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Overseeding and fertilizer to repair grub damage

Posted by paulsiu IL (My Page) on
Fri, Apr 8, 11 at 8:31

Last year, I had some grubs that damaged parts of the lawn. Last fall, I top dressed with some compost and ringer restore. About now I was thinking about putting in some more ringer restore and then overseed.

However, I notice that there are post that indicated that shouldn't put down any fertizer now. Is it because of weeds? If I have some spots due to grub damaged, What should I do now?

Paul


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RE: Overseeding and fertilizer to repair grub damage

Last year when you topdressed was the time to overseed. Is the damaged grass a fescue or a Kentucky bluegrass? If you have fescue then you might want to overseed and take hit on weeds this coming summer. If you have Kentucky bluegrass then it should fill in for you without any more seed.

The time to apply fertilizer in the spring is after you have mowed real grass (not just weeds) for the second time. By then you can be certain you have living roots. If you fertilize before the grass is growing, you are only fertilizing the weeds.

Also keep in mind that your grass is coming out of the cold season with a lot of nutrients in the soil ready to go. You should see a hearty flush of new growth whether you fertilize or not. Grass farmers do not like to fertilize in the early spring because they have to mow twice as much. The real time to fertilize in the spring is after the initial flush of growth is over. I always suggest May and particularly Memorial Day because it is an easy day in May to remember.

With this in mind, once your grass is growing, you can fertilize your damaged spots but don't go overboard. Then hit it all again on Memorial Day.


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