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Control of Quackgrass with Pyriclor

Published online by Cambridge University Press:  12 June 2017

K. P. Buchholtz
K. P. Buchholtz*
Affiliation:
University of Wisconsin, Madison
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Abstract

Quackgrass (Agropyron repens (L.) Beauv.) was controlled with applications 1 to 8 months prior to plowing and planting of from 1 to 4 lb/A 2,3,5-trichloro-4-pyridinol (pyriclor). Corn (Zea mays L., hybrid W530) planted on pyriclor-treated plots grew normally and yielded as well as on plots given the standard preplow treatment of 2 lb/A of 2-chloro-4-ethylamino-6-isopropylamino-5-triazine (atrazine). Oats (Avena sativa L., var. Portage) was injured by soil residues of pyriclor from 2-lb/A applications made 20 months previously. Alfalfa (Medicago sativa L., var. Vernal) was somewhat more tolerant of pyriclor than was oats.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 4 , October 1968 , pp. 439 - 441
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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