Weed FREE 2024! STOP WEEDS NOW!! Pre emergent weed controls for lawns and flowerbeds

[@JimmyLewisMows]

Lots of options out there. Fun to keep learning. I'm glad you brought up the corn gluten. I hadn't heard of that option until last year and found the same research you did. Pretty interesting.

[@Lawncology]

I never had luck with it. The rates continued to climb year over year after it can to market. It’s just an expensive organic fertilizer if you ask me.

[@dynopowdermonkey]

I’m ready

[@Ghostpeppers1]

You the man! Love your products and videos. That's a cats butt! Thanks again for all the free knowledge you give to all of us.

[@Lawncology]

Lol. Cats butt. That was a classic

[@docsteve309]

Hiya John!…I threw dithio on in the fall and very happy with the winter villains so far!…lookin forward now with you brother!👍👏👏☮️☕️

[@Lawncology]

It’s coming sooner than we think

[@LawnNOrder]

Very valuable information given in this one. 😎🌴👊

[@GirLzLawn]

Great information. Thanks John.

[@Lawncology]

Thank you 😊

[@johnfetter3252]

Just put prodiamine down this morning via a backpack sprayer.

[@jncbankston]

Good discussion. Lot of different ways to address. Thank you for sharing.

[@danieltaulbee]

What about tenacity? I'm using that this spring. It works pretty good on most weeds in a 2 step post emergent application, but I'd love to know how good it actually is a a pre-emergent.

[@robsolo4024]

For that number three for the flowerbeds when you spray it on the soil what happens if you get overspray or spray it on the existing shrubs that are in the beds will it affect them?

[@ionicatoms]

FYI it seems like isoxaben is in short supply right now. Been waiting for a delivery of the generic 75WG product for over a month. Not sure if it’s just one retailer or a bunch of them. Thanks, John for covering several in this video.

[@Lawncology]

You are correct. It’s on the short supply list

[@TurfMechanic]

Ohh man, ive been tossing around the idea of using corn gluten meal as my primary PE and organic fert this spring for a while now. I've read those studies and haven't been convinced one way or the other yet. I am pretty sure soil moisture comes into play greatly when using this as a weed preventer...but I still haven't decided

[@Lawncology]

I personally never had much luck. That isn’t to say it doesn’t work, but it’s use range may be more limited. You are correct that moisture plays an important roll. 1/2” at leas of water. The main issue I see is the amount needed for control (granular not liquid) and the amount of N that goes out. At one point the recommendation went to 40lbs per thousand… that exceeds the maximum allowable nitrogen rate in a number of states. The liquid is high use but more manageable. They isolated the protein/enzyme for inhibition

[@shreyaroraa2234]

If I have lot of weeds and POA for first few years. Can I use max prodiamine in spring and pendamethlyn/Dithophyr in fall. Any harm in using multiple pre-emergents?

[@reallmccoy9043]

There is also tupersan and mesotrione if your planning on doing any spring seeding!!

[@Lawncology]

Yes, I intentionally left a number of options out, Meso being one just to do a spring seeding video with options. This fits into a different speciality category for me. This is not an exhaustive list by any means, just some additional options.

[@UrbanDadLife2024]

I used corn gluten for the first time last year on my back lawn. I ran products sent to me by Lawnbright and this was the active ingredient in their pre emergent weed control. I never saw any increase in weeds, but that's probably because I had been using prodiamine on it for the past 3 years and the grass is really thick. I'm using the same products on that lawn this year, so I'm interested to see what kind of weed growth I get this spring. And you have to put a LOT of it down, its the product they send the most of.

[@Lawncology]

It’s a crazy high use rate and if your turf is strong and thick, you won’t get many weeds anyhow

[@UrbanDadLife2024]

@@Lawncology I definitely subscribe to that, it's all the work I did before it, rather than it controlling the weeds.

