Aug 2 (Reuters) - Canada's main stock index opened lower on Thursday, as financial and energy stocks fell on escalating trade worries and a dip in oil prices.
* At 9:30 a.m. ET (13:30 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 71.74 points, or 0.44 percent, at 16,305.03.