Herbicidal Treatment Effect of 2,4-D on Carbohydrate Levels of Alligatorweed

摘要

Propylene glycol butyl ether esters of 2,4-dichlorophenoxyacetic acid were applied to floating alligatorweed (Alternanthera philoxeroids (Mart.)Griseb.) and the level of carbohydrates was determined in the underwater stems. The chemical was applied at 4 and 8 1b/A on five application dates during a growing season at two sites. One month after initial application, the readily acid-hydrolyzable carbohydrates had been depleted by an average of 23.8% in a tidal area and 14.5% in a non-flowering area. Throughout the growing season, carbohydrates were higher in a non-flowing area. (Author)