Maple syrup producers have more than the weather to worry about. Frenetic squirrels are chomping on equipment, crimping the flow of sap at some operations.
Damage from wildlife 鈥� deer, bear woodpeckers, and squirrels 鈥� is not unusual for maple producers, but this year an abundant population of squirrels is disrupting plastic sap tubing and spouts at some sugaring operations in New England.
That means producers must go out into sometimes deep snow to find and replace the damaged lines that transport the sap from the maple trees or other chewed or missing equipment, which producers say can be time-consuming and expensive.
鈥淥ccasionally they declare war. And it seems like they have this year,鈥� said Ruth Goodrich of Goodrich鈥檚 Maple Farm in Danville, Vermont, the largest maple producing state.
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The business, which also sells maple equipment, thins out other trees so the maples don鈥檛 have competition and to remove the food source for squirrels. But on a parcel of state land it rents in Groton where other trees are mixed in, the squirrels did a number on the equipment.
The boom in the squirrel population is mostly tied to an increase in food source, such as acorns and other mast from trees, said Mark Isselstadt, maple specialist with the University of Vermont Extension. But the squirrels aren鈥檛 causing problems for all producers, he said.
The varmints haven鈥檛 been any worse than normal this year for Bascom Maple Farms in Alstead, New Hampshire.
鈥淲e haven鈥檛 had a lot of snow cover,鈥� said Bruce Bascom. 鈥淲e鈥檝e only got about a foot of snow here. I think the squirrels are not having that hard a winter.鈥�
But Lyle Merrifield of Gorham, Maine, said he鈥檚 had to fix about 60 spots in his operation damaged by the chomping critters.
The trouble is the squirrels could take one bite of tubing and move another 100 feet (30.5 metres) where they could take another bite, making the damage hard to find, said Merrifield, who is president of the Maine Maple Producers Association.
鈥淚鈥檝e heard a lot of people talk about squirrel damage so it鈥檚 probably the worst we鈥檝e seen, combined with the deep snow, just that combination,鈥� he said.
There鈥檚 no way to completely control the squirrels, Isselstadt said. It鈥檚 best to wear gloves when handling the tubing so salt and oil from bare hands isn鈥檛 left behind to attract wildlife. He advises against using any chemical deterrence on the tubing or anywhere near it. Trapping and shooting are also options.
But he said that won鈥檛 necessarily prevent the problem, because It doesn鈥檛 take many squirrels to affect the system.
鈥淭hey鈥檙e able to cover ground and do some damage, and you can fix a line and they鈥檒l be right back to it the next day,鈥� Isselstadt said.
Lisa Rathke, The Associated Press
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