The U.S. Department of Agriculture’s Animal, Plant and Health Inspection Service has amended its foreign and domestic quarantine regulations on the movement of Hass avocados.

The amendment, released July 1, removes trapping and bait spray treatment requirements for various species of fruit flies on hass avocados from Michoacan, Mexico. The change was warranted, the service said in a statement, because research has demonstrated that hass avocados have limited host status for the fruit flies.

The service also amended, based on the same research, its domestic quarantine regulations to permit interstate movement of hass avocados that had been quarantined due to potential Mexican fruit fly or sapote fruit fly infestation — provided that the fruit is safeguarded after harvest in accordance with specific measures.