Browsing by Author/Contributor "Downs, H. Willard"

Now showing items 1-5 of 5

  • Calibrating field sprayers (1997) 

    Casady, William W.; Downs, H. Willard (University of Missouri--Columbia. Extension Division, 1997)
    Pesticides are most cost-effective and perform optimally when applied at labeled rates. Too much pesticide can injure crops; too little can give inadequate or unreliable control. Careful calibration is essential to proper ...

  • Calibrating granular pesticide applicators (2002) 

    Casady, William, W.; Downs, H. Willard; Fishel, Fred (University of Missouri--Columbia. Extension Division, 2002)
    Some pesticides are applied as granules that have been impregnated with a fixed amount of pesticide to eliminate the need for mixing. When used for row crops, most granular pesticides are applied with either a band applicator ...

  • Fugitive dust : nonpoint sources (1999) 

    Ferguson, John H.; Downs, H. Willard; Pfost, Donald L. (University of Missouri--Columbia. Extension Division, 1999)
    Fugitive dust is a relatively new term for an old problem. Simply put, fugitive dust is a type of nonpoint source air pollution -- small airborne particles that do not originate from a specific point such as a gravel quarry ...

  • Large round bales : safety (1998) 

    Baker, David E.; Downs, H. Willard (University of Missouri--Columbia. Extension Division, 1998)
    The key to safe and efficient systems for handling large round bales is an operator who knows the hazards involved and who follows safety practices that can prevent accidents. Operators must be constantly alert for situations ...

  • Spray mix calculations (1997) 

    Casady, William W.; Downs, H. Willard; Fishel, Fred (University of Missouri--Columbia. Extension Division, 1997)
    Liquid pesticide sprayers must apply the proper amount of a carefully mixed spray solution to be effective in controlling weed and insect pests. This publication describes procedures for determining how much pesticide to ...