Meridian 25WG Insecticide | GreenCast | Syngenta

Product Overview

Meridian 25 WG Insecticide Controls Larvae of Key Turf Insects

Meridian® 25 WG insecticide provides foliar and systemic control of grubs and insects in turf. It has a wide application window and does not have to be watered in until up to 7 days after application. It is also effective on a wide range of ornamentals around golf courses, residential lawns and interiorscapes. The active ingredient, thiamethoxam, works both through insect ingestion and contact activity.

Key Features

  • Now labeled for chinch bug control
  • Broad-spectrum insect control, including larvae of Asiatic garden beetle, billbug, black turfgrass ataenius, Japanese beetles, May and June beetles and chafers.
  • Quick, effective curative control

Key Benefits

  • Wide application window allowing flexibility in application timing
  • Reduced need for watering-in after application
  • Metabolizes slowly in turfgrass, allowing for extended-control with good knockdown activity

Download Supporting Meridian 25WG Documents

2017244201761173724_CraneFly-SolutionsSheet.jpg PDF
Crane Fly Solutions Sheet(PDF)

Features symptoms, activity, life cycles and control options for the common crane fly and European crane fly.

2019721201993172039_portfolio-thumbnail.jpg PDF
Golf Portfolio Brochure(PDF)

See how the Syngenta portfolio of products can lead to unrivaled turf quality on golf courses.

20182262018824195442_MeridianSellSheetFINAL.jpg PDF
Meridian Insecticide Sell Sheet(PDF)

Features information about using Meridian for preventive and curative control of chinch bugs, ants, grubs and other turf insect pests.

201913220191122161216_Sportsturf-pp.jpg PDF
Sports Turf Brochure(PDF)

See how the Syngenta portfolio of products can lead to unrivaled turf quality on athletic fields.




Invest in proven insect control that lasts in St. Augustinegrass

Now that summer is here, insect populations are ramping up and could cause significant damage. St. Augustinegrass landscapes, in particular, are very susceptible to damage from sod webworms, white grubs and southern chinch bugs, especially if these pests aren’t controlled early in the season.  Read more »


Plan Ahead for Preventive Control of European Crane Fly

There are more than 1,000 species of crane flies native to North America. Of these, only two types — the European crane fly (Tipula paludosa) and the common crane fly (Tipula oleracea) — cause damage to golf courses, sports fields and lawns in the U.S.  Read more »


Take Immediate Action with Advion Fire Ant Bait

Ants on the golf course can cause a variety of problems, ranging from disruption of putting surfaces, damage to mower reels or painful stings to customers or workers. Fortunately, golf course superintendents have several options to effectively control these pests as part of their insecticide program.  Read more »


Time For Season-Long Grub Control With Acelepryn

Acelepryn® insecticide is the standard for grub control with excellent performance. A single application, applied early, delivers season-long control of grubs, billbugs and turf caterpillars such as armyworms, cutworms and sod webworms.  Read more »