Wyoming Pesticide Applicator Certification Practice Test 2025 - Free Pesticide Applicator Certification Practice Questions and Study Guide

Question: 1 / 605

What is a thickener?

A drift control adjuvant, such as cellulose or gel, used to promote the formation of a greater proportion of large droplets in a spay mixture.

A thickener is an ingredient that is added to a spray mixture, such as a herbicide or insecticide, to promote the formation of larger droplets. This helps the spray to stick to the intended target and reduce drift, which is the movement of the spray to areas outside of the desired location. Option B, C, and D are incorrect as they describe different concepts that are not related to the definition of a thickener. Option B describes an inversion, option C describes a teratogen, and option D describes a weed.

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Weather related event that occurs when cool air is trapped near the surface under a layer of warm air.

A substance or agent able to produce abnormalities or defects in living human or animal embryos or fetuses. Not usually inheritable.

A plant growing where it is not wanted or where it is in direct conflict with the well-being of humans and their activities.

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