Glyphosate Resistant Ryegrass Pictures.

A block in Blewitt Springs where glyphosate resistant ryegrass regrowing after being sprayed with Glyphosate.

This grower will need to respray this vineyard with an alternative herbicide group to prevent this weed from smothering the vines. REMEMBER - the ryegrass is resistant and will not be controlled by glyphosate no matter what rate of product is used. Increasing the rate of glyphosate only makes the problem worse as you are selecting for resistant plants quicker.

Regrowth of glyphosate resistant Annual Ryegrass.


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