Cultural Hotline Issue 1

Winter damage took its toll on landscape plants this winter.  Damage on a black oak is on the left.  Photo provided by Randy Cyr, Greentree, Bugwood.org.

 

 

 

 

 

Frost damage to the trunk of a pear tree.  Photo provided by William Jacobi, Colorado State University, Bugwood.org

 

 

 

Brown needles on the south side of the pine tree.  Photo provided by USDA Forest Service – North Central Research Station Archive, USDA Forest Service, Bugwood.org

Insect Hotline Issue 1


Witch hazel gall aphid on river birch. This aphid occurs later in the spring. Photo by: B. A. Kunkel, Ornamentals IPM Extension Specialist, University of Delaware

Witch hazel gall aphid on river birch. Photo by: B. A. Kunkel, Ornamentals IPM Extension Specialist, University of Delaware

Woolly beech aphids are active later in the spring. Photo provided by: B. A. Kunkel, Ornamentals IPM Extension Specialist, University of Delaware

Winged adult green peach aphid. Photo provided by: Scott Bauer, USDA Agricultural Research Service, Bugwood.org

Green peach aphid adult giving live birth. Photo provided by: Jim Baker, North Carolina State University, Bugwood.org

Green peach aphids (adults, winged adults, immatures). Photo provided by: Whitney Cranshaw, Colorado State University, Bugwood.org