ABSTRACT
The proposed management of aquatic plants consists of a spring and fall application of herbicides. Typically, during the spring months 1500 acres of water hyacinth are treated at the Sam Rayburn Project. Control and elimination of alligator weed at B. A. Steinhagen Lake are beneficial in preventing its spreading to other nearby lakes through boaters carrying its debris on their boats. The optimal time of control for both aquatic plants is the spring season when maximum growth is occurring. Alligator weed is an emergent aquatic plant that grows as a mat of vegetation interwoven with stems that have become prostrate. The Fort Worth District has not found a more efficient means of controlling water hyacinth than 2,4-dichlorophenoxy. The most important natural factors that appear to affect flea beetle populations are climatic in nature. Biological control for water hyacinth is still in a developmental stage and not available.
