Ent 462 Name ________________________6 December 2006Final Exam - 2006 (version B)Multiple 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!____ 1. Which of the following pest groups is not commonly found infesting turf around the world? A. white grubs; B. mole crickets; C. billbugs; D. annual bluegrass weevils.____ 2. The main visual difference between the adults of crambid sod webworms and the tropical sodwebworm is: A. shape and form (e.g., held flat or rolled) of the wings; B. antenna length; C.body color; D. stripes on the wings.____ 3. Sod webworm activity in tall turf is often difficult to diagnose. The easiest technique forfinding these pests is to: A. use a water flotation technique; B. inspect the thatch-stem area forfrass pellets; C. do the “tug test”; D. take cup changer samples.____ 4. Which of the following statements IS true for black cutworms? A. Late instar larvae aregregarious; B. Adults lay their eggs singly on grass blade tips; C. Larvae normally overwinter inOhio; D. Small larvae construct silken burrows.____ 5. The common armyworm and fall armyworm larvae both have striped bodies. However, the fallarmyworm can be identified by: A. head markings, they have a white inverted Y-mark; B. theirhabit of lifting their abdomen when disturbed; C. looking for the rough cuticle with a hand lens; D. the distinctive red-brown head capsule.____ 6. When controlling most turf-infesting caterpillars with insecticides, you should: A. use a longlasting systemic; B. use sprays and not irrigate afterward; C. use granular formulations that canget to the thatch where the caterpillars hide; D. syringe the application as soon as possible.____ 7. Typical of eriophyid mites, the bermudagrass mite: A. causes speckles on the leaf blades thatcan cause the plants to turn brown; B. produces little bladder-galls; C. has a plant growthregulator effect that shortens the internodal growth, thereby producing “witchesbrooming’; D. is merely nuisance pest.____ 8. Golfers were complaining that their light colored pants were getting small green and orangespots on them when they would stop and rest on the benches under a tree near a tee. This washappening in May. This is most likely caused by: A. winter grain mites; B. greenbug aphids; C.clover mites; D. armyworm eggs.____ 9. The cranberry girdler (=subterranean sod webworm) is a typical crambid webworm type except:A. the larvae have no distinctive spots; B. the adults have no snout; C. the larvae act more likearmyworrms, marching across the turf and eating it to the thatch; D. the adults fly during the dayand attach eggs to grass stems.Name ____________________________10. Crane flies: A. have giant mosquito-like adults; B. have maggots that eat grass leaves and stems;C. usually emerge in the spring or fall months; D. all of these.____11. Billbug adults are identified to species by: A. their host plants; B. the arrangement and form ofthe pits and ridges found on their pronotum and wing covers; C. size; D. their larvae and rasterpatterns.____12. Which of the following would NOT be a typical bluegrass billbug symptom? A. dead turf,especially during a drought summer; B. looks like dollarspot disease; C. frass-filled stems; D. reddish to purple leaves (early symptoms).____13. The pest most commonly mistaken for “delayed spring green-up” or “spring deadspot” ofbermudagrass is: A. hunting billbug; B. tawny mole cricket; C. bermudagrass mite; D. Banksgrass mite.____14. Most turfgrass entomologists in the New England States recommend that a surface insecticidebe applied for annual bluegrass weevil control when flowering dogwood begins to bloom. Thismethod of application uses: A. plant sequential development; B. phenology; C. IPM samplingand monitoring; D. degree-day accumulations.____15. Southern chinch bugs are often found to be resistant to insecticides. This is most likely due to:A. their unique ability to develop resistance; B. them living in very thick thatch zones; C. thelong seasons that often result in multiple applications of the same insecticide within one season;D. none of these, resistance has never been found in this insect!____16. The most recent research (by my graduate student!) has found that the hairy chinch bugsoverwinter: A. as nymphs in the thatch; B. as eggs inserted into grass stems; C. in wooded areasadjacent to the turf; D. in clumps of “bunch” grasses, especially tall fescue and perennialryegrass.____17. Probably the best cultural control technique to manage the bluegrass billbug, sod webwormsand the hairy chinch bug is: A. use entomopathogenic nematodes; B. overseed or use endophyticgrasses; C. irrigate on a daily basis; D. core aerify and top dress every spring.____18. You got a text message from your cousin that lives in Georgia stating that they must have beenvisited by some unusual vandals. These “vandals” had spit all over the lawn as littlespittlemasses were everywhere in the thatch of their centipedegrass lawn! From thisdescription, you will text message which of the following? A. call the police! B. it’s just aphidsand fermenting honeydew!; C. you have twolined spittlebugs!; D. use a little soap as it willdisinfect the spit and knock out the bubbles!____19. The primary food of moles is: A. grubs; B. cutworms; C. tulip bulbs; D. earthworms.____20. Annual bluegrass weevils and black turfgrass ataenius adults overwinter: A. in thatch; B. in oldearthworm burrows; C. in leaf litter or pine litter adjacent to golf courses; D. in small chambersconstructed in the soil, about two inches deep.Name ____________________________21. Which of the following grub adults are active during the day time? A. Japanese beetles andgreen June beetles; B. European chafers and Asiatic garden beetles; C. northern masked chafersand western June beetles; D. all of them!____22. The main predictor of white grub increases and decreases for any given year is: A. mild winters;B. early springs that are a bit dryer than normal; C. length of mild summer temperatures; D. soil moisture in July and early August.____23. The main problem with green June beetle is: A. the grubs are so large that they cause extensivedamage; B. the grubs make mounds and die on the soil surface when exposed to insecticides; C. the adults feed