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Leaf Removal Interval Effect After Sprays to Woody Plants

Published online by Cambridge University Press:  12 June 2017

R. E. Meyer,
R. W. Bovey,
T. E. Riley and
W. T. McKelvy
R. E. Meyer
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of. Agr., Dep. of Range Sci., Tex. A&M Univ., College Station, Tex. 77843
R. W. Bovey
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of. Agr., Dep. of Range Sci., Tex. A&M Univ., College Station, Tex. 77843
T. E. Riley
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of. Agr., Dep. of Range Sci., Tex. A&M Univ., College Station, Tex. 77843
W. T. McKelvy
Affiliation:
Plant Sci. Res. Div., Agr. Res. Serv., U.S. Dep. of. Agr., Dep. of Range Sci., Tex. A&M Univ., College Station, Tex. 77843
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Abstract

Greenhouse grown honey mesquite (Prosopis juliflora (Swartz) D.C. var. glandulosa (Torr.) Cockerell), huisache (Acacia farnesiana (L.) Willd.), and whitebrush (Aloysia lycioides Cham.) and field grown honey mesquite, huisache, whitebrush, live oak (Quercus virginiana Mill.), Arizona ash (Fraxinus velutina Torr.), and winged elm (Ulmus alata Michx.) were defoliated at several intervals following spray treatments with 4-amino-3,5,6-trichloropicolinic acid (picloram), 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), or [(4-chioro-o-tolyl)oxy]acetic acid (MCPA). The time required by leaves to be retained on the plant after spraying to give maximum canopy reduction or death of plants varied among species. In most species, however, herbicide absorption and transport were complete within a 4-day period or less as compared to undefoliated treated plants.

Information

Type
Research Article
Information
Weed Science , Volume 20 , Issue 5 , September 1972, pp. 498 - 501
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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