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Preemergence Weed Control in Southeastern Forest Nurseries

Published online by Cambridge University Press:  12 June 2017

T. R. Dill  and
M. C. Carter
T. R. Dill
Affiliation:
Auburn Univ. Agr. Exp. Sta., Auburn, AL. 36830
M. C. Carter
Affiliation:
Auburn Univ. Agr. Exp. Sta., Auburn, AL. 36830
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Abstract

Weed control trials were conducted on loblolly pine (Pinus taeda L.) or slash pine (Pinus elliottii Engelm.) seedbeds at 12 locations in the southeastern United States. Good weed control was obtained from 2,4-bis-(isopropylamino)-6-(methylthio)-s-triazine (prometryne) at 2.2 and 4.5 kg/ha; N,N-dimethyl-2,2-diphenylacetamide (diphenamid) at 4.5 and 9 kg/ha; α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) at 1.1 and 2.2 kg/ha; and 2-ethylthio-4,6-bis-isopropylamino-s-triazine (GS-16068) at 2.2 and 4.5 kg/ha as preemergence applications immediately followed by irrigation. Diphenamid and trifluralin treatments were not injurious to either pine species at either rate. GS-16068 was only slightly injurious at the high rate at one location. Prometryne was injurious at two locations at the high rate and at one location at the low rate.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 4 , July 1973 , pp. 363 - 366
Copyright
Copyright © 1973 Weed Science Society of America 

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References

Literature Cited

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