Herbert G. Ewan

Born 1929-01-01

Identifiers

Open LibraryOL7621205A

Top Subjects

Mortality (1)
Temperature (1)
Cercopidae (1)
Lake States (1)
Aphrophora (1)
Aspen (1)
Disease and pests (1)

Books by Herbert G. Ewan

Total count: 2

Some effects of temperature extremes on Saratoga spittlebug populations

Lake States Forest Experiment Station1958-01-01
The poplar borer in relation to aspen stocking

Lake States Forest Experiment Station1960-01-01