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This talk was given at the Innovations in Invasive Species Management Conference in Coeur d'Alene, Idaho, held from December 10-12, 2019.
Abstract: Conventional backpack sprayers and nozzles use technology adapted from agricultural spraying systems. In the context of managing natural areas and invasive plants, however, this can be problematic, especially at sites with desirable native plants. Conventional spray systems are designed to be used with high pressure. High pressure produces greater quantities of tiny spray drops. These tiny spray drops can easily move off-target, carried by the wind and even air currents created by the act of spraying. This presentation discusses new results from ongoing tests of the Precision Electronic Dispenser from Green Shoots®. The Precision Electronic Dispenser uses ultra-low pressure (generally under about 10 psi) to deliver an herbicide mixture either as an aqueous foam or as liquid spray drops. The potential benefits of ultra-low pressure include: lowering herbicide usage; reducing mortality of nearby desirable plants; and minimizing exposure of workers and the broader environment.
This talk was given at the Innovations in Invasive Species Management Conference in Coeur d'Alene, Idaho, held from December 10-12, 2019.
Abstract: Conventional backpack sprayers and nozzles use technology adapted from agricultural spraying systems. In the context of managing natural areas and invasive plants, however, this can be problematic, especially at sites with desirable native plants. Conventional spray systems are designed to be used with high pressure. High pressure produces greater quantities of tiny spray drops. These tiny spray drops can easily move off-target, carried by the wind and even air currents created by the act of spraying. This presentation discusses new results from ongoing tests of the Precision Electronic Dispenser from Green Shoots®. The Precision Electronic Dispenser uses ultra-low pressure (generally under about 10 psi) to deliver an herbicide mixture either as an aqueous foam or as liquid spray drops. The potential benefits of ultra-low pressure include: lowering herbicide usage; reducing mortality of nearby desirable plants; and minimizing exposure of workers and the broader environment.
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