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HLT Licensing Exam

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
The basic building blocks of plants are: a) leaves. b) cells. c) tissues. d) nomenclature nomenclature   show
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show d) nodes are the point of attachment for leaves not buds  
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show a) water AND carbohydrates.  
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All of the following are parts of a leaf except: a) the stomata b) the apical meristem c) the epidermis d) the mesophyll   show
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The root does not serve as: a) an anchor for the plant b) a site of uptake for moisture and nutrients c) a reproductive organ d) a storage site for carbohydrates   show
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show a) pistil  
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show d) a pistil and a stamen  
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show b) a mature, ripened ovary  
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show c) cotyledons and endosperm  
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show d)from germinating seed and adventitious root and shoot pieces  
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show a) to absorb sunlight and convert it to chemical energy  
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show a) cell transformation  
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Which group of plant growth hormones promotes cell enlargement? a) cytokinins b) gibberellins c) auxins d) ethylene   show
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show d) ethylene and abscisic acid  
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Which group of plant hormones are principally responsible for apical dominance? a) cytokinins b) gibberellins c) auxins d) ethylene   show
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show a) cytokinins  
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The three nutrients that are most important for plant fertilization are: a) nitrogen, phosphorus and magnesium b) phosphorus, calcium and ethylene c) sulfur, calcium and nitrogen d) potassium, phosphorus and nitrogen   show
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show c) Poa annua (italicized)  
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show a) the name is the cultivar name  
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If a plant name is followed by "X", you know: a) the name is the cultivar name b) the plant is disease resistant c) the plant is a hybrid d) the plant is rare   show
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A summer annual: a) germinates in the summer and dies the following summer b) germinates in the fall and dies in the summer c) germinates in the spring and dies in the fall d) lives longer than a biennial   show
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show b) drops all of its leaves at the end of the growing season  
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show c) head, thorax and abdomen  
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show d) look on the insect's head  
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show b) egg, nymph and adult  
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Which of the following insects does not undergo complete metamorphosis? a) white pine aphid b) house fly c) carpenter bee d) Japanese beetle   show
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To describe the age (or size) of an insect nymph or larva, you would use the word: a) instar b) generation c) superstar d) molt   show
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Pheromones are substances produced by insects which are used to: a) initiate insect growth and development b) make insecticides that disrupt the molting process c) increase egg laying d) cause a specific reaction in receivers of the pheromone   show
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show b) mycelium  
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The majority of fungi and bacteria: a) are plant pathogenic b) are beneficial c) feed on dead organic matter d) both b and c   show
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show c) through wounds  
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Most plant parasitic nematodes occur: a) in the top 6 to 12 inches of soil b) in aboveground plant parts c) in the top 3 to 6 inches d) in the phloem of infected plants   show
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All of the following aboveground symptoms may accompany root feeding by nematodes except: a) reduced growth of the plant b) chlorosis c) increased fruit production d) wilting   show
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show False  
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show c) as liquids  
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show d) all of the above  
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Control valves should be located: a) between the pump and the pressure regulator b) between the pressure regulator and nozzles c) on top of the tank d) on all hoses   show
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Which of the following usually does not affect nozzle performance? a) nozzle type b) operating pressure c) orifice size d) ambient temperature at time of application   show
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For most fungicide applications, one should use: a) a nozzle with a cone tip b) a flood jet nozzle c) a flat fan nozzle d) the least expensive tips   show
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show c) one fitted with controlled droplet applicators  
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show b) is usually used to treat large turf areas  
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Drop spreaders are better than rotary spreaders because they: a) are less expensive b) are generally more precise and deliver a better pattern c) usually provide a wider swath d) are more difficult to knock out of calibration   show
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To ensure application accuracy, the following steps should be completed: a)calculate target area, determine amount of pesticide to apply, calibrate equipment b)calibrate equipment and calculate target area c)calculate area to be treated and apply pesti   show
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show d) circle  
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Which of the following is not needed to calculate the amount of pesticide needed for an application? a) capacity of the tank (or hopper) b) calibrated output of the application equipment c) the percentage of the pesticide that is inert ingredients   show
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show c) 5 lbs  
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show a) 46 lbs  
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show d) calibrating the equipment  
