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25 Cards in this Set
- Front
- Back
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1. The component of a pesticide formulation that controls the pest is the ___________ingredient. |
Active ingredient |
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2. 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 or False) |
True |
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3. Which of the following is not a concern when handling an emulsifiable concentrate pesticide? a. high phytotoxicity hazard b. may be easily absorbed through human and animal skin c. clogged nozzles and screens |
C. Clogged nozzles and screens. Phytotoxicity- injury to plants |
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4. Which of the following formulations dissolve in water? a. flowables b. water-dispersible granules C. soluble powders |
C. Soluble powder Flowable, fine particles, suspended in water… Dissolved |
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5. Breathing dust is a potential hazard associated with the mixing of wettable powders and soluble powders. (True or False) |
True |
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6. Which of the following pesticide formulations must be mixed with water before being used by the applicator? a. flowables b. granules C. dusts |
A. Flowables |
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7. When added to water, emulsifiable concentrates form emulsions. (True or False) |
True |
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8. Most bait formulations have 50 percent or more active ingredient. (True or False) |
False Most bait formulations contain less than 5% of active gradient |
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9. Extreme care must be exercised when placing baits to make them inaccessible to children, pets, and other nontarget species. (True or False) |
True |
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9. Extreme care must be exercised when placing baits to make them inaccessible to children, pets, and other nontarget species. (True or False) |
True |
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10. All pesticide manufacturers include all the necessary adjuvants, thus you do not need to add them when mixing a spray tank load. (True or False) |
False |
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11. Two or more pesticides that cannot be effectively mixed together are said to be______________ |
Incompatible |
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12. When adding two or more pesticides into a spray tank, always add the liquid formulations first. (True or False) |
False Water, buffer, wettable powder, flowables, soluble powders, surfactants and EC |
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13. Adjuvants are often required when making applications to leaves that are ___________ Or____________ |
Waxy or hairy |
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14. Adjuvants can be added to any pesticide spray mixture. (True or False) |
False |
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Emulsifiable concentrates |
Liquid formulations with the active ingredient, dissolved into one or more petroleum solvents -concern .. high phytotoxicity -May be easily absorbed through skin —-Good for sprayers no plugging or clogging |
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Solutions |
Solutions are formulations with a water, soluble, active ingredient, dissolved in one or more liquids |
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Soluble powder |
Soluble powder - dry powder to mix with water. Disadvantage - hazardous to breathe. |
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Wettable powders |
Active powders are mixed with other powders and mixed with an emulsifier Disadvantage can clog sprayer screens and nozzles. Requires constant mixing. |
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Flowables |
Finally ground solid particles, combined with the active ingredient in it and suspended in a liquid carrier Advantage seldom clogs nozzles |
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Invert emulsion |
Contain water, soluble, pesticides, dispersed in oil carriers Advantage reduce drift and runoff disadvantage. Difficult to get coverage due to large droplet size. |
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Water dispersible, granular‘s or dry flowables |
When mixed with water, they disperse or break apart. Advantage low inhalation hazard. |
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Dusts |
Most are ready to use without further mixing. Low percentage of active ingredient. Easily handled. Disadvantage easy drift. Disadvantage easily moved from one treated surface by the wind or rain. Disadvantage irritant. |
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Granules and pellets |
Ready to use Mostly used to apply chemicals to soil. Advantage low drift. |
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Spray adjuvants |
SPRAY ADJUVANTS A SPRAY ADJUVANT is any product intended to be used with a pesticide as an aid to the application or to the effect of the pesticide, and which is in a package or container separate from the pesticide. Spray adjuvant includes, but is not limited to, acidifiers, compatibility agents, crop oil concentrates, defoaming agents, drift control agents, modified vegetable oil concentrates, nonionic surfactants, organosilicone surfactants, stick-ers, and water conditioning agents |
