Northlanders know that Tent Caterpillars - otherwise known as "Army Worms" - come and go in cycles.  The summer of 2014 is expected to be the high-point of that cycle, with a infestation that we haven't seen in decades.

Aerial surveys, released in a report this week, show forest tent caterpillars quadrupled their coverage area from a quarter-million acres of forest defoliated in 2012 to nearly 1.1 million acres in 2013.

That big jump is usually a bellwether for a major infestation, said Jana Albers, Minnesota Department of Natural Resources forest health specialist.

There are some factors that still remain to see just how massive this summer's outbreak will be - one of those includes the harsh winter of 2013-2014.

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