Trudy from Greer, South Carolina writes
When is Acclaim most effective on killing Johnsgrass? What time of the year should it be applied?
Answer:
According to the article here, the effectiveness of certain herbicides including Acclaim Extra Selective Herbicide were effective when applied early season (pre-tiller), mid-season (1 to 2 tillers) and late season (pre-flowering). In general, two applications provided greater control than a single treatment. So you should start when it first starts to grow. You can also contact your local cooperative extension office to determine the correct timing of the application as this will vary greatly from region to region.
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Answer last updated on: 09/30/2019
