Maple
Agriculture

During late winter to early spring in northeastern North America, when the night-to-day temperatures change from freezing to thawing, maple trees may be tapped for sap to manufacture maple syrup. The sap is sent via tubing to a sugar house where it is boiled to produce syrup or made into maple sugar or maple taffy. It takes about 40 litres (42 US qt) of sugar maple sap to make 1 litre (1.1 US qt) of syrup. While any Acer species may be tapped for syrup, many do not have sufficient quantities of sugar to be commercially useful, whereas sugar maples (A. saccharum) are most commonly used to produce maple syrup. Québec, Canada is a major producer of maple syrup, an industry worth about 500 million Canadian dollars annually.

Also, as these trees are a major source of pollen in early spring before many other plants have flowered, maple flowers are a source of foraging for honeybees that play a commercially important role in general agriculture and in natural habitats.
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