Herbicide Resistance

Commodity Marketing

Tools

Herbicide Resistance

Sep 25, 2020 | 10:03 1 Often puzzled why Agriville rarely talks about agriculture, so, what ya gonna do about herbicide resistance?

Hope it just goes away? Expecting someone else to solve the problem? Can policy help? Regulatory? Reply With Quote
Sep 25, 2020 | 10:07 2 Its a chemical company sales tactic. Reply With Quote
Sep 25, 2020 | 10:10 3 Not completely. Reply With Quote
helmsdale's Avatar Sep 25, 2020 | 10:18 4 Trying to push it off with rotations of chemical groups, and crops. Chemfallow has turned kochia into a near perfect super weed around here.

Its straight up resistant to group 2's, 4's, and 9. Edge, and group 14/15s are seeing reduced efficacy, and glufosinate hardly wings them.

A competitive crop, or steel are about the only things that keep them held back... Reply With Quote
  • 2 Likes


  • Sep 25, 2020 | 10:22 5 Might need a lesson here.

    Start with chem groupsmode of action

    Examples
    Group A Halxyfop quizlafop verdict targa
    Group b imazymox intervix raptor imazypic midas onduty
    Group L diquat paraquat
    Group M glyphosate

    Do youbhave same grouping/labelling not sure if itcworldwide Reply With Quote
    Sep 25, 2020 | 11:07 6 No known resistance issues here yet. Trying to keep it that way.
    My main strategy is to minimize chemical weed control of any type as much as possible. Lots of moisture, competitive crops and seeding later all help make that possible.
    All no-till most acres get a preseed burn down, mainly for grasses. I am often able to avoid any in crop herbicide on cereals.
    I don't see the economics to zero tolerance. It might impress the neighbors, but there is an economic threshold to any pests, and timing when they are a problem, and when they are just unsightly.
    Wild oats are a fact of life with all the cowboy neighbors growing bin run wild oats/tame oat blends, so I don't want to lose options to control them due to resistance, so I only spray as rarely as possible, and only infected areas. Reply With Quote
    Sep 25, 2020 | 11:18 7
    Quote Originally Posted by AlbertaFarmer5 View Post
    No known resistance issues here yet. Trying to keep it that way
    I hope your right, but I can't see how group 2 resistant kochia hasn't spread everywhere. We had it 15 years ago. Lucky that we don't have anything resistant to glyphosate though. A few ounces of LV 700 in glyphosate really hammers everything. Reply With Quote
    Sep 25, 2020 | 11:44 8 I have a multi crop rotation. Not two, not three. Like six various crops. Same crops doesn’t see same land for at least six years, up to twelve if my forage program works out. And then forages as well. A six year forage stand does wonders for weed control. It is also quite profitable. Hay prices have been high for years, I am surprised more guys don’t throw in a bit of hay? Good for so many things, soil and weeds included.

    I’m not very concerned about resistance. Kind of far down the list for me. Reply With Quote
  • 2 Likes


  • Sep 25, 2020 | 13:03 9 Any time a spray doesn’t work the first Words are oh must be resistance. Reply With Quote

  • Sep 25, 2020 | 13:31 10 I would say the chemicals worked better this year than the last 5.

    Last yr the wet conditions kept the dry weeds in check, this yr the reverse.

    Fields look awesome. Sprayer is parked. Reply With Quote
  • 1 Like


  • Sep 25, 2020 | 14:05 11
    Quote Originally Posted by tweety View Post
    Often puzzled why Agriville rarely talks about agriculture, so, what ya gonna do about herbicide resistance?

    Hope it just goes away? Expecting someone else to solve the problem? Can policy help? Regulatory?
    Common sense
    Crop rotation , herbicide rotation , addition of edge , rival , assert , you know some of the golden oldies ., plus increased seed rates on cereals . Additional certain foliage’s helps wth increased herbicide control .
    Several options Reply With Quote

  • helmsdale's Avatar Sep 25, 2020 | 15:46 12
    Quote Originally Posted by sk_wheatking View Post
    I hope your right, but I can't see how group 2 resistant kochia hasn't spread everywhere. We had it 15 years ago. Lucky that we don't have anything resistant to glyphosate though. A few ounces of LV 700 in glyphosate really hammers everything.
    you can lay on 540g/ac of glypho, full rate express SG, 4oz of 2-4D, and 2oz of banvil, and the kochia laugh it off!

