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Siberian Elm—A Tough New Invader of Grasslands

Published online by Cambridge University Press:  12 June 2017

E. H. McIlvain  and
C. G. Armstrong
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Abstract

Seedlings of Siberian elm (Ulmus pumila L.) readily invade grasslands of the Southern Plains and are a serious economic problem. Siberian elm was not susceptible to foliage or basal sprays of phenoxy herbicides applied during 3 successive years. Individual trees were killed easily by 1 g (ai) per inch of trunk diameter of 3-(p-chlorophenyl)-1,1-dimethylurea (monuron) or 3-phenyl-1,1-dimethylurea (fenuron) applied in a ring around the tree. However, the dense population and rapidity of reinvasion make this treatment too expensive.

Type
Brief Papers
Information
Weeds , Volume 13 , Issue 3 , July 1965 , pp. 278 - 279
Copyright
Copyright © 1965 Weed Science Society of America 

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