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Gina from Phoenix, Az writes

Can I apply Ferti-Lome Weed Out with Crabgrass Killer if it is over 105 degrees in AZ?

Bermuda lawn is overtaken by crabgrass.

Answer:

We do not recommend that you applying any post-emergent herbicides such as Ferti-Lome Weed Out with Crabgrass Killer while temperatures are over 90 degrees. This product label, however, specifically states not to apply this product to Bermuda grass while temperatures are over 85 degrees. This puts too much stress on your desirable grass, plus the target weeds will not be actively growing enough to metabolize the herbicide. If you have cooler temperatures at night, then the best time to apply is in early morning when temperatures are below 85 degrees and the lawn has been able to recover during the night.

Answer last updated on: 08/01/2019

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