I don't like invasive species of plants particularly ones that tend to take over, I have little time for them unless they are particularly useful, like bamboo, but generally they are anathema to me.
One that I really dislike is Himalayan Balsam, it grows everwhere even through the cracks in the pavement, but we can get our own back in a small way.. eat the seeds.
The seed pods of these plants pop, scattering the seeds over a fair distance so you have to be careful harvesting the seeds, not to shake the bush and thus help it propagate. Gently cup your hands round the pods and gently squeeze, when the pods are ripe they will pop in your hand
you can see here the tear drop shaped pods and the curls after they have popped to disperse their seeds
It doesn't take long to gather a handful and they are very tasty indeed and make a great wild food snack and they taste a little like pumpkin seeds. It's a good way to get your own back on this plant and get some wild food at the same time.