We recommend that you either wait at least one year before planting edibles where Bifen IT has been sprayed or that you excavate the soil in the area you want to plant. You can also create raised garden beds where you would be bringing in fresh soil media.
We do not see any reason why you can't spray Bifen IT and Hi-Yield Atrazine together. For more information on application and dilution, please refer to the product labels of each product.
Unfortunately, we do not recommend Bifen IT in a pressure washer application. We recommend using it either in a hand pump sprayer, backpack sprayer, or hose end sprayer for a lawn application.
Bifen IT could harm lightning bugs/fireflies if they land on a treated surface long enough to receive a lethal dosage.
Bifen IT can be used to kill clover mites and will leave a residual of up to 30 days outside. It will not repel them from the area but instead will continue to kill those that contact a treated surface after application. We have a guide here with more information on treating and preventing this pest. Pets need to be kept out of the area while products are being applied but can return once all surfaces are dry.
Bifen IT cannot be used on areas that will be used for grazing by animals. We do carry other products that can be applied for insect control safely on livestock/livestock areas including Hi-Yield Lawn, Garden, Pet and Livestock Insect Control.
You can water 24 hours after applying Bifen IT.
Generally, after an application of Bifen IT it should take anywhere between 30 min - 1 hour to dry. After the treated area has completely dried it is safe for the pets to re-enter.
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.
For most pests, you will use 1 oz. of Bifen IT per gallon of water to cover 1,000 sq ft. Please refer to the product label for complete application instructions.