Horticulture 20-25

1.

1 point

What is the third step in the diagnostic process?

Compare what you are seeing with what you are reading about in the reference materials.

Evaluate effective management options.

Identify the problem

Evaluate if management efforts are warranted.

2.

1 point

Which is INCORRECT about weed management techniques?

Many common garden weeds will not survive in a frequently mowed lawn.

Few weeds survive routine mowing.

Mowing a naturalized area or lower maintenance area of the yard effective manages the unsightly appearance and fire hazard.

Sprinkler irrigation, wetting the entire soil surface, encourages weed seed germination.

3.

1 point

Which statement best defines a symptom?

Changes in the plant’s growth or appearance in response to damaging factors

What is wrong with a plant

Yellowing of leaves

The presence of an actual organism or direct evidence of the causal factor

4.

1 point

Which is NOT a major source of weed seeds in the home landscape?

Brought in with plant materials

Disseminated from neighboring plants

Allowing weeds in the garden to go to seed

Brought in with manures, compost and other soil amendments

5.

1 point

Which type of metamorphosis is illustrated in the picture? 1. egg 2. Larva 3. Makes a cocoon type thing 4. Then full grown

Gradual or Simple

Gradual or Progressive

Complete

Coleoptera

6.

1 point

Which term refers to fungal thread on the surface of a leaf, stem, flower, or fruit.

Canker

Gall

Mycelium

Fruiting bodies

7.

1 point

Which term refers to herbicides applied to the leaves?

Post-emergent herbicide

Soil incorporated application

Foliar application

Broadcast application

8.

1 point

Which term is a dead area on the bark or stem?

Blight

Necrosis

Canker

Galls

9.

1 point

Which type of larva is illustrated in the picture? No legs small eyes

Caterpillar

Maggot

Grub

Borer

10.

1 point

Which term is a progressive death of shoot, branch or roots starting at the tip?

Blight

Decline

Necrosis

Die back

11.

1 point

What is step 2a in the diagnostic process?

Look at the plant, describing the signs and symptoms.

Read, refer to reference materials describing similar signs and symptoms.

Identify the problem.

Evaluate effective management options.

12.

1 point

Which order (with piercing-sucking mouth parts) is illustrated in the picture?

Coleoptera (beetles)

Orthoptera (grasshoppers, crickets)

Homoptera (aphids, leafhoppers)

Hemiptera (true bugs)

13.

1 point

Which term is a yellowing of leaves?

Chlorosis

Canker

Dieback

Necrosis

14.

1 point

Which is INCORRECT about controlling weeds by cultivation/tilling?

Most common weed control method

Deep tilling can damage crop roots

Effectively eliminates the seed bank (weed seeds) in the soil

Tilling/cultivating may actually propagate many perennial weeds

15.

1 point

Which terms describes herbicides that top kill leaves when sprayed onto the leaves?

Non-selective herbicide

Selective herbicide

Contact spray

Translocated herbicide

16.

1 point

What is the first step in the diagnostic process?

Get a sample

Identify the plant

Look at the plant, describing the signs and symptoms

Identify the problems

17.

1 point

Which is INCORRECT about managing weeds with mulch?

Mulch effectively controls weed seed germination only if maintained at adequate depths.

Mulching is one of the best methods to manage perennial weeds. You Answered Mulching is one of the best methods to manage perennial weeds.

When landscape fabric is used with a wood chip or rock mulch, weed seeds that blow in will germinate above the fabric.

Mulching is a great management tool to prevent weed seed germination from the soil.

18.

1 point

Which insect order (with only one pair of wings) is illustrated? 3 Pairs of legs, Compound eyes with 360 degree vison

Coleoptera (beetles)

Hymenoptera (bees and wasps)

Diptera (flies)

Hemiptera (true bugs)

19.

1 point

Which best describes step 4 in the diagnostic process?

Evaluate effectiveness of management efforts that have been applied

Evaluate what cultural, mechanical, bionatural and pesticides are effective for this pest/disorder

Determine what pesticide to apply

Spray with insecticides or fungicides

20.

1 point

Which term refers to routine weeds found in gardens, lawns or agricultural fields?

Noxious Weeds

Common Weeds

Routine weeds

Garden Weeds