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bokonon

Grubs once 4 years ago -- keep treating annually? Or what?

bokonon
7 years ago

4 summers ago we had a serious grub infestation (first I've ever seen) here at our yard in central Ohio. They ended up killing about five 20x20 foot areas of grass.


The next three summers we had a grub insecticide and preventative put down by a lawn service and no more grubs.


My question is : do we have to keep applying preventative every year forever or -- since we've treated for three years with no grub reappearance, can we stop the annual grub treatment?


We'd been here 15 years before that first grub infestation. Any guidance on this would be appreciated.

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