James from Murray Ky writes
Bifen IT is specifically labeled for a number of medically significant spiders including Black Widow, Brown Recluse and Hobo Spiders. It is important to remember that Bifen IT does not give an immediate knockdown but instead works over a period of several hours to kill spiders that have come into contact with the product. Bifen IT will also help to get rid of the insects that spiders feed on and that will help to stop new spiders from moving in. Indoors, spray around all baseboards, door frames, window frames, under appliances, in closets and storage rooms and in areas where utilities enter into the structure. Outdoors you should spray around the bottom of the foundation, on the ground adjacent to the foundation, door frames, window frames and places where the utilities enter into the structure. Brown recluse spiders are a bit trickier to eliminate because they often stay hidden in areas where people do not or cannot spray. We recommend that in addition to the Bifen IT, you also use glueboards in areas where spraying would not be appropriate and to help monitor the infestation (cabinets, closets, under furniture, storage areas)
Answer last updated on: 05/29/2019
