Active Ingredient: Mesotrione - 40%
A selective, systemic herbicide that features a new mode of action for pre and post-emergence grass and broadleaf weed control in several cool- and warm-season turf species—like keeping bentgrass out of your rough. Meso 4SC can also be applied on established or newly seeded turf.
What is the mode of action of Meso 4SC herbicide?
Meso 4SC inhibits a plant enzyme called HPPD that is essential to photosynthesis and prevents the formation of carotenoids in susceptible plant species. Without carotenoids, light energy and by-products of photosynthesis will destroy chlorophyll and cell membranes. This results in bleaching of leaves followed by necrosis and death of the plant.
How quickly does Meso 4SC work?
Once absorbed, Meso 4SC quickly translocates throughout the plant. Weed growth is suppressed soon after application, as photosynthesis is disrupted. Death of the plant usually occurs within two to three weeks.
What turf species can Meso 4SC be applied to?
Meso 4SC can be applied to many of the turf types commonly found on fairways, roughs, or for sod production, such as Kentucky bluegrass, perennial ryegrass, tall fescue, fine fescue, centipedegrass, and St. Augustinegrass (sod only). Lower use rates are recommended for perennial ryegrass, fine fescue, and St. Augustinegrass. Meso 4SC is not for use on putting greens.
Herbi-Oil recommended being used with this product during hot Summer months to keep Meso 4SC from evaporating before it has been absorbed by the plant sprayed.
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