Associate Certified Entomologist (ACE) Practice Exam

Which of the following organochlorines is known for its use in agriculture?

1. Aldrin

2. Chlordane

3. Dicofol

4. All of the above

The correct answer is: All of the above

Organochlorines are a class of chemicals that have historically been used in agriculture for pest control. Each of the substances listed is associated with agricultural applications: Aldrin was primarily used as an insecticide to control soil insects and various pests attacking crops. Its effectiveness made it popular among farmers, particularly for its long-lasting residual effect. Chlordane also had significant use in agriculture. This compound was used extensively for termite control and as a pesticide for a variety of agricultural crops, benefiting farmers looking to protect their plants from pests. Dicofol, while not an organochlorine in the classical sense like the others, is derived from DDT and has been used as an acaricide on crops like fruits and vegetables. Its application makes it relevant in discussions of agricultural pest control alongside traditional organochlorines. Since all three compounds have been used in agricultural settings, the correct answer encompasses all these substances, indicating that they each have historical significance within agricultural practices.