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Should You Apply GrubEX in Mid Summer?

June 27, 2016

One of the most searched subjects on my blog right now is whether it is too late to put down Scotts GrubEx.  The GrubEx package directions say to apply spring to summer.  If you have been reading my blog postings, I have written that Scotts entomologists and those with University Extension Services suggest the best timing is in May to give the product time to be washed into the soil to protect the lawn from the grubs that will show up in late summer.  If you were able to follow that advice you are all set as your single application will protect your lawn.

If you did not get your GrubEx down yet and you are starting to see lots of Japanese Beetles on your roses and other plants or you are starting to see one of the many other kinds of beetles hanging around your porch light at night, you still have time to protect your lawn… but you need to hurry.  For best results be sure to give your lawn a good watering of at least a half inch after you spread your GrubEx.  It is OK for your pets and kids to play on your lawn after the grass has dried.

Japanese Beetles lay eggs in your lawn that become grubs in late summer that feed on your grass roots until winter.

Japanese Beetles lay eggs in your lawn that become grubs in late summer that feed on your grass roots until winter. (Click photo to enlarge)

One last tip regarding moles:  Since GrubEx does not eliminate earthworms in your lawn you are still likely to get moles even though the grubs are not present.  For moles, click here to check out this info on the options from TOMCAT.

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