Which of the following is NOT a general symptom of pesticide poisoning?

Vision impairment is not considered a general symptom of pesticide poisoning, while the other options listed—headache, nausea, and skin irritation—are common symptoms experienced in cases of pesticide exposure.

Pesticide poisoning typically manifests with a variety of non-specific symptoms that can widely affect how the body functions. Headaches and nausea are among the most frequently reported symptoms due to the body's physiological response to toxic substances. Skin irritation often occurs as pesticides can cause direct contact reactions, especially if proper protective equipment is not used.

Vision impairment, while it can occur as a result of specific types of chemical exposure or in cases of severe poisoning, is less commonly recognized as a general symptom compared to the others. This distinction highlights the varying nature of symptoms associated with different types of pesticides and exposures. It’s important for applicators to recognize and respond to these symptoms effectively, prioritizing safety when handling these substances.