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Effectiveness of Polymer Film Coating of Cotton Seed in Reducing Dusting-Off

K.D. Williams, N.W. Hopper


 
ABSTRACT

As seed are treated with increasing amounts of chemicals, it becomes more likely that these materials may be lost during handling, a process known as dusting-off. Polymers show the potential to reduce dusting-off. In two studies involving different polymers (Dynacoat and Opacoat Red), Dynacoat generally had no effect on dusting-off and Opacoat Red demonstrated an ability to reduce dusting-off. As the rate of application increased, the Dynacoat polymer did not generally effect dusting-off. The Opacoat Red polymer reduced dusting off at all application rates and methods, but had the most prominent effect when the rate of polymer increased or the polymer was applied as a mixture with the fungicide (vs. a polymer coat over the fungicide). Both polymers did not reduce the establishment percentage in a cold chamber study at 640F (180C). The Dynacoat polymer did not decrease imbibition of water through 12 hours at 680F (200F).



Reprinted from Proceedings of the 1997 Beltwide Cotton Conferences pp. 1456 - 1458
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998