Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Becker, W. B., M. A. McKenzie, A. I. Bourne, and W. D. Whitcomb. 1956. Seasonal control of Dutch elm disease and insect pests of elms in Massachusetts . Trees Magazine 168-9, 18-19.
This page uses cascading style sheets (CSS). It should display correctly using current versions of all major browsers.