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Tricia from Indianapolis, In writes

What is the lowest temp that SpeedZone is effective on native wild violet?

How long does it need to be at that temp?

Answer:

SpeedZone Herbicide is most effective when applied when temps are between 60-75 degrees. The temperaturess do not have to stay in that range after treated area has dried. 

Answer last updated on: 11/21/2016

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