How do you determine if a treatment plan was successful?

Monitoring pest populations and activity after applying a treatment plan is essential for determining its success. This involves observing the presence and behavior of pests in the treated area over a specific period. If the pest populations significantly decline or are eliminated, it indicates that the treatment has been effective. Additionally, tracking activity patterns helps assess whether the treatment has disrupted the pest's life cycle or habitat, which contributes to long-term control.

The other options, while relevant in other contexts, do not directly measure the effectiveness of a pest control treatment. Customer satisfaction surveys provide feedback on client experiences but do not necessarily reflect pest populations. Estimating application costs is crucial for budgeting purposes but does not indicate whether the pest control measures worked. Evaluating seasonal trends can help understand pest behaviors over time but doesn’t offer immediate insight into the effectiveness of a specific treatment plan. Therefore, monitoring pest populations and activity is the most direct and reliable method for assessing treatment success.