Featured Article | GreenCast | Syngenta

Control unwanted grubs and more

By Matt Giese, technical services manager for Syngenta

White grubs attack golf courses regularly from one year to the next. Once damage is suspected or scouting indicates a need for treatment, it becomes more difficult to control them, so an early, preventive treatment is ideal. Golf course superintendents can depend on Acelepryn® insecticide for exceptional, season-long control with a single application. Acelepryn is available as a liquid or granular formulation.

Here are some of the key benefits of applying Acelepryn on your course to fight against unwanted grubs and other insects:

Wide spectrum of control: Acelepryn provides season-long control of every key turf-damaging white grub species and caterpillars including black cutworms, sod webworms and fall armyworms. The chemistry in Acelepryn targets turf insects with its active ingredient, chlorantraniliprole. Acelepryn makes an excellent rotation partner with other insecticides.

White Grub Control Acelepryn

Source: Syngenta Trials

Early applications provide best results: Unlike other grub control materials, Acelepryn provides the best results when you apply in April or May. The wide application window gives superintendents the flexibility to apply when the timing is right for their course operations and can be timed with a pre-emergent herbicide, especially for high-maintenance rough or highly visible areas. Plus, one properly timed application of Acelepryn is all that is needed for season-long turf protection.
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Favorable environmental profile: Acelepryn binds to soil particles and has low water solubility, which means its movement in the soil toward ground or surface water is limited. Additionally, Acelepryn is a non-neonicotinoid chemistry and has limited impact on beneficial insects and non-targeted insects, including bees.


Source: Syngenta trials, New York, 2009. Merit 75 WP was tested in the trials.


Source: Syngenta trials, Pennsylvania, 2006-2007. Merit 75 WP and Aloft GC SC were tested in this trial.

Protection beyond grubs

Besides delivering outstanding grub control, Acelepryn has proven performance controlling regional pests like billbugs, European crane fly and caterpillar species such as fall armyworm, black cutworm and sod webworm.

European and Common Crane Fly


Source: Dr. Ben McGraw, New York, 2018.

A properly-timed application of Acelepryn is also highly effective against the larvae of the annual bluegrass weevil (ABW), a destructive pest in the northeastern U.S. Not only does Acelepryn offer best-in-class protection across this broad spectrum of turf pests, it is also an important tool for resistance management as it offers an alternate mode of action to pyrethroid chemistries. Visit WeevilTrak.com for the leading program approach for season-long control of ABW and up-to-the minute application timing in your area.

Guard your landscape ornamentals with Acelepryn
Acelepryn was granted a 2(ee) supplemental recommendation in the state of California expanding its use to control leaf-feeding Japanese beetle adults on ornamental plants in exterior landscapes and interior plantscapes. It can be applied in three ways:

  • Directly on leaves to control leaf-feeding caterpillars, Japanese beetle adults and lace bugs
  • Injected into the soil to combat birch leafminers, lace bugs and aphids
  • To the bark to ward off pests such as clearwing borers


​​​​​​​For additional information on Acelepryn, please visit www.GreenCastonline.com/Acelepryn or download this white paper about Acelepryn as a reduced-risk* option for insect pest control.

*A reduced risk pesticide is defined as one which may reasonably be expected to accomplish one or more of the following; (1) reduces pesticide risks to human health; (2) reduces pesticide risks to non-target organisms; (3) reduces the potential for contamination of valued, environmental resources, or (4) broadens adoption of IPM or makes it more effective. Acelepryn qualifies under one or more of the above criteria.

Performance evaluations are based solely upon interpretation of public information and field observations. Trials reflect treatment rates commonly recommended in the marketplace.

©2020 Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. Acelepryn is a Restricted Use Pesticide in the State of Hawaii. Ference is a Restricted Use Pesticide in the State of New York. Ference is not for Sale, Sale Into, Distribution and/or Use in Nassau, Suffolk, Kings, Queens Counties of New York State unless permitted under FIFRA Section 24(c) Special Local Need Registration. Acelepryn®, Ference®, GreenCast®, Provaunt®, WeevilTrak℠ and the Syngenta logo are trademarks or service marks of a Syngenta Group Company. All other trademarks are the property of their respective owners.