[@M3_86]

Mine is cover. They seem to take over the whole city lol

[@gatortalk6]

Great video! Quick question, and I apologize if you have already spoken to it. Can you mix pre emergents? I have put out prodiamine at about 3/4 max rate and does a great job on grassy weeds, but could I come back with another pre emergent to stop other issues in my zoysia like dollar weed or sedge type weeds like green kyllinga? Thank you

[@jperezgiz27]

I was wondering the same thing! I have a cool season lawn in the transition zone and was wondering if a combination of Prodiamine and say, Isoxaben, could be used in order to provide control over both types of weed issues. Of course following the label is key, but I’m curious if there would be increased risks of root pruning, etc. Would love to have John address this with the disclaimer, of course, to read the label properly.

[@superbeeblaze]

have you had much experience on sandbur prevention between Pendamethalin, Dithiopyr, and Prodiamine? I know the pendalum works but its just nasty stuff to work with, Dithiopyr lists sandbur in the lable as a target, prodiamine does not, however i read various literature saying it does? No real clear answer. Thanks

[@Lawncology]

I don’t personally. If stated on the label, there will either be suppression of control. Check which rate should be applied and go for it

[@PacificNorthwestLawns]

Is that the new side by side sitting outside there? 🤔 Great video bud. 👊🏼

[@Lawncology]

You know it.

[@PacificNorthwestLawns]

@@Lawncology oh boy.. just remember, just because you can doesn't mean you should... lol

[@teej5633]

Good stuff, as always, JP! What are your thoughts on Simazine? Seen some folks talk about it.

[@aceeoutlaw554]

Is atrazine safe?

[@Lawncology]

It’s as safe as the label states when used as directed in and on the area it’s designed to be used and with the equipment and ppe suggested.

[@Striperman]

Great info John. I will probably be applying something in the Fall depending on how the lawn develops over the course of the season. Very curious to see how the Glyphosate works on my lawn and if anything else will have to be applied. A lot of ifs this season for me 🤔😁

[@Lawncology]

Knowing you, the lawn will be the envy of the neighborhood.

[@thomasmeagher4801]

Very informative John.....just wondering will you be doing something similar with post emergent, fungicides and maybe insecticides about the time each is needed???? Thanks as always

[@Lawncology]

That’s the plan!

[@timothyrake]

What’s the difference between this and greenepunch other than a little higher N number?

[@Lawncology]

Greenepunch contains iron and sulfur in much higher amounts, as well as greater measure of humic fulvic and kelp.

[@ChevyGuy70]

Do you know of any way to ensure seed doesn’t move when planted on bare dirt. I’ve looked into tackifier and even mulch glue but can’t really find anything to really ensure the seed doesn’t move on a heavy slope of bare dirt if rain comes. Love the content 👍

[@Lawncology]

If it’s very steep, you may need to do a burlap/cloth type cover to hold it. Otherwise, I’ve used liquid polymers that worked pretty well without much loss or run slice seeders and basically gone back over when there was germination to help stabilize.

[@njphil1279]

Thanks John. I bought a 5lb jug of Prodiaimine WDG last year and wondering about the shelf life and how to store is so it doesn't lose effectivity.

[@Lawncology]

Keep it sealed and dry and it can last up to 3 growing seasons

[@jodip719]

Have you heard of a product called Whetstone? I have got poison hemlock growing in several areas that I mow along with many other weeds like thistle, crab and goose grass, clover.... It's an aminopyralid group 4 Herbacide. I've had some recommendations for it, but just looking for another opinion on it I guess.

[@Lawncology]

Is this for residential turf applications? I don’t see that listed on the label. I had not scene this particular product until now and it does come with quite a few restrictions.

[@jodip719]

@@Lawncology I don't believe it typically is, but I'm out on an acreage and also mow in non residential areas. What would you recommend to take care of poison hemlock that doesn't also kill any surrounding grass?

[@Lawncology]

@@jodip719 it has a lot listed, double check the label and follow the precautionary statements

[@richardharwell]

I had a quick question about pre- emergent. I put down "Spectracide" "Weed stop for lawns, plus crabgrass preventer" Can I pre- germinate seed in a bucket and over seed in spots since the seed has already germinated ?

