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lawnguru wannabe
07-24-2011, 07:21 PM
I have a big broadleaf problem in my yard. I bought some Gordon's LV 400 2-4d to take care of the broadleafs and alfalfa in my yard. Is this sufficient?

Also, I just got done mowing the yard, and was about to spray with my 20 gallon pull behind, but after doing some reading a lot of people are saying I should wait a few days after mowing then spray, so that the weeds have more coverage to take in the chemicals?

Thanks!

greensolutions1
07-24-2011, 09:26 PM
careful with 24d in the heat

cgaengineer
07-24-2011, 09:29 PM
Do not use that on your lawn at this time...if I'm not mistaken that's and ester based 24D.
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DLCS
07-24-2011, 09:40 PM
Yes, it is Ester based.

superiorlawnsofwestok
07-24-2011, 10:16 PM
Don't use a ester based product when temps are going to be above 80 degrees. There are water based products on the market that significantly reduce chance of off target drift but there is still some risk involved. If alfalfa is a problem i seriously doubt amine or esters will be of much use. My suggestion would be a combination of Manor and some type of dicamba based product. be careful around flower beds and the dripline of trees. Good luck...perennials usually require multiple treatments. nd yes...allow 5 days of regrowth, also at least 3 days after before mowing again.

lawnguru wannabe
07-24-2011, 11:43 PM
that stuff that i have isn't good for lawn applications then? it was bought in the farm section at fleet farm....i just saw 24-d and thought it would be good?

ok, so i have a huge jug of it....can i still use it for something? ....and what would you recommend for me to spray to get rid of the dandelions, alfalfa, and broadleaf weeds? i have a TON of broadleaf weeds in my yard now. just all of a sudden showed up....they weren't that bad before. this spring i had a ton of dandelions. if you could give me suggestions of what to get that would be awesome. i'm a newbie!

thanks!

ps i didn't spray yet, thankfully.

garydale
07-25-2011, 09:33 AM
The ester base is for use in cool/cold weather.

Fall is the best time to control broadleaf weeds.

Use the ester about the time of your first frost. It will clean up the broadleaf weeds and get the winter annual as well.

If you have early weeds like onion/garlic in spring ester will do a good job.

lawnguru wannabe
07-26-2011, 02:06 AM
Ok this is what I found when I googled the product I have:

What's the difference between LV 400 and Amine 400 and which should I use?

LV 400 is a 2,4-D weed control product that is an ester, or oil-based formula. LV 400 provides great control of weeds in a variety of areas including pastures, some crops and lawns. LV 400 is the preferred product when air temperatures are below 60°, when it's dry, if you're using very hard water or if you're attempting to kill brush or plants with milky sap. Amine 400 is a water-based 2,4-D weed control product that is also used for control of weeds in pastures, some crops, lawns and more. Amine 400 is usually more economical and can be used when temperatures are 60° or above and soil temperatures are 55° or more at the time of application. It's excellent for mixing with other water based products, such as Liquid Lawn & Pasture.

lawnguru wannabe
07-26-2011, 02:13 AM
My question after reading everyone's post here, and with the info that I googled, should I just wait till the fall when temps aren't getting above 60 degrees to spray for my broadleafs, dandelions, and alfalfa, with that LV 400? ....or should I get some Amine 400? I've always heard that you kill the dandelions in the fall, but that must be for the rest of the broadleafs and alfalfa too?

Thanks for all this info....I've learned a lot already just by these few posts here.

RigglePLC
07-26-2011, 02:47 PM
The ester can evaporate and the vapors drift downwind. But it is a low volitile ester--so not as bad. A lot depends on what is downwind and how much wind and what temperature. Grapevines are very sensitive--likewise tomatoes and young soybeans. Also, what pressure are you using (low is better) and with the nozzles you have in mind how much of the droplets are fine enough to drift or evaporate? Dandelions are best attacked in the fall after a few fall rains--a good kill means no dandelions in the spring.
Still...if you are willing to accept the risks of drift--choose a day or night when the wind is low and temps below 80. High humidity is best.
And find out what broadleaf weeds you have. Do you mean crabgrass? (2,4-d doesn't kill crabgrass). More likely you mean summer annuals--a pro would have sprayed these about a month ago when they were young and tender. Mature and resistant now. And many of the summer weeds are killed by frost. Where you live that's about 4 weeks away--or am I wrong?
Don't worry about not mowing before hand. You are trying to apply the spray to the stem--not the leaves.
In any case Wannabe, let us know what happens, OK?

lawnguru wannabe
07-26-2011, 10:21 PM
Not sure on the pressure. It's a pull-behind Fimco. Here's a link to what I have:

http://www.fimcoindustries.com/trailer_sprayer_economy.html

The first frost here hits usually mid October sometime....Maybe a week or two sooner sometimes. I am willing to wait till fall to spray, that's not an issue. I'll take a picture of some of those broadleafs and give you an idea, but I think they are these:

http://www.bigga.org.uk/about-us/magazine/back-issues/02-2009/what-makes-aul-turf-weed/01035.html

What would you suggest to spray in the fall then to kill the dandelions, broadleafs, and alfalfa?

