REPORT ON THE CAUSES OF THE EARLY DECLINE OF PINUS SLYVESTRIS VAR.MONGOLICA SHELTERBELT AND ITS PREVENTATIVE AND CONTROL MEASURES IN ZHANG GUTAI OF LIAONING PROVINCE A BLUE-STAINING FUNGUS OF THE TIMBERS OF Hevea brasiliensis AND Pinus massoniana Studies on the Biological Characteristics of Pathogen, Diplodia pinea of Slash pine Dieback Study of production of sesquiterpenes of Aquilaria senensis stimulated by Lasiodiplodia theobromae Studies on Toxin Produced by Botryodiplodia theobromae A New Koelreuteria bipinnata var. integrifoliola Disease—Bark Cracking and the Pathogen Identification Stady on the Control of Blue Stain Fungus and Moulds on Rubber Wood with New Wood Preservative TWP and Others