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The Effect of Aliphatic Hydrocarbons on the Hypocotyls of Cotton and Soybeans and on the Shoots of Nut grass, Johnson grass and other Weeds by the Directional Spray Technique

Published online by Cambridge University Press:  12 June 2017

O. A. Leonard  and
V. C. Harris
O. A. Leonard
Affiliation:
Mississippi Agricultural Experiment Station, and Agent, U. S. Department of Agriculture, Division of Cereal Crops and Diseases
V. C. Harris
Affiliation:
U. S. Department of Agriculture, Division of Weed Investigation
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Extract

A high degree of control of annual weeds in cotton by the pre-emergence application of dinitro-secondary-butyl-phenol or its salts has led to appreciable commercial interest. Leonard, et al. showed that the above chemical was promising for controlling annual weeds in cotton, when applied to the soil as a pre-emergence herbicide, and there have been many reports on the method since that time. It was recognized that this treatment did not control perennial weeds such as nutgrass and Johnson grass, and that some additional treatment would be required to control these weeds. In January 1948, one of the authors had the opportunity to see sugarcane weeds in Puerto Rico controlled by the post-emergence application of fortified oil emulsions, and the procedure was included for study in the 1948 cotton tests. The primary interest of the authors was to find a spray that would control the perennial weeds and which, at the same time, would not be injurious to cotton. It was felt that the annual weeds could be controlled rather well by the pre-emergence treatment. The effect of fortified oils and oil emulsions and unfortified oils on cotton hypocotyls and on grass shoots showed that the fortifying chemicals (dinitro-secondary-butyl-phenol and pentachlorophenol) were quite injurious to cotton hypocotyls, but that some unfortified oils showed considerable promise for selectively weeding cotton.

Type
Papers
Information
Weeds , Volume 1 , Issue 3 , April 1952 , pp. 256 - 273
Copyright
Copyright © 1952 Weed Science Society of America 

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References

Literature Cited

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