We want to throw and mow in some plots that have a good bit of Johnson grass. What would you suggest to plant that may get ahead of it, or do we need to spray first?
I haven’t dealt with JG personally but here is what I would give a try……
If you could possibly get to it pretty soon then I would go ahead and nuke the field with some gly now. Give it 10 days or so to get a kill……then broadcast on a heavy crop of milo and buckwheat and mow. We’re going to assume that you will still have some JG present this summer so in a couple months or so (before any JG goes to seed) mow the field again. The milo will come right back and the buckwheat will reseed if its already bloomed. Just make sure the JG doesn't go to seed this summer.
Later this fall around September I would nuke the field again…….wait for it to kill….then broadcast cereal rye, crimson clover, and hairy vetch. The following spring I would repeat the same process but hopefully by then you will have reduced the JG down to levels where you can just spot spray instead of nuking the whole field.
Last edited by CNC; 05/14/1508:22 AM.
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