Updates at market close

By Fergal Smith

March 10 (Reuters) - Canada's main stock index fell to a four-month low on Monday, including declines for technology and metal mining shares, as investors globally grew more worried that the unpredictability of U.S. trade policy could derail economic growth.

The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE ended down 378.05 points, or 1.5%, at 24,380.71, its lowest closing level since November 4, the day before the election of U.S. President Donald Trump.

U.S. stocks posted even steeper declines.

Trump on Sunday declined to rule out that his tariffs on Canada, Mexico and China may cause a U.S. recession. A Reuters poll found that recession risks were mounting for the U.S., Mexico and Canada.

"The market selling off tech is a direct indication that future growth is being called into question," said Allan Small, senior investment advisor of the Allan Small Financial Group with iA Private Wealth. "Technology is where you see people invest when they're bullish on growth potential for the future."

The Toronto market's technology sector fell 3.6%, with shares of e-commerce company Shopify Inc SHOP.TO down 6.9%.

The materials group, which includes fertilizer and metal mining shares, lost 2.6% as gold XAU= and copper HGc1 prices fell.

Heavily weighted financials were down 1.6% and industrials ended 2% lower. The utilities sector was the only major one to end higher, advancing 0.4% as bond yields declined.

The Bank of Canada is expected on Wednesday to cut its benchmark interest rate by a further 25 basis points to support the economy, after lowering the rate by two percentage points since June to its current setting of 3%.

Whitecap Resources Inc WCP.TO shares fell 14.5% after the oil producer agreed to merge with Veren Inc VRN.TO in an all-stock deal valued at C$15 billion ($10.43 billion) including debt. Shares of Veren were up 16.0%.

(Reporting by Fergal Smith in Toronto and Nikhil Sharma in Bengaluru; Editing by Leroy Leo and Sandra Maler)

((fergal.smith@thomsonreuters.com; +1 647 480 7446))