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17 Cards in this Set
- Front
- Back
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What to check when inspecting knapsack |
Take lid off. Inspect air vent Check basket filter Depressure system Check trigger filter Check nozzle filter Check hose connections Check straps Check diaphragm |
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Demonstrate knowledge of legal requirements |
COSHH. Applicator (me) has a certificate of competence. (Pesticides ticket). Machine in good working order. PUWER Comply with risk assessment.
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Name the type of nozzles |
Deflector (anvil)E Even spray Cone (hollow) |
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What's a deflector nozzle for? |
Weed killing large areas Medium to course droplets Herbicides |
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What's an even spray nozzle for? |
Weed killing narrow situations or spot spraying. Knapsacks Medium to course droplets.
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What's a cone nozzle for? |
For fungicides and insecticides. Produces a fine mist Smaller droplets = more chance of drift. |
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How does a diaphragm knapsack work? |
Liquud pushed by Compressed air |
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How does nozzle height affect application? |
Increasing the height above the target Increases the application area Which can lead to under application |
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How does ground speed affect application rate? |
The faster nozzle passes over target, The less pesticide applied.
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What's the best wind conditions for spraying |
Force 2. Light breeze. Leaves rustle and u can feel wind on your face. |
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How do you reduce drift? |
Wind speed, direction Use the coursest appropiate droplet quality at all times. Nozzle height. Nozzle selection. Reduce pressure. Direction of spraying |
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Which nozzle for spot treatment? |
Even spray nozzle Spray on move Maintain an even height, pressure & speed. |
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In what order would you change parameters to get water volume closer to 200L per ha |
Nozzle size Pressure (handle) Speed (walking) |
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When do you clean out the knapsack? |
At end of use/day or when changing chemicals |
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How would you clean the knapsack |
Use an appropriate site. Triple rinse with 10% water . Dispose of washings in appropriate manner e.g. over treated area as long as you don't exceed maximum dose. |
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What factors would you consider in environmental risk assessment |
Ground conditions Water courses Buffer zones Drains Wildlife Flowering plants Public |
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How would you store applicator? |
De pressurise Ensure applicator is clean and dry Inspect for damage Store in secure area Under cover & away from sunlight |
