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Patricia from Thackerville, Oklahoma writes

When is the best time to apply a pre-emergent?


Pre-emergent weed applications usually need to be applied when soil temperatures are lower than 55-65 degrees Fahrenheit. After the weed seeds have warmed up, they germinate, rendering pre-emergent applications useless. If you are past this point, post-emergent weed control applications will need to be used. For the best timing apply pre-emergent in your specific location, we recommend contacting your local cooperative extension office.    

Answer last updated on: 05/02/2018

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