Permethrin SFR 36.8% - Questions & Answers

You don't state what pest you are treating for in your lawn however, when using Permethring SFR 36.8% in your lawn the most common rate used would be .8 oz per gallon of water per 1000 sq. ft. When it states using 4-25 gallons of spray volume, it is telling you to be sure that you are getting a complete coverage for the area that you are treating. So if it takes you 1 gallon of water to treat the 1000 sq. ft evenly then you would use the .8 in 1 gallon. Should it take you 2.5 gallons you would use the .8oz in 2.5 gallons of water to cover that 1000 sq. ft evenly. 

There is not a set temperature required for using Permethrin SFR, it is not an issue when mixing most products and most of the time we suggest something along the lines of warm or room temperature water.

To dilute Permethrin SFR 36.8% into a 0.5% solution, you would use 1 2/3 fluid ounces per gallon of water. Please refer to the product label for complete mixing and application instructions.

 

Permethrin SFR will only control insects.  Please take a look at our selection of Animal Repellents for products that can be used to keep rodents, squirrels, and rabbits away. 

Permethrin SFR is not labeled to be mixed with paint so we cannot give a recommendation as to what strength.  We can not recommend using any product in a way that does not follow the instructions on the product label.

Hose end sprayers are all calibrated differently. For instance, the particular sprayer you have may be calibrated to spray 1 ounce of product per 1 gallon of water but another brand may be calibrated to spray 3 ounces of product per gallon of water. The problem with pre-filled hose end sprayers is that you have no way of knowing how it is calibrated. We recommend that you purchase a new hose end sprayer that is adjustable. We have a great model available on our website called the Chapin Liquid Hose End Sprayer Model 6005. Permethrin SFR is only labeled for mosquito control on livestock premises. A better product for mosquito control outdoors is Talstar P. Talstar P is gentle on vegetation where you will be spraying for mosquitoes and it will last up to one month for mosquito control. When using Talstar for mosquito control, you will use 1 oz of product per gallon of water.

Permethrin SFR 36.8% cannot be used on clothing of any type. We do carry Tick Block which was specifically manufactured for use on clothing for tick control. While Tick Block and Permethrin SFR 36.8% share the same active ingredient the base ingredients are very different and the products are not interchangeable.

Permethrin SFR is not labeled for general mosquito control so we do not recommend it for this use. We usually recommend using Talstar P for mosquito control and it can be used with an IGR such as Nyguard IGR to help sterilize the adults. (Exciter is a pyrethrum which causes a faster kill but it is not an IGR).

Permethrin SFR is not labeled for that use. To treat spider mites, we recommend using Onslaught as a residual to cracks and crevices, floors, window frames, door frames. You can also use sterifab as an on contact kill to be applied to mattress, and furniture.

This product can absolutely be used on dogs for tick control. You can use it diluted with water as a dip, or a general rub down on their fur for control. Please see the bottom of page 16 of the Product Label for exact mixing rates and how to apply properly to your pet.

Perthmethrin SFR can be used around pools but care should be taken to make sure the product is not getting in the pool.

We do not recommend to apply Permthrin indoors at all or for bed bugs. We recommend using one of our Bed Bug kits. It really takes more than one product to eradicate bed bugs. This is why we have specially put our kits together.

Permethrin SFR 36.8% can be used as a cattle spray. The application raio varies, depending on what you are treating them for. Please find page 16 of the product label for application instructions.

Yes, we recommend that you mow your lawn 1-2 days prior to your first application of Permethrin and NyGuard IGR. You will wait two weeks and provide a second application. You can perform a third and/or fourth application if needed depending on the level of fleas (waiting two weeks in between treatments).

These products should not be mixed together. There is no valid reason to mix Onslaught  and  Permethrin SFR together.  They are both synthetic pyrethroids so there would be nothing to gain by mixing these products together. Making a pesticide too strong can actually backfire. Areas that are treated with this overly concentrated spray will be repellent and insects will simply avoid the treated areas prolonging the infestation.

 

Permethrin SFR 36.8% can be used indoors and is an oil based product. It could stain the baseboards and carpets. Please let us know if you have any additional questions.

Permethrin SFR NOT labeled for and should not be used in grazing pastures at all. If you do have a grazing plot/area that was treated with the product, then the grass should be allowed to grow high and then be cut several times before the animals/horses can be turned out to graze again.

Permethrin SFR 36.8% is not labeled for chiggers and may not provide adequate results for you. Onslaught insecticide is labeled for chiggers and can be used both indoors and outdoors as a broadcast spray. Chiggers are not known to infest structures. Chiggers are most likely outdoors in your yard. Many people are lead to believe that the infestation is indoors because they do not feel the effects of the chigger bites right away and then are lead to believe they are being bitten at a later time. Treatments for chiggers should begin in May and could need to continue through the summer as new chiggers move into the area. Treating the entire lawn is of little benefit because chiggers avoid direct sunlight and normally will not infest areas that are mowed or otherwise well maintained. Focus treatment on the unkempt areas of the lawn and lawn edge. You can also use Onslaught to do a barrier treatment around the outside of your home and in your crawl space to stop pests from moving indoors. If you feel strongly that you are being bitten inside by something we would urge you to get a sample of the pest and have it professionally identified by an entomologist. You can find an entomologist in your area by contacting your local cooperative extension office.

Permethrin SFR 36.8% is labeled for certain mites. You first want to ID the type of mite species. You can contact your Cooperative Extension Office for the ID. 

Yellow flies are a relatively new species so there is not anything labeled for it just yet and no research really as to what works for them.  Permethrin SFR may help to eliminate them as it labeled for mosquioes and flies but it is not labeled for mosquitoes around the yard. Something like Talstar P could be used and may offer some relief.  There is just not enough information available about this new pest.