Imox residual

[SD51555]

If a guy sprays Imox in late May, can he still expect winter cereals to grow planted mid august without suffering any loss to residual herbicide? Thinking the 2 oz/ac rate to try to save my chicory.

 

[SD51555]

And is there a non-legume annual you can plant right after Imox to use up summer nitrogen from the clovers?

 

[FarmerDan]

The strict and literal read of any label for any of the herbicides in the family of imidazolinones would indicate the answer to your first question is no and to the second, none. But if you can live on the edges you could probably do fall planted wheat after a spring application of Imox. The published half-life of the herbicide ranges from 14 days to nearly 200. It depends on soil caracteristics, pH, soil organic matter, seasonal rainfall. Is wheat doable? I would have a hard time betting the farm in production ag, but for habitat? Depends on your risk tolerance. To your second question, when you say “right after” I take it to mean days after the herbicide application and I would say I don’t know. It seems doubtful.

 

[SD51555]

The strict and literal read of any label for any of the herbicides in the family of imidazolinones would indicate the answer to your first question is no and to the second, none. But if you can live on the edges you could probably do fall planted wheat after a spring application of Imox. The published half-life of the herbicide ranges from 14 days to nearly 200. It depends on soil caracteristics, pH, soil organic matter, seasonal rainfall. Is wheat doable? I would have a hard time betting the farm in production ag, but for habitat? Depends on your risk tolerance. To your second question, when you say “right after” I take it to mean days after the herbicide application and I would say I don’t know. It seems doubtful.

I was afraid of that. I'll probably still go for it, just knowing I may not get a winter cereal crop. I can always come back and try forage barley in the following spring at at heavy rate. And if that still doesn't work, there's always japanese millet in June.

If it doesn't work, I'm out maybe $35 in winter trit. I'm not gonna chance not-succeeding for $35. That seed is getting planted.

 

[woodyjeremiah]

I’ve sprayed imox the last 2 years in the spring and planted cereals just fine in the fall. I’ve also planted Milo/ sorghum a few weeks to a month after with no issues either. Usually aim for 3-4oz/ acre but I’m using a backpack sprayer so not the most accurate.

I have nuked some on accident not getting the ratio right on small plots and nothing grew all summer but my fall plot worked out just fine. This is South Alabama spraying around March-April and planting in October though.


Sent from my iPhone using Tapatalk

 

[SD51555]

That would be super if sorghum would grow right after it.

 

[Derek Reese 29]

How long would you have to wait after a spring application of Imox to overseed with clover and chicory? I have a “getting too weedy” field that still has a decent clover base that I want to seed into with additional clover varieties. Also, could you plant brassicas into the same field in say August if you sprayed in mid April? Or would a more concentrated mowing program be better?

 

[Hoytvectrix]

How long would you have to wait after a spring application of Imox to overseed with clover and chicory? I have a “getting too weedy” field that still has a decent clover base that I want to seed into with additional clover varieties. Also, could you plant brassicas into the same field in say August if you sprayed in mid April? Or would a more concentrated mowing program be better?

Thread 'Imox Question'

Jun 6, 2020

Ordered Imox from Keystone for clover/chicory plot. Mixing rate is 4-6 ounces on clover and 4 ounces on chicory. I'm not sure if the chicory rate is for a pure or predominate stand of chicory which my plot is not. Should I spray at the chicory rate or the clover rate? I am seeing guys dissapointed with Imox so I would like to hear some success stories. I'm aware of all the variables involved, i.e. grass/weed height, weather etc. that may have been a factor on some of these plots that failed. I mowed on a few days ago and rain is in the forecast. My plan is to get my plot sprayed on Monday...

• birdog
• Replies: 23
• Forum: Foodplots

Thread 'Before I use IMOX: Rotational Restrictions?'

May 28, 2024

I've followed the talk about Imox on the web and have heard great reviews about it's ability to clean up a plot. I've read the label top to bottom, and there is no safe to spray list, and no rotational restriction for switching back to other crops. I did a google to find the trade name of IMO (Raptor), and came across a rotational restriction chart put out by UW Madison. I've heard it's safe on clover and chicory, but will it really knock out so many other options for two growing seasons? I'm also going to lose lots of other species to the application like buttercup, thistle, and...

• SD51555
• Replies: 27
• Forum: Foodplots

There is another thread to help answer some of your questions.

 

[omicron1792]

Imox has a pretty short residual. I’ve planted grains in fall after spring spraying of imox or pursuit and they grew great.

I actually posted my fall fields today @SD51555. All of those were sprayed with 4oz of imazethapyr in late May and the rye and clover are growing like gangbusters. Imazethapyr has about double the half life of imox too.

 

[omicron1792]

How long would you have to wait after a spring application of Imox to overseed with clover and chicory? I have a “getting too weedy” field that still has a decent clover base that I want to seed into with additional clover varieties. Also, could you plant brassicas into the same field in say August if you sprayed in mid April? Or would a more concentrated mowing program be better?

Really wouldn’t have to wait long at all. I use imox to clean up clover and chicory. I also use as preplant for summer legumes either before or right after planting.

Brassicas will probably be most sensitive, but I bet they would grow if planted 3-4 months after spraying.

Sorghum grows right through Sprayings. I have volunteer sorghum come up heavy after spraying with imi herbicides. That said if I’m planting sorghum specifically use igrowth imi resistant sorghum which you can actually use imox with to keep clean. Expensive but sorghum has low planting rates so will last a while or cover lots of acreage.

 

[Wind Gypsy]

Imox has a pretty short residual. I’ve planted grains in fall after spring spraying of imox or pursuit and they grew great.

I actually posted my fall fields today @SD51555. All of those were sprayed with 4oz of imazethapyr in late May and the rye and clover are growing like gangbusters. Imazethapyr has about double the half life of imox too.View attachment 86211

Up near @SD51555 spring plantings are May-June and "Fall" plantings are July-early Sept.

 

[omicron1792]

Up near @SD51555 spring plantings are May-June and "Fall" plantings are July-early Sept.

View attachment 86238

Right. I can see that problem. I would stay away from imazethapyr if you wanted a fall grain planting. But I think you’d be fine with Imox a month or two later. Except maybe for brassicas, but my guess is they would do fine too.

 

[Wind Gypsy]

Right. I can see that problem. I would stay away from imazethapyr if you wanted a fall grain planting. But I think you’d be fine with Imox a month or two later. Except maybe for brassicas, but my guess is they would do fine too.

I missed the part where you said imazethapyr rather than imox. My bad.

 

[omicron1792]

I missed the part where you said imazethapyr rather than imox. My bad.

They are pretty interchangeable in their action. One just lasts about twice as long.