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Selective Control of Downy Brome and Rattail Fescue in Irrigated Perennial Grass Seed Fields of Central Oregon

Published online by Cambridge University Press:  12 June 2017

William O. Lee
William O. Lee*
Affiliation:
Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, Corvallis, Oregon
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Abstract and summary

Downy brome (Bromus tectorum L.), and rattail fescue (Festuca myuros L.) were controlled by 2-methoxy-3,6-dichlorobenzoic acid (dicamba) and 2,4-bis(isoproplyamino)-6-methylmercapto-s-triazine (prometryne). Both herbicides gave 70–100% control when applied soon after the first postharvest irrigation. Dicamba was somewhat less effective when applied before this irrigation. Neither herbicide reduced seed yields when applied before or immediately after the first postharvest irrigation, but both herbicides caused some significant seed yield reductions when treatments were delayed until after considerable crop regrowth had occurred.

Type
Research Article
Information
Weeds , Volume 13 , Issue 3 , July 1965 , pp. 205 - 208
Copyright
Copyright © 1965 Weed Science Society of America 

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References

Literature Cited

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