For golf superintendents and turf managers
Grub prevention programs for golf course turf
Stopping grub damage before it starts, and choosing the right application format for your operation.
Grub damage shows up as dead, spongy turf that pulls up like carpet, and by the time it’s visible, the grubs have already done the damage. Prevention beats treatment here by a wide margin: a well-timed preventive application stops grubs before they establish, while curative treatment after damage appears means both a bigger insecticide investment and turf recovery time you don’t get back mid-season.
Timing matters more than product choice
Imidacloprid, the active ingredient in both Grubs Away Granular and ImidaPro 2SC, works best applied before egg hatch. Once grubs are established and feeding, control gets harder and results get less reliable. In most regions that means application in the May through mid-August window, timed ahead of the peak egg-laying period for the grub species you’re managing. Waiting until damage is visible means you’ve missed the preventive window entirely.
Choosing your format
Broadcast granular
Grubs Away Granular
0.5% Imidacloprid, applied with a spreader and watered in to activate. A natural fit for large open areas like fairways and roughs where broadcast equipment is already in use.
30 lb. bag
Liquid spray
ImidaPro 2SC
21.4% Imidacloprid, applied with spray equipment. Better where a spray program already covers other products, or where precision spot-treatment matters more than broad coverage.
12 x 1 qt, 4 x 1 gal
Worth being direct about this: choosing between them is a logistics decision, spreader versus sprayer, broad coverage versus precision, not a resistance management strategy. Since both carry the same active ingredient, using one after the other in the same season doesn’t rotate chemistry the way alternating fungicide modes of action does.
Application and activation
Both products are systemic and need water to move the active ingredient into the root zone where grubs feed:
Apply at label rate for your target pest and turf type
Water in with at least 0.5 inch of irrigation or rainfall immediately after application
Time application ahead of egg hatch for your region and grub species, not after damage appears
Avoid application when the ground is saturated, imidacloprid needs to bind to soil, not run off
A note on resistance
Imidacloprid is a neonicotinoid, and like any single mode of action, repeated exclusive use over multiple seasons carries resistance risk. If grub pressure on a property has been managed with imidacloprid-based products for several consecutive years, it’s worth discussing a genuinely different mode of action for at least one season in the rotation, rather than alternating between two imidacloprid products and assuming that counts as rotation.
Building a grub prevention program for your course?
Contact Agrisel for pricing on Grubs Away Granular and ImidaPro 2SC for your program.