Remoa Tri - 0.83 oz/acre

The Collier Mosquito Control District (CMCD) carries on extensive spraying of Remoa Tri

in Collier County residential areas.

Vintage Bay Drive on Key Marco.	5/15/2025
Northwest Golden Gate City.	5/21/2025
Key Marco, Vintage Bay, Isles of Capri and Marco Shores	6/11/2025
Southeastern Golden Gate City	6/11/2025
Port of the Islands and souteastern Golden Gate City	6/13/2025
North Airport Co. area	6/17/2025
North Naples Industrial Park Co. area	6/17/2025
Everglades City, Plantation Island and Copeland.	7/11/2025
Marco Shores, Key Marco and Goodland areas	7/17/2025
Key Marco and Goodland areas	7/21/2025

Remoa Tri is a commercial mosquito adulticide and not a consumer product. Its side effects relate to human exposure during application and its extreme toxicity to aquatic organisms and bees. ReMoa Tri should be handled by trained professionals according to product safety information.

Safety concerns for applicators

According to the product's safety data sheet, the following side effects and safety precautions apply to people handling and applying ReMoa Tri: 

• Harmful if swallowed. Ingestion can be harmful and requires immediate medical attention.

• Moderate eye irritation. Applicators must wear personal protective equipment (PPE) to avoid contact with eyes.

• Allergic skin reactions. Prolonged or frequent skin contact can cause allergic reactions in some individuals.

• Combustible. The product is combustible and must be kept away from heat or open flames. 

  
  

Environmental hazards

Beyond the risks to human handlers, ReMoa Tri poses significant environmental hazards: 

• Aquatic organisms: This pesticide is extremely toxic to freshwater and saltwater fish and invertebrates. Runoff into bodies of water is hazardous.

• Bees: The product is highly toxic to bees and should not be applied when bees are foraging in the area. 

  
  

ReMoa Tri's intended use

ReMoa Tri is a triple-action insecticide space spray used by public health officials and vector control personnel to control susceptible and resistant mosquitoes. The "triple action" comes from a combination of three active ingredients: 

• Abamectin: A natural compound that interferes with the invertebrate nervous system.

• Fenpropathrin: A pyrethroid that also disrupts the nervous system.

• C8910: A blend of fatty acids. 

  
  

Public exposure

When applied correctly by professionals, the concentration of ReMoa Tri in the air is extremely low. This makes adverse health effects on the general public unlikely, though some individuals may be more sensitive to the chemicals. 

If you are concerned about exposure to mosquito control spraying in your area, contact your local mosquito control district for specific information on the products they use and their safety protocols.

Reference:

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.baycountymi.gov/Docs/MosquitoControl/SDSs/ReMoa%20Tri%20SDS.pdf

ReMoa Tri, a mosquito control insecticide, is extremely toxic to aquatic invertebrates and highly toxic to bees. The product's label carries explicit environmental hazard warnings to prevent runoff into bodies of water and drift during applications. 

Hazards to aquatic life

• Extremely toxic to fish and invertebrates: The insecticide is labeled as extremely toxic to both freshwater and estuarine (coastal) fish and invertebrates.

• Contamination risk from runoff: If the product runs off treated areas into a body of water, it poses a significant hazard to fish and other aquatic organisms. 

Hazards to pollinators

• Highly toxic to bees: ReMoa Tri is highly toxic to bees that are exposed to the product directly on blooming crops or weeds.

• Application restrictions: Product labels require applicators to avoid spraying or allowing the insecticide to drift when bees are foraging in the treatment area. 

  Reference

• chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.tol.ca/en/services/resources/animals-and-pest-control/Larvicide-Communication_Bti_FAQs_2019.pdf

Based on available research, the effects of ReMoa Tri on dragonfly nymphs are not explicitly documented. However, as a non-specific insecticide, it is highly likely to be harmful to these aquatic insects, despite being primarily used to target adult mosquitoes.