Georgia Pesticide Applicators Practice Exam

Leaf spot disease is worse in?

1. Cold weather

2. Wet conditions

3. Warm weather

4. Dry conditions

The correct answer is: Warm weather

Leaf spot disease typically thrives in wet conditions because the pathogens responsible for this disease, such as fungi and bacteria, require moisture to proliferate and infect plant tissue. High humidity and wet foliage create an ideal environment for these organisms to spread. While warm weather can contribute to optimal growth conditions for certain pathogens, it is the presence of moisture that is most critical for the development and spread of leaf spot diseases. Therefore, the correct choice accurately reflects the conditions that exacerbate the disease's impact on affected plants. Warm weather might encourage growth, but without the combination of moisture, the conditions necessary for severe leaf spot outbreaks are not established.