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Bill from Willow Spring, Nc writes,

What is the mechanism that actually kills the weeds?

I am using a Fertilome product that contains Trimec. I notice that it beads up on the plant leaves. I'm afraid that it needs something to break through the leaf surface (surfactant) and is not doing it. Does Trimec kill similar to Roundup?


Trimec 992 Broadleaf Herbicide has three different active ingredients that work differently but work exceptionally well together. 2,4-D and MCPP-p are an auxin- type herbicide which is a class  of plant growth regulators. It is absorbed through the leaves and is translocates to the growing points of the plants, causing weed stems to curl and twist, withering, and eventual death. Lastly, the Dicamba is absorbed through the leaves and roots and has multiple modes of actions for hard to kill broadleaf weeds.

Answer last updated on: 08/15/2014

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