Pulled this out of the corn this morning.
We have very little of it. Nearby, where renters grow cotton doused in Roundup (Glysophate), they have a lot of it. Because it has mutated to be resistant to Roundup. So over there, it’s the only weed growing. They’ve resorted to everything from 2,$-D to Paraquat to pulling it up by hand.
In our fields, pigweed has to compete with everything else, and it is not very successful. We have more issues with dog fennel and sandspurs. Nothing a little hoe work and weed pulling can’t fix. Good morning exercise. We do not use any pesticides.
See also Andre Gallant, Modern Farmer, 18 July 2013, Pigweed in the Cotton: A ‘Superweed’ Invades Georgia.
-jsq