ABSTRACT
Herbicides are an important means of woody plant control. Compared to mechanical practices, herbicides usually are less expensive, less damaging to the environment, and often more effective. Herbicide sprays, however, are subject to drift that may damage susceptible crops or valuable vegetation on nearby areas if improperly applied. A variety of herbicides and herbicide combinations are available commercially. It is essential that the user understand the properties and the effects of herbicides to use them safely and effectively. Herbicides commonly used for weed and brush control include 2,4-D, dicamba, bromacil, picloram, hexazinone, triclopyr, arnitrole, and tebuthiuron. Combinations of herbicides such as 2,4-D + triclopyr, 2,4-D + picloram or dicamba. and triclopyr + clopyralid also have been used (Bovey et al., 1984; Weed Science Society of America, 1994).