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show c) nozzle tips  
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show b) shorten hose length  
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show a) 87 gallons  
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Which of the following is not an important factor in calibrating a boom power sprayer? a) nozzle spacing (boom width) b) speed c) pump pressure d) active ingredient content of the pesticide to be applied   show
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When calibrating a power sprayer, pump pressure should be adjusted: a) before turning on the pump b) while the pump is operating and water is flowing through the nozzles c) while verifying the travel speed d) every 10 minutes   show
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show a) weekly  
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The best place to calibrate a drop spreader is: a) the area where the application is to be made b) an area of at least 20 feet in length c) a smooth, flat area d) on turf covered by plastic   show
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To obtain better application uniformity with a drop spreader: a) push the spreader as quickly as possible b) overlap swaths c) operate the spreader during times of low relative humidity d) overlap one application with another at right angles to the fi   show
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show a) collecting distributed particles in a series of shallow, cardboard boxes  
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show a) these spray treatments are usually applied to the point of runoff, therefore calibration is not necessary  
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When using an air-blast sprayer, competent operation is especially critical because: a) the spray pattern is difficult to detect b) these sprayers are expensive and easy to damage c) the extent of coverage is almost impossible to determine d) both a a   show
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Strainers are not necessary on the : a) filler opening b) boom between nozzles c) nozzle body d) supply line to the pump   show
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show a) spray pattern uniformity  
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After spraying, the initial tank rinse should be made at the application site: a)so that leftover pesticide solution is not spilled when returning to the clean-up area b)to reduce the generation and concentration of wastes at the clean-up area   show
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When preparing a sprayer for storage, which of the following is not done? a) tape over nozzle openings b) flush the system with a water/emulsifiable oil solution c) add antifreeze to the tank d) remove, clean and properly store nozzles and screens   show
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Phytotoxicity is usually characterized by: a) shot-hole-type damage to foliage b) abnormal growth, foliar burn, leaf drop and discolored or spotted leaves c) growths resembling cankers d) wet, slimy areas on foliage   show
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Which of the following does not contribute to phytotoxicity? a) over watering after pesticide application b) high air temperatures during and immediately after pesticide application c) mixing different forms of pesticides   show
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Which of the following is most likely to be damaged by a pesticide? a) holly (small tree) b) tall fescue (grass) c) euonymous (shrub) d) boxwood (shrub)   show
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show d) total area treated  
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show c) leaching  
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The best preventative to pesticide runoff on the ground surface is: a) maintained, dense turf b) making applications only on sunny days c) plastic barriers d) using nozzle tips with large orifices   show
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show c) do not apply when air temp is 80-85 deg F and relative humidity is low  
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show b) lowering pump pressure  
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show d) microbial decomposition  
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Microbial decomposition of pesticides is most likely to occur: a) in a warm, moist, well-aerated soil with a pH of 6.5-7.0 b) at night c) in a warm, moist, well-aerated soil with a pH of 4.5-5.0 d) to the most toxic pesticides   show
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Which of the following is not considered a safety precaution when treating on slopes near sensitive areas? a) do not treat if rainfall is imminent b) maintain a buffer zone c) use a larger nozzle opening size d)use the lowest effective rate of applica   show
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Which of the following statements about regular plant inspections is not true? a)they familiarize one with the pests that inhabit particular plants b)they reduce pest infestations by regularly disturbing the pests c)they result in better pest control   show
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Curled, cupped, distorted and discolored leaves indicate feeding by: a) spider mites b) caterpillars c) aphids d) leafminers   show
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show d) both a and c - depositing honeydew and transmitting diseases  
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show b) when 30% of shoots of individual trees are infested  
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show a) a pine bark adelgid infestation  
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show b) crawler  
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The best way to avoid sooty mold growth is to: a) control the pests that produce honeydew b) spray the foliage with a fungicide c) remove and burn affected foliage d) encourage air circulation around plants   show
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A small, oval insect covered with white, fluffy wax found at the base of plant stems is probably a(n): a) euonymous scale b) whitefly nymph c) mealybug d) eriophyid mite   show
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show b) look on the underside of leaves  
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Streaked, silvered foliage results from feeding by: a) mites b) lace bugs c) fungus gnats d) thrips   show
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Fine webbing and bronzed foliage usually indicate an infestation of: a) mealybugs b) spider mites c) bagworms d) bark beetles   show
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Damage by the two-spotted spider mite is most prevalent: a) on conifers b) during hot, humid weather c) during hot, dry weather d) in spring and fall   show
