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Evaluation Technique for Preemergence Herbicides for Sugarcane

  • H. W. Hilton (a1) and Edith Lawrence (a1)


An 1130 IBM computer was used to process data from experimental plots to evaluate performance of preemergence herbicides in Hawaiian sugarcane fields (planted with varieties of four Saccharum spp.). The evaluation technique compares performance of experimental herbicides with the performance of three standard herbicides [2-(ethyl-amino)-4-(isopropylamino)-6-(methylthio)-s-triazine (ametryne), 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine), and 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron)] under a wide range of environmental conditions. Under most conditions the substituted triazine 2-(sec-butylamino)-4-(ethylamino)-6-methoxy-s-triazine (GS-14254) gave better total weed control without crop toxicity than any of the three standards, and was particularly well-suited to regions of high rainfall.



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1. Hilton, H. W. 1964. Evaluation of HSPA pre-emergence and post-emergence herbicide program. Reports, Hawaiian Sugar Technologists 23:7880.
2. Hilton, H. W. 1967. A technique for evaluating pre-emergence herbicides. Hawaiian Planters' Record 57:278291.


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