[@richardharwell]

The active Ingredient is " Dimethylamine Salt . 3.74 %

[@Lawncology]

I suppose it’s possible but I’d say you’ll have a hard time establishing that. You’re better off to wait at least 8 weeks at this point.

[@richardharwell]

@@Lawncology Yeah I was thinking about waiting till May. I just renovated the backyard last fall. I don't use many pesticides or herbicides in the backyard because I have a dog. I just did my 2nd mow of the season yesterday. The new grass seems like it has established pretty well do well tried pulling on it and I cannot pull any of the grass out.

[@joshuariley2032]

What would you recommend to get annual bluegrass Under control in cool season lawn?

[@Lawncology]

turf.unl.edu/NebGuides/PoaannuaControls2010c.pdf

[@brandonhyden9454]

Still a few weeks out for me however prodiamine is here ready to go. Thoughts on split apps of prodiamine?

[@Lawncology]

I think it’s fine, but don’t wait too long between.

[@balooo2863]

John, whats the latest with RELZAR?

[@Lawncology]

Still under a supplement registration. Limited use and test sites.

[@christophercorbett7433]

Can you spray prodiamine in garden beds(obviously not on shrubs) but in open areas?

[@Lawncology]

Read this: homeguides.sfgate.com/chemicals-not-kill-plants-57798.html

[@christophercorbett7433]

@@Lawncology thank you John. I appreciate it

[@petrosxp]

to apply any pre-emerge herbicide, what should be the soil temperature and at what depth do we measure?

[@Lawncology]

Use this tool: www.greencastonline.com/tools/soil-temperature Typically 50-55 degrees. Honestly, when I see bulbs beginning ti emerge in flowerbeds, it’s go time.

[@petrosxp]

@@Lawncology thank's mate!!!

[@edrumsas5420]

Great video. Is there anything in the market that can be used in flower beds that will prevent grass (not weeds) from growing?

[@Lawncology]

Trifluralin. That’s the active in Preen.

[@edrumsas5420]

@@Lawncology thanks John. I can’t seem to find anything that contains just that product. Don’t want to kill the annual’s just the grass the grows in between the flowers.

[@samuelasamoah6906]

Can i combine prodiamine and isoxaben or dithiopyr and isoxaben, cos i want broaden the control net. Anyway my lawn will be really thin cos i plan on killing most weeds in my lawn which is about 50-60%. I am bit skeptical if the my desirable grass will creep into the bare areas afterwards having these pre-emergent combinations in the soil. Do i have cause to worry or not?

[@Lawncology]

You could do the low rates of either or perhaps mid rate but you may want to go isoxaben first appand dithiopyr second.

[@samuelasamoah6906]

@@Lawncology ok

[@AroundHouse]

Hey John, I'm in DFW are and applied Prodiamine and made a bobo, I applied it at maximum anual rate of 24 grams/1000sqf because I walked to slow, this is on Common Bermuda. Also did an application in the fall of 12grams/1000sfq. Should I be worried?

[@Lawncology]

Hey Adrian, depending on your spacing, you are probably fine but may have some restricted growth on your Bermuda in the first part of the growing season. 2 things: 1. Don’t worry much about it 2. Don’t apply any more!

[@AroundHouse]

@@Lawncology Thank you John. I hope Bermuda will be fine. :)

[@spankyslawncarellc7822]

John what would you recommend for thistle? I have area covered with wood mulch (hardwood). Thistle pops up all the time. I've used snapshot before I apply a fresh top dressing. But it seems not to touch it.

[@Lawncology]

You may want to try ronstar. It really depends on the type of thistle.

[@hortdog00]

Can someone make something that actually works on triv please?? That’s isn’t 600 bucks

[@Riverguide33]

👍

[@ColeSpolaric]

Stop them before they start? Say what!? 🤣🤣🤣

[@Lawncology]

Thank you for that tagline Scotts! 🤪