Which fungicides are listed for spraying in chemical disease control?

• A. Chlorothalonil and Maneb
• B. Copper sulfate and lime sulfur
• C. Glyphosate and atrazine
• D. Permethrin and Bifenthrin

Answer: (A)

Fungicides that are used for spraying must be labeled for spray applications, so the test focuses on which products are specifically listed for that method of disease control. Chlorothalonil is a broad-spectrum contact fungicide that is routinely labeled for foliar spray programs to protect leaves and shoots from many fungal diseases. Maneb is a protectant fungicide that is also labeled for spray use and provides preemptive, surface-level protection against a range of pathogens. Together, they represent the pair of fungicides identified for spraying in chemical disease control in this context.

Herbicides like glyphosate and atrazine target plants, not fungi, so they aren’t relevant to chemical disease control. Insecticides such as permethrin and bifenthrin target pests, not fungi. Copper sulfate and lime sulfur are fungicides, but the specific listing for spraying in this exam context points to chlorothalonil and maneb as the designated spray-enabled options.