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1977
The gypsy moth is probably the most important defoliating insect of hardwoods—especially the oak—in the northeastern United States. This insect is often confused with other forest Insects of similar size, shape, and coloring. Much effort and money have been spent to control or to eliminate this pest from this continent.
Forest Service, U.S. Dept. Of Agriculture +1 more
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The gypsy moth is probably the most important defoliating insect of hardwoods—especially the oak—in the northeastern United States. This insect is often confused with other forest Insects of similar size, shape, and coloring. Much effort and money have been spent to control or to eliminate this pest from this continent.
Forest Service, U.S. Dept. Of Agriculture +1 more
openaire +1 more source
2008
Over the last 50 years, North American forests have been inundated by a multitude of alien pest invasions. Among these, noteworthy invaders include the hemlock woolly adelgid (Adelges tsugae), emerald ash borer (Agrilus planipennis), chestnut blight and Dutch elm disease.
Michael L. McManus, Andrew M. Liebhold
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Over the last 50 years, North American forests have been inundated by a multitude of alien pest invasions. Among these, noteworthy invaders include the hemlock woolly adelgid (Adelges tsugae), emerald ash borer (Agrilus planipennis), chestnut blight and Dutch elm disease.
Michael L. McManus, Andrew M. Liebhold
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Journal of Economic Entomology, 1968
Rearing Porthetria dispar (L.), through 1 generation at light regimes of 11, 13, 15, 17, and 19 hours per 24-hour day at temperatures of 19.5 and 28°C had no influence on induction or termination of diapause. Rearing temperature of 28°C caused egg mortality. A few eggs obtained in rearings at 19.5°C hatched without chilling.
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Rearing Porthetria dispar (L.), through 1 generation at light regimes of 11, 13, 15, 17, and 19 hours per 24-hour day at temperatures of 19.5 and 28°C had no influence on induction or termination of diapause. Rearing temperature of 28°C caused egg mortality. A few eggs obtained in rearings at 19.5°C hatched without chilling.
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Cultivation of Gypsy Moth Hemocytes
1971Hemocytes offer the investigator a readily accessible source of important cell culture material. Since the hemolymph pervades all areas of the invertebrate host, its cells provide a significant system for analysis with respect to pathogen infection.
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