Bactrocera tryoni

The Queensland fruit fly (Bactrocera tryoni) is a species of tephritid fruit fly native to Australia.

Adult flies are about 5 to 8mm in length in adult stage. Their larvae hatch in various fruit species, causing significant damage to crops.

The fly has been the subject of extensive control regimes including a Fruit Fly Exclusion Zone where it is forbidden to take fruit, and post-harvest dipping of fruit in dimethoate and fenthion. As of October 2011, the use of these chemicals was under review by the Australian Pesticides and Veterinary Medicines Authority (APVMA), with dimethoate suspended from use. In May 2012, January 2013 and February 2015 the fly was found in Auckland, posing a risk to horticulture and leading to a quarantine.