. Research for tomorrow's forests : 1983 research accomplishments. --. Forests and forestry Research United States. Insects and Disease Sawfly Virus Is Registered With EPA The European pine sawfly has been a minor, but recurring, pest of red and Scotch pines in the Northern United States. Christmas tree and municipal plantings have been a frequent target of this insect. It can be controlled by a nucleopolyhedrosis virus (NPV), a naturally occurring disease organism that spreads rapidly through sawfly populations. Research at the Northeastern Station, in cooperation with several universities, S
. Research for tomorrow's forests : 1983 research accomplishments. --. Forests and forestry Research United States. Insects and Disease Sawfly Virus Is Registered With EPA The European pine sawfly has been a minor, but recurring, pest of red and Scotch pines in the Northern United States. Christmas tree and municipal plantings have been a frequent target of this insect. It can be controlled by a nucleopolyhedrosis virus (NPV), a naturally occurring disease organism that spreads rapidly through sawfly populations. Research at the Northeastern Station, in cooperation with several universities, State and Private Forestry, and Canada, culminated in registration of the virus product by the Environmental Protec- tion Agency in 1983 for use by the For- est Service. The registered product has been given the name "; The virus is nighly virulent in sawflies and environmentally safe—one reason why it is in demand by watershed mana- gers. It is highly effective at very low dosages and inexpensive to produce and use. Unlike a chemical insecticide, it has the advantage of spreading tnrough the sawfly population after it is applied. Conventional ground or aerial equip- ment can be used to apply the virus in formulations that do not require special protectants or additives other than "stickers"— commonly used substances that keep the virus from washing off tree needles in the NEOCHEK-S BIOLOGICAL INSECTICIDE FOR THE EUROPEAN PINE SAWFLY, NEODIPRION SERTIFER. 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 United States. Forest Service. [Washington, D. C. ?] : USDA, Forest Service
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