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Full-Text Articles in Forest Sciences
The Tympanis Canker Of Red Pine, John Raymond Hansbrough
The Tympanis Canker Of Red Pine, John Raymond Hansbrough
Yale School of the Environment Bulletin Series
A new disease of red pine has recently been found in southern Connecticut, Rhode Island, eastern Massachusetts, western and central New York, northern New Jersey, eastern Pennsylvania, central Ohio, and southern Michigan. It is of serious consequence only on plantation-grown red pine, but it also occurs occasionally on eastern white pine. On the former host it is characterized by axially elongated, annual main-stem cankers which are always centered at the nodes. Infection takes place through adhering lateral dead branches and the growth of the fungus after it gains entrance to the stem.is usually very rapid-Le., cankers up to three feet …
The European Pine Shoot Moth (Rhyacionia Buoliana Schiff.): With Special Reference To Its Occurrence In The Eli Whitney Forest, Roger B. Friend, Allen S. West Jr
The European Pine Shoot Moth (Rhyacionia Buoliana Schiff.): With Special Reference To Its Occurrence In The Eli Whitney Forest, Roger B. Friend, Allen S. West Jr
Yale School of the Environment Bulletin Series
The European pine shoot moth has been recognized as a pest .in Europe for over a century. It was first discovered in the United States in 1914, since when it has become a serious enemy of red pine. The insect is becoming increasingly abundant in this country and is known to be present in Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Pennsylvania, West Virginia, Illinois, Ohio, Michigan, possibly Florida, and in the provinces of Ontario and British .Columbia in Canada. Some fifteen species of pines susceptible to injury in varying degree have been reported as hosts .of this insect, …