Prime Source Imidacloprid 75 WSP Select

Prime Source Imidacloprid 75 WSP Select
Prime Source Imidacloprid 75 WSP Select

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Product Overview

Prime Source Imidacloprid 75 WSP Select is a systemic insecticide with both curative and preventative action that provides a long-lasting control on a wide range of pests such as white grubs, crane flies, and leafminers, mealybugs, and many more listed insect pests. The active ingredient has enough residual activity that applications can be made prior to the target pests' egg-laying activity. Can be applied to golf courses, sod farms, commercial, residential, industrial, and municipal turf areas, landscape ornamentals, and interior plantscapes. For easy tank mixing and measuring, the powder is packaged in compact water-soluble pouches.  Available in a bag of four 1.6-ounce packets.

*Please note:  This product is intended for large volume (20-50 + gallons) applications and would not be recommended for small residential applications.

Features and Specs

Active Ingredient Imidacloprid - 75.0%
Target pests White grubs, Crane Flies, Leafminers, Mealybugs, and many more are listed as pests on the label.
For use in Turf, Landscape Ornamentals, Fruit and Nut Trees, and Interior Plantscapes.
Application The application can be made by foliar application or soil applications including soil injection, drenches, and broadcast sprays.
Pet safe Yes, if used as directed on the label.
Formulation Water-soluble Powder.
CO, CT, MA, MD, ME, NJ, NV, NY, RI, VT (Restricted To Licensed Applicators Only)
Dimensions 7.95 x 8.95 x 2.20 inches.
Special Features Provides quick knockdown and superior control of pests.
Shipping Weight 0.48 lbs
Manufacturer Prime Source (Mfg. Number: 84507PS4416)
EPA Registration 89442-11



  • Proven performance – long-lasting insecticide
  • Broad-spectrum systemic action
  • Curative and preventative properties
  • Convenient water-soluble pouches for easy tank mixing and measuring


  • Golf courses
  • Sod farms
  • Commercial turf areas
  • Residential turf
  • Industrial turf areas
  • Municipal turf areas
  • Landscape ornamentals
  • Interior plantscapes


Turf pests controlled

  • Billbug larvae
  • European crane flies
  • Hairy chinch bugs
  • Mole crickets
  • White grubs, including black turfgrass ataenius beetles
  • European chafers
  • Japanese beetles
  • May and June beetles
  • Northern masked chafers
  • Oriental beetles
  • Southern masked chafers

Ornamental pests controlled

  • Adelgids
  • Aphids
  • Asian long-horned beetles
  • Borer
  • Elm leaf beetles
  • Emerald ash borers
  • Hemlock woolly adelgid
  • Japanese and other leaf-feeding beetles
  • Lace bugs
  • Leafhoppers
  • Leafminers
  • Mealybugs
  • Pine tip moths
  • Royal palm bugs
  • Sawfly larvae
  • Scale insects
  • Thrips (suppression)
  • Vine weevils
  • Whiteflies


  • Binds to nicotinic acetylcholine receptors causing overstimulation and disruption of nerve transmissions

Registered States: AL, AR, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV

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Questions & Answers

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What is the application rate for soil drenching a multi-trunk Crape Myrtle tree? How many oz of Prime Source Imidacloprid 75 WSP Select and how much water is needed?

Example, one crepe myrtle tree has a total of 4 trunks measuring 36 inches in trunk diameter total (11


Imidacloprid 75 is applied at 1.6 oz (1 packet) per 12 to 48 inches of cumulative trunk diameter for tree(s) intended to be treated. For Soil Drenching, use no less than 10 gallons of water per 1,000 square feet as a drench around the base of the tree, directed to the root zone. Any plastic or other barrier that can prevent drench solution from reaching the root zone must be removed.
Please review the product label for more information. 


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