Virginia Commercial Pesticide Applicators CORE exam
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1. Explain the difference be- Key pests are nearly always present and require regular control.
tween key pests, occasion- occasional pests are migratory or cyclical and require intermittent
al pests and secondary control. secondary pests require control only under certain condi-
pests tions, such as the elimination of a key pest or the absence of a natural
host.
2. what should you do first if identify the cause
you see damage to a plant,
animal, or valuable prod-
uct/
3. what should you do first make sure the pest is actually responsible for the damage. then
if you discover a pest that accurately identify the pest
may need to be controlled?
4. how can pest identification it allows you to determine basic information about the pest, includ-
help you develop a good ing its life-cycle and when it is most susceptible to control measures.
pest control strategy?
5. name the 5 basic pest weeds, parasites and diseases, mollusks, arthropods, and verte-
groups brates.
6. why do weeds present weeds are often hardy, aggressive, and tolerant of harsh conditions.
such a challenge to pest many produce large numbers of seeds which can spread over a wide
managers? area and remain dormant for a long time.
7. how can you tell a monocot monocots (sedges and grasses) have one cotyledon, parallel leaf
from a dicot? 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.
8. fungi, bacteria, mycoplasma, and viruses
, Virginia Commercial Pesticide Applicators CORE exam
Study online at https://quizlet.com/_2amjbz
name the pathogens that
cause most plant and ani-
mal diseases
9. what are the symptoms of stunting, yellow rings on leaves, wilting, and mosaic patterns
viral plant diseases
10. how do plant parasitic ne- by attacking the roots, stems and leaves. nematode root feeding in-
matodes harm plants? terferes 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.
11. how do mollusks harm by feeding on foliage and fruit. mollusks reduce the value of com-
plants? mercial produce if they feed on harvested plants and fruit.
12. what are arthropods? how arthropods are animals with segmented bodies and jointed ap-
do they differ from verte- pendages. Arthropods have an external skeleton and may have spe-
brates? cialized appendages such as sucking tubes, chewing mouth parts,
antennae, and pincers. they have no backbones like vertebrates
13. what is the difference be- gradual metamorphosis includes 3 stages: egg, nymph and adult.
tween gradual and com- there is no pupa stage. complete metamorphosis includes 4 stages:
plete metamorphosis? why egg, larva, pupa, and adult. insects that develop via complete meta-
is it important to know the morphosis change body form. larvae may not look at all like adults
life cycle stage of an insect? within the same species.it is very important to recognize the dam-
aging stage for best treatment results. many insect are pests in one
stage but not another. especially larval form.
14. what are beneficial insects? insects that are pollinators (bees and butterflies) or pest preda-
and why are they impor- tors (ladybeetles and lacewings). with out pollinators many types
tant to agriculture? of plants could not reproduce and beneficial predators feed on
harmful insects, mites, and weeds.
15. how do mites harm plants?
Study online at https://quizlet.com/_2amjbz
1. Explain the difference be- Key pests are nearly always present and require regular control.
tween key pests, occasion- occasional pests are migratory or cyclical and require intermittent
al pests and secondary control. secondary pests require control only under certain condi-
pests tions, such as the elimination of a key pest or the absence of a natural
host.
2. what should you do first if identify the cause
you see damage to a plant,
animal, or valuable prod-
uct/
3. what should you do first make sure the pest is actually responsible for the damage. then
if you discover a pest that accurately identify the pest
may need to be controlled?
4. how can pest identification it allows you to determine basic information about the pest, includ-
help you develop a good ing its life-cycle and when it is most susceptible to control measures.
pest control strategy?
5. name the 5 basic pest weeds, parasites and diseases, mollusks, arthropods, and verte-
groups brates.
6. why do weeds present weeds are often hardy, aggressive, and tolerant of harsh conditions.
such a challenge to pest many produce large numbers of seeds which can spread over a wide
managers? area and remain dormant for a long time.
7. how can you tell a monocot monocots (sedges and grasses) have one cotyledon, parallel leaf
from a dicot? 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.
8. fungi, bacteria, mycoplasma, and viruses
, Virginia Commercial Pesticide Applicators CORE exam
Study online at https://quizlet.com/_2amjbz
name the pathogens that
cause most plant and ani-
mal diseases
9. what are the symptoms of stunting, yellow rings on leaves, wilting, and mosaic patterns
viral plant diseases
10. how do plant parasitic ne- by attacking the roots, stems and leaves. nematode root feeding in-
matodes harm plants? terferes 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.
11. how do mollusks harm by feeding on foliage and fruit. mollusks reduce the value of com-
plants? mercial produce if they feed on harvested plants and fruit.
12. what are arthropods? how arthropods are animals with segmented bodies and jointed ap-
do they differ from verte- pendages. Arthropods have an external skeleton and may have spe-
brates? cialized appendages such as sucking tubes, chewing mouth parts,
antennae, and pincers. they have no backbones like vertebrates
13. what is the difference be- gradual metamorphosis includes 3 stages: egg, nymph and adult.
tween gradual and com- there is no pupa stage. complete metamorphosis includes 4 stages:
plete metamorphosis? why egg, larva, pupa, and adult. insects that develop via complete meta-
is it important to know the morphosis change body form. larvae may not look at all like adults
life cycle stage of an insect? within the same species.it is very important to recognize the dam-
aging stage for best treatment results. many insect are pests in one
stage but not another. especially larval form.
14. what are beneficial insects? insects that are pollinators (bees and butterflies) or pest preda-
and why are they impor- tors (ladybeetles and lacewings). with out pollinators many types
tant to agriculture? of plants could not reproduce and beneficial predators feed on
harmful insects, mites, and weeds.
15. how do mites harm plants?
