Page 1 of 57
PCA NEMATODES 2026 EXAM COMPLETE
(276) CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
PCA
Prepare effectively with this PCA Nematodes exam, designed to
assess essential knowledge of vertebrate pest identification and
control methods. It focuses on rodent and wildlife biology,
behavior, damage recognition, and integrated pest management
strategies. The exam strengthens practical decision-making and
field application skills in pest control operations. Suitable for
pest control and agricultural certification candidates.
Describe why root-knot nematodes may not be found in a
root sample that has nematode galls on it ✓ ✓ ......
ANSWER ....... Dagger and needle nematodes also
produce root galling, so root galls caused by nematodes are
not always caused by root-knot nematodes.
List the common units used to report nematode population
levels from soil and from roots. ✓ ✓ ...... ANSWER .......
Basis of a volume or weight of soil, or weight of plant tissue.
, Page 2 of 57
Describe the factors that influence the efficiency of the
extraction method. ✓ ✓ ...... ANSWER ....... Size of soil
particles, organic matter content and size, shape and
motility of nematode, and capability of the technician
Explain extraction efficiency and its importance in nematode
sampling. ✓ ✓ ...... ANSWER ....... Indicates percentage
of nematodes recovered from a sample to which a known
number of nematodes has been added.
Identify the different extraction methods used by labs. ✓ ✓
...... ANSWER ....... Sieving, Fenwick Can, Elutriator,
Baermann Funnel, Mist, Sugar Flotation, Sugar
Centrifugation, Staining Roots, Greenhouse Bioassay
List the preferred extraction method for nematodes of foliage
or stems ✓ ✓ ...... ANSWER ....... Baermann funnel, mist
chambers
, Page 3 of 57
List the preferred extraction method for dagger nematodes
✓ ✓ ...... ANSWER ....... Baermann funel, Sugar flotation
and Centrifugation
List the preferred extraction method for cyst nematodes ✓
✓ ...... ANSWER ....... Sugar flotation and centrigufation,
Baermann funnel
List factors to consider in conjunction with every nematode
sample ✓ ✓ ...... ANSWER ....... Suitability of sample,
efficiency of extraction method, pathogenicity of nematodes
present, biological and environmental factors that might
influence pathogenicity
Define damage threshold. ✓ ✓ ...... ANSWER ....... Level
at which the pest is expected to damage the crop
Describe the factors that influence the damage threshold for
nematodes. ✓ ✓ ...... ANSWER ....... Temperature at time
of planting
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List the resources for finding out methods for controlling
nematodes in specific crops. ✓ ✓ ...... ANSWER ....... UC
IPM Pest Management Guidelines
Describe the role of the California Nursery Certification
program in preventing the spread of nematodes ✓ ✓ ......
ANSWER ....... Keeps devastating nematodes out of state,
certifies nurseries as having nematode-free stock so that
they may sell in California.
List methods used to prevent the spread of nematodes ✓ ✓
...... ANSWER ....... Quarantine, certified planting
materials, check suspect materials before planting,
nematodes may be present in manure, clean equipment
before moving, avoid contaminated irrigation water
Describe the importance of cleaning equipment to limit the
spread of nematodes ✓ ✓ ...... ANSWER .......
Nematodes spread among fields mostly by dirty equipment.
Cleaning equipment eliminates the possibility of spread.
PCA NEMATODES 2026 EXAM COMPLETE
(276) CURRENT TESTING QUESTIONS AND
DETAILED CORRECT
ANSWERS|GUARANTEED PASS.
PCA
Prepare effectively with this PCA Nematodes exam, designed to
assess essential knowledge of vertebrate pest identification and
control methods. It focuses on rodent and wildlife biology,
behavior, damage recognition, and integrated pest management
strategies. The exam strengthens practical decision-making and
field application skills in pest control operations. Suitable for
pest control and agricultural certification candidates.
Describe why root-knot nematodes may not be found in a
root sample that has nematode galls on it ✓ ✓ ......
ANSWER ....... Dagger and needle nematodes also
produce root galling, so root galls caused by nematodes are
not always caused by root-knot nematodes.
List the common units used to report nematode population
levels from soil and from roots. ✓ ✓ ...... ANSWER .......
Basis of a volume or weight of soil, or weight of plant tissue.
, Page 2 of 57
Describe the factors that influence the efficiency of the
extraction method. ✓ ✓ ...... ANSWER ....... Size of soil
particles, organic matter content and size, shape and
motility of nematode, and capability of the technician
Explain extraction efficiency and its importance in nematode
sampling. ✓ ✓ ...... ANSWER ....... Indicates percentage
of nematodes recovered from a sample to which a known
number of nematodes has been added.
Identify the different extraction methods used by labs. ✓ ✓
...... ANSWER ....... Sieving, Fenwick Can, Elutriator,
Baermann Funnel, Mist, Sugar Flotation, Sugar
Centrifugation, Staining Roots, Greenhouse Bioassay
List the preferred extraction method for nematodes of foliage
or stems ✓ ✓ ...... ANSWER ....... Baermann funnel, mist
chambers
, Page 3 of 57
List the preferred extraction method for dagger nematodes
✓ ✓ ...... ANSWER ....... Baermann funel, Sugar flotation
and Centrifugation
List the preferred extraction method for cyst nematodes ✓
✓ ...... ANSWER ....... Sugar flotation and centrigufation,
Baermann funnel
List factors to consider in conjunction with every nematode
sample ✓ ✓ ...... ANSWER ....... Suitability of sample,
efficiency of extraction method, pathogenicity of nematodes
present, biological and environmental factors that might
influence pathogenicity
Define damage threshold. ✓ ✓ ...... ANSWER ....... Level
at which the pest is expected to damage the crop
Describe the factors that influence the damage threshold for
nematodes. ✓ ✓ ...... ANSWER ....... Temperature at time
of planting
, Page 4 of 57
List the resources for finding out methods for controlling
nematodes in specific crops. ✓ ✓ ...... ANSWER ....... UC
IPM Pest Management Guidelines
Describe the role of the California Nursery Certification
program in preventing the spread of nematodes ✓ ✓ ......
ANSWER ....... Keeps devastating nematodes out of state,
certifies nurseries as having nematode-free stock so that
they may sell in California.
List methods used to prevent the spread of nematodes ✓ ✓
...... ANSWER ....... Quarantine, certified planting
materials, check suspect materials before planting,
nematodes may be present in manure, clean equipment
before moving, avoid contaminated irrigation water
Describe the importance of cleaning equipment to limit the
spread of nematodes ✓ ✓ ...... ANSWER .......
Nematodes spread among fields mostly by dirty equipment.
Cleaning equipment eliminates the possibility of spread.
