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Weed/Fertilizer Application Timing

Posted on 3/4/24 at 9:57 am
Posted by AverageJoe26
Hwy 42
Member since Sep 2012
346 posts
Posted on 3/4/24 at 9:57 am
Sorry for adding to a pile of weed & feed threads this time of year...want to make sure I'm doing this the right way.

I have mostly centipede with some bermuda mixed in. Yard is currently overrrun with clover/crabgrass/etc. Guy at LA Nursery recommended the following:

1. Fetilome Weed-Free Zone
2. Hi-Yield Turf & Ornamental Weed & Grass Stopper
3. Fertilome Centipede Fertilizer 15-0-15

He recommended I apply in the same order as listed above but I forgot to ask how long to wait before applying each. I put out the WFZ Saturday afernoon. When should I put out the Weed/Grass Stopper? Fertilizer?

TIA
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5271 posts
Posted on 3/4/24 at 11:15 am to
Put out the weed & grass stopper (Dimension pre-emergent) ASAP and water it in.

I’d wait until April 1-15 to apply the fertilizer at 1/2 lb nitrogen/1000 sq ft (3 1/3 lbs of 15-0-15 per 1000 sq ft). Second application in mid June/mid-July.

Ideally the centipede should be in active growth. I like to wait until I’ve cut the lawn grass (not weeds) twice before fertilizing. I have a centipede front lawn. Centipede takes a little longer to green up than St Augustine.
Posted by AverageJoe26
Hwy 42
Member since Sep 2012
346 posts
Posted on 3/4/24 at 12:10 pm to
Much appreciated sir!
Posted by Ziggy
Member since Oct 2007
21526 posts
Posted on 3/4/24 at 12:29 pm to
quote:

Ideally the centipede should be in active growth. I like to wait until I’ve cut the lawn grass (not weeds) twice before fertilizing. I have a centipede front lawn. Centipede takes a little longer to green up than St Augustine.

After my scalp, my Bermuda is in full blown growing mode. Almost all green now which is crazy to me. Think it's safe to drop some fertilizer down in the next week or two?
Posted by ronk
Member since Jan 2015
6215 posts
Posted on 3/4/24 at 12:36 pm to
Normally fert would be tax day. That being said this year that day will come earlier. i scalped mine and I'm currently at 25% green up. I'd imagine that I'll be at 50% by the weekend. It is looking like the 23rd or 30th will be my first dose of high N fert.
Posted by Ziggy
Member since Oct 2007
21526 posts
Posted on 3/4/24 at 1:17 pm to
quote:

Normally fert would be tax day. That being said this year that day will come earlier. i scalped mine and I'm currently at 25% green up. I'd imagine that I'll be at 50% by the weekend. It is looking like the 23rd or 30th will be my first dose of high N fert.

Roger that.

This May makes 1 year of having this Bermuda and it blows my mind how green it already is compared to all the other yards in the subdivision (I'm the only home that has Bermuda). I was expecting it would take a lot longer to green up but it's almost 100% there already.

How high N are you doing? How many more times will you fertilize in a season?
Posted by LEASTBAY
Member since Aug 2007
14298 posts
Posted on 3/4/24 at 1:33 pm to
I haven't even scalped my Bermuda, just put down prodiamine and spot sprayed Celsius. The Bermuda has never looked better than right now.
Posted by Ziggy
Member since Oct 2007
21526 posts
Posted on 3/4/24 at 1:39 pm to
quote:

just put down prodiamine and spot sprayed Celsius.

I did pre-emergent about 3 weeks ago and plan on spot spraying ceclius + certainty soon.

quote:

The Bermuda has never looked better than right now.

Posted by ronk
Member since Jan 2015
6215 posts
Posted on 3/4/24 at 1:43 pm to
46-0-0 on the first round. Then 33-3-6 3/4 times.
Posted by Ziggy
Member since Oct 2007
21526 posts
Posted on 3/5/24 at 12:13 pm to
quote:

46-0-0 on the first round. Then 33-3-6 3/4 times.

Nice. Question for you ronk -

I sent off a soil test that came back low in N, P, & K. However, the day after I took the soil samples I used a 7-0-20 "stress blend" granular fertilizer from YardMastery.

From the soil tests results, YM recommends I do a 12-12-12 next to get the N, P , & K up but obviously the results of that test was prior to the 7-0-20 application.

I was going to use the YM Flagship fertilizer as my next application in a week or two which is a 24-0-6.

Your thoughts? Should I do the 12-12-12 and then wait a few weeks and then do Flagship...or go straight to Flagship?

As previously discussed, my yard is looking great already and is almost at 100% green up. It could be that stress blend waking up the yard.

Thanks!
Posted by ronk
Member since Jan 2015
6215 posts
Posted on 3/5/24 at 2:27 pm to
I’d use the 24-0-6. An N test on a soil test isn’t going to be accurate. 12% N isn’t going to be enough to feed the lawn.
Posted by Ziggy
Member since Oct 2007
21526 posts
Posted on 3/5/24 at 2:28 pm to
quote:

I’d use the 24-0-6. An N test on a soil test isn’t going to be accurate. 12% N isn’t going to be enough to feed the lawn.

This is what I was thinking as well.

Thank you sir!
Posted by bayoubengals88
LA
Member since Sep 2007
18946 posts
Posted on 3/5/24 at 3:00 pm to
Ronk, if we didn’t feed our Bermuda with Nitrogen, where would most of it come from?

Would the grass just not be as healthy?
Posted by ronk
Member since Jan 2015
6215 posts
Posted on 3/6/24 at 10:00 am to
Microorganisms in the soil convert nitrogen in the air to useable nitrogen in the soil.
Posted by damnstrongfan
St. George, Louisiana
Member since Dec 2009
2086 posts
Posted on 3/7/24 at 10:57 am to
quote:

I’d wait until April 1-15 to apply the fertilizer at 1/2 lb nitrogen/1000 sq ft (3 1/3 lbs of 15-0-15 per 1000 sq ft). Second application in mid June/mid-July.

Crawdude does this schedule also apply to St. Aug?
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