Approach and Analysis: This experiment aims to sample leaves from every available Elm on the University of Massachusetts Amherst campus. There are currently 293 Elms on campus, and 16 unique species. Two of each Elm species, to be chosen in a manner that allows them to be as far apart as possible, will be searched for evidence of leaf miners by observing an accessible branch of the tree. The branch will searched for leaf miners on the last foot of the branch. All observed leaf miners will be removed from the infected tree. The leaves will be kept in a bag marked with the specific identification of the tree.
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