Illinois Pesticide Applicator Exam
Chapter 6: Questions and answers, rated
A+
Other ways to reduce drift - 1. use drift reduction adjuvants which increase droplet size
ll pressure monitoring/ regulating devices
3. use weather meter fro specific data
ase spray application rate. usually means...
Illinois Pesticide Applicator Ex am Chapter 6 : Questions and answers, rated A+ Other ways to reduce drift - ✅✅ 1. use drift reduction adjuvants which increase droplet size 2.install pressure monitoring/ regulating devices 3. use weather me ter fro specific data 4.increase spray application rate. usually means using larger office size in nozzles which increases droplet size 5. use less volatile formulations when available 5. keep up to date with pesticide application technology What are weather factors that influence drift? - ✅✅ 1. Wind speed. Do not spray in winds greater than 10mph. high wind speeds increase drift. spray particles carried greater distance 2. Wind direction. check downwind for sensitive areas. drift occurs downw ind of application. use buffer zones if prescribed by label. 3.temperature and humidity. high temperatures and low humidity increase evaporation. increased evaporation reduces droplet size increasing drift potential. 4. no wind conditions and inversions. s mall droplets remain suspended in air. can move off target long distances. What are equipment factors that influence drift? - ✅✅ 1. Droplet quality/application rate. A nozzle with a larger droplet spectrum( makes fewer smaller droplets) will generally redu ce drift. Orfice size also helps determine droplet size. 2. Automatic Rate controllers. Using a lower pressure will reduce drift potential. Higher pressure results in smaller droplets. Automatic rate controllers increase pressure with increase in speed 3. Distance to the target. Lowering the spray height will reduce drift potential. determines distance spray tables to target. Shorter distance means less exposure to wind. What is particle drift influenced by? - ✅✅ 1. droplet size
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