Milkweed is thick on my place. I find milkweed seeds to be a much better windicator than powders. Some days I see my milkweed still floating along fifty yards away
I love using milkweed! In the mountains I’ll occasionally have milk week come by me the opposite direction 20 minutes after I drop it, that’s when you know deer sightings are unlikely!
I store mine in an old used prescription pill container. Just big enough to dig my fingers in and pull one out and small enough to fit in my hunting coat. Also... water tight. Refill as needed.
I remember taking a break while spraying, and sitting down in some shade only watch a thistle seed drift over from the neighbors, past my face, and continued down yonder. I crossed the fence at that point and gave them a free spray job.