Gambusia minnows are an example of which type of mosquito control?

• A. Mechanical.
• B. Chemical.
• C. Biological.
• D. Cultural.

Answer: (C)

Biological control relies on using a living organism to reduce pest populations. Gambusia minnows, or mosquitofish, feed on mosquito larvae in ponds and other standing-water habitats, lowering the number of mosquitoes that reach adulthood. This makes them a biological method of mosquito control, as opposed to mechanical methods (like barriers or traps), chemical methods (insecticides), or cultural methods (habitat management). Using these fish taps into natural predation to chill the larval stage and help curb mosquito numbers, though ecological considerations should be weighed since introducing species can impact native ecosystems.