Giant Ragweed...

/ Giant Ragweed... #1  

Watain

New member
Joined
Aug 29, 2011
Messages
12
Location
Southwest, Virginia, USA
Tractor
1972 Ford 3000
Got them all over my land, there as tall as my barn! Anybody know of any really good Herbicide to get rid of them?
 
/ Giant Ragweed... #2  
Roundup or roundup mixed with a little diesel if it is a non essential area or driveway.
 
/ Giant Ragweed... #3  
It's not giant hogsweed I hope. Dangerous stuff.
 
/ Giant Ragweed... #4  
It's not giant hogsweed I hope. Dangerous stuff.

Seriously? Dangerous? :confused2:

'Splain it to me please... Cause I got some HUGE weeds in the clearcut area I'm going to start working on soon as my tractor arrives.

Thanks in advance!
David
 
/ Giant Ragweed... #5  
Giant hogweed looks like queen anns lace on steroids. If you find it on your place "Don't touch it".

Call your local extension service and have someone come out to take care of it. It contains some kind of chemical the will burn your skin if you cut it down. What's worse is the burned area becomes very sensitive to sun and will flair up for many years after exposure.

It's nothing to mess with.

Most states have people trained and suited up to handle it, so let them take care of it.
 
/ Giant Ragweed... #6  
Here's a link to a good site with giant hogweed photos and information. Below are two photos of giant ragweed. I can see how you might get them confused, but I think ragweed is far more common. At least it's very, VERY common here in Texas. We also have something called pigweed or careless weed (3rd photo). If you have hayfever, stay away from careless weed when it is in bloom and producing pollen. It will make you sneeze your head off. I've chopped thousands of pigweed plants out of row crops as a kid. Some of the big plants can have a tap root 2" in diameter and bright red on the outside.
 

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/ Giant Ragweed... #7  
Here's a link to a good site with giant hogweed photos and information. Below are two photos of giant ragweed. I can see how you might get them confused, but I think ragweed is far more common. At least it's very, VERY common here in Texas. We also have something called pigweed or careless weed (3rd photo). If you have hayfever, stay away from careless weed when it is in bloom and producing pollen. It will make you sneeze your head off. I've chopped thousands of pigweed plants out of row crops as a kid. Some of the big plants can have a tap root 2" in diameter and bright red on the outside.

Lucky we don't have any giant hog weed on our property or creek. It is only a few miles away, likes to grow in wet areas or creeks. It's mainly the sap that is the problem. The sap of Giant Hog weed causes phytophotodermatitis in humans, resulting in blisters, long-lasting scars, and if it comes in contact with eyes it can result in blindness. These serious reactions are due to the furocoumarin derivatives in the leaves, roots, stems, flowers, and seeds of the plant.
It burns your skin and the sun can accelerate the process, it can last for years if you get the same area you burnt exposed to the sun.
The stream keepers and other groups in our area are trying to get rid of it, but like a lot of other invasive things it is tough to get rid of once it's established.
 
/ Giant Ragweed... #9  
i use howse, servis/rhino, or king kutter brand herbacide onmy 7' ragweed!

soundguy
 
/ Giant Ragweed... #10  
Here's a link to a good site with giant hogweed photos and information. Below are two photos of giant ragweed. I can see how you might get them confused, but I think ragweed is far more common. At least it's very, VERY common here in Texas. We also have something called pigweed or careless weed (3rd photo). If you have hayfever, stay away from careless weed when it is in bloom and producing pollen. It will make you sneeze your head off. I've chopped thousands of pigweed plants out of row crops as a kid. Some of the big plants can have a tap root 2" in diameter and bright red on the outside.

JinMan,

BLESS YOU! Awesome links. I KNOW I have giant rag weed, I am now educated on Giant Hogweed (OMG! That stuff sounds like a horror movie!).

Thank you sir!
David
 
/ Giant Ragweed... #11  
I have been "blessed" with that weed on my property as well. I tried Roundup for a few years and had limited success. The kill off was successful, but the area reseeded itself just as successfully the following year.

I have found that since I got my tractor and mow this area low I have not had a crop this year. Last year I kept the field cut as close to the ground as possible (2" was highest cut) and cut everytime the weeds hit knee high. This year I have only a fraction of the plants I had last year and combined with our drought, I have only had to mow twice this summer before they all died out.

