Uninfectes elm wood as a source of the bark beetle (Scolytus multistriatus Marsham), Carrying the Dutch Elm Disease Pathogen /
by Donald L. Collins, K.G. Parker and Henry Dietrich
- Ithaca, N.Y. : Cornell University Agricultural Experiment Station
- 14 p.
- Bulletin; 740 .
Encuadernado con: Orchard insects of the pacific northwest and their control / by E.J., Newcomer