Primesource Meso 4SC Select — Turfgrass Herbicide for Pre & Post-Emergence Weed Control

Overview

Primesource Meso 4SC Select is a Group 27 herbicide designed for turfgrass environments. It delivers both pre- and post-emergence weed control and is absorbed systemically through leaves, roots, and shoots, supporting established lawns, overseeding efforts, and renovation projects alike. This versatility can help manage weed pressure while you work toward a healthier, more even turf.

With the ability to target more than 45 broadleaf weeds and grasses, Meso 4SC Select offers a flexible option for seasonal maintenance and new seedbeds. Its mode of action focuses on inhibiting photosynthesis in susceptible plants, providing a mechanism for selective control when applied with appropriate rates and timing. While results will vary with conditions, many turf managers appreciate the potential to reduce competition as grasses establish themselves.

Weed targets and capabilities

• Crabgrass (pre- and post-emergent),
• Ground ivy,
• Yellow foxtail,
• Yellow nutsedge,
• Dandelion,
• Broadleaf weeds and grasses beyond the listed targets

Application timing and usage scenarios

• Can be applied anytime you are seeding, including overseeding established turfgrass
• Suitable for bare ground seeding or renovation projects
• Effective for post-emergent control of tough weeds
• Systemic uptake through leaves, roots, and shoots supports movement within treated plants
• Not For Sale to AZ, OR, WA, NM, MT, ID, WY, NV, AK, HI

Practical notes and usage considerations

Always follow label directions for mixing, rates, and safety. Results depend on weed stage, weather conditions, and correct timing. Use as part of an integrated turf management plan to support ongoing lawn development and maintenance.

Benefits at a glance

• Flexible application around seeding and renovation cycles
• Broad weed target spectrum, including common turf invaders
• Systemic action that compounds across plant tissues for effective coverage
• Suitable for both pre- and post-emergence control in turf settings

Real-world scenarios vary by environment. For residential lawns, you might integrate Meso 4SC Select during seedbed preparation or while overseeding thinning areas. In commercial or sports turf, it can align with maintenance schedules to balance weed suppression with ongoing growth and irrigation practices. Always consider local regulations and the product label when planning your spray program.