glyphosate on RR canola,,,how many grams?

[boarderbloke]

From the sounds of that link tweety, they're coming out with more resistant varieties in the future. That's for the info, nobody needs spray damage on a good crop.

[vvalk]

rR2 would be out already if it wasn't for China. It's just sitting on a shelf. As for spraying heavy rates on canola tweety is right. There is for sure yields loss. In no way would you see 5 bus yield lost even if you left a test strip. If your spraying even low rates at bolting well you someone who won't even listen to what other people have to say. It would have to be an emergency. As for getting your foxtail try mixing in high rate assure. Works well with glysophate. Saw Bayer was saying 40 acre centurion was registered to control Rosario with liberty

[vvalk]

Foxtail not Rosario or whatever that word is

[freewheat]

Tweety, you are correct on your numbers. I made a clerical error in my thinking.

Vvalk. Rosario! lol! I was like WTH is Rosario? Was getting worried that there was a new weed on the block that everyone knew of but me. lol. Humor keeps me alive. Thanks for the laugh, accident or not.

[tweety]

Glyphosate kills plants by blocking the EPSPS enzyme. Couple ways by which crops can be modified to be glyphosate-tolerant:

One strategy is to incorporate a soil bacterium gene that produces a glyphosate-tolerant form of EPSPS. This way is like RR2 so it blocks the glyphosate from working. That is how they can use higher rates and for longer staging.

Another way is to incorporate a different soil bacterium gene that produces a glyphosate degrading enzyme. This is how canola is today. The glyphosate is metabolized out of the plant, slowly, and definitely takes a lot of energy to do so. The later you spray, the more you use, and the more buds, and more uptake, the harder it is to metabolize. Its been thought buds don't have the ability to metabolize very well, so they really get hit. Hence 6 leaf as top staging.

[sjc]

On foxtail barley in RR or Invigor canola I add Assure II. 50 acres a case. Its about $4/acre. I find it works better then simply bumping up the rate of glyphosate or Liberty. Its better then Centurion too on Foxtail barley.

[freewheat]

Just sprayed Assure II on my faba beans today. Haven't used it before. How is it on volunteer cereals and wild oats??? Did the basic 40 (36 or so acres) a case rate.

[sjc]

Its as good as any other group 1 on cereals and wild oats. For whatever reason though it is really good on foxtail barley. It will work well on the Faba's. My Bayer rep was out trying to convince me to use Centurion on the Foxtail Barley with the Liberty but I refused. With all that added moisture the past few years the foxtail was getting out of hand in the low drowned out spots. My input supplier told me to try Assure as a tank mix with glyphosate and it worked well for me. Dupont supports it even though its not on the label. Only bad part is it is a group 1.

[boarderbloke]

thanks sjc. I'll keep that in mind for next year.

[freewheat]

Good to know. I have rr canola this year, and some of it is that land that was too wet to seed a few years and the foxtail got away. Control into year two? Thanks for the tip.