What percentage of adult pests remains after the initial treatment?

• A. 70%
• B. 50%
• C. 30%
• D. 90%

Answer: (C)

Understanding how much of the adult pest population remains after the initial treatment helps set realistic expectations for the service plan. After the first treatment, about 30% of adult pests typically stay active, meaning roughly 70% were eliminated. This happens because pests hide in cracks and wall voids, some are in life stages not fully affected by the product, and a few may be resistant. That residual population is why follow-up visits are scheduled and ongoing monitoring is needed to complete control. If a much larger portion remained, like around 70% or 90%, the initial impact would be far weaker; about half remaining would indicate only moderate effectiveness. But the common expectation for the first pass is that roughly 30% persist.