Bifen IT is just an insecticide, so it will not harm the grass or other desirable plants. The only concern we would have is if you have newly germinating grass then you want to be careful not to put too much stress walking over it or pulling a sprayer over it.
Bifen IT is still the most cost effective professional grade general insecticide on the market. Mix at 1 oz. per gallon of water.
Bifen IT can be applied in a hand pump sprayer, backpack sprayer and mist blower. We recommend contacting the manufacturer of the sprayer for recommended products to be used with your equipment. Most applications are applied at 0.5 – 1 fl oz per gallon of water per 1,000 sq ft. Please refer to the product label for full application and mixing instructions for the targeted pest.
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.