Research and Evaluation

Manatee County Mosquito Control District is continually evaluating our existing methods, looking for ways to improve our effectiveness at controlling mosquitoes while at the same time reducing the potential for impacting other organisms, including human residents.

Operational Evaluations and Collaborative Research

The District is continually evaluating its existing control methods, using mosquito surveillance to measure how effective various programs are at reducing mosquito populations and mosquito-borne disease threats. The District also works closely with industry partners in testing new products, equipment and formulations. In addition to these operational evaluations usually conducted in-house, District scientists will also collaborate with Universities and research labs on projects looking at mosquito biology, impacts on non-target organisms and novel control methodologies,
Manatee County MCD is recognized throughout the World for its expertise in conducting operational research that benefits the whole mosquito control community, with District personnel often being asked to present at regional, national and even international meetings. Examples of this include the World Health Organization (WHO) requesting the assistance of District Personnel as temporary expert advisors on a number of projects. WHO even contracted Manatee County MCD as a whole to conduct a large number of spray trials evaluating a new product formulation for WHO approval.

A selection of other notable research evaluations/collaborations are listed below.

Impact of Aerial Adulticiding on Honey Bee colonies.

In this two-year study, District personnel worked with a research scientist and a local bee keeper to demonstrate that properly timed aerial sprays directly over bee hives have a minimal impact on the colony size and productivity and can actually be lessened by selecting smaller droplet size sprays.
(An ongoing study by a current District scientist is demonstrating that this also holds true for native wild bees)

Impact of Aerial Adulticiding on wild insect populations (aside from mosquitoes).

This season long study was funded by the State and conducted in collaboration with UF research scientists. A number of different insect collection methods were utilized resulting in an enormous number and variety of insect species being collected. The overall conclusion was that our nighttime sprays did not significantly impact other wild insect populations.

Long Distance Drift Studies.

This long term ongoing study is being conducted in-house by District scientists. It is demonstrating the efficacy of different aerial spray products on various local mosquito species whilst also validating the acceptable accuracy of computer-based aerial spray models used for operational spray guidance.

Evaluation of the In2Care Mosquito Trap.

In an effort to discover new and novel approaches to Mosquito Control, Manatee County Mosquito Control in collaboration with In2CareĀ®, conducted extensive semi-field and field studies to evaluate the vector control potential of the In2Care Mosquito Trap on local populations of domestic mosquitoes such as Aedes aegypti.
This species is important as it is considered to be a primary vector of several viruses including yellow fever, dengue, chikungunya and Zika.

Evaluation of a combination of methods to control the Yellow Fever Mosquito, Aedes aegypti.

When local cases of Dengue, Chikungunya and Zika reappeared in Florida over the past 15 years, the District conducted an evaluation of a wide-range of control methods against the vector species, Aedes aegypti through operational research studies. As a result of these studies, the District now has confidence in which combination of methods works best for immediate reduction in the disease-vectoring mosquito populations and uses them whenever local cases are identified.

Importance of Insecticide Resistance Monitoring

The use of insecticides to control mosquitoes in part of an integrated mosquito management program. This approach uses methods to kill mosquitoes based on mosquito biology, life cycle, and the way mosquitoes spread viruses. Mosquito Control districts conduct mosquito surveillance throughout the year to determine if and when control activities are necessary.

Over time, with repeated use of an insecticide, resistance can occur in mosquito populations. This means that the effectiveness of an insecticide is reduced allowing mosquitoes to survive after a spray mission.
In order to reduce resistance or prevent it all together, District scientists conduct resistance testing on local mosquito populations on a regular basis allowing us to detect resistance at an early stage so that we can make management decisions such as changing insecticide useage.


Get In Touch

Manatee County Mosquito Control

1420 28th Ave East
Ellenton, FL 34222