PCA Exam Practice Test Questions
And Answers Verified 100% Correct
1. Identification of pests to scientific name is important for all of the following
reasons except:
A. To refer to the list of organisms controlled by a pesticide on a pesticide label
B. To standardize the naming of organisms on a world-wide basis
C. To determine if the pest in question is the same genus as a pest in another area
of the state
D. In order to discern how closely organisms are related to one another - ANSWER
-C. To determine if the pest in question is the same genus as a pest in another area
of the state
2. When sending samples to a lab for testing identification samples should be:
A. Stored in cool water, but not frozen
B. Kept frozen
C. Packed in clean plastic bags and kept cool
D. Dried and packed in clean plastic bags - ANSWER -C. Packed in clean plastic
bags and kept cool
3. Arthropoda is a phylum of invertebrates which includes
A. Insects, spiders, nematodes and snails
B. Insects, symphylans, termites, slugs and snails
C. Insects, centipedes, millipedes and mollusks
D. Insects, spiders, mites and crustaceans - ANSWER -D. Insects, spiders, mites
and crustaceans
4. Which of the following organs is unique to spiders
A. Idiosomas
B. Spinnerets
C. Chelicerae
D. Cuneus - ANSWER -C. Chelicerae
,5. Which of these insects damages plants primarily by feeding on foliage?
A. Lacewings
B. Katydids
C. Caddisflies
D. Springtails - ANSWER -B. Katydids
6. The brown garden snail, helix aspersa, belongs to which phylum?
A. Gastropoda
B. Arthropoda
C. Nemata
D. Mollusca - ANSWER -D. Mollusca
7. Which of the following are typical aboveground symptoms of plant parasitic
nematodes?
A. Defoliation and wig dieback
B. Plant death
C. Foliar and stem wilting, stunting and chlorosis
D. All of the above - ANSWER -C. Foliar and stem wilting, stunting and chlorosis
8. Where do ectoparasitic nematodes live and on what do they feed?
A. They are free-living in the soil and feed externally on plant tissue
B. They live within plant tissues and feed on plant fluids external to plant cells
C. They live within plant tissues and feed on all parts of the plant except xylem and
phloem tissues
D. They live interacellularly within plant tissues - ANSWER -A. They are free-
living in the soil and feed externally on plant tissue
9. Vertebrate burrows such as those of gophers and moles
A. Are distinguished able form one another and can be used to monitor vertebrate
pest presence
B. Are very difficult to distinguish form one another and should not be used to
indicate pest presence
C. Only become visible after the vertebrate pest has caused damage to the crop
, D. Are hidden, difficult to find, and unless the pest can be seen are useless. -
ANSWER -A. Are distinguished able form one another and can be used to monitor
vertebrate pest presence
10. Plant parts used in the identification of monocot seedlings include
characteristics of the
A. Cotyledons, hypocotyls and roots
B. Fruit flowers and roots
C. Cotyledons, inflorescence and leaf blade
D. Leaf blade, auricles and ligules - ANSWER -D. Leaf blade, auricles and ligules
11. Barbs, hooks, awns, and wings are all structures of:
A. Fungal spores that aid in their dispersal
B. Vertebrate pests that aid in their dispersal
C. Weed seeds that aid in dispersal
D. All of the above - ANSWER -C. Weed seeds that aid in dispersal
12. Plant disease will NOT occur
A. In the absence of a vector
B. In very warm, wet conditions
C. If the host is not in a susceptible stage
D. If the host is a transgenic plant - ANSWER -C. If the host is not in a susceptible
stage
33. Which of the following control methods would be most appropriate to control
a plant pathogen that has a limited host range and overwinters in the soil?
A. Spray the crop with insecticides on a calendar basis to kill possible vectors
B. Use crop rotation and destroy alternate hosts
C. Drench the soil with fungicides with the first irrigation of the season
D. All of the above - ANSWER -B. Use crop rotation and destroy alternate hosts
34. How do insects such a aphids and whiteflies play a role in the occurrence of
plant diseases?
