Roundup resistant weeds

[mudcreek183]

Has anyone had to deal with roundup resistant palmer pigweed we have the marestail and ragweed under control but they say this is even worst it's not here in middle Tennessee yet bot they say it's getting here from what they say it will grow 2" a day even in a drought

 

[1923 Gleaner]

Here in Southern Kansas you could soak marestail in Roundup with no effect. All the weeds are becoming resistant.

 

[Haley]

It is TERRIBLE! We have it here in central Ga and if you dont really stay on top of it very early on you will lose the fight quickly.Lots of cotton farmers have resorted to hand pulling whole cotton fields and hauling literally dump trailer loads out of the field.If it ever gets above 6 inches high it is trouble to kill.We harrowed a streak behind my shop just to knock down some old sorghum stalks and two weeks later you honestly couldnt see the ground for the pigweed.

 

[sdc eastern ia]

We have waterhemp, mairstail, giant rag, and now velvetleaf is showing signs of resistance. Old chemistry seems to work but that will be short lived.

 

[yessam]

We have the marestail and some johnsongrass now in southern Tn. We have been using ignite or liberty as a burndown with some valor so far it has worked on the maretail escapes we have had good luck with spiking the roundup with classic it has worked so far they say first rate will kill it but the farmers here say that the marestail just laugh at it.

 

[A. Liberal]

So Darwin was right about evolution!!! Looks like they are evolving to me....how about you?

 

[paul]

'They' shoulda left one crop in each growing area that was not roundup-type. So every 3rd year at least, would be a different chemistry.

Resistance came about from (typically more southern) areas where notill isa popular, and so they sprayed, planted, sprayed, and sprayed. Roundup each time, and often reduced rate because it was cheaper.

It's not evolution, I'd look at it as selection. Just like small pox was heck on the Native American population, Roundup was heck on weeds, but some of each were inmmune & survived. But probably only a war of words, get to the same place.

--->Paul

 

[flying belgian]

I've got some resistance too. Can pour roundup right out of the jug and they still won't die. I changed to Liberty corn and soybeans but after enough years they will become resistant to that too.

 

[casecollectorsc]

Spraying corn I add Clarity to the roundup to make a better kill on the broadleaves.

 

[A. Liberal]

Well....what drives evolution? Selection perhaps?

 

[KFD68]

In Britain Mares' Tail is a serious problem too. In small infestations they have found by damaging the stems mechanically to bruise or damage the stems the kill rate of Roundup is dramatically increased.

In Wales & Scotland on mountains there is a similar problem trying to kill Bracken with sprays. They have been rolling the Bracken with spiked or fluted rollers first before they spray, the chemical can enter the damaged plant better than just spraying where the chemical just rolls off the foliage.

 

[RevJJ]

Anybody remember a magical device called a "cultivator?"

 

[Bradley K]

Show me the weed turning into something else. In any population of plants there are some that will be resistant to a chemical, these are selected for over time by using the same product, causing resistant weeds. Call it what you will, it is not the "evolution" that Darwin was talking about.

Resistant weeds are more a symptom of the curse from Genesis, causing thorns of the field and man having to work by the sweat of his brow.

You can believe what you want, and many will; but God's word is true, and is the same yesterday, today, and tomorrow. He created this earth, created man on the sixth day, and gave him a mandate to have dominion over it. This mandate still stands, but it is flawed by man's disobedience.

 

[1923 Gleaner]

(quoted from post at 11:59:06 06/03/12) Anybody remember a magical device called a "cultivator?"

You are correct. I also us something foreign to young farmers today. It's called a Moldboard Plow! Last year two of us plowed 2400 acres of wheat land. Many scoff at us but we don't have the Rye and Cheatgrass problems the college boys have.

Kinda hard to farm 1/2 of the county using our "old fashioned" ways tho.

 

[Anonymous-0]

I do. I have a 4 row MF s-tine for sale. $450.00 Located in NC

 

[Anonymous-0]

I am mainly a corn farmer and I am getting away from roundup
altogether. I have a yellow nutsedge problem. Round up won't touch
that. Yukon is what I have been using the last few years.
BS

 

[Piddletime_SC]

I have fought them, they will turn a beautiful crop into goat hay.......lately I have been winning. With pigweeds the key is effective pre-emerge, quick crop canopy, and handling the little pigweeds that will escape very early (with something other than roundup-crop specific) The two inches during a drought is very real... thats not an exageration. If you think that you may be getting close to this problem act early. If they get away from you that first year you will catch heck for several years after...They produce seed by the thousands. Liberty is a good product, but the pigweeds will become immune to that as well.. I belive much sooner than roundup due to liberty's mode of action as a contact herbicide.

 

[paul]

Many possibilities to the wonders of the world.

--->Paul

 

[Mike Aylward]

Very true, Bradley K. Couldn't agree more. Mike

 

[Gary in Texas]

I know thats right JJ, I know some folks who are spray happy, everything has got to be about spraying, not saying that some spraying is not needed but it's way over done.

 

[Gary in Texas]

http://www.youtube.com/watch?v=QVCZ_GieVyw&list=FLlZHufveejtKl5upbKCvKbQ&index=2&feature=plpp_video

 

[cumminspuller]

There may not be resistant marestail yet in middle TN. I live in southern mid. TN and work in Northern AL. There are resistant marestail here. Palmer pigweed in areas are resistant to an extent. Several farmers are switching to Ignite/Liberty crops here as well. It'll buy a few more years but then it will be the same thing all over again.

 

[tomNE]

marestail here in NE is a problem also! as far as the comments about plows and cultivators; if we used those; there wouldn't be a problem as any moisture to raise crops would be gone and we'd just as well not plant anything!!! We basicly have to slot plant and never distrub the soil or all our moisture flies away!

 

[JWWnGA]

It seems like we have pigweed here that grows without water.All it has to do is get cloudy and they take off.