Compared to the years before when I had someone else mow and it reached at least 6-10 feet between mowings, the growth is almost eliminated now. My first year on the property the field was so dense as to be impossible to walk through once the plants hit 4 feet tall. My old garden tractor was too light to even push them over before. I have not so fond memories of trying to mow the 3-4 foot tall plants with the rider and sitting in the seat at a 45 degree angle looking up the stalks because they were supporting the front end of the garden tractor. The L3700 is much more capable of dealing with these miscreants. :D

I have quit using herbicides since I am able to do the more frequent mowing and am very happy with my results.
 
/ Giant Ragweed...
  • Thread Starter
#12  
Roundup or roundup mixed with a little diesel if it is a non essential area or driveway.

I may try that, I'm using the Round-up concentrate with the red cap. The places I have them, are places I can't get to with a tractor. I could have cut them down with the weedeater, but I didn't get it until June and the weeds were already 5ft tall by then...

i use howse, servis/rhino, or king kutter brand herbacide onmy 7' ragweed!

soundguy

Where can you buy that? Know of anything they sell at TSC that will kill them?
 
/ Giant Ragweed... #13  
Depends on what else you want to kill. Roundup will get everything. Dow AgroSciences makes several good products. In Texas you can use Chaparral if you do not have an applicator license, GrazonNext if you do. Chaparral will kill Bahai, GrazonNext will not.

Ragweed ? Giant

Texas Department of Agriculture
 
/ Giant Ragweed... #14  
2-4-D works very well for me. 2-4-D, water and some dish soap. Buy in 1 quart bottles over the counter.
 
/ Giant Ragweed... #15  
Where can you buy that? Know of anything they sell at TSC that will kill them?

sorry.. that was my attempt at making a funny.. those names I mentioned are rotary mowers.

you can for sure sprae roundup or s4d or glyphosate.. etc.. but they will kill somewhat indescriminately around it.. same as using salt water.

i just mow mine down..

soundguy
 
/ Giant Ragweed... #16  
I may try that, I'm using the Round-up concentrate with the red cap. The places I have them, are places I can't get to with a tractor. I could have cut them down with the weedeater, but I didn't get it until June and the weeds were already 5ft tall by then...



Where can you buy that? Know of anything they sell at TSC that will kill them?

That last part was a joke, referring to Bush HOg brand names!

You can get generic Glyphosate with a surfactant, make sure your buying 41% glyphosate according to the label. You should be able to get a gallon of concentrate at TSC for $30 or so, the quarts at walmart ore $20 for roundup brand!! I got 2.5 gallons of 41%gly at agrisupply for $34 this year!

And those of you are correct Glyphosate only kills living plants and is not soil active, meaning you have to hit green tissue with it as well. You can pour the stuff on the ground at the base of a tree and do nothing unless there is a root injury that its flooding.
 
/ Giant Ragweed...
  • Thread Starter
#17  
sorry.. that was my attempt at making a funny.. those names I mentioned are rotary mowers.

you can for sure sprae roundup or s4d or glyphosate.. etc.. but they will kill somewhat indescriminately around it.. same as using salt water.

i just mow mine down..

soundguy

Ahhh! I realize that now, I'm a n00b... :ashamed: I can mow some of them down, but where I have them the worst I need a sickle bar mower to get to them with. I'll have to wait until tax season until I can get one of those..
 
/ Giant Ragweed... #18  
i'm not sure I'd sacrifice a good 'hay' mower on ragweed.. :)

perhaps an offset flail mower.. :)

soundguy
 
/ Giant Ragweed... #19  
i use howse, servis/rhino, or king kutter brand herbacide onmy 7' ragweed!

soundguy

just make sure to hose it off thoroughly afterwards ... the sap remains phototoxic for a loooong time. We've got wild parsnip up here, had some pretty good burns this year from it.
 
/ Giant Ragweed...
  • Thread Starter
#20  
i'm not sure I'd sacrifice a good 'hay' mower on ragweed.. :)

perhaps an offset flail mower.. :)

soundguy

A flail mower would be awesome, but I'm thinking of something that I can get for $500-$1000. We used to use a Ford 600 tractor, with a Ford 501 sickle mower. :) Whenever I do eventually get into hay work, I'll probably end up with a disc mower.
 
 
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