Turff test 2

A vertical mower can be used to(A) true the turf surface by removing grain; (B) stimulate new shoot development; (C) remove thatch; (D) all of the above
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A vertical mower can be used to(A) true the turf surface by removing grain; (B) stimulate new shoot development; (C) remove thatch; (D) all of the above
all of the above
The removal of small soil plugs from turf areas, leaving a hole in the sod is called
core aerification
If soil compaction is a problem in a turf area, the best choice is to
aerify
The creation of a non-uniform soil profile with boundaries that restrict water and air movement and root growth is called
layering
Which of the following is not a reason to aerify? To allow movement into the soil of
light
High velocity water injection
causes very little surface disruption
Solid tine aeration, slicing, or spiking are
less disruptive to the surface than coring
A method of aerification used mostly for renovation rather than routine maintenance due to expense and slow operating speeds is
deep tine aerification
Identify this grassy weed: Germinates in early summer; likes warm, moist sites; needs light to germinate; spreads vigorously; leaves of some species may be wavy; tends to blend in fairly well with St. Augustinegrass.
crabgrass
Identify this grassy weed: Likes moisture and can handle compacted soils; prolific yellowish white seedheads; dies in early summer. Often a problem on golf greens.
annual bluegrass
Identify this weed: Deep, thick taproot; leaves and flower stalk contain milk-like juice; single bright yellow flower found on each stalk; fruit borne on "puffballs"; especially noticeable in spring.dandelionIdentify this grassy weed: Darker in color than crabgrass; thrives in high traffic, compacted areas; strong, extensive root system; leaves don't mow well; generally harder to control than crabgrass; germinates in early summer.goosegrassIdentify this weed: Serious weed worldwide; prolific seed producer & underground network of rhizomes and tubers; three sided stems; prefers wet areas; a summertime pest.nutsedgePerennial grass that grows in clumps, but has short, stout rhizomes; about the same texture as St. Augustine; produces unsightly seedheads; tends to grow faster than turfgrasses after mowing; difficult to control.dallisgrassIdentify this broadleaf weed: Stems are soft in spring but become woody in summer and fall; prolific seed producer from many purplish-white flowers; by the time you see woody stems or flowers, it is too late to treat them chemically.asterThis winter annual broadleaf weed has square stems and many small, pink-purple flowers.henbitThis winter annual broadleaf weed has smooth stems but prickly leaves. Exudes milky sap when cut and produces many seeds on "puffballs".annual sowthistleThis perennial warm season broadleaf has a creeping growth habit, kidney shaped leaves, and is well adapted to sun or shade.dichondraThis summer annual broadleaf weed has a deep taproot and forms circular mats up to several feet in diameter which compete well with turf and withstand low mowing. Produces milky sap when cut.spurgePre emergent herbicides in turf should generally be watered in to insure effectivenessTrueThe easiest weeds to control are usuallyannual weedsMost fungal diseases are encouraged by excess moisture.TrueBrownpatch disease in St. Augustinegrass can be identified by examining thethe leaf sheath where it is attached to the stemIn St. Augustinegrass, initial yellow spotting of the leaves progressing to severe chlorotic mottling which is more severe in the shade is an indicator ofSt. Augustinegrass decline virus. Roundish, tan or gray colored lesions with brown or purplish margins on the leaves of St. Augustinegrass leaves are a symptom ofgray leaf spotThe best control for St. Augustinegrass decline virus isplanting a resistant variety of St. AugustinegrassA turf disease that is characterized by red or orange pustules that easily rub off on shoes or mowing equipment isrustA recommended control for slime mold on St Augustinegrass isbrush off spores with a broomNematodesare invisible to the naked eye;A moth is the adult stage of all of the following except:white grubIf you find over 10 ladybird beetles (ladybugs) per square yard you shoulddo nothing because they are beneficial. Chinch bugssuck juices from grassBermudagrass mites(A) are microscopic in size; (B) suck plant juices from leaves and stems; (C) cause an unusual growth pattern; (D) all of the aboveall of the aboveSod webworms and armyworms feed on grassleaves and stemsInsects that tunnel through soil, causing surface disruption, but may not actually feed on grass aremole cricketsThe "flotation technique", where both ends are cut off of a can (such as a coffee can) which is then inserted just into the soil and filled with water, is used to detect the presence ofchinch bugsLacewings, ground beetles, and big-eyed bugs are examples ofbeneficial insectsWhich of the following is the best way to ensure good soil microbial activity?maintain a pH of about 7A natural plant extract or synthetic chemical that stimulates or inhibits plant processes is called abiostimulantCytokinins and humic acidmay help turf in certain situationsThe instructions on a pesticide label are simply suggestions as to how best to use that product.falseWhat does the ground crew at Kyle Field apply to the turf to keep it greener through the fall?green dyeThe "Texas Two Step Method", involving treating with a bait, followed several days later by a contact poison is a method for controllingfire antsThe purpose of integrated pest management (IPM) is toreduce dependence on pesticidesOver 80 % of all herbicides are labeled for turf.falseWhich of the following is true of Bacillus thuringiensis (Bt)?toxic to specific insects only (caterpillars)Which of the following is true of a surfactant?Helps a pesticide penetrate the waxy surface of a leafWhich of the following is true of biological controls such as nematodes, fungi, or bacteria for pest control?pose less danger of impact on environment and water quality than traditional pesticidesThe best way to control dallisgrass in St. Augustinegrass is todig it outThe main problem with "hose-on" sprayers is that they are expensive and complicated.falseRaccoons, skunks, and armadillos often damage turf in an effort to eatwhite grubsTo sample for soil inhabiting insects, which of the following can be applied to bring the insects to the soil surface?Lemon-scented liquid dishwashing detergentEndophytesare beneficial in many casesA good reason to treat for white grubs after irrigation or rainfall isthe moisture brings them closer to the surfaceSignal words such as "Caution" on a pesticide label indicaterelative toxicity to humansSometimes used as a pre emergent weed suppressor and slow release fertilizer.corn gluten mealA treatment that seems to be effective against Take All Patch in St. Augustinegrass isHu-More® or peat moss