Ent 462 Name __KEY___________________3 December 2004Final Exam - 2004Multiple Guess. Select the BEST answer that completes the sentence or answers the question. Remember that your first guess is usually the best! Actually, there are probably only two answers thatmay fit, so you have to decide which of these two is best. Good Luck!C___ 1. Sod webworm larvae are most easily field identified by their relatively small size and: A. stripesrunning across the body: B. stripes running down the body; C. spotted bodies due to the rows ofsclerotized plates; D. Y-shaped mark on the head capsule.A___ 2. When rains returned in September after a long dry summer, a large area of a lawn seemed dead. The turf did not pull up loosely like a carpet, but the grass stems broke off easily and theyappeared to be filled with sawdust. The homeowners assumed that a disease must have alsobeen present, but the pest most likely responsible for this turf death was the: A. billbug; B. sodwebworm; C. white grub; D. armyworm.B___ 3. It’s relatively easy to tell if caterpillar damage to turf is recent and/or likely still going on bylooking for: A. trails in the morning dew; B. green frass; C. hollowed out grass stems; D. noneof these, you HAVE to use a soap flush to find the caterpillars.B___ 4. When using an insecticide to control turf-infesting caterpillars, generally, you are better off: A. using a granular formulation and watering it in immediately after the application; B. using aspray and not irrigating; C. using a spray and watering in with at least 1/2-inch of water; D. spraying in mid day.B___ 5. When using an insect parasitic nematode to control black cutworms, you should look for anematode that has this trait: A. ambusher; B. cruiser; C. cold tolerance; D. chemical tolerance.A___ 6. A superintendent in Ohio complained that he was always getting birds picking up blackcutworms from his greens in early May. You know that this is not likely because: A. blackcutworms can’t overwinter in Ohio; B. the grass is growing too rapidly to show damage in May;C. black cutworm pupae don’t mature until late May; D. the first sign of cutworm activity inOhio is usually April.C___ 7. The fall armyworm female usually lays her eggs: A. in masses attached to grass leaf blades; B. singly on the tips of grass leaf blades; C. in masses on any structure overhanging turf; D. bydropping them singly over the turf at night.B___ 8. Winter grain mites have bright orange legs and dark green bodies, but their most unique featureis: A. extremely long front legs; B. having a dorsal anus!; C. being active only during thewinter; D. having only three pairs of legs as a “larva.”B___ 9. Clover mites are most commonly a pest due to: A. their extensive feeding on turf during thesummer months; B. the way they find secluded places to shed their exoskeletons and lay eggs;C. the damage the do to the turf roots; D. transmitting diseases.Name ________________________A___10. The most obvious damage from bermudagrass mite is: A. witchesbrooming of the shoots; B. ageneral yellowing of the turf; C. purple stripes along the leaf margins; D. sudden death inirregular patches.A___11. Billbugs, cutworms, armyworms, white grubs and mole crickets are: A. significant pests of turfaround the world; B. mainly pests of turf in North Amercia; C. soil-thatch inhabiting pests; D. easily controlled with biological controls.D___12. The most common billbug found in southern and transition zones, infesting turf, is the: A. cornbillbug; B. bluegrass billbug; C. Denver billbug; D. hunting billbug.B___13. Bluegrass billbug damage is most evident (assuming the same levels of infestation) when: A. wehave wetter than normal spring and summer weather; B. drought occurs when new tillers arebeing formed in late May into June; C. fertility levels are low; D. grub insecticides are usedrepeatedly, thereby causing resistance to develop.D___14. A lawn care specialist found what he called “elongate grubs” in someturf. I diagram of it is to the right. From this diagram, you can be surethat the insect is: A. a white grub; B. a billbug larva; C. a crane flylarva; D. a caterpillar of some sort.C___15. Small C-shaped grubs were found in a sport field in mid-June. They hadbrown head capsules but no legs or raster pattern. You know that theymust be: A. masked chafer grubs; B. black turfgrass ataenius larvae; C.billbug larvae; D. crane fly maggots.A___16. Which of the following turfgrass insects does not overwinter as an adult? A. bronze cutworm; B. black turfgrass ataenius; C. annual bluegrass weevil; D. hairy chinch bug.A___17. It is recommended that cutworm control on golf greens should include a pass of the sprayeroutside the green. This is to: A. reduce the risk of fourth and fifth instar cutworms moving ontothe green; B. stop birds from feeding; C. kill eggs; D. knock out other “multiple target” pests.D___18. Preventive control of bluegrass billbugs, hairy chinch bugs, and annual bluegrass weevils arerecommended because: A. these species have multiple generation that usually result insignificant damage late in the season; B. the new insecticides work better as preventives tocontrol these surface/thatch pests; C. curative pesticides rarely work against this spectrum ofpests; D. the adults of these insects are relatively easy to eliminate early in the season, therebygreatly reducing the risk of seeing actual damage later in the season. B___19. The biggest mistaken idea that many people have about moles is that the moles: A. reproducelike rabbits!; B. prefer to feed on white grubs, and eliminating grubs will eliminate moles; C.can choke and die from eating Juicy Fruit chewing gum; D. live in social colonies.D___20. White grubs eat: A. roots!; B. thatch; C. soil; D. all of these together.Name ________________________D___21. The only whitefly stage that can be used to be sure of determine the exact species beinginvolved is the: A. egg; B. crawler; C. scale; D. “pupa” (=last instar nymph)B___22. The annual bluegrass weevil: A. overwinters as larvae; B. feeds primarily on annual bluegrass,hence its name; C. feeds on Kentucky bluegrass and has an annual life cycle, hence its name; D. is found world wide.A___23. White grubs were found damaging some golf turf in September. With ahand lens, the raster pattern to the right was seen. These grubs are: A.Japanese beetles; B. a masked chafer of some sort; C. green June beetlelarvae; D.