1937. Galls caused by balsam woolly aphid (Chermes picea; balsam woolly adelgid; Adelges piceae) on lowland white fir. Notice three years' buds have suffered similar injury. Senator Charles L. McNary's farm, Salem, Oregon. (34760347671)
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This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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- Opisthokonta (opisthokonts)
- Metazoa (animals)
- Bilateria
- Protostomia (protostomes)
- Ecdysozoa (ecdysozoans)
- Arthropoda (arthropods)
- Pancrustacea
- Hexapoda (hexapods)
- Insecta (insects)
- Pterygota (winged insects)
- Neoptera
- Paraneoptera
- Hemiptera (hemipterans)
- Sternorrhyncha (plant lice)
- Aphidomorpha (aphid)
- Adelgoidea
- Adelgidae (spruce aphids)
- Adelges
- Adelges piceae (Balsam Woolly Adelgid)
- Panarthropoda
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