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Updated on 1 December 2025
5:21 PM
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Mosquito Research
& Control Unit

Enhancing the quality of life for residents and visitors to the Cayman Islands using a research-based, cost effective and integrated approach to mosquito control.

Latest News

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Mosquito control operations stepped up in Little Cayman
28 November 2025 | Press Release

In response to the increased need for mosquito control, teams will now travel to Little Cayman each Friday to carry out enhanced treatments and respond to service requests.

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Aircraft larviciding under way across the Cayman Islands
26 November 2025 | Press Release

Treatments are now under way in Grand Cayman and will continue over the next two weeks. Once Grand Cayman has been completed, operations will move to Cayman Brac and Little Cayman, with aerial larviciding scheduled for early-mid December.

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Field teams working to limit mosquito emergence
22 November 2025 | Statement

MRCU crews are working in swamps across Grand Cayman after high larvae levels were detected. A mosquito emergence is expected on 24 November, with higher numbers in West Bay. MRCU will conduct adult mosquito control as necessary and conditions allow.

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Featured

MRCU in training
Prioritising Safety Through Continued Training
10 June 2025 | Blog

At the Mosquito Research & Control Unit (MRCU), safety is always a top priority — for our team and for the wider community. That’s why we’re committed to ongoing staff training and continuous education to ensure our operations meet the highest standards.

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MRCU Enhances Safety with Respirator Fit Test
04 March 2025 | Blog

The Mosquito Research and Control Unit (MRCU) is taking workplace safety to the next level with its recent AccuFit 9000 - Digital Respiratory Fit Testing Training, ensuring that employees who work with chemicals have the proper protection they need.

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Year 6 students from Creek and Spot Bay Primary Schools visit MRCU Cayman Brac
Students Visit to MRCU Cayman Brac
13 February 2025 | Blog

The Mosquito Research and Control Unit (MRCU) in Cayman Brac had the pleasure of hosting 15 enthusiastic Year 6 students from Creek and Spot Bay primary schools, on 13 February, for an educational and interactive tour of our facilities.

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What We Do

Our Purpose: Protecting Today, Safeguarding Tomorrow.

The Mosquito Research & Control Unit (MRCU) is dedicated to protecting the health and well-being of the Cayman Islands by reducing mosquito populations and preventing the spread of mosquito-borne diseases. Since 1965, we’ve used a combination of physical, biological, and chemical methods to manage mosquito levels in a way that’s effective, safe, and sustainable. Through our research, public outreach, and sharing of resources, MRCU is committed to being a trusted source of knowledge and support. We strive to empower residents with the information and tools they need to create a safer, healthier community.



Educational Video Series

Larviciding by Plane

Keeping Mosquito Population Down

Mosquito Larve Swamp Inspection with Ricardo Caballero

Watching Out for Oropouche Virus

Property Inspection in West Bay

Roundtable with MRCU

Key Persons

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Dr Alan Wheeler
Director
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Kris New
Deputy Director, Research & Ground Operations
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Edith Mwando
Deputy Director- Human Resources & Administration
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Kevin Watler
Public Education Outreach Officer & Deputy Information Manager

Contact Us

Address

Mosquito Research & Control Unit Headquarters

99 Red Gate Road, George Town, Marco Giglioli Centre

PO Box 201 Cayman Brac KY2-2101 CAYMAN ISLANDS

Aircraft Section

36 Owen Roberts Drive, George Town

Owen Roberts International Airport

Cayman Brac

223 Songbird Drive, Stake Bay

PO Box 201 Cayman Brac KY2-2101 CAYMAN ISLANDS

Office Hours


Monday - Friday: 8:30 am - 4:30 pm



Email, Telephone and Web