I live 2 miles into Pennsylvania, just north of Hagerstown, Maryland...

Asked October 21, 2013, 11:24 PM EDT

I live 2 miles into Pennsylvania, just north of Hagerstown, Maryland (Washington County) and was, in fact, a Washington County resident for many years. My current home is now 11 years old and my yard is the same age--a bluegrass mix that has done very well to this point. This Fall, after a consistently wet summer, we first had a mini-drought into early October and the grass began to burn out a bit, though not as bad as would be typical in July most years etc.... . With the recent 6-7 inches of rain, it has snapped back nicely, but I just discovered several patches of brown grass, that I by accident discovered is most likely due to a grub issue in these areas. It peels back easily and has not snapped back like the rest of the yard. I just completed reading a variety of recommendations on-line, and most of those appear to involve applying some type of Grub Control in the Spring or Summer months. I can do that, but it hasn't been real clear in my research if there is anything I can do now (October 21st...). I have a 3 acre plus yard, and only several smaller patches appear to be infested---so my main question for you is 1) is there anything I can do now?? and 2) is there anything you particularly recommend for grub control in our area and my relative situation...?? Thanks for your help!

Franklin County Pennsylvania

1 Response

There is nothing that you need or can do right now.
Before thinking of treatment, it's important to know if you truly have a problem. You do this by digging up that area- if you find more than about 8 grubs per square feet, it's worth treating, especially with a blue grass lawn, which is more likely to have grub problems than turf-type tall fescues. Here is our plant diagnostic page on them: http://plantdiagnostics.umd.edu/level3.cfm?causeID=744
I a high number of grubs are found, you can use a grub control product like Grubex, which contains the active ingredient Accelepryn. Follow label instructions carefully.
Here is our publication on Japanese Beetles, which has a turf paragraph towards the end: http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG78%20Japanese%20Be...