Associate Certified Entomologist (ACE) Practice Exam

What makes anthranilic diamides unique compared to other pesticide classes?

1. They are mostly derived from plants.

2. They are non-systemic and ineffective.

3. They disrupt insect muscle and nerve function.

4. They have high repellent properties.

The correct answer is: They disrupt insect muscle and nerve function.

Anthranilic diamides are unique compared to other pesticide classes primarily because they specifically target and disrupt the muscle and nerve function of insects. This mechanism of action involves the activation of ryanodine receptors in the insect, leading to abnormal calcium release, which ultimately results in death. This targeted action is not common to many other classes of pesticides, making anthranilic diamides particularly effective against certain pests. The other options do not accurately reflect the characteristics of anthranilic diamides. They are not mainly derived from plants, nor are they non-systemic and ineffective; instead, they can be effective in controlling specific insect populations. Additionally, while some pesticides may possess repellent properties, anthranilic diamides are primarily recognized for their lethal effects rather than being repellent. Understanding the unique mechanism of action of anthranilic diamides highlights their role in integrated pest management strategies.