This is a USk bush cherry, not an “invasive”
The insects and animals recognize EXACTLY what the plant is and know EXACTLY what to do with it
They are very closely related to species that have existed here for millions of years and the species it is hybridized from have been grown in North america for hundreds of years with no ill effects and wildlife utilizing it
If we filled the northern prairies with these wildlife would rejoice
Theres so much wrong with this i honestly dont know how to tackle it.
I guess start by reading up on the importance of prarie ecosystems.
https://www.dnr.state.mn.us/prairie/why-important/benefits-prairie.html
Why Every Prairie Really is Unique – and Why it Matters. | The Prairie Ecologist s
https://www.prairiehaven.com/?page_id=23309
Then move on to insect specificty.
And then compare native prunus with nonnative prunus
https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.70274
Im not saying dont grow fruit for food. I love growing fruit, but destroying native land to help wildlife is foolish.
I know.
If it spread like purple loosestrife in a NE US swamp that would be one thing. They literally just form patches like an American plum, a prairie native. We don’t worry about American plums taking over everything.
The Evans cherry (a pure sour cherry) suckered in a patch happily on the northern Canadian prairie for a hundred years before being rediscovered, it didn’t spread uncontrollably or do anything ecologically other than an American plum patch would have, except it was far more productive
If you’re imagining an entire prairie taken over with European buckthorn that’s not how they behaved. USk has done like forty years of growing them in prairies…I think they’d know if they were some crazy menace
So yeah it’s just brush that produces like 100x the calories of a native prunus.
I can walk into any of the prairie preserves by my house that I frequent and rip an invasive out of the ground and replace it with a carmine jewel and that would be a net benefit for the ecosystem. Would it be better than planting the absolute highest possible impact native after doing an extensive survey of the surrounding square mile and determining what Helianthus would be best to plant? Still maybe depending on the food availability at the time of ripening
im wondering if it would spread slowly like chokecherry does around here. Not sure if pits in carmine jewel are small enough for birds to swallow and pass or not. We end up with chokecherry along fencelines around here quite a bit from bird bathroom breaks.
I guarantee USK has looked into it
It also has to do with germination and how they deal with competition and stratification and a million other factors
It’s possible you might get some germination from some events but they would’ve noticed if it was 10% of what buckthorn does
You might also have deer yum yum on them and spread them too. Ducks/geese? Squirrel might do their thing too.
Big difference between removing and invasice and planting in a native prarie. If thats whats going on sure. But it was described as a native prarie.
And i mean real nonnative invasives not like goldenrod which is just aggressive
Canada is way more paranoid than any state in the U.S when it comes to moving plants around. if they even thought there was a chance these cherries would become invasive, they wouldnt have been allowed to sell them. over 75% of their genes come from canadian sour cherries that have been growing there for a least a century. chokecherries are native there so sour cherries present no negative attributes. only positive ones. i hope the birds spread them in the wild here. ive been saving all my cherry pits and throwing handfuls out in ditches all out in the fields and back roads going on 5 yrs now. some are bound to take. 
