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Mosquito Control At Nanny Cay

“Anyone seen Avery?”

“He’s doing the mosquitoes,” comes the reply. It’s Thursday.

And Avery has been “doing the mosquitoes” every Thursday for the last five years. You’ll see him wandering around Nanny Cay with plastic bottles of oil and a mosquito-killing sand mix, up-ending, emptying, removing anything that can store water and provide breeding areas for mosquitoes; and squirting his oil solution onto watery areas that can’t be emptied like the tanks in our water recycling plant.

Avery can also be spotted shining his flashlight into places like Blue Water Divers’ dunk tanks looking for the dreaded “wriggler” or mosquito larvae, checking they are following his instructions!


Once he has finished his inspections, he submits a report to the Environmental Health Department.

Avery is pretty confident that if you do get bitten by a mosquito at Nanny Cay, it wasn’t born at Nanny Cay; he can’t be held responsible for the errant ones that fly over from the mainland into Nanny Cay.


However, the war never stops. Nanny Cay recently acquired one of the new In2Care® Mosquito Traps (pictured above), with six more on the way. Using environmentally-friendly alternatives to synthetic pesticides it kills all the mosquito larvae in the trap and the larvicide is carried by mosquitoes to other breeding sites and kills all larvae there. It kills exposed mosquitoes after 5-10 days.

The seven traps should give us enough coverage for the whole of Nanny Cay and hopefully some of the larvicide-covered mosquitoes will get blown, or fly, elsewhere too.

We would like to encourage everyone at Nanny Cay to join the battle. The Aedes Aegypti mosquito is the species spreading the Zika Virus, which is the same mosquito that spreads the Dengue and Chikungunya Virus.

Female mosquitoes lay several hundred eggs on the walls of water-filled containers, anywhere there is potential for catching water, so please keep buckets, tires, kayaks, dinghies, bowls, etc, turned over and tidy up anything that could collect water. They are aggressive daytime biters, who prefer to bite people, and stay in the close vicinity of people.


A little know fact: The eggs stick to containers like glue and remain attached until they are scrubbed off. When water covers the eggs, they hatch and become adults in about a week.

Once a week, empty and scrub, turn over, cover, or throw out items that hold water, such as tires, buckets, paint pots, or trash containers, inside and outside.

Tightly cover water storage containers (buckets, cisterns, rain barrels) so that mosquitoes cannot get inside to lay eggs.

For containers without lids, use wire mesh with holes smaller than an adult mosquito.