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re: Fall Pre Emerge
Posted on 9/11/23 at 5:39 am to FriedEggBowL
Posted on 9/11/23 at 5:39 am to FriedEggBowL
It says that Specticle Flo is a maximum of 18 oz per 12 months and no more than 10 oz per application per acre. Is it better to do a split application in fall and use prodiamine in spring? Don’t want to put to much pre emergent and have damage when growing season starts. New to the pre emergent game. Thanks.
2
Posted on 9/11/23 at 8:00 am to CrawDude
quote:
Spray is almost always cheaper on apply on a per 1000 sq ft basis
Anybody on here done a large are with spraying prodiamine? If so, what kind of ratio did you use with water? I've got about 2.5 acres of grass.
Posted on 9/11/23 at 11:54 am to shoelessjoe
quote:
It says that Specticle Flo is a maximum of 18 oz per 12 months and no more than 10 oz per application per acre. Is it better to do a split application in fall and use prodiamine in spring? Don’t want to put to much pre emergent and have damage when growing season starts. New to the pre emergent game. Thanks.
I don’t like answering for others, but I’m pretty sure that this is ronk’s approach (he does this type of work for a living) - apply Specticle in the fall/winter and Prodiamine in the spring. If he enters this thread he can correct me if I’m wrong. It is also the approach I use, though at times I use Dimension (dithiopyr) for the late winter (February) application. I also use Specticle in late April/early May b/c I’ve had a serious Doveweed issue in the past, it germinates later at soil temperture around 70 F. Specticle does excellent job of controlling Doveweed whereas Prodiamine and Dimension pre-emergents have poor efficacy on Doveweed.
Posted on 9/11/23 at 2:21 pm to shoelessjoe
10oz if for bermuda. If you have St Aug or centipede it is 6oz per acre. Craw was close. I do a single app of Specticle and a split app of Simazine. I just think that specticle is good doing one app is enough. Simazine breaks down a little faster so I spread them out by about 6 weeks. DO NOT DO BOTH SPECTICLE OR SIMAZINE ON THE SAME LAWN. I do Specticle or bermuda/zoysia and simazine on everything else.
I use prodiamine in the spring. Craw brings up a good point though. Know what you are targeting. Specticle is better and in DFW winter grassy weeds are horrible. Prodiamine is great for crabgrass and that is what I'm targeting in the summer.
I use prodiamine in the spring. Craw brings up a good point though. Know what you are targeting. Specticle is better and in DFW winter grassy weeds are horrible. Prodiamine is great for crabgrass and that is what I'm targeting in the summer.
Posted on 9/11/23 at 3:50 pm to ronk
I have a Bermuda lawn. So a single application of Specticle of 10oz is ok. Not clear on what I should do in spring. Looking to prevent crab and Dalis grass. Prodiamine in spring using split application?
Posted on 9/11/23 at 4:33 pm to shoelessjoe
You can prevent crabgrass but not Dallisgrass. I do a split app of prodiamine in the spring. I do a full rate of Specticle.
Posted on 9/12/23 at 9:17 pm to ronk
Is Specticle ok to use on common Bermuda?
Posted on 9/12/23 at 9:26 pm to ronk
Craw / ronk:
I plan to spray Specticle FLO in the next few weeks as my pre-emergent. I have a 4 gallon backpack sprayer and roughly 9,000 SF of Bermuda.
I'm still a newbie with all of this but based on what I've read, I should be mixing roughly .23 oz per 1,000 SF which means I would be roughly using 1 oz of Specticle Flo per 4 gallon application. Is that about right? Also, I've read it's good to use a non-ionic surfactant when applying as well?
Any thoughts / comments are appreciated, as usual.
Thanks fellas.
I plan to spray Specticle FLO in the next few weeks as my pre-emergent. I have a 4 gallon backpack sprayer and roughly 9,000 SF of Bermuda.
I'm still a newbie with all of this but based on what I've read, I should be mixing roughly .23 oz per 1,000 SF which means I would be roughly using 1 oz of Specticle Flo per 4 gallon application. Is that about right? Also, I've read it's good to use a non-ionic surfactant when applying as well?
Any thoughts / comments are appreciated, as usual.
Thanks fellas.
This post was edited on 9/13/23 at 7:16 am
Posted on 9/13/23 at 12:51 pm to Ziggy
quote:
plan to spray Specticle FLO in the next few weeks as my pre-emergent. I have a 4 gallon backpack sprayer and roughly 9,000 SF of Bermuda. I'm still a newbie with all of this but based on what I've read, I should be mixing roughly .23 oz per 1,000 SF which means I would be roughly using 1 oz of Specticle Flo per 4 gallon application. Is that about right? Also, I've read it's good to use a non-ionic surfactant when applying as well?
Your calculations are correct for Bermudagrass, but it also assumes you’ll be spraying 1 gallon of solution per 1000 sq ft - have checked that your spray pattern and walking pace will use 1 gallon of solution to cover 1000 sq ft?
With a pre-emergent herbicide you don’t need to use a surfactant, whose primary function is to increase the absorption of the herbicide into leaf blades. With pre-emergent herbicides after your apply it, you need to wash the herbicide into soil, either by rain or watering, where the weed seeds are located and will germinate.
Posted on 9/13/23 at 1:30 pm to CrawDude
quote:
Your calculations are correct for Bermudagrass, but it also assumes you’ll be spraying 1 gallon of solution per 1000 sq ft - have checked that your spray pattern and walking pace will use 1 gallon of solution to cover 1000 sq ft?
