SCSC 302 Exam 3 Questions With Complete Solutions

Which of the following make up the vast majority of pathogens in turf: correct answer: Fungi APHIDS secrete honey, attracting wasps, bees and predatory insects. T/F? correct answer: False Select ALL of the following that are 'annual' weeds: correct answer: Annual bluegrass Chickweed Purslane Crabgrass Oxalis Spurge Dallisgrass Dandelion Dichondra Sandbur Clover Rescuegrass Aster Henbit Bermudagrass Goosegrass Adult webworms frequently rest on grass blades with their snouts pointed correct answer: downwards at the ground When a plant/grass has bacterial wilt, the leaves appear? correct answer: curled and necrotic All weeds are inedible. T/F? correct answer: False What is the symptom referred to when new green leaves emerge in the center of an area of brownpatch? correct answer: frog eye Which broadleaf weed is also known as 'pigweed'? correct answer: Which broadleaf weed is also known as 'pigweed'? With Take All Patch you can except grass to recover. T/F? correct answer: False Belowground feeding insect pests in turfgrasses include: correct answer: mealybugs webworms grubs ground pearls billbugs armyworms fire ants mole crickets What is the most serious weed worldwide? correct answer: nutsedge The disease triangle does NOT include: correct answer: Diagnosis Ground Pearls eat grass roots. T/F? correct answer: False Sucking insects include all of the following except? correct answer: cutworms Which is not a chewing insect: correct answer: Chinch Bug Performance traits across 'FAST' growing turfgrasses include: correct answer: Decreased turf production costs. Increased mowing requirements. Increased shade tolerance. Increased thatch problems. Decreased wear tolerance. Decreased fertilization demands You move to the 'cool-arid' turfgrass adaptation zone and want to establish your new home lawn with a cool-season species that's also heat, drought, and salt-tolerant. Your best choice would be __________? correct answer: tall fescue Which of the following 2 fertilizers could be combined in specific proportions to apply 2, 1, and 1.3 lbs. of N, P, and K per 1000 sq. ft. of lawn: correct answer: # 1 & # 2 Match each drought survival strategy with the response in turfgrasses: correct answer: drought avoidance-deeper roots drought escape-vegetative death after seed production drought tolerance-osmotic adjustment Only a small group of grasses are susceptible to nematodes. True or False? correct answer: False Which pest turns into a Junebug? correct answer: grubs Select ALL of the following that are 'cool-season' turfgrass species: correct answer: Creeping Bentgrass KY Bluegrass