Most of the abstracts were submitted on floppy disk and were edited to achieve a uniform format and type face. Each contributor is responsible for the accuracy and content of his or her own paper. Statements of the contributors from outside the U.S. Department of Agriculture may not necessarily reflect the policy of the Department. Some participants did not submit abstracts, so they have not been included. The use of trade, firm, or corporation names in this publication is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the U. S. Department of Agriculture or the Forest Service of any product or service to the exclusion of others that may be suitable. Remarks about pesticides appear in some technical papers contained in these proceedings. Publication of these statements does not constitute endorsement or recommendation of them by the conference sponsors, nor does it imply that uses discussed have been registered. Use of most pesticides is regulated by State and Federal Law. Applicable regulations must be obtained from the appropriate regulatory agencies. CAUTION: Pesticides can be injurious to humans, domestic animals, desirable plants, and fish and other wildlife-if they are not handled and applied properly. Use all pesticides selectively and carefully. Follow recommended practices given on the label for use and disposal of pesticides and pesticide containers.
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