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Leaves have started to change colors but it's not because of the weather Submitted: 08/16/2013
ACROSS THE NORTHWOODS - Look around you and you may notice signs of autumn. We're already starting to see leaves changing colors but experts say this is nothing new for August.

Summer has been on the chilly side of normal. But that is not the cause of some trees in the Northwoods starting to show color.

"What makes them turn is primarily triggered by the day length. As the days get shorter, that's what makes start turning, getting ready for winter," says Jerry Van Cleve, U.S. Forest Service Silviculturist.

There are also other factors that lead to leaves changing. Some may have diseases that can contribute early change.

"The ones that I notice, just the loners that turn early. Usually those tend to red maple. But yeah, you'll see any tree that's under stress will kind of go to yellow whether it's an Aspen, or a Birch, or an Elm," says Jerry Van Cleve.

But give the healthy trees a month or so and they'll be ready to change too. And this year's fall season should be a brightly colored one.

"I think it's going to be a good year, you know, we got some of the ingredients in place. We got a nice wet spring and the summer hasn't been exceedingly hot or dry," said Jerry Van Cleve.

So as long as we get some nice days with above freezing nights, we'll see a lot of vivid colors this fall.


Story By: Melissa Constanzer

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