Bifen IT - Questions & Answers

Bifen IT is mixed at 1 fl oz per gallon of water per 1,000 sq ft monthly to the listed exterior areas. For 3/4 acre, you will be applying approximate 33 fl oz per treatment to cover 32,670 sq ft. 

There is not a time restriction on how soon you can reseed after applying Bifen IT. You may apply at same time or in separate applications.

Bifen IT is great product for perimeter control. The label recommends using it at a rate of 0.5 oz per gallon of water and it can be reapplied every 30 days. If you’ve been using it for a long time and no longer getting results, you can rotate to a different product, like Demand CS. If you are seeing activity indoors, you can spray on baseboards, cracks and crevices. You may also want to apply a dust into the wall voids like Delta Dust.  We would recommend reading over our Getting Rid of Earwigs article for further tips and information.

Bifen IT is not labeled to be used in pastures or in areas with grazing animals at all.  We would recommend contacting the manufacturer directly for confirmation on reentry time. To our knowledge, it is recommend to keep grazing animals out of the treated areas for the entire growing season. Control Solutions can be reached at 281-892-2500

Bifen IT can be sprayed onto and into the shakes to provide some relief from the silverfish. Be sure to use the highest usage rate of 1 oz of Bifen IT per gallon of water for the fastest knockdown and the longest lasting residual. You will need to reapply once a month to keep up the barrier.

Bifen IT will not affect your trenching treatment done with Termidor SC.  Bifen I/T is considered a repellent.  When treating for ants, you can spray the lawn, trees and shrubs, along with 3 foot up the side of your home, 3 feet out into the soil all the way around the perimeter foundation of your home, around doors and windows and around the eaves and soffits of your home monthly.

Once Bifen IT dries, water will not reactivate the product. You just shouldn't walk on it while it is still wet from the application.

Bifen will not stain the logs as it is a waterbased insecticide. You should note that Bifen will not give your logs lasting protection against termites as it will not be able to penetrate in to the wood. At best a Bifen treatment will last for about 6 weeks. If you want lasting protection you need to use Bora-Care for your application. Bora-Care will penetrate several inches in to the wood and it will last for the life of the wood.

You can use Bifen IT in all of the cracks and crevices along baseboards, door frames, window frames and places where cables pipes and wires enter through the walls and it will help control fleas in that area. Bifen IT cannot be used as a broadcast spray indoors over floors where fleas are known to develop and because of this is not usually chosen for flea control indoors. We recommend you use Ultracide for indoor flea control. It is our recommendation and industry standard that you vacuum immediately before the application of Ultracide and every day or every other day after the application for the next two weeks. Vacuums can physically remove a decent percentage of flea eggs that are in the carpet, along with much of the organic crud that the flea larvae feed on. A critical part of the diet of the larva is dried blood, present there as fecal material from the fleas that are on the pets. Wherever the pets spend time, they will shed the fecal matter and the eggs, so it is extremely important that you focus on these potential hot spots where the pets sleep. A vacuum also will remove a small percentage of larvae, but the larva is pretty tenacious, and will wrap around the carpet fibers down there at the base of the pile, and hold on for dear life as the vacuum passes by. The pupa is even tougher to physically remove, for it uses fibers as part of its "cocoon". The vacuum will stimulate the flea adults still in their pupa form to quickly emerge as the adult, and at this point perhaps be sucked up in the vacuum. Even if they are not removed by the vacuum, at least they now are exposed and susceptible to your treatment.   After two weeks most infestations require that you do a second application of the Ultracide and continue with the vacuuming.

The label does not authorize to apply Bifen IT to any type of carpeting. You will want to focus treat the cracks and crevices of the room along baseboards, corners, door and window frames with a hand pump sprayer for a residual control. We advise to vacuuming consistently and sanitizing the treated area will help eliminate the fleas quicker. We also suggest using an IGR (insect growth regulator) such as Archer IGR to prevent the future infestation from developing for a better control.