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Pea herbicide plan

13K views 21 replies 11 participants last post by  kenmb  
#1 ·
Looking for alternatives for yellow peas. Been using Odyssey and now Viper in crop for probably 15 years. Maybe time to consider alternatives if not for the simple fact of doing what you always do may be correct, but you don't know if you don't try alternatives. The peas are extremely clean though, it not that the plan isn't working.

Also been using Authority preseed for about 6 years now. Don't have kochia except some places where soil is really bad it will be about 18" tall so not a problem for the combine. Thing is it does get expensive at about $13/ac for Authority and $20 for Viper.

Thinking of changing things up. Probably switch to a post seed burnoff plan and thus drop Authority and perhaps use Heat Complete. Express SG is an option but have numerous sandy, gravel and eroded knoll areas that trigger warning for Express usage.

Right now thinking about in-crop, the above mentioned for developing a larger plan. Have some areas where perennial sow thistle is dominant. Viper worked ok on sow thistle last year actually. I could use MCPB/Mcpa and spray these areas then cover the main field with something else. Being as dry as it is, doing the entire field with B/A may be hard on the peas to mix it at the rate needed for targeting thistle specifically. So perhaps a tank mix of something else for the bulk of the acres.

So, if a guy was to get away from an expensive herbicide program, what would be alternatives. I do preharvest with glyphosate as a tool needed to control grass.
 
Discussion starter · #7 ·
Ya, my peas look better a day after Viper too. The added N with 10gpa and I usually have rainwater in the storage tanks off the shop roofs as a carrier. Odyssey is out because I put flax on my pea stubble so the carry over is a problem. I haven't checked this year's pricing yet but Viper was about that last year. I don't use N is bulk so left buying the little jugs for an extra $2 or $3.
I got my weed ID screwed up though. It's annual sow thistle and prickly lettuce I am dealing with so will likely go with Viper again to keep the flax option open for next year.

I am concerned with lack of rain and activity of the Edge I have down for mustard and Authority on peas. Won't know for sure till we get a good rain and there is a flush of weeds to see how it plays out. That's a good point on organic matter and Edge Brad. I see poorer control where there is heavy trash.

If I get into a better pre emergent weed control plan maybe I can avoid the expensive in crop options. I have peas going on Mustard ground which usually isn't off till after a few good frosts so post harvest spray option is typically gone because no regrowth occurs after the combine cuts the weed tops off. My peas are pretty much weed free so have to see what I can do to save a few bucks and perhaps put less stress on the peas if I can avoid an in crop broadleaf herbicide. Though, as noted, Viper doesn't seem to stress them. Maybe I just resign to keep using Viper till something changes.
 
Discussion starter · #12 ·
Patch spraying with Authority is something that never occurred to me till a week ago when I first started thinking on how to reduce the use of expensive options. I know pretty well where all the problem areas are so it is not that difficult to mix a tank to start the field and target those areas then leave the Authority out of the next tanks and do the bulk of the field.

Peas with Viper are the only group 2 i use. I am getting loaded up on group 4 with the Viper, Buctril M on Flax and Infinity FX on barley to control the volunteer flax. Flax is a small component of the rotation at 10% of acres and may up it to 20% so the repeated group 4 is not used on many acres but it is interesting how I feel like I am being funneled into certain choices. With 100's of chemical options I end up looking at my possibilities and see very few based on all the factors that come together.

So expanding the discussion into rotation which is necessary to look at the big picture, growing flax becomes an important piece of the initial post on options for peas.
 
Discussion starter · #22 · (Edited)
Dad isn't sure what he used prior to Odyssey, thinks was Pursuit on occasion, probably some MCPA. Things have changed alot over the years with better chemical program, higher seeding rates and preharvest glyphosate to make combining so much easier than years ago. We used to swath peas back then too.

As for rod weeders, have three of them. I was a little guy when I remember dad putting some cultivator shanks on the front of the Anderson. Thing to remember is a rod dragged horizontally across the ground does not penetrate until you loosen the soil first. Seed with discers, get a flush of weeds (usually wild oats) then rod weed just before the crop comes up or even after it has emerged. And if you get a good heavy rain between seeding and rod weeding you are remembering why you put cultivator shanks on.