Environmental conditions are favorable for disease development. What pest control approach should you use?

• A. Prevention
• B. Eradication
• C. Suppression
• D. Containment

Answer: (A)

When environmental conditions favor disease development, preventing infection from establishing in the first place is the most effective approach. Prevention aims to reduce the inoculum and make conditions less suitable for the pathogen, so you minimize the chance that disease takes hold.

Think of practical steps that cut off the disease before it starts: clean up and remove infected debris so the pathogen has nowhere to survive, rotate crops and use resistant varieties to break the disease cycle, start with clean seeds or transplants, and keep plants healthy to resist infection. Manage irrigation and canopy humidity to reduce leaf wetness, space plants for good airflow, prune to avoid excess moisture, and control weeds that can harbor pathogens. Clean tools and equipment to prevent spreading any inoculum, and monitor fields so you can act quickly if symptoms appear.

Eradication attempts to remove the disease completely from the environment, which is rarely feasible once it’s established. Suppression lowers disease levels after it’s already present but doesn’t prevent establishment, and containment focuses on slowing spread to new areas rather than preventing initial infection. Prevention stays the strongest move when conditions are right for disease.