If you need to accomplish both, look for a herbicide called siduron, also known as Tupersan. This selective herbicide will prevent crabgrass germination while not disturbing the grass seedlings.
>>Massive fire destroys Neff's Lawn Equipment in Germantown; cause still under investigation
Now is also the best time to prepare the lawnmower for the upcoming growing season. If needed, change the oil, air filter and spark plug. Most importantly, make sure your mower deck is set to a minimum of 2.5". Most northern lawns such as Kentucky Bluegrass should be mowed at 3-3.5" in the summer months. As a simple rule, don't mow more than 1/3 of the grass off at a time. Mowing too low can damage the lawn and make it vulnerable to weed invasion.
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