CANADA STOCKS-TSX closes lower as energy, mining weighs

TORONTO, Oct 18 (Reuters) - Canada's main stock index finished lower on Wednesday as energy and mining stocks fell, offsetting gains by Canadian Pacific Railway.

The Toronto Stock Exchange's S&P/TSX composite index ended down 34.74 points, or 0.2 percent at 15,782.16.

Half of the index's 10 key sectors were in retreat. (Reporting by Solarina Ho; Editing by Chris Reese)