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show d) eriophyid mites  
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Small, black, spiny insects feeding on the underside of azalea leaves probably are: a) lace bug nymphs b) whitefly nymphs c) not going to damage the plant d) plant bug nymphs   show
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Perhaps the best solution to home invasion by boxelder bugs is: a) insectide treatments in the fall b) sealing points of entry c) removal of boxelder trees d) treating exterior cracks and crevices with insecticides   show
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Cicadas damage trees by: a) sucking sap from roots b) feeling on foliage c) making slits in limbs to deposit eggs d) depositing honeydew   show
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A distinguishing feature of beetles is: a) they have leathery wings that meet in a straight line b) they have 6 legs c) they have chewing mouthparts d) the larvae are the most destructive life stage   show
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Elm foliage exhibiting shot holes and skeletonization probably was fed upon by: a) elm leaf borer b) two-lines plant bug c) elm leaf beetle d) elm bark beetle   show
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Trees with branch dieback and cracked, weeping bark have been: a) damaged by egg-laying cicadas b) infested with flatheaded or roundheaded borers c) infested with bark beetles d) attacked by scarabs   show
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Roundheaded borers are: a) caterpillars b) not important pests c) weevil larvae d) beetle larvae   show
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show a) feed in the roots of many trees and shrubs  
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Small, s-shaped galleries under the bark of a loblolly pine indicate: a) attack by the Southern pine sawyer b) a Southern pine beetle infestation c) egg laying by the pine chafer d) the tree will soon die   show
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"Scorching" of black locust foliage is most likely caused by: a) the locust leaf weevil b) Japanese beetles c) the locust leafminer d) a fungus   show
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show a) on foliage  
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Which of the following is not a symptom of attack by Nantucket pine tip moth larvae? a) webbing on needles b) missing shoots and buds c) dead terminals d) oozing exit holes in trunks and large limbs   show
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An adult rhododendron borer may be mistaken for a: a) small wasp b) small moth c) weevil d) caterpillar   show
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show c) leaf skeletonization  
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show d) leafminers  
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show a) their number of prolegs  
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show b) during warm, dry weather  
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Which of the following statements is not true? a) oak galls are usually caused by small wasps b) insect or mite galls can be chemically controlled after gall development c) one gall may contain several insects d) galls are abnormal plant growth   show
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show d) cutworms  
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Cultural controls for slugs include: a) opening up garden and landscape space b) mulching no deeper than 1 inch c) irrigating affected areas daily d) both a and b   show
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To reduce the chance of home invasion by termites one should: a) keep wood mulch at least 1 foot away from the base of a structure b) keep wood mulch moist c) bank mulch around the base of plants d) use pine bark mulch   show
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show b) regular visual inspections  
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show a) white grubs and cutworms  
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show c) in the spring after the soil warms up and mid-July to early August  
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show b)spring treatments give best control  
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An important fact regarding sampling for May and June beetle grubs is: a) they have a high economic threshold (>20/sq.ft) b) stressed turf can tolerate as many grubs as healthy turf c) sampling should be done in the top 3 to 4 inches of soil   show
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show d) Japanese beetle  
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Cleanup of weedy areas may reduce numbers of: a) mole crickets b) Asiatic garden beetles c) masked chafers d) black turfgrass ataenius   show
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Which of the following statements about Oriental beetles is not true? a) adults are major pests of fruit trees b) the grubs are more prevalent in unshaded and closely mown turf c) they have one generation a year d) adults vary in color   show
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show c) black turfgrass ataenius  
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Billbug larvae are similar in appearance to: a) wireworms b) spittlebug larvae c) white grubs d) clover mites   show
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Symptoms of a billbug infestation do not include: a) patchy, dead areas b) a resemblance to dollar spot disease c) easily broken turf stems filled with small droppings d) small mound of soil   show
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Wireworms damage turf by: a) boring into the underground parts of stems b) clipping off grass blades and feeding on them underground c) tunneling beneath the soil surface d) sucking plant juices and transmitting diseases   show
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show a) of a mole cricket infestation  
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To control fire ants, one should: a) treat every two weeks beginning in spring b) broadcast a bait, then follow with individual mound treatments c) dethatch infested turf d) treat individual mounds first, then broadcast a bait   show
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Which of the following does not describe cutworms? a) they are mostly hairless b) they are rarely more than 1 inch long when fully grown c) they can appear greasy d) they ofter coil into a spiral when disturbed   show
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Cutworm damage appears: a) in late fall b) as large, irregular bare areas c) as circular spots of dead grass or sunken spots d) as blotches on individual leaf blades   show
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What common household item can be used to sample for cutworms and sod webworms? a) steak knife b) flashlight c) dishwashing detergent d) leaf rake   show
