The G20 summit has banished garbage bins, mailboxes, cell phone signals and now trees.

Police say crews are removing saplings from inside the RCMP-controlled zone of downtown Toronto because they're a security threat.

Const. Wendy Drummond says trees in the Security Zone will be removed and then later replaced because protesters could rip them down and use pieces of wood as weapons.

Drummond describes it "like child-proofing your home."

Crews will determine if a tree could be uprooted by two to three adults, and if a person could damage it. If that's the case, the tree will be cleared from the zone.

She says she's not sure how many trees will be removed, but crews are working on a case-by-case basis.

Critics, however, tell the National Post that the idea of removing a tree for the three-day meeting is "insane."