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CFNP a Selective Herbicide for Sunflower

Published online by Cambridge University Press:  12 June 2017

Tetsuo Takematsu ,
Makoto Konnai  and
Yasutomo Takeuchi
Tetsuo Takematsu
Affiliation:
Weed Control Res. Inst., Utsunomiya University, Utsunomiya-shi, Japan
Makoto Konnai
Affiliation:
Weed Control Res. Inst., Utsunomiya University, Utsunomiya-shi, Japan
Yasutomo Takeuchi
Affiliation:
Weed Control Res. Inst., Utsunomiya University, Utsunomiya-shi, Japan
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Abstract

Two, 4-dichloro-6-fluorophenyl-p-nitrophenyl ether (CFNP) is similar in herbicidal property and chemical structure to nitrofen (2,4-dichlorophenyl-p-nitrophenyl ether). CFNP inhibits the growth of the hypocotyl and young buds of germinating weeds. Henry Crabgrass (Digitaria adscendens H.B.K. Henr.) was controlled by CFNP at 0.5 kg/ha, however sunflower (Helianthus annuus L.) was tolerant to 16 kg/ha of CFNP. CFNP also effectively controlled largeseed dodder (Cuscuta indecora Choisy) which is a serious problem in sunflower. Although trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) did not control common dodder at 8 kg/ha, CFNP gave control at 0.5 kg/ha.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 1 , January 1975 , pp. 57 - 60
Copyright
Copyright © 1975 by the Weed Science Society of America 

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References

Literature Cited

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