Imported Fire Ant; Approved Treatments

We are amending the imported fire ant regulations to add the insecticide fipronil (Chipco[reg]) to the list of chemicals authorized for the treatment of regulated articles and to provide instructions for its use in soil or potting media and on grass sod. This action makes another authorized treatment available to persons wishing to move containerized plants and commercial grass sod interstate from quarantined areas. We are also updating the regulations by making the rates of application for chlorpyrifos (Dursban[reg]), a currently authorized insecticide, consistent with current product labeling.