ILLINOIS TURF PESTICIDE COMPREHENSIVE EXAMS
2025/2026 QUESTIONS AND SOLUTIONS GRADED A+
✔✔Dollar spot - ✔✔circular brown to straw-colored sunken spots about the size of a
silver dollar; may be mistaken for brownpatch except for lesions on leaf blades of live
plants near border of patch
✔✔Fairy ring - ✔✔What disease has the following characteristics: circular bands of
dark-green, fast-growing turf that are often accompanied by mushrooms or puffballs?
✔✔pink snow mold - ✔✔during wet conditions this disease exhibits a white to pinkish
cover of mycelia, the mycelia are usually
✔✔Gray leaf spot - ✔✔primarily affects St. Augustinegrass; likes moisture, warm
weather, and shade; roundish tan colored lesions with brown or purplish borders of leaf
blades; leaves may wither and die
✔✔Helminthosporium disease - ✔✔Affects kentucky bluegrass, fescue, perinnial
ryegrass, and bermuda
melting out, leaf spot, crown and root rot
✔✔Pythium blight - ✔✔Round to irregular, dark, water soaked, greasy or slimy, sunken
patches of matted grass 6 to 12 inches wide. Develops rapidly in hot or cold very wet
calm weather
✔✔Spring dead spot - ✔✔Bermudagrass
✔✔Nematodes - ✔✔A microscopic, wormlike animal that can be parasitic on plants
✔✔Fungi - ✔✔cause leaf spots, wilts, dieback, rots and cankers
✔✔Bacteria - ✔✔cause shoot blights, leaf spots, soft roots, and galls
✔✔Viruses - ✔✔cause stunting, discoloration, malformation of plant tissues
no control
✔✔Food source for most nematodes - ✔✔microrganisms
✔✔most common pathogen of diesease of turf and ornamentals - ✔✔fungi
✔✔disadvantages of fungicides - ✔✔high costs, toxicity, and short periods of control
✔✔lawn moths - ✔✔Is another name for sod webworms.
2025/2026 QUESTIONS AND SOLUTIONS GRADED A+
✔✔Dollar spot - ✔✔circular brown to straw-colored sunken spots about the size of a
silver dollar; may be mistaken for brownpatch except for lesions on leaf blades of live
plants near border of patch
✔✔Fairy ring - ✔✔What disease has the following characteristics: circular bands of
dark-green, fast-growing turf that are often accompanied by mushrooms or puffballs?
✔✔pink snow mold - ✔✔during wet conditions this disease exhibits a white to pinkish
cover of mycelia, the mycelia are usually
✔✔Gray leaf spot - ✔✔primarily affects St. Augustinegrass; likes moisture, warm
weather, and shade; roundish tan colored lesions with brown or purplish borders of leaf
blades; leaves may wither and die
✔✔Helminthosporium disease - ✔✔Affects kentucky bluegrass, fescue, perinnial
ryegrass, and bermuda
melting out, leaf spot, crown and root rot
✔✔Pythium blight - ✔✔Round to irregular, dark, water soaked, greasy or slimy, sunken
patches of matted grass 6 to 12 inches wide. Develops rapidly in hot or cold very wet
calm weather
✔✔Spring dead spot - ✔✔Bermudagrass
✔✔Nematodes - ✔✔A microscopic, wormlike animal that can be parasitic on plants
✔✔Fungi - ✔✔cause leaf spots, wilts, dieback, rots and cankers
✔✔Bacteria - ✔✔cause shoot blights, leaf spots, soft roots, and galls
✔✔Viruses - ✔✔cause stunting, discoloration, malformation of plant tissues
no control
✔✔Food source for most nematodes - ✔✔microrganisms
✔✔most common pathogen of diesease of turf and ornamentals - ✔✔fungi
✔✔disadvantages of fungicides - ✔✔high costs, toxicity, and short periods of control
✔✔lawn moths - ✔✔Is another name for sod webworms.
