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Sphaeropsis Tip Blight of Pines

David S. Wysong

出版	Cooperative Extension, Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln, 1994
URL	http://books.google.com.hk/books?id=_JOoHAAACAAJ&hl=&source=gbs_api

註釋

The symptoms and disease cycle of this fungal disease, which commonly infects older pine plantings, are discussed and control measures are recommended.