Yes, I'm pretty sure this is about what I've covered in the past (when I did RGS application), but I guess I can double check.
quote:
With a pre-emergent herbicide you don’t need to use a surfactant, whose primary function is to increase the absorption of the herbicide into leaf blades. With pre-emergent herbicides after your apply it, you need to wash the herbicide into soil, either by rain or watering, where the weed seeds are located and will germinate.
Makes sense.
Thanks for your input!
Posted on 9/13/23 at 4:02 pm to ronk
There’s a vacant lot across the street that gets cut weekly, but is filled with weeds - mainly VBW, crabgrass, dallisgrass, and bahiagrass.
I’m thinking about using a pre-emergent (and spot spray the dallisgrass) to improve the look and hopefully allow the Bermuda to better take over the other grass types. Would also be better for the kids to play.
Any thoughts? Is it just a waste of time/money (although not a lot) without fertilizing and watering regularly?
I’m thinking about using a pre-emergent (and spot spray the dallisgrass) to improve the look and hopefully allow the Bermuda to better take over the other grass types. Would also be better for the kids to play.
Any thoughts? Is it just a waste of time/money (although not a lot) without fertilizing and watering regularly?
Posted on 9/14/23 at 7:41 am to Tifway419
You could clean that up pretty easy. Pre em would keep the weeds low. Since it is not lawn I'd just spray whatever you didn't want with glyphosate.
Posted on 9/16/23 at 4:13 pm to ronk
Paging Craw / ronk again:
Would either of you recommend doing 2 fall pre-emergents? In other words, I put down Specticle FLO today -- would it be okay to put down like 0-0-7 YardMastery Prodiamine in a month or so?
I plan on putting down Barricade in the spring.
Thanks fellas.
Would either of you recommend doing 2 fall pre-emergents? In other words, I put down Specticle FLO today -- would it be okay to put down like 0-0-7 YardMastery Prodiamine in a month or so?
I plan on putting down Barricade in the spring.
Thanks fellas.
Posted on 9/16/23 at 8:43 pm to ronk
Combining specticle and simazine
In your post you suggested not applying both specticle and simazine to the same lawn. Have you had a negative result doing that or is it unnecessary? The reason I ask is because the linked article suggested that mixing the two modes of action may prevent resistance. Thinking about trying it this year.
In your post you suggested not applying both specticle and simazine to the same lawn. Have you had a negative result doing that or is it unnecessary? The reason I ask is because the linked article suggested that mixing the two modes of action may prevent resistance. Thinking about trying it this year.
This post was edited on 9/16/23 at 8:58 pm
Posted on 9/16/23 at 9:42 pm to TGCM
My guys have accidentally put down a specticle and a simazine a few weeks apart. Here’s what I noticed: completely weed free lawns. Green occurred 4 weeks after everyone’s else’s lawn greened up.
Posted on 9/16/23 at 10:18 pm to ronk
Thank you for the input. Your’s and others input over the years has really helped me and I appreciate it.
For what it’s worth, this spring I used rezilon (same chemical as specticle just higher concentration so rates have to be adjusted). It says it has some control of sedges. I had no sedge this year until this week after 3.5 inch rain after a month without rain. Not sure if that preemergent was the reason but this is the first year I haven’t had patches of sedge in my yard until now. It could have been that i spent a lot of time killing it off last year with certainty and sedge hammer at different times. Whatever the reason, I think specticle/rezilon have really helped my yard. Again, I appreciate your insights.
For what it’s worth, this spring I used rezilon (same chemical as specticle just higher concentration so rates have to be adjusted). It says it has some control of sedges. I had no sedge this year until this week after 3.5 inch rain after a month without rain. Not sure if that preemergent was the reason but this is the first year I haven’t had patches of sedge in my yard until now. It could have been that i spent a lot of time killing it off last year with certainty and sedge hammer at different times. Whatever the reason, I think specticle/rezilon have really helped my yard. Again, I appreciate your insights.
Posted on 9/16/23 at 10:35 pm to TGCM
I help as much as I can. I bore my friends and neighbors with lawn talk. I’m far from a phd in lawn but I’ll share what I know and see.
I hand pull sedges just to feel that I cause them a little pain. When you pull them they can’t photosynthesize so the use the stored food in the nutlet to produce a new plant. Continue and they run out of stored energy.
I hand pull sedges just to feel that I cause them a little pain. When you pull them they can’t photosynthesize so the use the stored food in the nutlet to produce a new plant. Continue and they run out of stored energy.
Posted on 9/16/23 at 10:44 pm to ronk
I’ve heard they activate two nutlets when you pull them. Not sure how true that is. So I try not to, but sometimes I can’t help myself and pull those bastards anyway.
Posted on 9/17/23 at 8:03 pm to Tifway419
BUMP...
Paging Craw / ronk:
Would either of you recommend doing 2 fall pre-emergents? In other words, I put down Specticle FLO today -- would it be okay to put down like 0-0-7 YardMastery Prodiamine in a month or so?
I plan on putting down Barricade in the spring.
Paging Craw / ronk:
Would either of you recommend doing 2 fall pre-emergents? In other words, I put down Specticle FLO today -- would it be okay to put down like 0-0-7 YardMastery Prodiamine in a month or so?
I plan on putting down Barricade in the spring.
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