Why are there white weeds growing in your new lawn?

2013-05-12 10.43.422013-05-13 13.11.36Always Green is a Licensed Applicator through RIDEM to apply herbicides, pesticides and fungicides to lawns. We have been trained to safely use these products without hurting your lawn or the environment. We are always looking for ways to improve our products to give you the best lawn possible.

This season we have introduced a new product into our hydroseed mix called  Mesotrione. This herbicide will control weeds up to one month while your new lawn is filling in. Prior to this we were only able to prevent crabgrass for up to a month. With this product we are now able to prevent, and control many broadleaf and grassy weeds.

Mesotrione works by inhibiting HPPD (p-Hydroxyphenylpyruvate dioxygenase), an essential enzyme in the biosynthesis of carotenoids. Carotenoids protect the chlorophyll, the pigments in plants responsible for photosynthesis, from excess light energy.

Without carotenoids, light energy destroys the chlorophyll, causing new growth to turn white and disrupting cell membranes, resulting in necrosis and death of susceptible plants.

After application, mesotrione, it is absorbed by leaves and roots and rapidly translocated in the xylem and phloem of susceptible plants. In newly germinated weeds, Tenacity is absorbed through roots and shoots and therefore the plants fail to emerge or die shortly thereafter.

Home lawn grasses like Kentucky bluegrass, perennial ryegrass and fescue are able to tolerate Tenacity by rapidly breaking down mesotrione into inactive compounds.

You can find this same product used in Scotts® Starter® Food for New Grass Plus Weed Preventer. So if you want to continue to control weeds and feed your new lawn look for this product and apply it one month after we hydroseeded your lawn. Remember not to use any other weed controls until your new lawn has been mowed at least 3 times. Always read labels before applying any products to your lawn. Always hire Licensed Lawn Care Applicators to treat your lawn. If they don’t leave a posting sign they are likely not licensed and insured to apply lawn chemicals.

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