1. Reference to a proprietary product or company is for specific information only and does not imply approval or recommendation of the product by the U.S. Dep. Agric. or the Ohio Agric. Res. and Dev. Ctr. to the exclusion of others that may be suitable.
2. Gerling J. F. , Downs H. W. , Fain D. M. , and Pitts J. T. 1982. Field evaluation of controlled droplet applicator (CDA) for chemical application on wheat. Paper No. 82-1503, Am. Soc. of Agric. Eng., St. Joseph, MI 49085.
3. WSSA-approved computer code from Important Weeds of the World, 3rd. ed., 1983. Available from WSSA, 309 West Clark St., Champaign, IL 61820.
4. Effects of droplet size, spray volume, and dosage on paraquat toxicity;McKinlay;Weed Sci.,1974