Thanks much!

nik
07-28-2011, 06:37 PM
I'll also stress that you hold off till fall. That's for ANY of phenoxys and in any formulation. Some guys here are masters of the dance at keeping that stuff where it is supposed to be in hot weather. We're infested with high dollar vineyards on the west side of the mountains and more than a few homeowners have had their home insurance dinged for severely damaging grapes.

It will volatilize even 4 days after application. Happened to me when the weatherman botched the forecast. Sprayed, had three days of mid 70s and the fourth it was 102˚. Fortunately it was at my place and all I hurt was my veggies.

Nice thing about fall is a lot of the woody vegetation and trees are starting to shut down for the year and most gardens are done. It's just harder to cause problems then.

RigglePLC
07-28-2011, 10:48 PM
You have the proper product for fall spray of dandelions. I am not sure about alfalfa--never tried that. The summer annuals will be killed by frost. (spurge, purslane,pigweed, crabgrass). For the tougher weeds something like Gordons Trimec is a better choice. Or maybe Ortho Weed B Gone Max.
The sprayer looks like the boom is almost 24 inches high. A boom that is closer to the grass is less likely to drift--but you might need more nozzles.

greendoctor
07-29-2011, 02:25 AM
That sprayer has two conventional flood jet nozzles mounted high. Recipe for drift. A better set up is AI fan tips set at 16" above the ground. Flood jets put out a wide range of spray particles, many of them are fine enough to blow off target. I spray in a region where 10 MPH is a calm day. I use AI 110 nozzles 20" apart and 16" above the ground.

Your LV 400 is best used when it is not going to go above the 80s within a week of application and the humidity goes down. To kill volunteer alfalfa, you will need more than 2,4-D. I am thinking something like PBI Gordon Super Trimec or T Zone. Both of those products have other herbicides in combination with the 2,4-D ester that will do a good job controlling a deep rooted leguminous plant.

Ric
07-29-2011, 09:57 AM
That sprayer has two conventional flood jet nozzles mounted high. Recipe for drift. A better set up is AI fan tips set at 16" above the ground. Flood jets put out a wide range of spray particles, many of them are fine enough to blow off target. I spray in a region where 10 MPH is a calm day. I use AI 110 nozzles 20" apart and 16" above the ground.

Your LV 400 is best used when it is not going to go above the 80s within a week of application and the humidity goes down. To kill volunteer alfalfa, you will need more than 2,4-D. I am thinking something like PBI Gordon Super Trimec or T Zone. Both of those products have other herbicides in combination with the 2,4-D ester that will do a good job controlling a deep rooted leguminous plant.

Green

The Ric-A-Green is a Walker Lawn Mower turned Spreader Sprayer. On the very front of the deck is a boom 8 inches off the ground and nozzles just over 8 inches apart with the same nozzle tips with one exception. Right at my 12V pump is a in line Drip irrigation fixed 20 PSI Regulator. This Regulator is right up against the pump so there is no place for a pressure build up. That way the pump cut off switch works as a instant shut off. I did have to adjust the pressure switch on the 12V pump to get it working smooth.

BTW the Pump is wired to a Horn button on forward control Handle. That Horn button must be held down to spray. I tried toggle switches etc and found the horn button works best when doing smaller or tight areas.

In designing this low boom I made a template of the 110 degree spray nozzle out of putting 20 lb bond paper together. I was then able to measure any reasonable boom height to spray width ratio easily before putting the boom together. I kept that template for next time I do a boom. Once I had the basic design build I tweaked it by spraying straight water on concrete to get the pattern adjusted perfect.

bx24
07-29-2011, 09:00 PM
BTTT on this one.

lawnguru wannabe
08-03-2011, 12:31 AM
Sorry I've been MIA for a bit. Thanks for all the wonderful info....

Nik - so you think fall would be the best time then? How bout every year, just do it once in the fall? I've talked to some guys and they spray in the spring and fall.

RigglePLC - so keep the stuff that I have and spray that in the fall? maybe i'll try that and see how it does on the alfalfa and then go from there

greendoctor - i can move this boom up and down. i'm not sure how low it goes, but it's quite the range i think.

would you guys suggest i spray more than once a year? what about the annuals....those are obviously best to be killed in the spring right?

thanks again!

lawnguru wannabe
09-30-2011, 06:10 PM
hello! i'm back. we had our first frost about three weeks ago. pretty early for these parts, but nonetheless, i was planning on spraying for the first time here in a week or so. everyone has stated that the amine 400 that i have is the way to go for dandelion and broadleaf control correct? also, i have a slight alfalfa problem....and you guys have said that this will prob not kill the alfalfa and would need something else. i would need something that will kill the alfalfa but not the grass.

that sprayer that i have, does anyone know if i can switch out the nozzles? sounds like mine would not be very good as far as drift is concerned. i just don't want to kill some trees that i have where i'm spraying.

one last thing...fertilizer. am i better off putting the winter fertilizer down that comes in the pellets? this is what i put down in the spring. there is a gordon's weed and feed spray out there, and wondering what everyone thought of that? i have about 2 acres right now to spread. i do have a riding lawnmower and could use a pull-behind spreader, but most of the ones i have seen open up on the pull-behind, so if you stop, there is no way to close it unless you jump off very quick and even then you end up spilling quite a bit.