The aircraft must fly low in order to accurately apply treatment to standing water and other areas where mosquito larvae develop. Multiple passes help ensure the target areas are fully treated.

GRAND CAYMAN, Cayman Islands (26 February 2026) – The Mosquito Research and Control Unit will begin aerial larviciding operations in parts of Grand Cayman as part of its ongoing mosquito control programme.

Residents in the following areas can expect to see the MRCU aircraft flying at a low altitude and making multiple passes:

  *   Around the airport
  *   Barkers
  *   Camana Bay
  *   Old Prospect Point
  *   Salk Creek

These flights are carefully planned and necessary to ensure effective coverage of mosquito breeding sites. The aircraft must fly low in order to accurately apply treatment to standing water and other areas where mosquito larvae develop. Multiple passes help ensure the target areas are fully treated.

Larviciding takes place during daylight hours. This is different from adulticiding, which typically occurs just after sunset.

Larviciding targets mosquitoes in their immature stage, before they become flying adults. By treating breeding sites early, MRCU reduces the number of mosquitoes that will later emerge. Adulticiding, on the other hand, targets flying adult mosquitoes to quickly reduce nuisance levels when needed.

Every female mosquito that reaches adulthood can lay hundreds of eggs. By interrupting that cycle early, larviciding plays a critical role in keeping mosquito populations at practical and manageable levels.

No action from the community is necessary. The products used are approved and applied in a manner that protects public health and the environment.

Weather conditions, including wind and rainfall, may affect flight schedules.

MRCU thanks the public for its continued support as teams carry out this important work to help maintain a comfortable and healthy environment across the Cayman Islands.

To learn more, visit the <https://linktr.ee/CaymanMRCU?utm_source=linktree_profile_share&ltsid=c17f6b01-6596-4a30-b513-41bd031bff8e> MRCU website and social media platforms<https://linktr.ee/CaymanMRCU?utm_source=linktree_profile_share&ltsid=c17f6b01-6596-4a30-b513-41bd031bff8e>.

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About the Mosquito Research and Control Unit (MRCU):
The MRCU is dedicated to safeguarding the health, environment, and quality of life of the people of the Cayman Islands by conducting innovative, science-based mosquito surveillance, research and control operations.