Archer IGR should not be applied to edible vegetation or where it may drift onto edible vegetation.
Yes, Archer IGR and Permethrin SFR can be mixed together and applied at the same time. The mixing rate is 1 2/3 fl oz of Permethrin SFR and 1 fl oz of Archer IGR per gallon of water. This can be done every 21 days as needed. Be sure to use a bait gel, such as Maxforce Magnum as well inside of cabinets and drawers. Be careful not to spray the bait with insecticides because it will contaminate it and the roaches will not consume it.
Archer IGR can be applied to hardwood floors as a crack and crevice treatment only. This means along baseboards, under and around appliances, behind bookcases, door and window frames, inside cabinets and closets, etc per the product label.