Anonymous. 1976. Pine beetle battle in Denver. Weeds, Trees & Turf 15(7): 18, 20.
When hundreds and thousands of people moved up into their new homes in mountain valley subdivisions or onto their two or five acres further on up, they brought many changes with them. Along with the new homes came better fire protection. And because of that, trees are now growing where they’ve never grown before in such numbers. Weakened and overcrowded trees are most susceptible to mountain pine beetle destruction, so man created a situation that was ripe for a full-blown beetle infestation. And that’s exactly what developed.
Sherald, J.L. and R.S. Hammerschlag. 1976. How National Capital Parks control Dutch elm disease. Weeds, Trees and Turf 15(7): 26, 30, 32.
Despite the constant threat from Dutch elm disease (DED), the elm continues to play the dominant role in the landscape of the Federal Enclave of our nation’s capital. Over twenty-five hundred elms lend a graceful and majestic flavor to the streets, parks, monuments, and buildings of one of the world’s most significant park areas. The successful perpetuation of our national elms has not been without a tremendous investment of time and effort. At a time when elms throughout the northeast and midwest were being devastated by DED, the National Capital Parks (NCP) took immediate action to maintain and preserve this elm resource. Successful elm management has been achieved through the conscientious implementation of an expanding, comprehensive, integrated control program.
- © 1977, International Society of Arboriculture. All rights reserved.
