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Broadleaf Weed Control with Clomazone in Pickling Cucumber (Cucumis sativus)

Published online by Cambridge University Press:  12 June 2017

Kassim Al-Khatib ,
Sorkel Kadir  and
Carl Libbey
Kassim Al-Khatib
Affiliation:
N.W. Res. Ext. Cent., Washington State Univ., Mt. Vernon, WA 98273
Sorkel Kadir
Affiliation:
N.W. Res. Ext. Cent., Washington State Univ., Mt. Vernon, WA 98273
Carl Libbey
Affiliation:
N.W. Res. Ext. Cent., Washington State Univ., Mt. Vernon, WA 98273
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Abstract

Broadleaf weed control ranged from 80% with clomazone at 0.14 kg/ha to 100% with clomazone at 1.12 kg/ha. Broadleaf weed control was higher with clomazone than naptalam or ethalfluralin. The combination of clomazone at 0.14 kg/ha and naptalam at 5 kg/ha or ethalfluralin at 1.25 kg/ha gave more than 90% broadleaf weed control. Clomazone caused chlorosis and bleaching on cucumber leaves but plants rapidly recovered. Cucumber yields were higher in plots treated with clomazone alone at 0.14 to 0.56 kg/ha than with ethalfluralin or naptalam alone. Clomazone dose response studies were conducted in weed-free plots with five cucumber varieties. The 0.28 kg/ha rate caused low levels of visible injury and did not decrease yields. Cultivar differences were more pronounced at higher clomazone rates. The five cucumber cultivars were, in order of increasing clomazone tolerance, ‘Sunre 3537,’ ‘Pioneer,’ ‘Quest,’ ‘Prince,’ and ‘Calypso.’ We concluded that clomazone is an effective and selective herbicide for broadleaf weed control in pickling cucumber.

Keywords

Clomazone, 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinoneethalfluralin, N-ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-(trifluoromethyl)benzenaminenaptalam, 2-[(1-naphthalenylamino)carbonyl]benzoic acid, cucumber, Cucumis sativus L.EthalfluralinnaptalamAMARECAPBPPOLPESOLSA
Type
Research
Information
Weed Technology , Volume 9 , Issue 1 , March 1995 , pp. 166 - 172
Copyright
Copyright © 1995 by the Weed Science Society of America 

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References

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