Beyond maple: Sap drips from a pine tree. Around the nation, producers are making syrup from the sap of pine, birch, even black walnut trees. iStockphoto hide caption

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Fresh maple syrup in two maple leaf-shaped bottles, with other bottles behind. Police officials have arrested three men who allegedly siphoned the sweet treat from 16,000 storage barrels stored in a Quebec warehouse. iStockphoto.com hide caption

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Maple syrup bottles sit on a shelf. A Canadian syrup producers' federation says a warehouse holding "over 10 million pounds of maple syrup" was recently burglarized. Toby Talbot/AP hide caption

itoggle caption Toby Talbot/AP