I haven't seen as many monarchs either and very few fritillaries. Swallowtails seem to be doing okay. I plan to save a large patch of milkweed at the end of one of my food plots. Ground is very light and corn didn't do well. I have seen a lot of toads at all ages.
I walked my food plot corn today. I don't use RR and I only cultivate. There's crab grass and lambs quarter and grasshoppers and other insects. Easy to see why we don't have pheasants. Too much herbicide and insecticide. Not an indictment just observation.