Which of the following is a commonly cited neonicotinoid insecticide?

• A. Imidacloprid
• B. Thiamethoxam
• C. Clothianidin
• D. Dinotefuran

Answer: (A)

Neonicotinoids are a class of insecticides that target the insect nervous system by binding to nicotinic acetylcholine receptors, causing paralysis and death. They are typically systemic, meaning they move through the plant so insects that feed on treated parts ingest the chemical.

Imidacloprid is one of the most widely used and historically prominent neonics, making it a standard example in many texts and courses. Its extensive use across many crops and its long presence in the agricultural literature give it a position as the commonly cited representative of this chemical class. While the other options—thiamethoxam, clothianidin, and dinotefuran—are also neonics with similar action, imidacloprid is the name that most often comes up as the quintessential example.