Depending on how you want to be set up, there are 2 ways you can go. Use a dry planter box treatment applied and mixed directly into the planter box, or with an applicator mounted on a tender. Or, use a liquid product mixed in with your seed treatment when your beans are treated, or as an overlay on the seed after your seed company has already treated. ABM has a great product for either scenario. GraphEx/GraphEx SA as a planter box, or Excalibre as a liquid treatment. Both use 3 different strains of bacteria to cope with different growing conditions, and a heavy bacterial load. Dry product is an 80/20 mix of graphite/talc as a carrier, which also satisfies the need for seed lubricant. Excalibre can be applied up to 120 days before planting.

Hth,
JDH