7A Chapter 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | The hand-held, compressed-air sprayer is used to make residual and, sometimes, contact insecticide applications. It can also be used to apply herbicides around a structure's foundation.
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| Describe how you attain compres air in a compresed air sprayer | show 🗑
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| show | When you squeeze the trigger on the wand, it opens a discharge valve which allows the compressed air to force the spray mix into the hose and wand and out through the nozzle.
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| Explain why it is important to attain the proper pressure when using a compressed-air sprayer. | show 🗑
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| show | Excessive pressure will produce fine spray droplets that may drift outside the target area. Excessive pressure can also cause splashing and splattering onto other surfaces that may be stained by the spray mix.
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| How does low pressure affect the type of spray pattern produced in a compressed-air sprayer? | show 🗑
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| Give examples that show why it is important to consider the formulation and treated surface when using a compressed-air sprayer. | show 🗑
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| show | release the pressure first. so the pressure doesn’t force the spray mix into your face or eyes when you remove the plunger. Most have a pressure relief valve in the neck of the plunger, turn it counterclockwise until you the sound stops.
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| show | The backpack sprayer is an alternative to the compressed-air sprayer for applying pesticides outdoors either to exterior building surfaces or to surfaces adjacent to the structure.
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| show | Dusts are used to control crawling insects such as cockroaches, ants, and silverfish that hide in voids, cracks, and crevices and bees and wasps in cavities.
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| Explain why you only want to produce a fine layer when you apply dusts. | show 🗑
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| show | eye and respiratory protections, combustibility, close windows and doors and shut off fans, don’t apply where they can filter into food or living areas.
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| show | Hand dusters are the most frequently used type of duster. Power dusters are designed for dusting large areas such as attics, crawl spaces, or pipe chases.
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| Describe how power dusters operate. | show 🗑
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| Explain how to operate a bulb or bellows duster -including the proper positioning of the delivery tube when you operate bulb or bellow dusters. | show 🗑
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| Explain how to operate a plunger duster and foot duster? | show 🗑
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| What size droplet is produced by canned aerosols? | show 🗑
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| List the types of applications that can be made using pressurized cans, including canned aerosols and pressurized liquids. | show 🗑
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| Pressurized liquid sprays produce a coarse spray how is this useful? | show 🗑
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| show | Pressurized canned pesticides contain a pesticide formulation and a gas propellant. The gas pushes the pesticide through the nozzle when the valve is opened. The gas rapidly evaporates, leaving the pesticide floating in the air, or on the target surface.
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| show | Advantage
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| Pressurized can pesticides eliminates the risks associated with handling and mixing pesticide concentrate is this an advantage or disadvantage? | show 🗑
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| Pressurized can pesticides eliminates the need for special equipment to buy and maintain is this an advantage or disadvantage? | show 🗑
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| show | Advantage
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| show | Advantage
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| show | Disadvantage
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| Pressurized canned pesticides can be easy to over apply the pesticide, which adds to the cost of use is this an advantage or disadvantage? | show 🗑
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| show | Disadvantage
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| show | Disadvantage
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| Explain why ULD applications can be made only if specifically allowed by the pesticide label. | show 🗑
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| Compare spray particles from ULD applicators and from conventional equipment with respect to size and ability to control structural insect pests. | show 🗑
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| show | ULD spray droplets may not penetrate areas that are not in direct line with the spray outlet. Penetration is primarily dependent on droplet size, speed, velocity of the droplets, air currents where droplets are introduced, and gravity.
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| show | It would mean that the ventilation wasn’t sufficient. Not sure about this one…
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| show | Post entrances with warning signs if required by label or you feel doing so reduce exposure risks. After the treatment thoroughly ventilate the area according to label directions before you allow unprotected individuals to reenter the area.
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| Describe the differences between thermal foggers and cold foggers. | show 🗑
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| show | 25 psi for injection; Pressures of 45 to 75 psi are possible.
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