    1.3L of glufosinate at best kinks them.

    540g of glypho with full rate heat, blackhawk, goldwing, aim, or even double rate distinct and they at best quit getting any taller... They still set seed and fail to dry down.

    Hit them with reglone and they sort of defoliate. Sometimes they require 2 passes. Reply With Quote
  • 1 Like


  • Sep 25, 2020 | 16:19 13
    Quote Originally Posted by sk_wheatking View Post
    I hope your right, but I can't see how group 2 resistant kochia hasn't spread everywhere. We had it 15 years ago. Lucky that we don't have anything resistant to glyphosate though. A few ounces of LV 700 in glyphosate really hammers everything.
    I assume we are too cold, or too wet, or these really high quality weeds that everyone else gets to deal with just don't like compacted acidic grey wooded clay. We don't have Kochia, or Cleavers, or foxtail(almost none), or brome ( except the tame stuff that gets seeded on purpose). Reply With Quote
    Sep 25, 2020 | 16:27 14 [QUOTE=helmsdale;466770]you can lay on 540g/ac of glypho, full rate express SG, 4oz of 2-4D, and 2oz of banvil, and the kochia laugh it off!

    1.3L of glufosinate at best kinks them.

    Getting lost here ounces per acre then 1.3 L again per acre?

    Give you some standard rates here you will have to wirk back.

    Glyphosate at 450g/ litre active rate is around 1.8 litres per ha at 80 lt per ha water rate.

    Paraquat 1.5 lt per ha 100 lt per ha water rate.

    Halaxfop or verdict 100 ml per ha water rate 80 lt per ha.

    Dicamba were used in a mix 300 ml per ha.

    Avadex 1.6 to 2 litres per ha.

    Mostchemicals here applied in 3 chem mix just not a single product. And rotated.

    Interesting work our worst weed for many is ryegrass. For somehuge resistance issues.
    If resistanct ryegrass is not sprayed zero chemicals nothing for 4 years the resitant plants are actually choked out by susceptable plants and when spraying returns in yr 5 the whole field is once again susceptible to all chemicals. Really new way to approach restance by just leaving it for grazing Reply With Quote
  • 1 Like


  • Sep 25, 2020 | 16:40 15 Resistant kochia is a reality down here in the SW corner where we farm. Weeds are getting harder and harder to control . A poster on this forum was mentioning Glyphosate with 24-d. AAHH I remember those days. That works good for us for maybe 2 applications on chem fallow , after that nothing, maybe stunts them and that's it. Although if we would get some decent moisture on a regular basis in this godforsaken country I live in , it would help also. I do think that obviously water is a big factor in the effectiveness of the chemical , and I know all of you guys know that. Cultivator , and my trusty MF 360 discers ( I can hear a few of you cringe !) are being used where and when needed. Steel still has it's place down here. I am planning to increase seeding rates on my durum next spring. It has always worked for triticale and rye , so it's worth a shot. Planning also to use Authority for pre-seeding on pea ground also.

    I like what I do , but sure would take some of the rain on a regular basis. Some of the BTO's around this area ( no offence to any of them ) are putting a LOT of $ into equipment and only getting at most a 25 bu/acre crop. To me the math does not work, but good on them. I heard there were some pulse crops in my area that only were yielding 5-10 bu/ac , so not too many payments made on that income.


    Have a good weekend everyone , and here's to a good harvest ! Reply With Quote
  • 3 Likes


  • Sep 25, 2020 | 16:56 16
    Quote Originally Posted by tweety View Post
    Often puzzled why Agriville rarely talks about agriculture, so, what ya gonna do about herbicide resistance?

