Download Master Gardener Handbook Quiz on Chapter 9: IPM and Plant

Master Gardener Handbook Quiz on Chapter 9: IPM
and Plant Diagnostics
Questions
1) The IPM goal is to eliminate all pest problems.
True________
False_______
2) Most healthy herbaceous and woody plants can tolerate
_______ percent of defoliation without suffering longterm damage or yield reduction:
a) 5-10
b) 10-20
c) 20-30
d) 30-40
3) To maintain soil quality, it is important to test the soil
every ____ years and adjust pH accordingly.
4) Eastern tent caterpillars should be controlled because
they cause harm to the cherry tree.
True______
False____
5) Least toxic pesticides include (choose the incorrect
answer):
a) B.t. (Bacillus thuringiensis)
b) Horticultural oil
c) Baking soda
d) Rotenone
6) Predatory and parasitic insects are often collectively
referred to as _________________.
7) Predatory mites are widely used as biological control
organisms.
True__________
False_______
Revised for 2012
8) Cultural strategies for reducing pest problems do not
include:
a) inter-planting
b) rotating crops
c) planting on raised beds
d) using fences as barriers to wildlife
9) Selective symptom patterns, such as specific leaf spots
on a plant, indicate abiotic factors at work.
True____
False______
10) If all or a major portion of a tree or shrub dies,
suspect a problem with the ________ or damage to the
vascular system of the trunk.
11) The most distinguishing clue of a fungal disease is the
presence of signs, such as the __________ and fruiting
bodies of the fungus itself.
12) The symptoms of most virus diseases include (choose
the incorrect answer):
a) smaller leaves and blossoms
b) dead sections of leaves
c) distinct portions of leaves missing
d) mottled green or yellow foliage
13) The most important clues in determining insectcaused injury are the type and ________ of the damage.
14) The larval stages of some species of weevils, beetles,
and moths cause plant decline by chewing on roots.
True___________
False________
15) Drought and water-logging produce very different
symptoms in the aboveground portion of a plant.
True______
False______________
(Answers on next page)
Revised for 2012
Master Gardener Handbook Quiz on Chapter 9
Answers
Page in Handbook
1) False (to manage problems at
acceptable levels.)
133
2) c. 20-30 percent
134
3) three
135
4) False (The feeding occurs early enough in the
season for cherry trees to refoliate.)
136
5) d. rotenone (a broad-spectrum pesticide)
136
6) beneficials
136
7) True
138
8) d. using fences (a physical strategy)
140
9) False (may indicate biotic or living factors)
142
10) roots
143
11) mycelium
145
12) c. (Missing leaves are most likely caused
by insect damage.)
146
13) location
146
14) True
147
15) False (They produce many of the same
symptoms.)
148
Revised for 2012