Virginia Commercial Pesticide Applicators CORE Exam NEWEST 2025/2026
COMPLETE 86 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW!!
Explain the difference between key pests, occasional pests and secondary pests - CORRECT
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/ -
CORRECT ANSWER-identify the cause
what should you do first if you discover a pest that may need to be controlled? - CORRECT
ANSWER-make sure the pest is actually responsible for the damage. then accurately identify
the pest
how can pest identification help you develop a good pest control strategy? - CORRECT
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 - CORRECT ANSWER-weeds, parasites and diseases,
mollusks, arthropods, and vertebrates.
why do weeds present such a challenge to pest managers? - CORRECT 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? - CORRECT 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.
name the pathogens that cause most plant and animal diseases - CORRECT ANSWER-fungi,
bacteria, mycoplasma, and viruses
what are the symptoms of viral plant diseases - CORRECT ANSWER-stunting, yellow rings
on leaves, wilting, and mosaic patterns
how do plant parasitic nematodes harm plants? - CORRECT 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? - CORRECT 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? - CORRECT ANSWER-
arthropods are animals with segmented bodies and jointed appendages. Arthropods have an
external skeleton and may have specialized appendages such as sucking tubes, chewing mouth
parts, antennae, and pincers. they have no backbones like vertebrates
what is the difference between gradual and complete metamorphosis? why is it important to
know the life cycle stage of an insect? - CORRECT ANSWER-gradual metamorphosis
includes 3 stages: egg, nymph and adult. there is no pupa stage. complete metamorphosis
includes 4 stages: egg, larva, pupa, and adult. insects that develop via complete metamorphosis
change body form. larvae may not look at all like adults within the same species.it is very
important to recognize the damaging stage for best treatment results. many insect are pests in
one stage but not another. especially larval form.
what are beneficial insects? and why are they important to agriculture? - CORRECT
ANSWER-insects that are pollinators (bees and butterflies) or pest predators (ladybeetles and
COMPLETE 86 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+||BRAND NEW!!
Explain the difference between key pests, occasional pests and secondary pests - CORRECT
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/ -
CORRECT ANSWER-identify the cause
what should you do first if you discover a pest that may need to be controlled? - CORRECT
ANSWER-make sure the pest is actually responsible for the damage. then accurately identify
the pest
how can pest identification help you develop a good pest control strategy? - CORRECT
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 - CORRECT ANSWER-weeds, parasites and diseases,
mollusks, arthropods, and vertebrates.
why do weeds present such a challenge to pest managers? - CORRECT 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? - CORRECT 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.
name the pathogens that cause most plant and animal diseases - CORRECT ANSWER-fungi,
bacteria, mycoplasma, and viruses
what are the symptoms of viral plant diseases - CORRECT ANSWER-stunting, yellow rings
on leaves, wilting, and mosaic patterns
how do plant parasitic nematodes harm plants? - CORRECT 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? - CORRECT 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? - CORRECT ANSWER-
arthropods are animals with segmented bodies and jointed appendages. Arthropods have an
external skeleton and may have specialized appendages such as sucking tubes, chewing mouth
parts, antennae, and pincers. they have no backbones like vertebrates
what is the difference between gradual and complete metamorphosis? why is it important to
know the life cycle stage of an insect? - CORRECT ANSWER-gradual metamorphosis
includes 3 stages: egg, nymph and adult. there is no pupa stage. complete metamorphosis
includes 4 stages: egg, larva, pupa, and adult. insects that develop via complete metamorphosis
change body form. larvae may not look at all like adults within the same species.it is very
important to recognize the damaging stage for best treatment results. many insect are pests in
one stage but not another. especially larval form.
what are beneficial insects? and why are they important to agriculture? - CORRECT
ANSWER-insects that are pollinators (bees and butterflies) or pest predators (ladybeetles and
