Applying a pesticide at a rate higher than the label rate is considered:

Applying a pesticide at a rate higher than the label rate is considered illegal because pesticide labels are designed to ensure safety for humans, wildlife, and the environment. These labels specify the maximum amount of pesticide that can be used effectively without causing harm or degrading the product's performance. Exceeding these rates not only poses risks to safety and efficacy but also violates regulations set by governing bodies like the Environmental Protection Agency (EPA).

The legal requirements surrounding pesticide application are strict to protect public health and the environment. Therefore, following label instructions is a requirement, and noncompliance can lead to legal consequences, including fines or loss of applicator licenses.