Nursery Landscape Chapter 6 Test

Is it not necessary to complete all 14 steps of the plant problems diagnosis process if you are relatively certain you know what the problem is after completing a few of the steps.

• True

• False

Of the thousands of described insect and mite species, a large percentage injure ornamental plants.

• True

• False

All three conditions of the Disease Triangle must be present in order for a biotic disease to infect and develop on its host plant.

• True

• False

Abiotic diseases are infectious, meaning they can be transmitted from one host to another.

• True

• False

Integrated Pest Management (IPM) is the practice of using suitable techniques and methods in as compatible a manner as possible to maintain pest populations at levels below those causing economic injury, and having minimal impact on the environment.

• True

• False

The 14 steps in diagnosing plant problems include all but which of the following:

• Collect information

• Compare with healthy plants

• Examine for signs and symptoms

• Examine foliage, stems, and roots

• All of the above steps in the diagnosis process

Which of the following is not a step in the Integrated Pest Management (IPM) process:

• Identify and understand the host and the pest causing the problem

• Monitor the pest

• Develop the IPM goal

• Identify the appropriate chemical pesticide

• Record and evaluate results

Which of the following will not cause a biotic disease infection:

• Fungi

• Soil pH

• Bacteria

• Phytoplasma

The Disease Triangle includes all but one of the following conditions:

• Insect

• Pathogen

• Susceptible host plant

• Right environmental condition

Some signs of plant disease are:

• Rots, cankers, wilt, dieback, decline

• Chlorosis, necrosis, mosaic/mottling

• Mold, mildew, fungal fruiting bodies, bacterial ooze

• Insect chewing and mining on leaves