The coverage will depend on the type of pest you are treating for and the area that is being treated. Please check the Bifen IT product label to see what concentration and coverage rate your situation calls for. One pint of Bifen IT will make approximately 16-48 gallons of diluted solution and one quart of Bifen IT will make approximately 32-96 of diluted solution. If you need help figuring out the concentration please call customer service at: 866-581-7378
Bifen IT will kill yellow jackets but only if they land on a surface you have treated. Have you tried looking outside in the morning or early afternoon? This is when yellow jackets are most active and chances are you can see where they are going into your home which usually would be under some siding or through a small opening in brick or around a window. If you can locate their entry point then it is an easy fix. Early in the morning or late at night when the yellow jackets are not flying around and not active, you can apply Tempo Dust into the opening using a hand duster. If you can locate the entry point, then this treatment will usually kill all of the yellow jackets within 24 hours. Once there is no more activity, you want to be sure to close the opening with caulk or some other method so future yellow jackets do not try to use the same entry point.
Bifen IT is labeled for millipedes and will kill them when used according to the Bifen IT product label. We recommend using 1 fl oz of Bifen IT per gallon of water for the fastest knockdown and the longest lasting residual. Millipedes are usually going to frequent areas where there are high levels of moisture. There are some non-chemical things you can do to help make your property less favorable to millipedes:
Step 1) Non chemical Methods of Millipede Control
Exclusion:
Eliminate Favorable Conditions:
Edible vegetation treated with Bifen IT should be discarded and not consumed. You should not consume anything in the area treated for one full growing season.
Bifen I/T is one of our most popular products for mosquito control. Bifen XTS is basically the same product, just in a higher concentration, and oil-based instead of water-based. Either sprayer or mister application would be effective with either product as long as the application is thorough. Oil-based products such as Bifen XTS can stain some surfaces. This is not usually a concern in most areas outside, but you should use caution when treating around the siding of a home. Most oil-based products such as Bifen XTS do have a "chemical" odor but it is not especially strong.
Do not spray any bifenthrin product in a way that would contact the pond with direct spray, drift, or runoff.
Mosquitoes lay their eggs in standing water, so if there are any areas of standing water where you are treating, those should be treated as well with Altosid Pro-G Mosquito Larvicide if you prefer not to use BTI Mosquito Dunks.
The Bifen Granules 25lb bag covers 5-10,000 sq ft per bag (depending on application rate used). The Bifen IT is applied at 1 fl oz per gallon of water per 1,000 sq ft. They are equally effective. It would be more cost effective for the liquid on larger areas.
Bifen IT is a great product for spider mites, as well as many other pests. Bifen IT is one of our most popular products and can be used both indoors and outside. Just keep in mind that Bifen IT cannot be used on vegetable gardens or fruit bearing trees or anything you plan on eating. When using Bifen IT or other insecticides/miticides, we would recommend switching miticides every 30 days or so.
Bifen IT is labeled to treat for insects in Poultry Houses. Be sure to review the product label prior to treatment. You must make sure your chickens are out of the area while you apply Bifen and then they can return to the area as soon as it is dry.
Bifen IT is labeled for roaches and can be used indoors. The mixing ratio is 1 fl. oz. per gallon of water.
We would recommend using our Roach Control Rotation A Kit. It comes with everything that you will need to do a complete roach treatment. There is enough product to do multiple treatments.
We would also recommend looking at our Roach Guide. There is a lot of information on how to treat and prevent roaches.
Bifen IT is not labeled for grubs. We do carry grub control products. Please take a few moments to review our treatment article on How to Get Rid of Grubs for information on a successful program.