Mallet 75 WSP Imidacloprid 75% Makes 1200 Gallons 1 pack contains 4 x 1.6oz Controls White Fly (Gen Merit) Imidacloprid 75% Merit is for use in and around Turfgrasses, Trees, Shrubs, Evergreens, Flowers, Foliage Plants, Ground Covers, Interior Plantscapes. And the following crops: Apple, Crabapple, Loquat, Mayhaw, Pear, Quince, Pecan, and Grapes. 6.4 to 8.4 oz of merit covers 1 acre. 3 to 4 teaspoons cover 1,000 sq.ft.