esagor:
Declining jack pine, Brainerd MN
esagor:
White pine pruned for blister rust resistance
esagor:
Bark beetle exit holes in red pine
esagor:
Red pine hard snag
esagor:
Red pine hard snag
esagor:
Logpile and bark beetle breeding ground
esagor:
Two kinds of exit holes on red pine
esagor:
Red pine bark beetle mortality in a recently thinned stand
esagor:
White pine blister rust
esagor:
White pine blister rust
esagor:
Black knot disease on cherry, Kerrick MN
esagor:
Growth ring reduction in red pine
esagor:
Jack pine snag on edge of harvest area
esagor:
Woodpecker activity on red pine snag, Willow River MN
esagor:
1999 BW blowdown: Miles Island snag
esagor:
Witch's broom on jack pine, Brainerd MN
esagor:
Fresh red pine snag
esagor:
Jack pine snag, early stage decomposition
esagor:
Burls on jack pine
esagor:
Witch's broom on jack pine: A closer look
esagor:
Galls and new and old leaves on bur oak
esagor:
Common buckthorn foliage and flowers
esagor:
American elm killed by Dutch elm disease
esagor:
Honeysuckle
esagor:
Open-grown buckthorn, Woodbury MN
esagor:
New red pine cone and larvae
esagor:
Larvae feeding on red pine needles, Woodbury MN
esagor:
Heavy buckthorn invasion in hardwoods, Woodbury MN
esagor:
Understory shrubs re-invading after ineffective control
esagor:
European pine sawfly larvae on Mugo pine
