Life Sciences Commons^™

Mp764: Field Manual For Managing Eastern White Pine Health In New England, William H. Livingston, Isabel Munck, Kyle Lombard, Jennifer Weimer, Aaron Bergdahl, Laura S. Kenefic, Barbara Schultz, Robert S. Seymour

Miscellaneous Publications

This manual provides basic information for identifying and evaluating important health problems of eastern white pine in New England. The health problems include:

• White pine weevil

• White pine blister rust

• Caliciopsis canker

• White pine bast scale

• White pine needle damage

• Red rot or Red-ring rot

In addition to providing descriptions of symptoms, signs, and risk factors, recommendations for white pine silviculture are described for managing stands for low densities and crop trees.

B837: New Approaches To Chemical Control Of White Pine Weevil Damage, John B. Dimond, Richard L. Bradbury

Bulletins

There has been little recent research on control of damage by the white pine weevil, and available insecticides have been few and have become obsolete. Tests in Canada suggested that the insect growth-regulating chemical diflubenzeron was effective, and we have successfully repeated those tests in Maine using several formulations of Dimilin and several ground application systems. Aerial trials have not succeeded; the probable reasons for their failure are discussed. We present a general description of the weevil and its damage, approaches to control of damage, and specific recommendations for use of ground applications of Dimilin, which has recently become registered …