Another import that seemed like a good idea at the time. Like house sparrows. :(
I can’t speak for anywhere else, but here in MI it’s Autumn Olive.
Promo ed for landscaping to “feed the birds” it was pushed by both state and local govts.
They even handed out packets of seed with hunting licenses and asked hunters to scatter the seeds where they hunted.
Well, birdies do what birdies “doo”. Now they’re EVERYWHERE! From roadsides to fields, to yards and edges of wetlands! And for some of us we’re so allergic to its pollen that we have to retreat to the AC for about 2 weeks every spring.
In my career as botanist, early on I did some work for USDA Conservation Services and “graduated” to working for USDA Forest Service.
I found that the Forest had declared the Olive a noxious weed and were trying to eliminate, it while the Conservation Services division was still propagating, promulgating and peddling the stuff!
I went down ask asked WHY they were still selling these noxious weeds and was told, “But we still have all these pounds of SEEDS”!
That’s govt for ya.