. Bulletin. Forests and forestry. Insect Enemies of Shade Trees and Shrubs 55 10. THE LOCUST BORER (Cyllene rohinae Drury.) The black locust is one of the most valuable trees for the farm wood lot, for when conditions are right it furnishes a plentiful supply of post timber both for home use and for the market. However, this valuable tree has a most serious enemy in the locust borer — such a destructive enemy that it has made the successful rearing of black locust apparently. Fig. 23. Adult of the locust borer. About three times natural size. (Original) impossible in many parts of the country.


. Bulletin. Forests and forestry. Insect Enemies of Shade Trees and Shrubs 55 10. THE LOCUST BORER (Cyllene rohinae Drury.) The black locust is one of the most valuable trees for the farm wood lot, for when conditions are right it furnishes a plentiful supply of post timber both for home use and for the market. However, this valuable tree has a most serious enemy in the locust borer — such a destructive enemy that it has made the successful rearing of black locust apparently. Fig. 23. Adult of the locust borer. About three times natural size. (Original) impossible in many parts of the country. It is deadly to the locust not only in the wood lot and in plantations but is equally deadly to this species when used as shade trees. For this reason this insect is of nearly equal interest to the dwellers in the city and in the country. The adult insect is a handsome beetle slightly over half an inch in length. It is black in color with both wing covers and thorax marked with irregular yellow bands as shown in Fig. 23, those on the middle of the back being shaped like a letter " W". They fly only in September and October, are. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original State University College of Forestry at Syracuse University. Syracuse, N. Y.


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry