Diseases of Deciduous Forest Trees (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1909 Excerpt: ... bium, and where they are allowed to develop to any extent their destructive action may extend completely around a tree, resulting in the death of branches, and sometimes of the entire trunk. The slime-flux diseases can hardly be considered of great practical importance and only become so where valuable shade or park trees are affected. As a preventive measure, the precautions to be taken for wounds, referred to farther on, are applicable. DISEASES CAUSED BY WOUND FUNGI. WHITE HEART-ROT CAUSED BY FOMES IONIARIUS. The principal diseases of deciduous forest trees are caused by a group of fungi which grow in the heartwood of the trees. The chief interest which attaches to the maintenance of wood lots or forest tracts comes from the fact that such tracts are maintained for the wood which they produce. Anything, therefore, which either reduces the rate of wood production or actually destroys the wood formed is of particular interest. The fungi which are responsible for the decay and destruction of the heartwood of various broadleaf trees are quite numerous. They are more or less alike, however, as to their manner of entrance into the tree, their subsequent development, the production of their fruiting bodies, and the manner of prevention. In the following, one of the commonest of these fungi, the so-called "false-tinder fungus" (Fomes igniarius (L.) Gillet), is taken as a type, and such specific differences as apply to the other forms are given in the special chapters in the latter part of this bulletin which are devoted to the more important of these wood-rotting fungi. NATURE OF DISEASE CAUSED BY FOMES IONIARIUS. The disease of deciduous trees caused by the false-tinder fungus (Fomes igniarius) may be called the "white heart-rot." It is usually confined to the ...