. Bulletin. Agriculture -- New Hampshire. AGRICULTURAL EXPERIMENT STATION 139 The insectary has been found useful in studying the life- histories of insects, and its utility is likely to increase as the ,,-rr;?^ scope of the work "'[â â /'Jji. undertaken en- j^ v^fe^-?; larges. /pi /^^^?i^y A?fi" â â <~:^T^®«" I desire here to '5r~5;^^S^? express my thanks IjSy^' ^ to Dr. L. O. How- ard and the ento- mologists a s s oci- ated with him in the Entomological Division of the United States De- partment of Agri- c u 11 u r e, for the determination of many insects dur- ing the yea
. Bulletin. Agriculture -- New Hampshire. AGRICULTURAL EXPERIMENT STATION 139 The insectary has been found useful in studying the life- histories of insects, and its utility is likely to increase as the ,,-rr;?^ scope of the work "'[â â /'Jji. undertaken en- j^ v^fe^-?; larges. /pi /^^^?i^y A?fi" â â <~:^T^®«" I desire here to '5r~5;^^S^? express my thanks IjSy^' ^ to Dr. L. O. How- ard and the ento- mologists a s s oci- ated with him in the Entomological Division of the United States De- partment of Agri- c u 11 u r e, for the determination of many insects dur- ing the year. The assistance thus ren- dered has always. Fig. I. Rose leaf eaten by Tent Caterpillars. (Original.') been prompt and comteous, and has been of great value in our work. It de- serves the fuller acknowledgment, because it is seldom practi- cable to render adequate return for the favors so freely given. The Insect Record for 1897 The ravages of the common Tent Caterpillar continued during the early part of the season to very much the same extent as last year. We followed the history of the insects, carefully noting their range ot food-plants and times of trans- formations, and began a systematic study of the natural enemies of the pest. We hope to continue this investigation through the coming season. Already we have bred more than twenty different species of primary and secondary parisites from these tent caterpillars, which fortunately are subject to such enemies from the time they are in the egg until they become full grown. These studies have served again to show how intricate are the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New Hampshire Agricultural Experiment Station. [Hanover, N. H. ] : New Hampshire Agricultural Experiment Station
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