Bifen IT - Questions & Answers

For Armyworm control, Bifen IT is applied at 1 fl oz per gallon of water per 1,000 sq ft with repeat applications done every 30 days.

Please view our Armyworm Treatment Guide for more information. 

 

Bifen IT is a great product for all the insects you have mentioned, but another good product to be used outdoors is Cyzmic CS. That is because Cyzmic CS has a CapVantage Micro Encapsulation which means that each droplet of insecticide is encased in a protective microscopic capsule, providing a long residual, even in direct sunlight or other harsh weather conditions. The only insect Cyzmic CS is not labeled for that you mentioned is crane flies. Most products are still only going to provide a 30 day residual outdoors in the summer. Be sure to check out our Pest Guides for more details about the most common structural pests.

When using Bifen IT for armyworms irrigation is not necessary. You actually need to try to have no irrigation or rainfall for at least 24 hours after the application. Under chinch bug treatment it does advice that in order to optimize the penetration of the insecticide you can water the area prior to the treatment. If grass is being kept at a long mowing height or if the thatch layer is excessive, use higher volume treatments. It may be necessary to use higher application rates (up to 1 fluid oz. per 1000 square feet) to control populations made up of both adults and nymphs in mid-summer. Complete instructions are on the product label for each pest as well.

Bifen IT is not permitted to use in a ULV or a thermal fogger.  Bifen IT is only permitted to be used in a hand pump or gas powdered sprayer with larger droplets.  Bifen IT can clog foggers. Only oil based fog solutions are usually advised to be used in a thermal fogger.  Our recommendation would by Pyrocide 100, which is a fogging solution that is great for mosquitoes and flying insects. Most fogging solutions do not leave a long residual and should be re-applied for optimum results.

Bifen IT should be applied every 30 days.  It can take a few days to start seeing results, especially if you are dealing with a heavy infestation.  

Bifen I/T is a concentrate that can be used in tank sprayers or hose end sprayers, as long as the hose end unit has a dial to select the correct mix rate. The Bifen Product Label states to use anywhere between 0.5 and 1 oz per gallon of water dependent on the pest you are treating for and severity of the existing population. This means you can choose either of these settings on your dial of your hose end sprayer, and that is the amount of concentrate it will pull and disperse per gallon of water. 

Bifen IT insecticide is comparable to the very popular Talstar, but is much less expensive. Bifen IT provides excellent control of over 75 insect pests, leaves a long-lasting residual for up to 3 months indoors and one moth outdoors, is odorless, non-staining, dries clear and is safe around children and pets when used as directed.  Bifen IT and the other bifenthrin products can be used both indoors and outdoors, on lawns and ornamentals, and even in the kitchen. Be sure to keep pets out of the treated area until it has a chance to fully dry. Once completely dry, Bifen IT is completely safe for your pets.

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 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.