Valtera vs Authority 480

[helmsdale]

Looking for input as to experiences with the two chemicals. Have a half section that is going to be polluted with groups 2,4,9 resistant kochia that blew off a neighbors field, so looking for something that will give me some decent control in yellow peas.

Rate i'm seeing listed in the AB blue book for Valtera spring applied is 57g/ac, but they list a 85g/ac rate if fall applied. Guys getting decent control at 57g/ac in the spring? Spraying before seeding and including in burnoff mix? or burning off, then spraying just after seeding? Books says must use minimum tillage if applying before seeding. Does 3" spread boot on 9" spacing qualify?

Authority lists kochia as controlled at 89ml/ac. Is there decent control at this level? Should a guy bump it up to the 118ml rate, hoping to control buckwheat pigweed etc, and hope you dont have to do a pass of viper/odyssey?

Any input would be much appreciated.

[farmaholic]

We've used Authority, I think its pricey for what it does. But I do like the kochia control.

If you want, go to 40 acres per jug. The low rate is 43 acres per jug and the high rate is 32....that gets real pricey. Costs are about $14-$18/ac....depending what you have to pay for the stuff....shop around!

Sprayed on after seeding would probably provide the best control(uniform layer), probably prevent strip misses from the openers "furrowing" treated soil during seeding if applied preseeding.

You will need .25 to .33 of an inch of rain to activate it, it can lay there and wait because it doesn't photo-degrade, but won't control much either without the activating precip.

We will start using more pre-emerge herbicides because of herbicide group resistance, 1 & 2.
We bought a used heavy harrow with mounted Valmar. Time to start mixing things up a bit more.

Good luck this spring Helmsdale.

[helmsdale]

You will need .25 to .33 of an inch of rain to activate it, it can lay there and wait because it doesn't photo-degrade, but won't control much either without the activating precip.

We will start using more pre-emerge herbicides because of herbicide group resistance, 1 & 2.
We bought a used heavy harrow with mounted Valmar. Time to start mixing things up a bit more.

Good luck this spring Helmsdale.

.25-.33"... sometimes hard to come by, but if preburn is done, there shouldn't be anything growing if it doesn't rain...

Frost free from the surface to between 15" and 18". I've seeded with less frost free than that before... April 1 is a touch early though.

[farming101]

Had good results with Authority kochia control at low rate even on saline ground where not much else grew for the entire season. High rate controlled cleavers and buckwheat.
Year of application at high rate was fairly dry and was concerned about following with canola the next year. Did it any way and it yielding well. However I do think the Authority touched the canola a wee bit. Normal rains I wouldn't be concerned.
Never used Valtera. Looks a little better for carry over concerns

[Jay-mo]

I have used Authority for a few years on peas and soybeans.
If your weed pressure is relatively low at seeding, I would wait and put it on pre-emerge. Eliminates strips on your rows and gets you an extra week of residual activity in crop.
I've been happy with it. Last year I used it (40a./jug) on a field of soybeans that I knew has a few sour patches prone to kochia. Just a few smaller kochia plants survived in those bad areas.
I hear good things about Valterra as well. I think its very comparable to Authority.

[furrowtickler]

How would Heat Complete compare to Authority or Valtera ?

[helmsdale]

How would Heat Complete compare to Authority or Valtera ?

Never even knew it existed until now. Just looking it up. Definitely like the re-cropping restrictions, or lack thereof.

Has anyone really had any experience with valtera? Seems Authority has been around long enough to get some input on it, but anybody tried valtera?

[furrowtickler]

Never even knew it existed until now. Just looking it up. Definitely like the re-cropping restrictions, or lack thereof.

Has anyone really had any experience with valtera? Seems Authority has been around long enough to get some input on it, but anybody tried valtera?

Had Baltera and Authority side by side 2 years ago .
Very similar

[farmaholic]

Heat, Authority and Valtera are all group 14 with different active ingredients, they don't all cover the same crops and weeds, sometimes it might only be because the research hasn't been done but I don't know if I'd take the chance thinking you can substitute one for the other.

"Always read and follow label directions"

Watch the cropping restrictions with Authority, corn, sorghum and lentils can only be seeded 24 months after application.....then in drought conditions I believe these products can persist even longer.

DYODD.

[poorboy]

Tried Valterra 2 years ago. Had seeded peas and was looking for volunteer canola and annual sow thistle control. Sprayed it on after I seeded and got 3/4” rain on it 2 days later.

Was really disappointed. Volunteer canola grew within a week of spraying viper. Way too short a residual. That is dark brown soil with lots of clay.

In researching it appears that the higher the clay the shorter the residual time.

I have no kochia so no idea on the control.