Questions and Answers
The component of a pesticide formulation that controls the pest is the ______ ingredient.
active
Careful pesticide selection is important because pesticide formulations vary in their safety to the user, environment, and crop to be treated; efficacy; and cost.
True
Which of the following is not a concern when handling an emulsified concentrate pesticide?
clogged nozzles and screens
Which of the following formulations dissolve in water?
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Breathing in dust is a potential hazard associated with the mixing of wettable powders and soluble powders.
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Which of the following pesticide formulations must be mixed with water before being used by the applicator?
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When added to water, emulsifiable concentrates form emulsions.
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Most bait formulations have 50 percent or more active ingredient.
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Extreme care must be exercised when placing baits to make them inaccessible to children, pets, and other nontarget species.
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All pesticide manufacturers include all the necessary adjuvants, thus you do not need to add them when mixing a spray tank load.
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Which of the following is a true statement about fumigant formulations?
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Two or more pesticides that cannot be effectively mixed together are said to be ______.
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When adding two or more pesticides into a spray tank, always add the liquid formulations first.
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Adjuvants are often required when making applications to leaves that are ______ or ______.
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Adjuvants can be added to any pesticide spray mixture.
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Study Notes
Pesticide Formulations and Handling
- The active ingredient in a pesticide formulation is essential for pest control.
- Pesticide formulations differ in safety, efficacy, environmental impact, and cost, making careful selection crucial.
- Clogged nozzles and screens are not a primary concern when handling emulsified concentrate pesticides.
- Soluble powders are among the formulations that can dissolve in water.
- Mixing wettable powders and soluble powders poses a risk of inhaling dust.
Application and Mixing Guidelines
- Flowable pesticide formulations must be mixed with water prior to application.
- Emulsifiable concentrates create emulsions when mixed with water, enhancing effectiveness.
- Most bait formulations contain less than 50 percent active ingredient.
- Baits must be placed with extreme caution to prevent access by children, pets, or other non-target species.
- Pesticide manufacturers may not include all necessary adjuvants, often requiring additional mixing.
Fumigants and Pesticide Compatibility
- Fumigants are highly regulated, used in soil, enclosed structures, and containers, targeting a wide range of pests and posing significant hazards.
- Pesticides that cannot be effectively mixed are referred to as incompatible.
- When mixing pesticides, begin with solid formulations rather than liquid ones.
- Adjuvants are necessary for applications on waxy or hairy leaves for better adhesion and efficacy.
- Not all pesticide spray mixtures can include adjuvants; some formulations may not require them.
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Description
Test your knowledge with flashcards covering the key concepts from Chapter 3 on pesticide formulations. This quiz includes questions on active ingredients, safety considerations, and handling practices. It's designed for anyone looking to deepen their understanding of pesticide effectiveness and safety.
