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Preemergence Weed Control in Gladiolus Cormels

Published online by Cambridge University Press:  12 June 2017

James P. Gilreath
James P. Gilreath*
Affiliation:
Univ. Florida, IFAS, Gulf Coast Res. and Educ. Ctr., 5007 60th St. E., Bradenton, FL 34203
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Abstract

Multiple applications of several preemergence herbicides were evaluated for weed control and for phytotoxicity to gladiolus (Gladiolus X hortulanus L.) grown from cormels in 1984 and 1985. Oryzalin [4-(dipropylamino)-3,5-dinitrobenzenesulfonamide] consistently provided acceptable control of southern crabgrass [Digitaria ciliaris (Retz.) Koel. # DIGSP], goosegrass [Eleusine indica (L.) Gaertn. # ELEIN], and smooth pigweed (Amaranthus hybridus L. # AMACH) and had minimal effect on gladiolus plant growth even after four applications. Pronamide [3,5-dichloro (N-1,1-dimethyl-2-propynyl)benzamide], alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide], and metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] provided erratic weed control and reduced yields of gladiolus corms.

Keywords

HerbicidebulbletscormsminicormsGladiolus X hortulanusDIGSPELEINAMACH
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 6 , November 1986 , pp. 957 - 960
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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