Nursery Landscape General Knowledge Exam

2011 District

What do monocot plants have that make them different from dicot plants?a. Netted veinsb. Seed leavesc. Vascular cambiumd. Parallel veins

• b

Which of the following list the pesticide label signal words in order from least to most toxic?a. Caution, Danger, Warningb. Danger, Caution, Warningc. Caution, Warning, Dangerd. Warning, Caution, Danger

• c

The best way to control a cool season annual, broadleaf weed would be to

a. apply a post-emergence herbicide in mid summer.b. apply a pre-emergence herbicide in April.c. apply a pre-emergence herbicide in Septemberd. apply a post-emergence herbicide in November

• c

Which of the following is an example of a cool season turfgrass?

a. Bermudagrassb. Zoysiac. St. Augustine Grassd. None of the above

• d

The correct way to write the name for Red Sunset red maple is

a. Acer Rubrum Red Sunsetb. Acer rubrum ‘Red Sunset’c. Acer rubrum “Red Sunset”d. None of the above

• b

In the previous example, how many pounds of phosphorus (P2O5) would be applied to the lawn area to get the desired rate of N?

a. 39 poundsb. 48 poundsc. 5 poundsd. 24 pounds

• d

Which of the following would be the least shade tolerant ground cover?

a. ‘Blue Rug’ Juniper b. Pachysandra c. Ajuga d. Wintercreeper

• a

The best pruning approach to re-invigorate an old Forsythia shrub to improve its flower display is

a. trimmingb. shearing c. thinningd. heading

• c

A bacterial disease affecting plants in the rose family is:

a. black spotb. anthracnosec. fire blight d. rust

• c

An example of phototropism is

a. flowering of a plant in response to long day conditions.b. faster growth of cells on the shaded side of a plant stem leading to bending.c. faster growth of cells on the lighted side of a plant stem leading to bending.d. upward bending of shoot tips when a plant is placed in the horizontal position.

• b

Which of the following is a cool season annual broadleaf weed?

a. henbit b. field bindweedc. lambsquartersd. dandelion

• a

Increase in stem length of a dicot plant occurs mostly as a result of

a. expansion of cells produced by the intercalary meristem.b. expansion of cells produced by the apical meristem.c. production of vascular bundles by the cambium.

d. expansion of xylem cells produced by the cambium.

• b

What would be the texture of a soil with 30% clay, 50% sand and 20% silt?

a. clay loamb. sandy clay loamc. loamd. silty clay loam

• b

The most damaging pest of the tree that produces Missouri’s state flower is:

a.Powdery Mildewb.Rustc.Black Spotd.Antrhracnose

• b

Which of the following is least likely to have its flowers injured by a freeze in spring.

a. Nova Zembla rhododendronb. Weigelac. Lilacd. Star Magnolia

• b

A soil borne bacterial disease that attacks fruit trees, roses and Euonymus is

a. phytophthorab. fire blightc. crown galld. verticillium

• c

The term used to describe the flowering of a plant in response to short day conditions is

a. plagiotropismb. narcoperiodismc. photoperiodismd. helioperiodism

• c

Dutch Elm Disease, Oak wilt and Verticillium wilt are all examples of

a. bacterial root rot diseasesb. fungal diseases affecting the vascular systemc. bacterial diseases affecting the vascular systemd. fungal root rot diseases

• b

Increase in the trunk diameter of a tree occurs as a result of division and expansion of cells produced by the:

a. the vascular cambium b. the apical meristemc. the cork cambiumd. the intercallary meristem

• a

Which of the following would be the best choice as a seeding date for establishment of a bermudagrass athletic field?

a. March 15b. May 10c. August 15 d. September 10

• b

The best choice for a time to prune a deciduous shrub such as crape myrtle that blooms in late summer would be

a. Septemberb. Aprilc. Juned. August

• b

Prairiefire, Profusion and Robinson are all disease resistant cultivars of:

a. Spireab. Red Maplec. Crabappled. Hydrangea

• c

Which of the following would be the least shade tolerant turfgrass?

