Which of the following is NOT a factor influencing pesticide effectiveness?

The correct answer is based on understanding the various factors that affect how well a pesticide can do its job. Pesticide effectiveness is primarily influenced by aspects like how and when the pesticide is applied, as well as the biological characteristics of the target pest.

The application method is important because different methods can deliver the pesticide in varying ways, affecting its contact with the target pest. Timing is crucial since it determines whether the pesticide coincides with the pest's vulnerable life stages. The life cycle of the target pest is significant too, as it helps in identifying the best moments for application to maximize control.

The size of the pesticide, however, does not materially impact effectiveness. While pesticide formulations can vary in terms of particle size or droplet size, the phrase "embassy size" seems to be a misunderstanding in terminology; it's likely intended to convey either "emulsifiable concentrate size" or some other characteristic related to formulation. Nevertheless, the critical factor is that the size of the pesticide itself, in a general non-specific context, is not a defined or standard factor influencing its effectiveness. Instead, effectiveness relies more on strategic factors tied to application and biology rather than an arbitrary characteristic like size.