Question 5015 of 406 · Illinois Pesticide Applicator General Standards Exam

What does a surfactant do?

Exactly one answer is correct.

AMakes the droplets much smaller so they drift farther
BReduces surface tension so the spray spreads and wets the surface
CBinds the product tightly to the soil particles so it resists runoff
DNeutralizes the active ingredient after it lands

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Correct answer to question 5015

B: Reduces surface tension so the spray spreads and wets the surface

Explanation

Surfactants help spray spread on waxy or hairy leaves. They do not kill the pest themselves.