outside of our jurisdiction/program treatment area and are carried by prevailing westerly winds into Geneva, circumventing our larval control efforts.

Geneva always attempts to schedule adult mosquito control ULV applications in cooperation with other local governments (such as the cities and townships of St. Charles and Batavia) to optimize the results of ULV applications. A community alert is posted to the City's website in advance of adult mosquito control ULV applications. Residents can subscribe to receive alerts via Notify Me.

Clarke, the City's mosquito abatement contractor, also offers text or email notification services in advance of a scheduled mosquito spraying. Registration is required.