Which factor is not included in determining a pesticide's classification category?

The classification category of a pesticide is primarily based on its toxicity, which is often quantified through measurements such as LC50 values and acute oral LD50 values. LC50 (Lethal Concentration 50) refers to the concentration of a substance in air or water that kills 50% of a test population, while LD50 (Lethal Dose 50) is the dose of a substance that kills 50% of a test population when taken orally. These figures are crucial for assessing the potential health risks associated with exposure to the pesticide.

The mode of action, which describes how a pesticide exerts its effect on pests, is also a key factor in determining the classification. Understanding the mode of action helps in categorizing pesticides based on their efficacy and potential resistance issues.

However, the application method, while essential for practical use and safety, does not directly influence a pesticide's classification category. The classification primarily addresses toxicity and effectiveness, rather than how the pesticide will be applied, such as whether it is sprayed, dripped, or used in a granular form. As a result, the application method is not a determining factor in classifying the pesticide itself.