There are fruit fly posters at the airport and the wharf, as well as quarantine bins at the airport. Englberger , K., Heimoana, V. 1996. Emergency response plan for Tonga in case of exotic fruit fly incursion. Heimoana , V., Tunupopo, F., Toleafoa, E., Fakanaiki, C. 1997. Fruit fly fauna of Tonga, Western Samoa, American Samoa and Niue.
Fruit fly management in the Pacific.
Keyserlingk , N. von 1982. Ministry of Agriculture, Forests and Fisheries. Litsinger , J.A., Fakalata, O.K., Faluku, T.L., Crooker, P.S., von Keyserlingk, N. 1991. First international symposium on fruit flies in the tropics. Nemeye , P.S. 1995.