Get the most out of your grub control

By Matt Giese, M.S., technical services manager for Syngenta

Early treatment is the key to white grub control, so it’s important to make sure you have the products you need on hand to get started in the spring. 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. 98% of superintendents confirmed that compared to the insecticide they used before, Acelepryn exceeded expectations.1

New for 2023: Learn how you can earn additional savings on purchases of Acelepryn with the GreenTrust® 365 Plan it Your Way bonus. Click here for more information.

See what superintendents across the country are saying about their experiences with Acelepryn:

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

  1. Buy now, pay later
    • GreenTrust 365 qualifiers can defer payment until late June with SummerPay™ terms.
    • Participants can use Acelepryn for grub control between April and mid-June and choose to pay any time before June 24.
    • With purchases 10 gallons or more, Syngenta offers a volume discount.
  2. Season-long control
    • Acelepryn provides season-long control of every key turf-damaging white grub species and caterpillars including black cutworms, sod webworms and fall armyworms.
    • 93% of superintendents agree the spectrum and length of control of Acelepryn saves them from making additional applications throughout the season.1
    • White Grub Control by Application Month
      53% of superintendents make their grub/cutworm application late April/Early May. 18% apply in early April while 14% apply in late May.
      Source: Syngenta Trials
    • Follow the caterpillar recommendations for industry-leading performance against grubs, turf caterpillars and more. Powered by Acelepryn, these recommendations can help superintendents achieve exceptional broad-spectrum control of key turf-damaging insects.

      Target insectTarget timingAcelepryn rateNotes
      GrubsApril8 fl. oz./A
      Grubs + turf caterpillarsMay-June8 fl. oz./ATo help control fall armyworm, roughs should also be treated.
      Grubs + turf caterpillars + billbugsApril-June12 fl. oz./A
      Fall armywormJuly-September2-4 fl. oz./AApply at first sight of damage for rapid knockdown, plus up to 6-8 weeks of preventive protection.
  3. Early applications provide best results
    • Apply Acelepryn in April or May for best results.
      • In the above grub control graph, 53% of superintendents make their grub/cutworm application late April/Early May. 18% apply in early April, while 14% apply in late 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 roughs or highly visible areas. 97% agreed that the wide application window of Acelepryn enables them to apply it when it works best for their course.1
    • One properly timed application of Acelepryn is all that is needed for season-long turf protection.
  4. 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.
    • Acelepryn is a non-neonicotinoid chemistry and has limited impact on beneficial insects and non-targeted insects, including bees.
    • Turf Caterpillar (Including Fall Armyworm)
      Turf Caterpillar (Including Fall Armyworm)
      Source: Syngenta trials, New York, 2009. Merit® 75 WP insecticide was tested in the trials.
      European Crane Fly
      European Crane Fly
      Hunting Billbug
      Hunting Billbug
      Source: Syngenta trials, Pennsylvania, 2006-2007. Merit 75 WP and Aloft® GC SC were tested in this trial.
  5. 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
      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, but it is also an important tool for resistance management as it offers an alternate mode of action to pyrethroid chemistries. Visit for the leading program approach for season-long control of ABW and up-to-the minute application timing in your area.
  6. Guards landscape ornamentals
    Acelepryn was granted a 2(ee) supplemental recommendation in many states, including 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

Considering Acelepryn? Try out our 4 oz. bottle as a trial (covers 22,000 ft2—about three greens). Use it in your traditional hot spots for excellent control. Ask your territory manager about the 4 oz. size.

For additional information on Acelepryn, visit

1Source: 2021 TechValidate Survey (n= 527 Acelepryn users)

Performance assessments are based upon results or analysis of public information, field observations and/or internal Syngenta evaluations. Trials reflect treatment rates commonly recommended in the marketplace.

© 2022 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®, Ference®, GreenCast®, GreenTrust®, Provaunt®, SummerPay™, WeevilTrakSM and the Syngenta logo are trademarks or service marks of a Syngenta Group Company. All other trademarks are the property of their respective owners.

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