    Hope it just goes away? Expecting someone else to solve the problem? Can policy help? Regulatory?
    Thanks for bringing up an ag related topic. I think I know how to solve your puzzle though.
    If you click on the posters name in the column under the word author, then click on the link for find all threads started by, and do that for the most prolific posters, you will find a pattern, a few bad apples start most of the off topic threads( on both sides of the debate). A couple of particularly prolific thread starters haven't started a thread about agriculture in years, except the incidental post ranitng about big chemical companies. Too many of the rest of the threads are in response to a previous thread by one of the non farmer types.

    Probably it is time to quit responding to Chuck again, he does seem to be less prolific if I quit taunting him. It would be a good start. But because this is a thread with agriculture in the title, he won't see this, and won't even know he is being ignored. Reply With Quote

  • Sep 25, 2020 | 17:32 17
    Quote Originally Posted by GALAXIE500 View Post
    Resistant kochia is a reality down here in the SW corner where we farm. Weeds are getting harder and harder to control . A poster on this forum was mentioning Glyphosate with 24-d. AAHH I remember those days. That works good for us for maybe 2 applications on chem fallow , after that nothing, maybe stunts them and that's it. Although if we would get some decent moisture on a regular basis in this godforsaken country I live in , it would help also. I do think that obviously water is a big factor in the effectiveness of the chemical , and I know all of you guys know that. Cultivator , and my trusty MF 360 discers ( I can hear a few of you cringe !) are being used where and when needed. Steel still has it's place down here. I am planning to increase seeding rates on my durum next spring. It has always worked for triticale and rye , so it's worth a shot. Planning also to use Authority for pre-seeding on pea ground also.

    I like what I do , but sure would take some of the rain on a regular basis. Some of the BTO's around this area ( no offence to any of them ) are putting a LOT of $ into equipment and only getting at most a 25 bu/acre crop. To me the math does not work, but good on them. I heard there were some pulse crops in my area that only were yielding 5-10 bu/ac , so not too many payments made on that income.




    Have a good weekend everyone , and here's to a good harvest !

    Normal yields here tiswhat it is Reply With Quote
    Sep 25, 2020 | 17:33 18 [QUOTE=malleefarmer;466774]
    Quote Originally Posted by helmsdale View Post
    you can lay on 540g/ac of glypho, full rate express SG, 4oz of 2-4D, and 2oz of banvil, and the kochia laugh it off!

    1.3L of glufosinate at best kinks them.

    Getting lost here ounces per acre then 1.3 L again per acre?

    Give you some standard rates here you will have to wirk back.

    Glyphosate at 450g/ litre active rate is around 1.8 litres per ha at 80 lt per ha water rate.

    Paraquat 1.5 lt per ha 100 lt per ha water rate.

    Halaxfop or verdict 100 ml per ha water rate 80 lt per ha.

    Dicamba were used in a mix 300 ml per ha.

    Avadex 1.6 to 2 litres per ha.

    Mostchemicals here applied in 3 chem mix just not a single product. And rotated.

    Interesting work our worst weed for many is ryegrass. For somehuge resistance issues.
    If resistanct ryegrass is not sprayed zero chemicals nothing for 4 years the resitant plants are actually choked out by susceptable plants and when spraying returns in yr 5 the whole field is once again susceptible to all chemicals. Really new way to approach restance by just leaving it for grazing
    That’s kinda the way we think here too. The weeds are usually different between a hay/pasture field and crop land. By the time you rotate them like sheepwheat talked about you’ve help kick the resistance issue a lot further down the road.

    We still use iron here to incorporate manure, work in the corn leftovers, and break rough pasture and such.

    Reliance on one single method of weed control isn’t going to end well.


