Weed identification

[RigglePLC]

Hairy bittercress. Winter annual--probably sprouts in the fall and overwinters.
Its like chickweed; treat in fall.

[Landgreen]

Originally Posted by RigglePLC

Hairy bittercress. Winter annual--probably sprouts in the fall and overwinters.
Its like chickweed; treat in fall.

Summer annual and biennial too. nasty stuff. We did some plantings mid-summer in an existing bed. That stuff popped like crazy about 10 days later. What a mess. Customer was extremely upset. I gotta get a handle on it this spring since I know its ready to pop or has already...

[RigglePLC]

Winter annuals are not supposed to pop up in the summer--only summer annuals, like purslane and spurge. North country. Is it really cold where you are? Is summer just 6 weeks of bad skiing? LOL!

In any event weed control works better if you hit the weeds early. Try to hit them when they are less than 2 inches tall or two inches wide in the case of viny weeds.

[Landgreen]

Well I'm 99% sure it was bittercress. Strange. I was thinking the same thing. Why would it pop midsummer? Lots of it too. Made a nice carpet. Ugghh.

Im gonna hammer the beds as soon as this snow melts (have to plow tomorrow though lol). Should be an intersesti.g test to see if I can nip it in the bud so to speak.
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[overtona]

Thanks again guys for all your help on this ID. Here is something I observed. All the yards that I applied pre-m are full of this bittercrest. Those yards that I did not treat have just a little. WTH. I even have two football fields that I treat which are full of this stiff too. Just outside of the fields beyond the sidelines...hardly any. SMH.

[agrostis]

The main problem with hairy bittercress is that it mostly germinate's in the spring when your fall pre-emerge is wearing off. It is such a prolific seeder that it can take 3-5 year's and perfect timing to get it under control.

[georgialawn88]

so this hairy bittercress wont die off on its own correct? you will need something like a 3-way right?

[RigglePLC]

Whoops. Hairy bittercress is also a summer annual. My mistake. Mustard family.
http://www.ppws.vt.edu/scott/weed_id/carhi.htm
The elongated seed pods explode when mature--throwing the tiny seeds a distance of several feet. This makes it a difficult weed at times. It can even spread in a green house from one pot to another.

[Nate'sLawnCare]

That's nasty looking stuff and I've been seeing some the past week or so while doing other treatments. I put down some 4 Speed last week in an area that had some in addition to the henbit, so I'll have to read the label to see if it will control the bittercress. I hope so.