How about if you stop calling it a tall invasive weed, and instead try.... Easy to grow attractive nutrient accumulator.
Down here in our poor southern soils, anything that is easy to grow, and is easy to pull after producing lots of bulk organic matter.... Seems worth keeping.
What about bird activity? Caterpillars?
Also....
These tall annuals.... Work wonders at shading out the noxious species....
I like chenopodium for the same thing....
Nice thick patch to shade everything else out.... Pull for compost.... when ready to plant something else.... And... If left to go to seed..... Winter bird feeders!
OK, can't find information on birds, but apparently the checkered fritillaries use the plant as a host plant:
http://www.illinoiswildflowers...
Apparently the seeds are edible... Especially when green:
http://www.eattheweeds.com/vel...
When reading about the poor corn farmers having trouble with this plant...
Maybe ask yourself whether you intend to get a tractor and start row cropping the place...
My soil is soooo terrible that enlisting help from the weeds makes a lot of sense.
