Black
Locust - Robinia pseudoacacia
Family: Fabaceae
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Description
Black locust has been planted extensively for its nitrogen fixing abilities,
as a source of nectar for honeybees, and for fenceposts and hardwood lumber.
The clonal pattern of growth and connected roots are promoted for erosion
control. It is also used for mine soil reclamation. Black locust is susceptible
to some damage from two native insects, the locust borer (Megacyllene
robiniae) and the locust leafminer (Odontota dorsalis).
Interesting facts
.Mowing and burning are only effective in reducing the further spread
of young shoots from a clone or parent tree. To kill a clone, cutting
alone is ineffective. Herbicides applied to the stems or cut stumps spread
into the root system and provide better control. From mid-June to August
hand sprayer application of 6.25% glyphosate solution (15:1 water:glyphosate)
to stumps cut near the ground has been used by the Minnesota Department
of Natural Resources, Region V State Parks Resource Management Office.
Resprouting and suckering from dense clones may require follow up treatment
after a few years*.