By the way, that was BeanWife who made that reply. She's an Entomologist in the Biological Control Division of the Colorado Department of Ag.
You would probably have better luck with a chemical control program to start with. It would work better if you sprayed before you pull them, assuming they are growing. Since you probably don't have a restricted use chemical license you'll have to forget using tordon+banvel and go with banvel (dicamba) alone. 2,4-D with diesel fuel might help burn the plant down but it won't be the chemical of choice especially if you are trying to replant and establish under dryland conditions. You will need a lot of help from Ma nature to get a good stand in dryland depending on how much moisture you recieve annually. Drill it, don't broadcast the seed.
Beanman