Lynda from Central, Fl writes
When using Bifen IT to treat for soil dwelling pests such as sob webworms, the rate is not per gallon of water but per 1000 sq ft as you would use sufficient water to cover the target area and get the product to the pest. Per the product label: To accomplish uniform control when applying to dense grass foliage, use volumes of up to 10 gallons per 1000 square feet. You would use 0.18 - 0.25 fluid oz. per 1000 sq. ft for sod webworms. Higher treatment rates (up to 1 fluid oz. per 1000 square feet) may be necessary if high pest pressure exists and if the grass is maintained taller than 1 inch. In general 1 gallon can cover 1000 sqft but for sod webworms the amount of water needed could be higher depending on the grass foliage, equipment used, how fast you walk, etc.
Answer last updated on: 09/05/2016
