where is the crabgrass?

Pucky Freak

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Joined
Mar 4, 2019
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Location
Iowa
For all the lawn care pros out there - I'm curious what the answer is to this one.

Midwest lawns there is often a constant battle with crabgrass. Pick the young plants, time the spring preventer just right, only to have a crop of new crabgrass spring up from some adjacent lot whose owner is not nearly as diligent about batting this choking, ugly plant. Except for this year - there is no crabgrass! It's population is about 99.9% reduced in my IA county compared to all previous years in my memory. We had a very wet April - 9" total rain, and ground was wet the entire month. Was the saturated soil during the crabgrass germination period its doom? No complaints, really. I get a year off.
 
Here where I live the crabgrass has been choked out by dallisgrass. It looks like crabgrass but is perennial and laughs at any selective herbicide except MSMA and some real expensive stuff called "monument". Makes us wish all we had to deal with was crabgrass.
 
Monument...that must be extree' special! Lol! 😎
That was my Andy Griffith impersonation.
 
Digitaria ischaemum (Smooth Crabgrass). This is the stuff that all but vanished. There are many species of crabgrass. I did find about 10 plants in the bare dirt of my vegtable garden, but that's about it. None in the lawn.


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