[ahartzell]

What are the pros/cons of the different pre-emergents you guys use? I was going to order some Prodiamine to spray around September. The 2.5gal is expensive and from label makes it sound complicated to mix/spray. It would last like 15yrs though.

I also thought the granular Barricade...just because it's easy to throw in a spreader and put it down. Is there a reason people don't use the granular? I'm kind of tired of spraying something every few weeks :lol:

 

[pennstater2005]

The Prodiamine is expensive initially but significantly cheaper in the long run. I've used granular but spraying seems to be more effective.

It's definitely more time consuming than granular but I was surprised at how fast it went one I sectioned off the yard in 1000sq ft. areas.

The first time I sprayed Prodiamine I used too much but luckily it rained and I was saved!

 

[Ware]

For spraying, the Prodiamine 65 WDG (Wettable Dispersible Granule) carries a cheaper up front cost than the Prodiamine 4L (liquid).

Here is a thread that discusses the granular option.

 

[balistek]

So is it the general consensus that Prodiamine is the go to pre-em? I have SA, and I really want to be aggressive this fall with pre-em treatment. I have plenty of weeds that I would like to prevent next season. Has anyone had much experience wth Pennant Magnum? I've heard LCN talk about it on youtube

 

[Rockinar]

I never used Pre em before this year and had serious weed issues up till this year. This year I just used the Scotts stuff along with Weed/Feed (yeah..yeah..I know better) in early Mach and it worked great. Probably 90% less weeds than last year and no crabgrass. Last year both my front and back yards were infested with crab by tis time of year. I have a bottle of Dimension but decided I don't want to mess with the liquids. Seems like a lot of room for error and with granuals you're not fighting winds (really windy where I live) and weather.

 

[Movingshrub]

I think it depends on what you are trying to prevent and your current turf grass. Dimension/Dithiopyr, Baracade/Prodiamine, and Pendamethalin all seem to be very effective. I *think* wetable granuals of prodiamine tend to be the most cost effective over the long term currently. With that being said, there is something to be said for rotating method of action of the chemical pre-em to help prevent resistance.

 

[Tex86]

I was in your situation where I was debating on a granular pre emergent. I had never used a WDG and I was concerned about unfer or over applying and damagjng my soil.

My grass in the backyard was infested with crabgrass. I was out everyday hand pulling the pesky weed up. After under applying once, I was advised to do another application. Since then I haven't had to do a post emergent application as my yard is about 95% free. I live on a hill and the wind is on average around 8-15 miles per hour and i was concerned with drift and over application.

I guess what I'm trying to say is that its a little intimidating with the risks, however, it is worth it as the effects last for 6 months or more.

 

[FATC1TY]

Getting close to needing to toss out the September-ish time frame for the fall pre m.

Having had a spray and pay service until recently, I haven't done my own pre m, and based on the success of the former company they haven't either!!

Prodiamine is on my list. I'm leaning towards the granular type to broadcast, but open to getting the WDG and buying the push cart sprayer for my roughly 4000sq ft.

I don't have many issues with different weeds, just sedge and goosegrass, and goosegrass is my nemesis and the biggest issue I have.

Oxadiazon sounds like something I need to put down as well. Anyone have a preference or experience with a source or application method ?

With that said- prodiamine down in fall, another app in early spring ( probably end feb/early March ) and then the oxadiazon in what April?

Thanks!

 

[Ware]

Getting close to needing to toss out the September-ish time frame for the fall pre m.

Having had a spray and pay service until recently, I haven't done my own pre m, and based on the success of the former company they haven't either!!

Prodiamine is on my list. I'm leaning towards the granular type to broadcast, but open to getting the WDG and buying the push cart sprayer for my roughly 4000sq ft.

I don't have many issues with different weeds, just sedge and goosegrass, and goosegrass is my nemesis and the biggest issue I have.

Oxadiazon sounds like something I need to put down as well. Anyone have a preference or experience with a source or application method ?

With that said- prodiamine down in fall, another app in early spring ( probably end feb/early March ) and then the oxadiazon in what April?

Thanks!

Granular Prodiamine wouldn't be cost prohibitive on 4k square feet, so that's definitely an option if you don't want to spray it.

A push sprayer would work great, but in my mind you have a lawn size where a Chapin 20V backpack sprayer would probably serve you equally well.

I have never used Oxadiazon, but for Prodiamine I split the annual max and apply half in spring and half in fall.

 

[FATC1TY]

Sorry to keep bringing up old threads, guys.

Do your own has 10% off pre emergent right now. All of them!

I have a vicious case of goosegrass. Probably because of the lack of reliable pre m this lawn company has put down in the past.

I don't have much else. Occasional sedge, crab grass, and clover from neighbors yards creeping around sometimes. I did have poa one year but didn't return this yr.

I'm leaning towards the granular ronstar g stuff.... anything someone could recommend better/ cheaper ? Goosegrass is my main driver here to control. Need some help to really change my yard around for next yr.

