Oregon Pesticide Laws and Safety Practice Test

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What defines dusts (D) in terms of pesticide formulation?

They have a high concentration of active ingredients

They are liquid solutions of pesticides

They are finely ground, dry mixtures ready to use without mixing

Dusts in pesticide formulation are characterized as finely ground, dry mixtures that are ready to use without any need for further mixing. This formulation allows for easy application directly onto plants, soils, or surfaces where pest control is needed. The physical form of dusts enables the active ingredients to adhere effectively to the target area, maximizing their efficacy against pests.

The description of dusts highlights their convenience and effectiveness in reaching areas where pests might reside. They differ significantly from liquid formulations, which involve solvents and require a different application method. Additionally, they are not characterized as solid granules that require mixing, as those would typically describe granulated formulations rather than dusts. Dusts’ formulation ensures they can be applied as is, providing both ease of use and targeted delivery of the pesticide.

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They are solid granules that require mixing

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