Black locust has a strong, spreading root system which makes it of much value in checking erosion. Probably no other forest tree is being planted so extensively for erosion control. It is a legume, which in part accounts for its power of growth in lean soils and makes it an outstanding soil builder.
A serious menace, however, to the growth of black locust is an insect known as the locust borer. Yet in many localities black locust can be grown successfully and profitably. In other localities the injury done by this insect makes attempts to grow the tree almost impracticable. Black locust, like most forest trees, is naturally better adapted to certain types of soils and situations than others.
The vigor of the tree apparently to a great extent determines the degree of attack by the locust borer. Fortunately the tree's vigor can within limits largely be determined by man through the selection of the soil or site for planting, the method of planting, and subsequent care and cultivation.
Before attempting to plant black locust on a considerable scale, it would be advisable to secure information and advice from one or more of the local State forestry agencies, as a necessary supplement to that contained in this bulletin.| Washington, D. C. | Issued May 1930 Revised May 1937 Slightly revised January 1941 |
