Why I Oughta...

This past season, I finally figured out that our backyard was infested with a warm-season grass/weed called Nimblewill and came up with a plan to treat it in place while not doing a full cool-season grass renovation.  That started with using a post-emergent spray called Tenacity  - which caused the Nimblewill to white-out and die .   Once that ran its course, I then began a project using a pre-germination seed technique followed by a project to overseed the lawn with a mix of Kentucky Blue Grass and Tall Fescue .  Which...after some watering... resulted in a bunch of new germination . And, while I was happy with the result in the Fall with new, green grass filling in plenty of bare spots, I knew the real, important results, would be visible once the lawn went totally dormant.  That's because, the Nimblewill is a warm-season grass and totally dies back once the temperature drops.  Which, historically have left us with a bunch of bare spots in the law...

Well, woulda look at that.  We have seedlings emerging in the blank spaces of our backyard lawn.  Specifically, we have seedlings taking off that were spread around our backyard a week or so ago after undergoing a pre-germination process of soaking them for five days .  I threw down 30# of seed (mix of KBG and Tall Fescue) and hand-spread some of it in some bare spots in the far back.  Below is a photo of one of those blank spots.  Have a look to see the grass seedlings coming up and filling in the space: A few things to note about this photo:  I spread a combination of Tall Fescue and Kentucky Bluegrass seeds back here, so I'm not totally sure what I'm seeing here, but based on germination time estimates, I'd say that this is more likely than not to be Tall Fescue.  You'll also note that there is a bunch of white blades in the photo.  That is a nice sight to see as that is Nimblewill that has been treated with Tenacity and is (hopefully) damaged ...

The time has come for the backyard Fall lawn project.  What I thought was going to be a total renovation - killing everything and seeding from scratch - has turned into a combination of patch seeding and total overseeding in a couple of ways.  Once I was able to positively identify that I had an infestation of Nimblewill (a warm-season bent grass), I opted for a selective treatment called Tenacity.  After a couple of applications, the spray began to work and has turned the tips of the Nimblewill white as it begins to kill it off .  The killing and eradication of the Nimblewill isn't going to be done in this one season, but rather will be a multi-year program.  But, with the application of Tenacity (while the Nimblewill is/was growing ), I think I've begun to defeat it.  And allow for the application of a new batch of grass seed that will (I hope) take off and begin to grow in the final six or so weeks of the season.   The backyard is a case study...

Earlier this month, I was able to (finally and properly) identify that I have a creeping bentgrass problem in my backyard that includes a spreading (and concerning) amount of Nimblewill .  I decided to apply Tenacity as a post-emergent in an attempt to begin to control the grassy weed ahead of overseeding this Fall.  I mixed up a couple of gallons and applied it with a pump sprayer.   What does it look like after a week?  I'm seeing what I hoped to see:  some white emerging from the bentgrass.  See below for some photos showing the white tips.  Turns out, I have A TON Of creeping bentgrass back there that needs to go.  Look at all this white showing up: Everything I've read tells me that Nimblewill control isn't a one-shot deal.  It will take a few applications the first season and a multi-year treatment plan with herbicide control (Tenacity as a selective post-emergent).   But, so far...I'm happy.  And seeing signs of p...

Last week, I shared here on my lawn diary a little breakthrough.  For the past 18-or-so months, I've been watching a grassy weed creep along and begin to migrate from my far backyard to closer to our patio.  And, after reading about various grassy weeds, I came to the (initial) conclusion that I was dealing with Poa Annua - or an annual Bluegrass.  It was showing some of the signs like being lime green.  But, after observing the lawn this Spring, I noticed that the parts affected green'd up later and seemed to handle the Summer better than the balance of my Bluegrass.   I was planning on doing a complete renovation in the back by killing EVERYTHING off and starting from scratch with a new layer of seed this Fall.  As I prepared for that, I went in to see if I could learn more about what was back there and how much I *really* needed to kill off vs. just overseed. When I went in and pulled a mature stalk of grass, I discovered it had this sort of horizon...

 I've grown my lawn care practice in various ways over the years based on things I've learned from the Web (mostly YouTubers) including how I (now) cut my lawn pretty high (5 on the mower), have added Tall Fescue to our KBG lawn to try to provide it more heat resistance and even using a blue pattern spray in my herbicide treatments to 'see' where I've sprayed .  My most recent project is focused on controlling a new (to me) warm season weed grass called Nimblewill. In order to do that, I'm going to use a selective herbicide named Tenacity.  Tenacity seems like pretty great stuff and can be applied as either a pre-emergent or a post-emergent.  The difference is that you have to also use a surfactant if you're going the post-emergent route. For this Nimblewill control project, we're talking post-emergent and actively growing grass. That meant that I had to go find a surfactant.  The most readily available one was this Liquid Harvest version available on Am...

Yesterday, I posted about the lawn care breakthrough that I had in properly identifying and diagnosing our lawn with hosting a warm-season bent grass weed called Nimblewill .  In that post, I talked about trying to work my way through a process to both treat the Nimblewill, help some of our other tough spots and overseed the backyard this late Summer/early Fall. Back in March of this year, I posted my 2022 lawn care schedule and included the idea of a renovation in the back.  Turns out...(if you read yesterday's post on Nimblewill ), I don't have Poa and don't need a renovation.  I just need to remove the Nimblewill and overseed.  Here's how I'm approaching the process below. My plan starts with controlling the Nimblewill through a herbicide application.  Followed by aeration to part of my lawn then overseeding and finally amending parts of the backyard with compost to help improve the conditions.  I touched on some of this in my 2022 lawn schedule post fr...

I had a little lawn care breakthrough this past week.  Turns out....I don't have Poa in our lawn.  We have a bent grass called Nimblewill .  Since last Fall, I've talked about how I needed a plan to deal with what I thought was Poa Annua in our backyard .  I s ketched out the notion of a full back renovation and even included the idea in my 2022 to-do list.    But, as I was thinking about the timing of killing that (presumed Poa), I started to dig a little deeper on the Web.  I pulled a blade of my invasive grass and compared it to what I found on the Web.  It wasn't looking like Poa.  Then...I found this page from Purdue's Turf Science Department that talks about Nimblewill .   Purdue describes Nimblewill thusly : Nimblewill (Muhlenbergia schreberi) is a warm-season perennial grass found throughout the northeast, southeast, and Midwestern United States.   ...It grows well in moist, shady areas but it is also found in dry...