[daeken]

It's significantly less direct because Roundup has no effect on the Monarch butterflies. The issue is the way it's being used by farmers. If it were not being used to eliminate milkweed, there would be no effect whatsoever on the butterfly populations. We would have the same problem with absolutely any other herbicide.

[joshuapants]

Or if milkweed were replanted in other areas still within the Monarchs' path but not mixed in with the crops. Many towns have butterfly gardens, but something on a larger scale would work too.

[daeken]

I wonder what kind of scale you would need to make this work? I'd be curious to see numbers on it, and whether or not it's feasible; definitely a great option if so!

[ambler0]

In any case, it doesn't hurt to try and grow some milkweed in one's own yard, which many of us in my area do.