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    Author(s): J.L. Michael
    Date: 1981
    Source: In: Proceedings, 34th Annual Meeting Southern Weed Science Society; 1981 January 20-22; Hot Springs Arkansas. [Champaign, IL]: Southern Weed Science Society. 192-196
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (70 KB)

    Description

    Hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,2,5-triaine-2,4,(1H,2H)-dione] was tested in the 2, 1, and 0.5 cc size uellet (10% ai) against very small stems [average height, 1.97m; average ground line diameter (GLD), 2 cm] of water oak, Quercus nigra L., at 1.12 and 2.24 kg/ha on a sandy loam soil. First year defoliation of water oak by the 0.5 cc pellet at 2.24 kg/ha was significantly better than the 2 cc pellet at the same rate (88% and 59% respectively). Defoliation by the 0.5 cc pellet at 1.12 kg/ha (63%) was as good as defoliation from the 2 cc pellet at 2.24 kg/ha. On the basis of previous experiments, absolute kill of water oak in this study was calculated. The 0.5 cc pellet at 2.24 kg/ha will result in kill of 56% of the small stems in this study and the 2 cc pellet at this same rate will kill 32% of the stems. Reduction of the pellet size from 2 cc to 0.5 cc can result in product which is more effective and make its use feasible on some sites where it is not currently recommended.

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    Citation

    Michael, J.L. 1981. Effect of Pellet Size of Defoliation and Estimated Kill of Small Stems Treated with Hexazinone. In: Proceedings, 34th Annual Meeting Southern Weed Science Society; 1981 January 20-22; Hot Springs Arkansas. [Champaign, IL]: Southern Weed Science Society. 192-196

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