Ia Gary; Waterhemp

super99 · Jul 13, 2016

Did you ever find anything to spray your beans with to kill roundup resistant waterhemp?? I've had them for a couple of years and this year they are thick!! Chris

fixerupper · Jul 13, 2016

If I can chime in, if the water hemp is over about three to five inches tall you will have a tough time killing it with anything except a hoe or spade or corn knife. Flexstar is what I used this year and it smoked the very small weeds except for about six acres where the preplant herbicide did not work well. It also dinged the beans pretty good. In those acres the water hemp was 8-10 inches tall by the time I sprayed the Flexstar. Some of the leaves were burned but the weeds survived. As I type this I am cooling down from digging weeds out with a spade in those six acres. Im becoming very concerned about the viability of our herbicides in the future. There is a reason why I see bean walking crews addverting in the farm magazines

IaGary · Jul 13, 2016

I went after it with cobra on that field after the 32 oz of glysophate failed.. The Cobra seems to have worked. Water hemp was only about 12" tall when I resprayed with the Cobra.

All other fields the glysophate seemed to take care of the water hemp. I went to a 48oz rate of glysophate when I saw what was happening with the first field I sprayed earlier with only 32 oz.

Gary

notjustair · Jul 13, 2016

My burndown was 24D, Roundup, Sharpen, and Prefix. I worry about resistance, so I plant Liberty beans but still use roundup burndown. I worry about Liberty's grass weakness. I have a field with button weed and the Liberty didn't touch it. It's rained now so I can't get back on it yet, but that field is going to have to get bombed.

These weeds are one step ahead of us sometimes.

brutus49DC · Jul 13, 2016

Cobra takes 12 plus bushels off of the yield, better start putting down some Sencor pre-emerge, Matador-dual/pursuit/sencor does a good job on just about everything.

IowaJohn · Jul 13, 2016

I've gone to Liberty Link beans. I use 2,4-d and authority preplant and liberty post then cleanup around the outside and bottoms of terraces with 2,4-d and roundup in a 2 1/2 gallon hand sprayer, got to be careful with the hand sprayer, I ding a few beans but there isn't any waterhemp or marestail left.

IaGary · Jul 14, 2016

There are test results where cobra increased yields as well.

Yes if you apply Cobra late in the season it will cause issues if the beans are flowering.

Cobra used like should be and no yeild drag results. Cobra helps control white mold if white mold is an issue.

By the way I did have pre emergant herbicides down but they did not hold in this field for some reason.

I have always used pre emerge herbicides on my beans.

This isn't my first redeo.

Gary

brutus49DC · Jul 14, 2016

Sorry to question you Mr. Perfect farmer.

IaGary · Jul 14, 2016

We don't always get the whole story here on the forum. So you responded not knowing.

That is okay.

I was just responding to you to let you know I thought I did everything right.

Replying on the forum we can't hear the tone of voice a person was using.

My tone of voice in my response to you was one of calm and collected not to be a smart a$$.

Ia Gary; Waterhemp

super99

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fixerupper

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IaGary

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notjustair

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brutus49DC

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IowaJohn

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IaGary

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brutus49DC

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IaGary

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