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Missouri | No yield drag on Liberty beans.
In 2015, it was terribly wet in MO. We intended to plant liberty beans at home, and cheaper roundup beans on a rented farm that was coming out of grass. We didn't figure we'd have as much of a resistant weed problem on that farm. We filled the planter up with liberty beans at home and planted the few acres of upland ground we had when it was dry enough. But we weren't planning on never having a chance to plant the bottom ground. We ended up taking PP on all of it. We couldn't take PP on the rented farm coming out of grass, so it had to be planted. We headed over there in late June with a planter that was still half full of liberty beans. We started at one end of the farm and planted them until we ran out. Then we left a couple feet so spray guy would know where we switched and then we planted the rest of the farm to roundup beans. Co-op wasn't real thrilled about having to wash out mid-field, but they did it (and they did an excellent job - they only killed a foot or two of beans along the dividing line). They used cobra with the roundup, and it turned them brown for a while, like cobra does. Everyone always says that won't set them back, but 2015 made me believe that it does. For about a week, the roundup beans looked stressed, and the liberty beans were dark green like they're supposed to be. That fall, when we combined them, the liberty beans yielded 33% better - and they were planted in the same field at the same time. The roundup beans were clean, just like the liberty beans. The only difference between the two was that the beans were planted late, it was a shortened growing season, and the cobra took a week of growing away from the roundup beans. The liberty beans grew that whole week. In a normal year, that one week might not matter as much, but it did in 2015.
We planted 100% liberty in 2016, and will again in 2017.
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Dicamba vs Liberty soybeans
