CPA Pesticide Types & Formulations 3

Question 1

A pesticide label states the formulation is an 'EC.' What does this abbreviation stand for?

Accepted Answer

Emulsifiable Concentrate

Answer

EC stands for Emulsifiable Concentrate, a formulation in which the active ingredient is dissolved in an organic solvent with an emulsifier added.

Question 2

Which class of pesticide is used primarily to control fungal diseases on crops?

Accepted Answer

Fungicide

Answer

Fungicides are pesticides that inhibit or kill fungi, protecting crops from diseases like blight, mildew, and rust.

Question 3

What is a key disadvantage of dust (D) formulations compared to liquid sprays?

Accepted Answer

Dusts are highly prone to drift and off-target movement

Answer

The fine particles in dust formulations are very light and easily carried by wind, making precise application difficult and increasing off-target risks.

Question 4

Systemic pesticides are unique because they:

Accepted Answer

Are absorbed and move through the plant's vascular system

Answer

Systemic pesticides are taken up by the plant and translocated through its tissues, making all parts of the plant toxic to pests.

Question 5

Which fumigant application method involves covering treated soil with a tarp after application?

Accepted Answer

Tarped fumigation

Answer

Tarped fumigation retains the gaseous fumigant in the soil by sealing it under a tarp, increasing efficacy and reducing atmospheric escape.

(CPA) Certified Pesticide Applicator Practice Test

(CPA) Certified Pesticide Applicator Practice Test

CPA Pesticide Types & Formulations 3