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Direct Injection Kits
If you're interested in putting together your own direct injection package, Pleasure Products Inc., Moorhead, Minn., is selling kits that can be tailored to your spray needs.
Stuart Ystebo, owner of the company, explains that a basic package includes a ground-drive system driven by a sprayer tire. The ground drive system connects to the chemical pump injecting the correct amount of chemical regardless of ground speed.
The kit also includes a tank to hold the chemical, an injection line with check valves and an electric clutch for shutting the chemical pump off on end rows.
The packages Ystebo sells don't have an electronic control unit. "Chemical application rates can be easily altered by manually changing the pump stroke and we have easy-to-follow charts detailing applications rates at various settings."
Chemicals are injected into spray lines on the boom side of the spray pump and chemicals and water mix in the line. Ystebo notes that on some sprayers these lines are too short so you'll need to install a small mix tank for the proper mixing action.
Ystebo sells kits on preassembled panels that mount on the spray rig. He reports that a basic system including the ground drive, electric clutch, pump, 15-gal. chemical tank and filters costs right at $1,200. If you already own some of the equipment, you can buy components separately. Systems are also available for injecting two chemicals at once.
For more information, contact: FARM SHOW Followup, Pleasure Products Mfg., Inc., 2421-16 Ave. So., Moorhead, Minn. 56560 (ph 218 236-1818).
USDA researchers at Ohio State University have been testing direct injection sprayers with pesticides for two years. Dr. T.L. Ladd says researchers have modified a 3-pt. hitch mounted conventional sprayer and tested it head to head against an unmodified conventional sprayer for insects in potatoes. A recent report on the tests states that, "There was no significant difference in spray effectiveness between the two sprayers." The researchers noted that because there's no need for premixing, the operator's exposure to chemicals is reduced. And, because only the amount of chemicals needed is used, direct injection costs less than conventional methods.

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1983 - Volume #7, Issue #3