I. & M. Smith (Pty) Ltd. since 1915


I. & M. Smith (Pty) Ltd.

Grape Sprayers

Electrostatic Sprayers for Grape Growers

Some advantages and benefits:

  • 4 times better coverage on leaves
  • 6 times better coverage on grape clusters
  • 9 times reduction in soil deposition
  • Environmentally friendly
  • Only 8 to 12 gallons per acre
  • Quick payback

How much chemical can you afford to waste?

It may surprise you, but only 15% to 20% of the spray from your conventional or air blast sprayer ends up on the plants. Nearly 60% of the chemical goes wasted onto the ground and less than 3% ends up on the undersides of leaves or other hidden areas. These percentages come from separate studies done at the Universities of Cal-ifornia, Georgia, Illinois and Chile. This means that for every 0 you spend for chemicals, only about worth ends up where you need it.

Use less, get more

With ESS systems many growers reduce their chemical amount by 1/2 and the amount of water by 20 times. But, less water doesn't mean less spray power. Figure 2 shows field test results of ESS at full and half chemical rates on grapes located at the interior of the cluster. Even at 1/2 chemical rate and 1/20th of the water, the ESS system put 3-times more on the interior grapes than the air-blast type conventional sprayer. Reduced chemical dosages work well with growth regulators too. The table grapes shown in Figure 3 had 1/2 rate applications of all chem-icals (including Gibberellic Acid and Ethrel) at only 5 to 8 gallons of water per acre.

Download ESS Grapes Brochure (PDF 408KB)

Download ESS for Grape Growers (PDF 1MB)


Technical report from Chile on electrostatic spray applications on grapes applied with an ESS Grape sprayer (PDF 136KB)

ProGibb report from South Africa on electrostatic spray applications on grapes applied with an ESS Grape sprayer - 2007 (PDF 456KB)

Sitofex trials, with our ESS sprayer - 2007 (PPT 1.3MB)

ProGibb trials, with our ESS sprayer - click on "read only" to access this file. - 2007 (PPT 250KB)

Follow up ProGibb trails on Thompson Seedless Table Grapes - 2008 (PDF 441KB)