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Managing Cone Production in Christmas Trees duration 17 minutes 12 seconds Managing Cone Production in Christmas Trees Managing Cone Production in Christmas Trees	Managing Cone Production in Christmas Trees cones +18 More From Heidi Lindberg 8 plays 0
Balsam Woolly Adelgid and Christmas trees in… duration 1 hour 22 minutes Balsam Woolly Adelgid and Christmas trees in… Balsam Woolly Adelgid and Christmas trees in Michigan	Balsam Woolly Adelgid and Christmas trees in Michigan Speaker: Dr. Deborah McCullough, Michigan State… trees +19 More From Heidi Lindberg 140 plays 0

Managing Cone Production in Christmas Trees