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Not necessarily. Stiltgrass germinates so late that early applications are running out of steam by that time. You need to make really sure that Pre-M is still effective around Memorial Day. See the first post in this thread for more info.

andy10917 wrote: ↑

July 20th, 2021, 8:14 pm

Not necessarily. Stiltgrass germinates so late that early applications are running out of steam by that time. You need to make really sure that Pre-M is still effective around Memorial Day. See the first post in this thread for more info.

Will do. Thanks Andy!

Andy,

So do you recommend prodiamine as a good pre M for stiltgrass? Or is there another pre M you would recommend for it? I used pendulum 2g in early spring but as you indicated if you don’t put a strong enough app down it will emerge all summer long which it’s doing in my yard again in small patches.

Prodiamine seems to work well, and is the only thing I have tested, so I can't tell you if others are better or worse.

Thanks Andy. I think I’m going to use prodiamine twice a year to help keep it down. Pendulum is too expensive for me to keep purchasing ($90 for a 40lb bag)

Andy,
Do you know if Blindside works to control Japanese Stiltgrass?
It is listed on the label as one of the weeds it controls.
https://www.domyown.com/msds/Blindside_ ... l_2021.pdf
Thanks
-Steve

Sorry, I don't really know Blindside nor the use of it for Japanese Stilygrass.

Sprayed glyphosate on the young Japanese stiltgrass appearing in the woods near the house.

Aether wrote: ↑

June 6th, 2023, 8:28 am

Sprayed glyphosate on the young Japanese stiltgrass appearing in the woods near the house.

I've spent the last few years hitting the surrounding wooded areas with glyposate on any JS. I also use prodiamine on the lawn in the spring and fall. I really didn't see much last year and this year none has emerged. So far so good and fingers crossed!

Just thought I'd bump this post again. I generally spray stiltweed with Acclaim when I see it and sweep the wooded areas around the yard for it too, so I was surprised to see it in the main areas of my yard over the last few weeks. I hit it at two week intervals and see to have beaten it back.

Keep your eyes open!