Aircraft back in action for mosquito control

The Mosquito Research & Control Unit (MRCU) is aware that mosquito numbers have remained high in recent weeks, and we understand how frustrating that has been for residents and visitors. Prior to the aircraft returning to service, we had already been making progress and seeing a reduction in the number of mosquitoes, though levels remain above normal for this time of year. We are pleased to share that our aircraft is now operational, and with air support resumed, we are optimistic that numbers will begin to improve more quickly as treatment coverage expands.

For the past two weeks, our teams have relied solely on ground units while our aircraft underwent maintenance. Ground operations are effective for targeted control but cannot cover as much area as aerial treatment. Aircraft missions are the most efficient way to reach large sections of the island affected by Aedes taeniorhynchus — the species responsible for the heavy biting currently being experienced.

Yesterday evening, 6 November, aerial spraying was carried out over South Sound, Red Bay, Prospect, Patrick’s Island, Savannah, Rackley’s, Lower Valley, Northward, Beach Bay and Bodden Town, ending at Midland Acres. This evening, 7 November, operations will focus on the North Side area, followed by the West Bay peninsula and East End over the weekend.

As always, operations are guided by data. MRCU combines field observations, trap counts, public reports and historical trends to determine where and when to target treatments for maximum impact.

Recent testing confirms that mosquitoes are not resistant to the products MRCU uses, and our control measures continue to be effective. The battle against mosquitoes is complex, requiring us to balance many variables while ensuring we protect the environment.

Weather also plays a major role in our operations, and we are monitoring a cold front forecast to affect the Cayman Islands early next week. This may influence flight schedules and follow-up ground work. However, we remain confident and committed to bringing mosquito numbers down to normal levels — or below — for this time of year.

Until mosquito levels are back under control, residents are encouraged to take extra precautions to reduce bites and breeding:

• Wear insect repellent when outdoors, especially during early morning and evening hours.
• Cover up with lightweight, breathable clothing that protects your skin while keeping you cool. Fabrics such as linen or moisture wicking materials can help you stay comfortable while reducing bites.
• Protect your pets by ensuring dogs are up to date on heartworm prevention medication, as the mosquito species currently most active is a known vector for transmitting heartworm.
• Walk your property weekly and empty any standing water from containers, tyres, buckets and plant saucers where mosquitoes can breed.

MRCU thanks the public for their understanding and cooperation as the team works diligently to bring mosquito numbers back under control.

To learn more, visit the MRCU website and social media platforms.