News Release

Haleakalā National Park to move forward with plan to reduce the transmission of avian malaria in forest birds

a small mostly black bird with crested feathers on its head perches on a bare tree branch
An 'Ākohekohe in Haleakalā National Park

NPS Photo by David Ehrenberg

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News Release Date: March 23, 2023

Contact: Jin Prugsawan Harlow

KULA, Hawaii—National Park Service (NPS) officials announced today that they will move forward with a plan to reduce the transmission of avian malaria to threatened and endangered forest birds by suppressing invasive mosquito populations.  

The NPS will use an incompatible insect technique (IIT) which consists of repeatedly releasing incompatible male mosquitoes into the wild to reduce the reproductive potential of female mosquitoes in the project area.    

The release of these male mosquitos, primarily using drones and occasionally helicopters and ground methods, must be conducted repeatedly over time to achieve and maintain significant suppression of the mosquito populations.    

By issuing a Finding of No Significant Impact (FONSI) for the Suppression of Invasive Mosquito Populations to Reduce Transmission of Avian Malaria to Threatened and Endangered Forest Birds on East Maui Environmental Assessment (EA), the park concludes the National Environmental Policy Act (NEPA) process and documents the agency’s decision with the selection of the Proposed Action in the EA that will be implemented.  

The environmental assessment for the project was available for public review between December 6, 2022, and January 23, 2023, with a total of 853 pieces of correspondence received. A summary of the public comments along with agency responses is included in Attachment A of the FONSI document.   

The EA and FONSI are available on the NPS Planning, Environment and Public Comment (PEPC) project site at https://parkplanning.nps.gov/HALE-mosquito under the “Document List” link on the left side of the page.      

The Hawaiʻi Department of Land and Natural Resources (DLNR), a cooperating agency on this project, is preparing its own finding covering actions on state-managed and private lands within the project area.  

www.nps.gov/hale



Last updated: March 23, 2023

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Makawao, HI 96768

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