Moisture blamed for Overwatch volatility

Shannon Beattie
By Shannon Beattie
Updated July 9 2021 - 5:34am, first published July 8 2021 - 11:00pm
A comparison between a paddock sprayed with Overwatch/trifluralin on the right and trifluralin/prosulfocarb on left. Photo by Craig Hall, Gairdner.

AGRONOMISTS around Western Australia are claiming that FMC's new herbicide Overwatch is made volatile by moisture, which is what they allege has been causing excessive levels of bleaching in crops treated with the product and off-target damage in nearby paddocks.

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