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show c) damaged turf appears ragged  
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show d) they are moth larvae  
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Yellowish spots on grass stems are caused by: a) mites b) the "spittle" from spittle bugs c) chinch bugs d) billbug adults   show
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The floatation technique of chinchbug sampling includes the use of: a) a large can and water b) soapy water and a wooden frame c) an insecticide drench and a large can d) none of the above   show
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Which of the following does not apply to leafhopper feeding and damage? a) sap is sucked from leaves and stems b) leaves appear blotched and stippled c) reseeding of new lawns may be necessary d) damage to established lawns appears as white patches   show
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show d) proper dethatching  
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The most prevalent biotic factors affecting plants usually are: a) lack of excess water and sunlight b) weeds c) plant pathogens d) not a problem   show
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show b) fungi  
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show c) providing shade  
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The most serious disease of roses is: a) black spot b) cedar-rose rust c) powdery mildew d) Entomosporium (Italics) leaf spot   show
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show d)symptoms 1st appear on old growth of lower branches  
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show a) placing trees in shady areas  
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show b) spot anthracnose  
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The fungus which causes apple scab overwinters primarily: a) on alternate hosts b) on stored apples c) in the bodies of insects d) on dead leaves   show
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Galls on cedar and leaf spots on apple are caused by: a) nematodes b) rust disease c) vascular wilt d) a virus   show
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show d) cool nighttime temperatures, high relative humidity & lush plant growth  
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White growth on leaves and misshapen flowers are symptoms of: a) powdery mildew b) anthracnose c) fireblight d) Phomopsis (Italics) blight   show
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When should fungicides be applied to prevent leaf galls? a) in early fall b) at bud bread c) when spores appear on galls d) any time of year   show
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show d) Phomopsis (italics) blight  
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To avoid root rot, the following is not recommended: a) install healthy plants b) locate plants in a well-drained area c) apply a fungicide drench to the base of the affected plant d) remove diseased plants   show
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show b) during nursery propagation  
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show b) herbaceous ornamentals  
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Damping off is: a) caused by a bacteria b) not controlled by fungicides c) a stem rot affecting ornamental seedlings d) most damaging to woody ornamentals   show
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show a) the beginning of a canker  
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Dogwood canker affects dogwoods in all of the following ways, except: a) causes water sprouts to form b) makes tress more susceptible to borers c) causes decline over the years d) increases susceptibility to breakage   show
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show d) plum and cherry trees  
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Which of the following is not a good method for black knot removal? a)prune 3-4 in. below the knot on small limbs b)on large limbs, remove knots & healthy wood 2-3 in. around the knot c)prune out small infected limbs in summer   show
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show c) remove the tree, including roots  
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show d)lesions appear on leaves  
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Symptoms of Lophodermium needlecast of white pine may be confused with: a) symptoms of pine crown gall b) annual needle fall shed c) symptoms of rust disease d) damage caused by white pine aphids   show
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Most crown gall occur: a) at or below the soil line b) primarily on herbaceous ornamentals c) on young plants d) during cool weather   show
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show c) placing plants in full sun  
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Shot-hole-type symptoms are caused by: a) nematode feeding b) bacterial leaf spots c) leaf galls d) powdery mildew   show
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Spread of fireblight is most rapid: a) during wet weather b) when susceptible plants are in bloom c) in midsummer d) when plants are dormant   show
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The best way to prevent the fireblight bacterium from overwintering is to: a) spray the ground under the tree with a bacteriacide b) treat the roots with a fungicide drench c) remove fallen fruit d) prune out diseased branches   show
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A distinguishing characteristic of bacterial leaf scorch is: a) younger leaves in the lower canopy are affected first b) green leaf tissue is separated from scorched tissue by a yellow halo c) trees recover within one year without treatment   show
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Which of the following does not result from wetwood disease? a) formation of water sprouts b) infection by secondary pathogens c) attack by wood-infesting insects d) bark and cambium damage   show
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Which of the following should not be done to prevent diseases caused by viruses? a) control insects which spread the diseases b) practice good sanitation c) frequently irrigate affected plants d) avoid wounding plants   show
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show a) symptoms vary with host and host age  
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The best way to determine if nematodes are causing a plant problem is to: a) symptoms vary with host and host age b) apply a nematicide and wait to see if plant health improves c) dig up the plant and examine the roots with a hand lens   show
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show b) stippling and spotting of foliage  
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show d) both b) a cultural practice and c) an environmental condition  
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