 

[Movingshrub]

Oxadiazon sounds like something I need to put down as well. Anyone have a preference or experience with a source or application method ?

With that said- prodiamine down in fall, another app in early spring ( probably end feb/early March ) and then the oxadiazon in what April?

Thanks!

Why are you leaning towards ronatar/oxadiazon? Is it just for the goosegrass control? Prodiamine, pendamethlin, and dithiopyr work pretty well against goosegrass but not quite as well as oxadiazon.

If you apply ronatar, I think to ronatar granular is the only way to go. Ronatar-Flo requires that the Bermuda be dormant if I recall correctly. I don't know the temp/time of year for goosegrass germination but that's going to drive your application timeline. If you use ronatar, don't spit applications; Do the full amount upfront.

Also, the off brand oxadiazon granular tends to be the same cost so take your pick.

 

[FATC1TY]

Oxadiazon sounds like something I need to put down as well. Anyone have a preference or experience with a source or application method ?

With that said- prodiamine down in fall, another app in early spring ( probably end feb/early March ) and then the oxadiazon in what April?

Thanks!

Why are you leaning towards ronatar/oxadiazon? Is it just for the goosegrass control? Prodiamine, pendamethlin, and dithiopyr work pretty well against goosegrass but not quite as well as oxadiazon.

If you apply ronatar, I think to ronatar granular is the only way to go. Ronatar-Flo requires that the Bermuda be dormant if I recall correctly. I don't know the temp/time of year for goosegrass germination but that's going to drive your application timeline. If you use ronatar, don't spit applications; Do the full amount upfront.

Also, the off brand oxadiazon granular tends to be the same cost so take your pick.

Yes. Main drive is the goosegrass. It's 97 percent of the total weed population I have.

Would you do a full amount in fall, or wait to use it in the spring?

I was thinking half app of granular prodiamine end of sept, and then half oxadiazon in feb and April. Since goosegrass germinates later the April would give me the overlap, of course soil temp dependent.

Or would one be advised to use the oxadiazon in march and do a full app and call it done?

 

[Llano Estacado]

Having had a spray, pay and pray service.....

Fixed it for you. :lol:

Same boat. Not paying for spraying services any more. Never been very impressed with what I got. I can get the same results for a fraction of the cost.

 

[Spammage]

I can get better results for a fraction of the cost.

Fixed that for you. :thumbup:

 

[Llano Estacado]

I can get better results for a fraction of the cost.

Fixed that for you. :thumbup:

:nod:

 

[Movingshrub]

Yes. Main drive is the goosegrass. It's 97 percent of the total weed population I have.

Would you do a full amount in fall, or wait to use it in the spring?

I was thinking half app of granular prodiamine end of sept, and then half oxadiazon in feb and April. Since goosegrass germinates later the April would give me the overlap, of course soil temp dependent.

Or would one be advised to use the oxadiazon in march and do a full app and call it done?

If you have an area that is in need of repair that I can understand going with Ronstar. However, if you're just looking for goose grass control specticle / indaziflam may be something to consider.

I believe the liquid version or even the WSP of indaziflam is significantly cheaper than the granular version, In terms of cost per application.

Barricade is going to be absolutely the cheapest out of all the options.

Approximate price per application per acre:
Prodiamine 65 WDG $13, yes $13.
Ronstar G $400
Ronstar Flo $200
Specticle G $560
Specticle Flo $140

Keep in mind, each product lasts a different amount of time per application, and that research was beyond the scope of my interest at the moment.

If your yard has a bunch of damaged areas that you're trying to fill in, then maybe Ronstar is the right choice.

If your yard is really established and you're just trying to fight back the goose grass, consider indaziflam if the prodiamine isn't doing the job. If you haven't given prodiamine a chance, you may want to for the sake of your wallet; the choice is yours.

 

[FATC1TY]

Thank you for the info there.

I'd probably assume I have areas destroyed by goosegrass. Compaction, water erosion, clay soil and cultural upkeep.... I've inherited an issue.

I looked at specticle and it seems more expensive than the oxadiazon... liquid oxadiazon is in odd packaging and hard to figure out how to use for my size yard.

Would one "type" of pre m be fine? Am I giving up any coverage with one over the other? I will lose my freakin mind if I have to pull goosegrass next June and July.

I gave up on half my front yard this yr because of it.

 

[high leverage]

You're over thinking this. The Prodiamine application will take care of 90%+ of the goosegrass. Pick up some some Sulfentrazone (Dismiss) for the other 10%. With proper aeration and pre-m the goose will be cooked in two years.

 

[Ware]

I would get some Prodiamine and apply half the annual max in September - then do the same thing at the appropriate time in the spring. Timing is key, and goosegrass should not be too hard to beat.

J_nick had a yard full of it during his renovation, but I'm pretty sure he'll have it whipped back into shape by this time next year - without spending a ton on fancy chemicals. :thumbup:

 

[Fronta1]

Just be aware that all pre emergents except oxadiazon will stunt the growth of the roots of your Bermuda as well.