ACE Pesticide Use & Safety 3

Question 1

Which route of pesticide exposure is generally considered the most significant for pest control operators during routine applications?

Accepted Answer

Dermal absorption

Answer

Dermal absorption accounts for the majority of pesticide exposure for applicators because skin contact with treated surfaces, sprays, and drift is most common during routine pest control work.

Question 2

What does the re-entry interval (REI) specified on a pesticide label require?

Accepted Answer

Workers must wait the specified time before entering treated areas without required PPE

Answer

The REI mandates that workers not enter treated areas without PPE for a defined period to allow pesticide residues to dissipate to safe levels.

Question 3

Which class of insecticides inhibits acetylcholinesterase, causing overstimulation of the nervous system?

Accepted Answer

Organophosphates

Answer

Organophosphates (and carbamates) inhibit acetylcholinesterase, preventing the breakdown of acetylcholine and causing continuous nerve stimulation.

Question 4

When transporting pesticides in a vehicle, which practice is most important for safety?

Accepted Answer

Transporting pesticides separately from food, feed, and people

Answer

Pesticides must always be transported separately from food, feed, clothing, and people to prevent contamination and accidental poisoning.

Question 5

A pesticide's LD50 value is used to measure:

Accepted Answer

The lethal dose required to kill 50% of a test population

Answer

LD50 (lethal dose 50) is the dose of a substance that kills 50% of a test population, expressed in mg of toxicant per kg of body weight.

(ACE) Associate Certified Entomologist Practice Test

(ACE) Associate Certified Entomologist Practice Test

ACE Pesticide Use & Safety 3