July 23 (Reuters) - Canada's main stock index opened

lower on Tuesday as a dip in crude prices hurt energy stocks,

while investors also awaited the Bank of Canada's monetary

policy decision later in the week.

At 9:32 a.m. ET (1332 GMT), the Toronto Stock Exchange's

S&P/TSX composite index was down 42.42 points, or

0.18%, at 22,834.56 at open.