a. Bermudagrassb. Fine fescue c. Tall Fescued. Kentucky Bluegrass

• a

The pH of a soil is a measure of

a. the water holding capacity of the soil.b. the ability of the soil to hold positively charged mineral ions.c. the ability of the soil to hold negatively charged mineral ions.d. the content of hydrogen ions (H+)

• d

The term describing the shape of the leaf in this diagram is

a. pinnately compoundb. palmately compoundc. bi-pinnately compound d. trifoliate

• b

A solubridge (conductivity meter) reading of 4.5 mmho for a potting mix indicates that

a. there is too much nitrogen in the soil.b. the salt level of the soil is in the desirable range.c. the soil needs to be limed.d. the salt level of the soil is too high for most plants.

• d

The LD50 of an insecticide indicatesa. the time required for 50% of the chemical to decompose after spraying.b. the quantity required to kill 50% of insects treated.c. the quantity required to be lethal to 50% of mammals treated..d. the time after spraying when 50% of insects will be killed if they eat treated foliage.

• c

The water in a soil that is available for uptake by plant roots is

a. gravitational waterb. water held in macroporesc. water held in capillary poresd. none of the above

• c

The planting hole for a Balled and Burlapped (B&B) tree should be

a. 1.5 times as deep and 2 times as wide as the soil ball.b. 6 inches deeper and 6 inches wider than the ball.c. 18 inches deep and 2.5 feet in diameter.

d. the depth of the ball and twice the ball diameter.

• d

Which of the following is an example of a warm season annual broadleaf weed?

a. pigweedb. henbit c. field bindweedd. chickweed

• a

The soil ball on a shade tree with a stem caliper of 2 inches should be about

a. 28 inches in diameterb. 24 inches in diameterc. 20 inches in diameterd. 30 inches in diameter

• b

The term “dioecious” means

a. male and female flowers are found on the same individual plant.b. male and female flowers are found on different individual plants. c. male and female flower parts are found in the same flower. d. male and female flowers are present on the same branch.

• b

Which of the following has flat needles that are individually attached to the stem?

a. a Firb. a Sprucec. a Juniperd. a Pine

• a

Which of the following is the correct series of classifications for grading the height of deciduous or evergreen shrubs?

a. 6-12", 12-18", 1 ½ -2", 2-2½' b. 6-12", 12-18", 18-24", 24-30"c. 6-12", 12-18", 18-24", 2-2½' d. 6-9", 9-12", 12-15", 15-18"

• c

A plant that can be pruned severely in February and will still bloom the same season is:

a. Lilacb. Forsythiac. Hybrid tea rosed. Star magnolia

• c

Which species of pine is highly susceptible to a disease caused by a nematode?

a. Scotch pineb. white pinec. Austrian pined. mugo pine

• a

Turf should be mowed often enough so that

a. no more than 2/3 of the grass blade is removed. b. no more than ½ of the grass blade is removed.c. no more than 1/3 of the grass blade is removed.d. no more than 1/8 of the grass blade is removed.

• c

A bank with a slope of 14%,

a. has a rise of 1 foot for every 6 feet of run (horizontal distance).b. has a rise of 1 foot for every 5 feet of run.c. has a rise of 1 feet for every 7 foot of run.

d. has a rise of 1 feet for every 8 foot of run.

• c

At which of the following soil pH values would iron be least available to plant roots.

a. 8.5b. 7.2c. 6.2d. 4.5

• a

The physical properties of plants that are most important as visual elements in a landscape design are:

a. size, scale and line.b. form, texture and color.c. form, scale and balanced. symmetry, color and form

• b

Deciduous azaleas are generally considered more reliably hardy in northern Missouri than most evergreen azaleas. Which of the following is an example of a deciduous azalea?

a. Catawba, such as ‘Nova Zembla’b. Girard hybrid such as ‘Girard Rose’c. Lights series such as ‘Mandarin Lights’ d. ‘P.J.M’ hybrids

• c

When describing a soil, the term “structure” refers to :

a. the relative amounts of sand, silt and clay.b. the distribution of particle sizes.c. the size and arrangement of pores in the soil.d. the amount of water and minerals in the soil.

• c