bronze birch borer

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Decumbent Cincinnati, OH(Zone 6b) Jan 17, 2006

Is bronze birch borer a native or exotic insect?

Scott

Post #1983271
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tapla Bay City, MI(Zone 6a) Jan 17, 2006

It's native.

Al

Post #1983382
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StarhillForest Illinois, IL(Zone 5b) Jan 18, 2006

That's one reason why all exotic birch species seem to be so unable to cope with it. Our native birches, given suitable growing conditions and climate, are resistant to varying degrees.

Guy S.

Post #1983936
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