What troublesome invasive weed do you have in your area?

Joined
Dec 31, 2017
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Location
SE British Columbia, Canada
Here is the bad boy in our hood. I have a load going to the dump.

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Thorny Greenbriar. Birds love the fruit and it seeds easy. Can't pull it up as it has very tenacious roots right off the bat and the entire plant even the upper parts of the roots has tiny spines. Grows fast and is really an attractive plant, like poison ivy. Got a lot of that too.

But the Greenbriar has a glossy leaf and is immune to all but the strongest stuff. I finally found Gordons Brush killer will do the job. Cutting it off just makes it come back 10x the problem. I dug up a lot this spring as it, a evergreen in protected places.

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New growth is attractive but it's a very tough vine as it ages and needs cut to remove. Won't break off.
 
I have good luck with sending pictures to the Co-op extension for our state University. They respond with correct plant identification and suggestions to deal with it.

Grass like weeds in the lawn are the biggest issue for for. Quinclorac kills crabgrass but not some of the other grassy weeds like Dallisgrass and Goosegrass.
 
I have Nimblewill too. It's like a perennial crabgrass. Dense roots, short bladed when mowed. Spreads by seed and roots.

It turns brown at first frost and is slow to green up in spring, but stays green though drought.
 
We also have a lot of Quack grass, which looks similar to Crab grass but has underground Rhizomes which grow horizontally underground to create more plants. In rural lawns it’s so common that people often give up and just mow more frequently because it grows faster than normal grass and looks ragged. Round up is probably the only way to deal with it but it kills everything.

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Common Buckthorn
Glossy Buckthorn
Asian Bittersweet
Japanese Barberry
Garlic Mustard
Wild Parsnip

Glossy Buckthorn is the king of invasives here. Other ones are just little puppies.

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