Syngenta Meridian 25WG Insecticide

Product Overview:
Syngenta Meridian 25WG is a broad-spectrum insecticide formulated as a water-dispersible granule (WG) for effective control of various turf and ornamental pests. Its active ingredient, Thiamethoxam (25%), is a neonicotinoid that delivers rapid knockdown and extended residual control by targeting the insect nervous system. Meridian 25WG is absorbed both through contact and systemic action, making it highly effective against soil- and foliar-feeding pests.

Key Benefits:

• Broad-Spectrum Control – Effectively manages white grubs, aphids, caterpillars, leafhoppers, and other insect pests.

• Systemic & Contact Activity – Provides long-lasting protection through root uptake and direct contact.

• Low Use Rates – Requires minimal product for effective pest management.

• Turf & Ornamental Safety – Gentle on turfgrass, ornamentals, and non-target organisms when used as directed.

• Resistance Management – Suitable for integrated pest management (IPM) programs.

Use Rates & Application:

• Turfgrass Applications: 12.7 - 17.0 oz. per acre.

• Ornamental Applications:

  • Foliar Applications: 2.0 - 8.5 oz. per 100 gallons of water.

  • Application to Soil: 12.7 - 17.0 oz. per acre.
    

Use Restrictions & Safety Guidelines:

• Do not apply more than 17 oz per acre per season.

• Avoid applications to blooming plants when bees are foraging.

• Keep out of reach of children and avoid contact with skin, eyes, and clothing.

• Do not apply directly to water sources or allow drift into waterways.

• Personal Protective Equipment (PPE) Required: Long-sleeved shirt, long pants, gloves, and protective eyewear.

Mode of Action & Resistance Management:

• Thiamethoxam (IRAC Group 4A) – A neonicotinoid insecticide that disrupts the nervous system by binding to nicotinic acetylcholine receptors.

• Rotate with different modes of action to prevent resistance buildup.

Conclusion:

Syngenta Meridian 25WG is a trusted insecticide for professional turf and ornamental management, providing superior pest control with long-lasting protection. Its systemic and contact action, along with its safety profile, makes it an excellent choice for maintaining healthy landscapes. 

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.  Always consult the product label for complete application instructions and safety guidelines.  For the most accurate label information please refer to the manufacturer website.