Blackberries Gone Wild!

Blackberries Gone Wild!

Blackberries are taking over my whole yard! How can I effectively destroy or tame them? I tried using a weed whacker but the blackberries are pretty resilient. Should I go at them with hedge clippers? What is a good way to prevent them from spreading further? Thanks.
Help…

Help…

Hello my new friends!

Hello my new friends!

Late-season color

Late-season color

March of Months

March of Months

Sunroot (Jerusalem artichoke)

Sunroot (Jerusalem artichoke)

Early Morning Treasures

Early Morning Treasures