We certainly love quick fixes. We like things that take care of themselves. Unfortunately, in the landscaping and agricultural world that can include introducing non-native species into the environment without restraint or consideration of the consequences. Luckily, many species cannot survive without human care. But a few species can thrive without our care, and without natural predators; they become exotic, invasive, destructive species out of their ecological context.
I give you the Bush Honeysuckle (Lonicera maackii). Bush Honeysuckle is ALL OVER urban St. Louis, often as a planted privacy screen, or for erosion control. I suppose people like the smell of their flowers, though I’m fairly certain I’m allergic to invasives. Unfortunately, Honeysuckle profusely produces berries that propagate everywhere (the forest, your yard, your neighbors yard). They can even tolerant enough to shade out native trees and plants in forest understories. They are allelopathic, too, meaning they produce chemicals that inhibit growth of other plants in their vicinity.
The red berries they produce can feed birds. Unfortunately, the berries are not as nutritious as that of many native berry producers. In the end, birds get junky bird food and Honeysuckle seeds get a free ride.
Many people battle honeysuckle, but removal can be difficult. You must generally remove the entire plant and root system or cut the plant back to the stump, immediately paint it with glyphosate, and pray it doesn’t resprout. I’ve found the removal of Honeysuckle to be very gratifying. Something is therapeutic about stopping these evildoers with shovels, saws, and a little stump killer. If it’s in your yard, just remember to replace it with something native to increase biodiversity, bird food, habitat, AND to help keep honeysuckle from returning.