In this 2010 Memo from the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS), USDA - APHIS terminates the tamarisk biocontrol program. Until concerns regarding the southwestern willow flycatcher are alleviated and the program activities are officially reinitiated, any unauthorized human assisted movement of Diorhahda spp., particularly into the critical habitat of the southwestern willow flycatcher, is not authorized by APHIS, and may constitute a violation of the Endangered Species Act which could result in criminal punishment and/or fines.