    Good topic tweety Reply With Quote
    LEP
    Sep 25, 2020 | 18:33 19 Hey Tweety what do you do to deal with weed resistance? Reply With Quote
  • 1 Like


  • Partners's Avatar Sep 25, 2020 | 18:42 20 Roundup resistance is because of the .33 rate on canola.
    Tickled the weeds and pissed them off.
    Up the rate and kill the buggers.
    No issues here.
    Switch from group 1 to 2. Reply With Quote
    Sep 25, 2020 | 19:22 21
    Quote Originally Posted by LEP View Post
    Hey Tweety what do you do to deal with weed resistance?
    Sell the grower multiple modes of action chemicles mixed into a neat expensive ****tail. Reply With Quote
  • 1 Like

    LEP

  • Sep 25, 2020 | 19:25 22 A real piss off with resistance issues is when you inherit someone else's. Be it by wind, water, wildlife, machinery, seed(certified---of course). You can only be diligent to a certain extent. Reply With Quote
  • 1 Like


  • Sep 25, 2020 | 19:32 23
    Quote Originally Posted by LEP View Post
    Hey Tweety what do you do to deal with weed resistance?
    He admitted in another thread this week that he wasn’t even a farmer, not sure why he is even here. Reply With Quote
    LEP
    Sep 25, 2020 | 21:20 24
    Quote Originally Posted by Taiga View Post
    He admitted in another thread this week that he wasn’t even a farmer, not sure why he is even here.
    Exactly. I think he/she is just trying to stir shit more than anything. There are a few (tweety, chucks, dml, bin, forage and agstar ) that dont deserve a response on most threads they start. Don't feed the trolls.

    My apologies if I missed anyone. Reply With Quote
    Sep 26, 2020 | 00:01 25
    Quote Originally Posted by Partners View Post
    Roundup resistance is because of the .33 rate on canola.
    Tickled the weeds and pissed them off.
    Up the rate and kill the buggers.
    No issues here.
    Switch from group 1 to 2.
    Group 1 2 must be mode of action m similar to our a b c d Reply With Quote
  • 1 Like


  • Sep 26, 2020 | 00:04 26
    Quote Originally Posted by tweety View Post
    Often puzzled why Agriville rarely talks about agriculture, so, what ya gonna do about herbicide resistance?

    Hope it just goes away? Expecting someone else to solve the problem? Can policy help? Regulatory?

    Some of the off topic stuff could maybe be comingled with organic farming forum, those that want to go there will.

    But crikeys im guilty i put darn sheep and wool stuff in commodity section rather than its proper place. Reply With Quote
    Sep 26, 2020 | 04:50 27
    Quote Originally Posted by malleefarmer View Post
    Some of the off topic stuff could maybe be comingled with organic farming forum, those that want to go there will.

    But crikeys im guilty i put darn sheep and wool stuff in commodity section rather than its proper place.
    Mallee... keep up the good posts... we do appreciate your 'down under' perspective... it is refreshing and you are a wise and welcome poster here!!! Thanks for choosing to spend your time with us!!! Cheers! Reply With Quote

  • Sep 26, 2020 | 07:32 28
    Quote Originally Posted by LEP View Post
    Hey Tweety what do you do to deal with weed resistance?
    I am involved in policy, what do you need?

    Currently 69% of wild oats has at least one mode of resistance. Take the time to share your experience with these guys https://saskwheat.ca/news-articles/w...stance-surevey

    Remember, this is a farmer problem, everyone else in the Ag sector will only bring expensive solutions (pardon the pun) to this farming problem.

    I do find it interesting many think the answer to a chemical problem is a chemical solution. Reply With Quote
    Sep 26, 2020 | 07:37 29 One possible solution - but oh the energy. https://www.producer.com/2019/07/mac...ds-with-steam/ Reply With Quote
    Sep 26, 2020 | 07:40 30 Tweety. If you would have seen what I saw the two past springs I doubt you would think tillage is a real good option.

    Forages would be better than tillage.

    Or only targeted pin point tillage.

    But wide scale recreational tillage is dynamite under some circumstances in some areas.

    I've even seen wild oats worse in tilled areas than untilled, you could see the line difference. Buried every wild oat that was laying on the surface then he had a carpet of it.

    Tillage might be part of the solution but it is no replacement for an integrated program in my opinion.....not here anyway.
    Last edited by farmaholic; Sep 26, 2020 at 07:48.
    Reply With Quote
  • 1 Like

    LEP