GYPSY AND BROWN-TAIL MOTHS--THEIR INSECT ENEMIES Part 3
Description
Shows moths on buildings, trees, and other objects. Uses maps to describe the spread of the moth infestation throughout New England. Explains how scientists discovered and then imported natural enemies to counteract the infestation. Includes views of laboratory and field work. Results of the scientific work is noted.
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Records of the Extension Service
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Date
1928-01-01
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TRT
3:39
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