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VIRGINIA COMMERCIAL PESTICIDE
APPLICATORS CORE EXAM LATEST 2024/2025
QUESTIONS AND CORRECT ANSWERS(100%
CORRECT VERIFIED ANSWERS)ALREADY
GRADED A+
Explain the difference between key pests, occasional
pests and secondary pests - .....ANSWER ...✔✔ Key
pests are nearly always present and require regular
control. occasional pests are migratory or cyclical and
require intermittent control. secondary pests require
control only under certain conditions, such as the
elimination of a key pest or the absence of a natural
host.
what should you do first if you see damage to a plant,
animal, or valuable product/ - .....ANSWER ...✔✔
identify the cause
what should you do first if you discover a pest that may
need to be controlled? - .....ANSWER ...✔✔ make
sure the pest is actually responsible for the damage.
then accurately identify the pest
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how can pest identification help you develop a good
pest control strategy? - .....ANSWER ...✔✔ it allows
you to determine basic information about the pest,
including its life-cycle and when it is most susceptible to
control measures.
name the 5 basic pest groups - .....ANSWER ...✔✔
weeds, parasites and diseases, mollusks, arthropods,
and vertebrates.
why do weeds present such a challenge to pest
managers? - .....ANSWER ...✔✔ weeds are often
hardy, aggressive, and tolerant of harsh conditions.
many produce large numbers of seeds which can spread
over a wide area and remain dormant for a long time.
how can you tell a monocot from a dicot? - .....ANSWER
...✔✔ monocots (sedges and grasses) have one
cotyledon, parallel leaf veins, flower parts in multiples
of 3 and fibrous roots. Dicots have 2 cotyledons, broad
leaves with netted veination, and flower parts in
multiples of 4 and 5 and usually have taproots.
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name the pathogens that cause most plant and animal
diseases - .....ANSWER ...✔✔ fungi, bacteria,
mycoplasma, and viruses
what are the symptoms of viral plant diseases -
.....ANSWER ...✔✔ stunting, yellow rings on leaves,
wilting, and mosaic patterns
how do plant parasitic nematodes harm plants? -
.....ANSWER ...✔✔ by attacking the roots, stems and
leaves. nematode root feeding interferes with a plants
ability to take up water and nutrients. infected plants
wilt and seem to be suffering from a lack of water or
nutrients.
how do mollusks harm plants? - .....ANSWER ...✔✔ by
feeding on foliage and fruit. mollusks reduce the value
of commercial produce if they feed on harvested plants
and fruit.
what are arthropods? how do they differ from
vertebrates? - .....ANSWER ...✔✔ arthropods are
animals with segmented bodies and jointed
appendages. Arthropods have an external skeleton and
may have specialized appendages such as sucking
VIRGINIA COMMERCIAL PESTICIDE
APPLICATORS CORE EXAM LATEST 2024/2025
QUESTIONS AND CORRECT ANSWERS(100%
CORRECT VERIFIED ANSWERS)ALREADY
GRADED A+
Explain the difference between key pests, occasional
pests and secondary pests - .....ANSWER ...✔✔ Key
pests are nearly always present and require regular
control. occasional pests are migratory or cyclical and
require intermittent control. secondary pests require
control only under certain conditions, such as the
elimination of a key pest or the absence of a natural
host.
what should you do first if you see damage to a plant,
animal, or valuable product/ - .....ANSWER ...✔✔
identify the cause
what should you do first if you discover a pest that may
need to be controlled? - .....ANSWER ...✔✔ make
sure the pest is actually responsible for the damage.
then accurately identify the pest
,2|Page
how can pest identification help you develop a good
pest control strategy? - .....ANSWER ...✔✔ it allows
you to determine basic information about the pest,
including its life-cycle and when it is most susceptible to
control measures.
name the 5 basic pest groups - .....ANSWER ...✔✔
weeds, parasites and diseases, mollusks, arthropods,
and vertebrates.
why do weeds present such a challenge to pest
managers? - .....ANSWER ...✔✔ weeds are often
hardy, aggressive, and tolerant of harsh conditions.
many produce large numbers of seeds which can spread
over a wide area and remain dormant for a long time.
how can you tell a monocot from a dicot? - .....ANSWER
...✔✔ monocots (sedges and grasses) have one
cotyledon, parallel leaf veins, flower parts in multiples
of 3 and fibrous roots. Dicots have 2 cotyledons, broad
leaves with netted veination, and flower parts in
multiples of 4 and 5 and usually have taproots.
, 3|Page
name the pathogens that cause most plant and animal
diseases - .....ANSWER ...✔✔ fungi, bacteria,
mycoplasma, and viruses
what are the symptoms of viral plant diseases -
.....ANSWER ...✔✔ stunting, yellow rings on leaves,
wilting, and mosaic patterns
how do plant parasitic nematodes harm plants? -
.....ANSWER ...✔✔ by attacking the roots, stems and
leaves. nematode root feeding interferes with a plants
ability to take up water and nutrients. infected plants
wilt and seem to be suffering from a lack of water or
nutrients.
how do mollusks harm plants? - .....ANSWER ...✔✔ by
feeding on foliage and fruit. mollusks reduce the value
of commercial produce if they feed on harvested plants
and fruit.
what are arthropods? how do they differ from
vertebrates? - .....ANSWER ...✔✔ arthropods are
animals with segmented bodies and jointed
appendages. Arthropods have an external skeleton and
may have specialized appendages such as sucking
