Balsam Woolly Aphid PDF Download
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Author: R. G. Mitchell
Publisher:
ISBN:
Category : Balsam woolly adelgid
Languages : en
Pages : 12
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Book Description
Author: Norman E. Johnson
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 46
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Book Description
Author: R. G. Mitchell
Publisher:
ISBN:
Category : Balsam woolly adelgid
Languages : en
Pages : 12
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Book Description
Author: R. Ladd Livingston
Publisher:
ISBN:
Category : Adelgidae
Languages : en
Pages : 38
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Book Description
Author: Gene D. Amman
Publisher:
ISBN:
Category : Balsam woolly adelgid
Languages : en
Pages : 6
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Book Description
Author: Gene D. Amman
Publisher:
ISBN:
Category : Balsam woolly adelgid
Languages : en
Pages : 4
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Book Description
Author: Gene D. Amman
Publisher:
ISBN:
Category : Balsam woolly adelgid
Languages : en
Pages : 4
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Book Description
Examination of 5-foot sections of felled Fraser fir, Abies fraseri (Pursh) Poir., trees infested or killed by the balsam woolly aphid, Adelges piceae (Ratzeburg), revealed that the height of the first annual ring of aphid-caused redwood increased as the height of the trees increased. The number of red rings varied from two in a tree 5 inches in d.b.h. to five or six in all trees 9 or more inches in d.b.h., indicating that larger trees can sustain aphid attacks for longer periods before death than can smaller trees.
Author: Auburn E. Brower
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 694
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Book Description
Author: Robert Imre Gara
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 82
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Book Description
Author: Canada. Dept. of Agriculture. Division of Forest Insects
Publisher: Division of Forest Insects
ISBN:
Category : Aphids
Languages : en
Pages : 4
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Book Description
Author: Canada. Department of Agriculture. Forest Biology Division
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 8
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Book Description