A. Most bacterial pathogens require an insect host to complete their life cycle
B. Insects are vectors for some plant diseases, including many plant viruses
And Answers Verified 100% Correct
1. Identification of pests to scientific name is important for all of the following
reasons except:
A. To refer to the list of organisms controlled by a pesticide on a pesticide label
B. To standardize the naming of organisms on a world-wide basis
C. To determine if the pest in question is the same genus as a pest in another area
of the state
D. In order to discern how closely organisms are related to one another - ANSWER
-C. To determine if the pest in question is the same genus as a pest in another area
of the state
2. When sending samples to a lab for testing identification samples should be:
A. Stored in cool water, but not frozen
B. Kept frozen
C. Packed in clean plastic bags and kept cool
D. Dried and packed in clean plastic bags - ANSWER -C. Packed in clean plastic
bags and kept cool
3. Arthropoda is a phylum of invertebrates which includes
A. Insects, spiders, nematodes and snails
B. Insects, symphylans, termites, slugs and snails
C. Insects, centipedes, millipedes and mollusks
D. Insects, spiders, mites and crustaceans - ANSWER -D. Insects, spiders, mites
and crustaceans
4. Which of the following organs is unique to spiders
A. Idiosomas
B. Spinnerets
C. Chelicerae
D. Cuneus - ANSWER -C. Chelicerae
,5. Which of these insects damages plants primarily by feeding on foliage?
A. Lacewings
B. Katydids
C. Caddisflies
D. Springtails - ANSWER -B. Katydids
6. The brown garden snail, helix aspersa, belongs to which phylum?
A. Gastropoda
B. Arthropoda
C. Nemata
D. Mollusca - ANSWER -D. Mollusca
7. Which of the following are typical aboveground symptoms of plant parasitic
nematodes?
A. Defoliation and wig dieback
B. Plant death
C. Foliar and stem wilting, stunting and chlorosis
D. All of the above - ANSWER -C. Foliar and stem wilting, stunting and chlorosis
8. Where do ectoparasitic nematodes live and on what do they feed?
A. They are free-living in the soil and feed externally on plant tissue
B. They live within plant tissues and feed on plant fluids external to plant cells
C. They live within plant tissues and feed on all parts of the plant except xylem and
phloem tissues
D. They live interacellularly within plant tissues - ANSWER -A. They are free-
living in the soil and feed externally on plant tissue
9. Vertebrate burrows such as those of gophers and moles
A. Are distinguished able form one another and can be used to monitor vertebrate
pest presence
B. Are very difficult to distinguish form one another and should not be used to
indicate pest presence
C. Only become visible after the vertebrate pest has caused damage to the crop
, D. Are hidden, difficult to find, and unless the pest can be seen are useless. -
ANSWER -A. Are distinguished able form one another and can be used to monitor
vertebrate pest presence
10. Plant parts used in the identification of monocot seedlings include
characteristics of the
A. Cotyledons, hypocotyls and roots
B. Fruit flowers and roots
C. Cotyledons, inflorescence and leaf blade
D. Leaf blade, auricles and ligules - ANSWER -D. Leaf blade, auricles and ligules
11. Barbs, hooks, awns, and wings are all structures of:
A. Fungal spores that aid in their dispersal
B. Vertebrate pests that aid in their dispersal
C. Weed seeds that aid in dispersal
D. All of the above - ANSWER -C. Weed seeds that aid in dispersal
12. Plant disease will NOT occur
A. In the absence of a vector
B. In very warm, wet conditions
C. If the host is not in a susceptible stage
D. If the host is a transgenic plant - ANSWER -C. If the host is not in a susceptible
stage
33. Which of the following control methods would be most appropriate to control
a plant pathogen that has a limited host range and overwinters in the soil?
A. Spray the crop with insecticides on a calendar basis to kill possible vectors
B. Use crop rotation and destroy alternate hosts
C. Drench the soil with fungicides with the first irrigation of the season
D. All of the above - ANSWER -B. Use crop rotation and destroy alternate hosts
34. How do insects such a aphids and whiteflies play a role in the occurrence of
plant diseases?
A. Most bacterial pathogens require an insect host to complete their life cycle
B. Insects are vectors for some plant diseases, including many plant viruses
