In the context of pest resistance, total resistance is equivalent to which term?

In the context of pest resistance, total resistance is equivalent to which term?

• A. Immunity
• B. Resistance
• C. Tolerance
• D. Endurance

Answer: (A)

Total resistance means the pest population is completely unaffected by the pesticide—this is immunity. In this sense, immunity describes a situation where the chemical has no effect at practical doses on the population. Resistance, on the other hand, indicates reduced sensitivity where higher doses or different products may still kill some individuals but overall efficacy drops. Tolerance refers to partial survival or a higher threshold to tolerate the chemical, not complete non-susceptibility. Endurance isn’t a standard term used in pest-pesticide interactions. So, the term that best matches total resistance is immunity.

Total resistance means the pest population is completely unaffected by the pesticide—this is immunity. In this sense, immunity describes a situation where the chemical has no effect at practical doses on the population. Resistance, on the other hand, indicates reduced sensitivity where higher doses or different products may still kill some individuals but overall efficacy drops. Tolerance refers to partial survival or a higher threshold to tolerate the chemical, not complete non-susceptibility. Endurance isn’t a standard term used in pest-pesticide interactions. So, the term that best matches total resistance is immunity.