Technical Report #186.
Motoki, M., D.J. Lee, C. Vanderwoude, S.T. Nakamoto and P.S. Leung.
2013. A bioeconomic model of Little Fire Ant Wasmannia auropunctata
in Hawaii. 89 pp.
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Wasmannia auropunctata, known as the Little Fire Ant (LFA), was
first detected on the island of Hawai‘i (the Big Island) in 1999. It was
most probably introduced through imports of contaminated potted plants
from mainland USA. We estimate that LFA has now spread to over 4,000
locations on the Big Island and under current management efforts will
spread rapidly inundating the Big Island in 15-20 years. Increased
efforts in prevention, detections, and mitigation treatments will
suppress existing infestations, reduce rate of spread and decrease long
term management costs, damages, and human stings. Benefits from
increased management are estimated to be $5 billion savings including
$540 million in reduced damages and 2.1 billion fewer sting incidents
over 35 years.