2,4d question

[Potter co notill]

I’m planting brassicas and need to use 2,4d with roundup in burn down due to gly resistant marstail. My question is how long after spaying do I need to wait to broadcast my brassica mix?

 

[S.T.Fanatic]

I’m planting brassicas and need to use 2,4d with roundup in burn down due to gly resistant marstail. My question is how long after spaying do I need to wait to broadcast my brassica mix?

Has the marstail gone to seed? Chemicals will not kill seed that hasn't germinated. Your brassica will germinate in less than a week and should out compete any of the other broad leafed plants that germinate.

You may have prior experience with this so take it for what its worth. Id just seed, mow, and spray gly.

 

[Mortenson]

I’m planting brassicas and need to use 2,4d with roundup in burn down due to gly resistant marstail. My question is how long after spaying do I need to wait to broadcast my brassica mix?

I'd wait at least a week. What rates are you using of both 24d and Rup? I'm going to spray my plots today too. Think I'm going to mix both of those.

 

[Potter co notill]

Has the marstail gone to seed? Chemicals will not kill seed that hasn't germinated. Your brassica will germinate in less than a week and should out compete any of the other broad leafed plants that germinate.

You may have prior experience with this so take it for what its worth. Id just seed, mow, and spray g

Has the marstail gone to seed? Chemicals will not kill seed that hasn't germinated. Your brassica will germinate in less than a week and should out compete any of the other broad leafed plants that germinate.

You may have prior experience with this so take it for what its worth. Id just seed, mow, and spray gly.

no the marstial hasn’t gone to seed yet

 

[Potter co notill]

I'd wait at least a week. What rates are you using of both 24d and Rup? I'm going to spray my plots today too. Think I'm going to mix both of those.

1 pint 24d
2qts Rup

 

[buckdeer1]

Are there other crops around? 24D will drift and kill non 24D cotton or soybeans. I use interline which is generic liberty herbicide for marestail and pig weed.Don't have to worry about drift

 

[FarmerDan]

2,4-d amine or ester? Half life of ester is 7 - 10 days. Amine could be double that. Soil moisture and percent of organic material in the soil impact as well. Wait at least two weeks IMO.

 

[DavidHunter2001]

Are there other crops around? 24D will drift and kill non 24D cotton or soybeans. I use interline which is generic liberty herbicide for marestail and pig weed.Don't have to worry about drift

Is Liberty safe on roundup ready beans?

 

[ruskbucks]

Is Liberty safe on roundup ready beans?

No it's not. The farmers use it to get rid of their volunteer rr corn in their bean fields.

 

[BobinCt]

I’d wait at least 2 weeks. Like Dan said, I think rainfall/soil moisture is a part of it, too. You rather be safe than sorry.

 

[Potter co notill]

Are there other crops around? 24D will drift and kill non 24D cotton or soybeans. I use interline which is generic liberty herbicide for marestail and pig weed.Don't have to worry about drift

Just liberty beans next to it, so yes they are safe

 

[yoderjac]

I’m planting brassicas and need to use 2,4d with roundup in burn down due to gly resistant marstail. My question is how long after spaying do I need to wait to broadcast my brassica mix?

As Farmer Dan says, it may depend on the formulation. The label has wait time recommendations for soybeans and maybe a couple other crops, but I'd reconsider your approach.

I've had big issues with marestail and have learned a lot. First, it laughs at glyphosate. 24D only provides partial control and is pretty ineffective unless the plants are young. So, it is best used in the spring.

I had been planting RR beans with a light mix of corn for summer when we got the marestail infestation from a controlled burn in recently thinned pines nearby. I started by mowing in the fall after it flowered but before it went to seed. If you mow too early, it will simply regrow and flower again. It can grow from both seed and from the root system of last years plants. Mowing at the right time really helps with the seed issue, unless, like me, you have plants you can't mow growing in the nearby pines that are producing seed.

I then waited the amount of time recommended on the label for soybeans and planted a thick stand of buckwheat. Buckwheat likes warm soil and can be planted quite late, so the wait time is not an issue. Using gly on RR crops makes things worse as it kills good weeds favoring the marestail that is naturally resistant. The buckwheat comes up quickly and acts as a smother crop competing well with the marestail.

I found that using a generic version of liberty was quite effective at killing marestail and required no wait period. There is a thread on here where Bill, who plants using liberty-link, said he had no wait period for non-liberty link crops, so I tried it and it worked well. I now use liberty instead of gly for burn down.

I planted my normal fall mix which is WR/CC/PTT. Marestail was not an issue in the fall.

I have become weed tolerant over the years as many weeds are as good or better deer food than the crops we plant, but some weeds like marestail are problematic and need to be addressed. I now have a healthy mix of weeds in my summer plots. I have not gone back to soybeans. Instead, I added sunn hemp to the buckwheat for my summer stress period. It seems to be working well. I still have a little marestail, but it is now a minor weed in my fields not that I stopped using gly.

Thanks,

Jack

 

[Potter co notill]

As Farmer Dan says, it may depend on the formulation. The label has wait time recommendations for soybeans and maybe a couple other crops, but I'd reconsider your approach.

I've had big issues with marestail and have learned a lot. First, it laughs at glyphosate. 24D only provides partial control and is pretty ineffective unless the plants are young. So, it is best used in the spring.

I had been planting RR beans with a light mix of corn for summer when we got the marestail infestation from a controlled burn in recently thinned pines nearby. I started by mowing in the fall after it flowered but before it went to seed. If you mow too early, it will simply regrow and flower again. It can grow from both seed and from the root system of last years plants. Mowing at the right time really helps with the seed issue, unless, like me, you have plants you can't mow growing in the nearby pines that are producing seed.

I then waited the amount of time recommended on the label for soybeans and planted a thick stand of buckwheat. Buckwheat likes warm soil and can be planted quite late, so the wait time is not an issue. Using gly on RR crops makes things worse as it kills good weeds favoring the marestail that is naturally resistant. The buckwheat comes up quickly and acts as a smother crop competing well with the marestail.

I found that using a generic version of liberty was quite effective at killing marestail and required no wait period. There is a thread on here where Bill, who plants using liberty-link, said he had no wait period for non-liberty link crops, so I tried it and it worked well. I now use liberty instead of gly for burn down.

I planted my normal fall mix which is WR/CC/PTT. Marestail was not an issue in the fall.

I have become weed tolerant over the years as many weeds are as good or better deer food than the crops we plant, but some weeds like marestail are problematic and need to be addressed. I now have a healthy mix of weeds in my summer plots. I have not gone back to soybeans. Instead, I added sunn hemp to the buckwheat for my summer stress period. It seems to be working well. I still have a little marestail, but it is now a minor weed in my fields not that I stopped using gly.

Thanks,

Jack

Well I spayed 24d this spring before I played my beans and took out the Marstail that was emerged. Then 4 weeks later I sprayed my liberty link beans with 24d and roundup and my beans are clean now. This plot is next to my beans that has gotten out of control due to just using roundup in the past. I don’t like any weeds I don’t care if they are good for deer or not, just not what I want. I want attractant for deer when I want it, that’s why I fence off my beans to keep the deer out and works great. There is plenty of natural vegetation for deer in spring/summer I feel deer need more in winter to carrythem over. I do have clover plots also. I don’t have Marstail problems in my other plots I plant brassicas or soybeans just this one.

 

[Potter co notill]

And we just got 1” of rain since spraying