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Allan from Texarkana, Tx writes

How often can I spray Reward and Surfactant on my lake for Duckweed?

I am spraying sections at a time, to protect wildife.

Answer:

For spot treatments using Reward Herbicide, you can re-apply every 2 weeks as needed. If you are doing a broadcast treatment, the label does not specify a time frame in between applications, however, we would recommend waiting at least 2 weeks to do another broadcast application so that the product has time to work.

Answer last updated on: 06/28/2016

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