Bifen IT - Questions & Answers

Yes, Bifen IT can be used to treat fire ant mounds directly as well as broadcast over the lawn. Please view our How to Get Rid of Fire Ants Guide for step by step instructions and a helpful video. 

Bifen IT cannot be used in animal grazing pastures.  Essentria All Purpose Insecticide Concentrate can be used in animal grazing pastures for ant and tick control.

Yes, Bifen IT is safe to use on St Augustine. Be sure you are not spraying during the heat of the day as the water can magnify the sun rays and scorch your grass. 

There is no specific or ideal time of the day for spraying Bifen IT.  Some people opt to spray outdoors in the early morning, when there is a lessor amount of insect activity.  You can refer to the product label for complete application instructions, and use as directed.

Bifen IT is not labeled for Bermuda mites (eriophyid mite) but we would advise to consider a product like Triple Crown T&O Insecticide.

Triple Crown T & O Insecticide is specifically labeled for the Eriophyid Mite and applied at 7.5 fl oz per 100 gallons of water (0.07 fl oz per gallon of water). Per the MITES footnote on page 5 of the product label, to ensure optimal control of eriophyid mites, apply in combination with the labeled application rate of a surfactant. A second application, five to seven days after the first, may be necessary to achieve acceptable control

Bifen IT should NOT be applied to kitchen counters only listed areas on the label only. 

Talak 7.9 should not be applied to any edible vegetation. 

Bifen IT would be a good choice for grasshopper control. You should start applications before the grasshoppers have a chance to hatch for best control. If you already have grasshoppers you can use Bifen at the highest usage rate of 1 oz of product per 1 gallon of water for the quickest knockdown. Use sufficient amounts of water to help the product get to the soil layers. Once the Bifen has dried it will be completely safe for pets and children to resume their normal activity in the areas that have been treated. The Bifen is safe to be used on anything non-edible in the yard and will not harm trees, bushes, or flowers.

Yes, Bifen IT can kill large roaches such as German cockroaches. You would dilute at the highest application rate, 1 oz. of Bifen IT per gallon of water. Please take a few moments to review our Roach Prevention Guide for more tips on how to prevent roach infestations.

Bifen IT has a shelf life of 3-5 years if kept in a cool dry area. If you notice separation, that is normal and you can shake it up and it still be effective. 

Bifen IT can be applied during the day in temperatures above 50 degrees and will not be effected by colder temperatures at night once dry.  At the highest rate (1 oz per gallon) it can last up to 30 days outside.
 

Yes, you can spray Bifen IT from a Stihl SR 200 backpack sprayer.

It is recommended that once you mix Bifen IT with water you should use it up within 24 hours.

Bifen IT is labeled for "weevils" in general and the active ingredient Bifenthrin is known to be effective for white pine weevils. It is important when using a foliar application that treatments start when adult weevils first start to appear in spring, usually around mid-April. At this time, Bifenthrin seems to be the only active ingredient available to homeowners for white pine weevil control. We also suggest you contact your local cooperative extension office for more tips on the best treatment time in your specific area.

Unless the plants were actually sprayed you do not have to worry. Bifen IT does not move through the soil or turn into a vapor of any sort.

Bifen IT would be a sound choice for exterior insect control. Bifen IT lasts for up to a month outdoors and is labeled for over 75 different crawling and flying insect pests.

That's awesome Bifen IT has been doing such a great job for you. To treat the Earwigs, please refer to our article Getting Rid of Earwigs. There are many steps you can take to treat and prevent earwigs and Silverfish. By following the steps in our article you will also help to eliminate the Silverfish as well. You also may want to try a residual spray like Demon WP that is labeled for earwigs and silver fish. You want to spray the entire perimeter indoors and out.

The Cy Kick CS you have been using is a great product for Scorpions but we do understand the need for more cost effective options. You want to go with a product that will sit on top of the surface better than the Bifen IT. If you dont have any dark surfaces to treat, you could use a product like Cyper WP. It is a wettable powder you would mix with water and spray in the same manor you would the Cy Kick CS. A 1lb jar will yield 24-48 gallons of mixed solution depending on the mix ratio you use. If you do have dark surfaces to treat and you are worried about a visible residue, you could swap to something like Equil Lambda 9.7. The problem with treating for scorpions is they are so difficult to kill that it requires a higher dose of chemical per gallon with most products, and a wider area you have to cover. There is not going to be an huge difference in price between many of the products as they all use roughly the same amounts. The Onslaught FastCap Spider and Scorpion Insecticide is a newer product that is supposed to give a better/faster knock down and a longer residual. It may be worth it to try this product as it will give you a few more gallons of solution than the Cy Kick and you may have to spray less often.

Bifen IT has a residual of 90 days indoors and 30 days outdoors. Repeat application should only take place if there are signs of renewed insect activity and must not exceed one application per 7 days.

Please view the product label for listed insects and more information. 

Bifen IT should not harm carpets, but it also is not labeled for broadcast application to carpets.