Which pest control approach involves managing food, habitat, water, and land to minimize pests and is typically least harmful to non-target wildlife?

Which pest control approach involves managing food, habitat, water, and land to minimize pests and is typically least harmful to non-target wildlife?

• A. Chemical pesticide application
• B. Biological control
• C. Physical control or source reduction
• D. Quarantine and exclusion

Answer: (C)

This approach focuses on reducing pest pressure by shaping the environment—removing what pests need to survive and reproduce. By managing food sources, eliminating standing water, securing garbage and spills, cleaning up attractants, and modifying habitats to reduce shelter, you prevent pests from thriving in the first place. This is known as source reduction, and because it lowers pest opportunities without introducing toxins or releasing other organisms, it tends to be the least harmful to non-target wildlife. Other methods involve different trade-offs: chemical pesticides add compounds that can affect non-target species; biological control introduces predators or pathogens that may have ecological side effects; quarantine and exclusion prevent new pests from entering but don’t necessarily address existing pest pressure or habitat factors.

This approach focuses on reducing pest pressure by shaping the environment—removing what pests need to survive and reproduce. By managing food sources, eliminating standing water, securing garbage and spills, cleaning up attractants, and modifying habitats to reduce shelter, you prevent pests from thriving in the first place. This is known as source reduction, and because it lowers pest opportunities without introducing toxins or releasing other organisms, it tends to be the least harmful to non-target wildlife.

Other methods involve different trade-offs: chemical pesticides add compounds that can affect non-target species; biological control introduces predators or pathogens that may have ecological side effects; quarantine and exclusion prevent new pests from entering but don’t necessarily address existing pest pressure or habitat factors.