Glyphosate market drying up

[Guest]

We’ve opted to not seed any RR crops and use it exclusively for weeds in the hope that resistance weeds will take longer to develop, only time will tell. So only spraying glyphosate once for preburn and possibly a 2nd time for pre harvest or post harvest depending on weeds. Not saying no to genetically modified crops, just RR crops.

Same here

[furrowtickler]

We’ve opted to not seed any RR crops and use it exclusively for weeds in the hope that resistance weeds will take longer to develop, only time will tell. So only spraying glyphosate once for preburn and possibly a 2nd time for pre harvest or post harvest depending on weeds. Not saying no to genetically modified crops, just RR crops.

Been a trend for several years now across western Canada .

[Guest]

If your stats are accurate, global pesticide use (herbicide, insecticide, fungicide, etc) has gone up 25% since the year 2000. At the same time total food production has outpaced that figure by 2X. So less pesticide use per kg of food produced.

Quite the accomplishment

Check your math. More like over 60%. So more pesticides per kilo of food produced and you had 5 likes? I hope you don't calibrate your sprayer like that.

[blackpowder]

Switching to all RR canola here.
Don't want to. Have to. Concerned about yield here firstly.
Multi chem resistant wild oats becoming serious issue.
Upside, I'll be using less active herbicide by far.

[Guest]

Switching to all RR canola here.
Don't want to. Have to. Concerned about yield here firstly.
Multi chem resistant wild oats becoming serious issue.
Upside, I'll be using less active herbicide by far.

4years ago, glyphosate resistant wild oats was discovered in Australia. Coming soon to a farm near you.
By default when you spray, you select the survivors.
More recently in Western Australia a population of ryegrass weeds was found to be resistant to both glyphosate and paraquat in the same plant.

[blackpowder]

Does the chemistry cause resistance or the usage??
Over the years we've finally learned our techniques were causing misses.
You're suggesting we shouldn't spray at all. Try farming for real once.

[agstar77]

If you want a real issue, check microplastics and rubber crumbs in the food chain. If all these organic warriors were really interested in food safety there much greater risks than glyphs and gmo s. I did not even mention lead or other heavy metals.

[LEP]

About 25 years ago I took on some heavy land that had an almost terminal problem with wild oats. We were in a 4 year rotation with cereals every 2 years. In the cereal crop I would lay down avadex which did a heck of a job but still had many misses and then got my money back from Monsanto for misses. Then I would spray post emergent in the same crop.

This treatment gave amazing results. In the first few years when you walked in the fields it was like walking on shredded wheat, the dead wild oats crunched underfoot. Add to the mix some liberty/centurion mixes and edge/assure on pulses and direct seeding and I have virtually no wild oat pressure at all. I only spray grassy weeds in canola and pulses to control volunteer cereals. I think I could skip spraying some years if I chose, without too big of a mess.

Quite an about face.

[blackpowder]

I skipped a half a field once back in about 98. 2020 had perfect late flush conditions and you could see the line clearly.
I have multiple resistance issues. Some fields show resistance to four different chems. We test for individual products NOT just groups. Costs over $600/sample.
Here's my theory. I dunno.

50 years of 1 pass and forget about it. Treating the WO chem expense as from Satan!
Some years cut rates. Remember some advocating half or less?? Remember spot spraying?? Remember Sprayair??
Decades of dry weather masking escapes. When the seed bank big enough to notice, it's too late.

Poor products, applied poorly. Remember Carbyne??
Ignoring small patches.
Testing just recently available.
Few test. POOR well water. Just being addressed.
We now hire someone to monitor fields weekly for issues, and we address them.
There's more. But husbandry clearly the issue over chemistry. Of course we'll get RR resistance if we repeat our past mistakes.

[AlbertaFarmer5]

I have also heard the theory that high rates and effective application will make resistance issues worse and faster. Since the only escapes are the most resistant plants. And they are free to propagate without competition. Whereas at low rates poor application, the escapes will be competing with each other.

[TASFarms]

Could chemical resistance be more about mineral imbalances then the actual chemicals used. The greater the imbalance the greater the chemical resistance

[blackpowder]

I have also heard the theory that high rates and effective application will make resistance issues worse and faster. Since the only escapes are the most resistant plants. And they are free to propagate without competition. Whereas at low rates poor application, the escapes will be competing with each other.

That's why we're walking and respraying with another chem if necessary. And switching to RR can.
Have some ground would get can every second year for a bit if landlord would allow.
Only a few fields, yet.

[blackpowder]

Could chemical resistance be more about mineral imbalances then the actual chemicals used. The greater the imbalance the greater the chemical resistance

Our water a big factor I've learned.
AMS or similar in every tank now.

[foragefarmer]

I have also heard the theory that high rates and effective application will make resistance issues worse and faster. Since the only escapes are the most resistant plants. And they are free to propagate without competition. Whereas at low rates poor application, the escapes will be competing with each other.

Since you posted it and thought it was worth repeating , explain in a little more detail what benefit this would have for the competing crop or the shape of the field in a couple of years.

Seriously.

[AlbertaFarmer5]

Since you posted it and thought it was worth repeating , explain in a little more detail what benefit this would have for the competing crop or the shape of the field in a couple of years.

Seriously.

This was something I read on Newagtalk a few years ago. You are welcome to look it up and take your feud up with the original author.
At higher rates, you would kill everything that is not resistant, and leave only the resistant weeds behind to procreate.
The random mutation which causes a naturally resistant weed might only be one in 100 million in nature. But if you do an effective enough job of killing all of the non-resistant weeds, then the only weeds left to spread their seeds are the resistant.

Or do you need an entire lesson in how evolution and survival of the fittest works?