Page 1 of 174
QAL QUALIFIED APPLICATOR LICENSE
PLANT AGRICULTURE TEST (ALL
CATEGORY) 2025/2026 EXAM TEST BANK
COMPLETE ACCURATE TEST REAL
QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT VERIFIED
SOLUTIONS) LATEST UPDATED VERSION
|GUARANTEED PASS.
1. A tomato grower notices stippling on leaves and fine
webbing. Using a hand lens, she sees tiny, eight-legged
organisms. What is the most appropriate IPM action?
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A) Apply a broad-spectrum insecticide immediately
B) Release predatory mites (Phytoseiulus persimilis) and monitor
thresholds
C) Irrigate overhead to wash off pests
D) Rotate to a non-solanaceous crop next season
Correct Answer: B
Rationale: The description fits spider mites (eight legs,
webbing). Broad-spectrum insecticides (A) kill natural enemies
and flare mites. Overhead irrigation (C) helps but is not a
standalone IPM tactic. Crop rotation (D) is preventative, not
curative. Predatory mites are classic biological control for
spider mites under IPM.
2. A lettuce field has 15% aphid-infested plants. The economic
threshold is 10%. What action should the applicator take?
A) No action – below threshold
B) Spot-treat infested plants with insecticidal soap
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C) Apply a soil-applied neonicotinoid to the whole field
D) Harvest immediately to avoid further damage
Correct Answer: B
Rationale: Threshold exceeded (15% > 10%). Spot treatment
(B) is economical, reduces selection pressure, and conserves
natural enemies. Whole-field treatment (C) is unnecessary and
wasteful. Harvesting (D) premature causes yield loss.
3. According to FIFRA, which statement about a pesticide
labeled “Restricted Use” is TRUE?
A) Anyone can apply it if they read the label
B) It may only be applied by a certified applicator or under
their direct supervision
C) It is banned for all agricultural uses
D) It requires a prescription from a crop advisor
Correct Answer: B
Rationale: FIFRA mandates Restricted Use Pesticides (RUPs) be
applied by certified applicators or those under their direct
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supervision. A and D are false; C is false (RUPs are not
banned, just restricted).
4. You are scouting a walnut orchard in May. You find 8
codling moth eggs per 100 fruit. The action threshold is 5
eggs/100 fruit. What do you do?
A) Delay treatment until larvae appear
B) Apply mating disruption pheromone dispensers
C) Apply a larvicide within 7 days
D) Do nothing – natural enemies will control them
Correct Answer: C
Rationale: Eggs present → hatching soon. Larvicide (C) targets
newly hatched larvae before they enter nuts. Mating
disruption (B) is preventative, not curative for existing eggs.
Delay (A) allows damage.
5. A pesticide label states “Do not apply if wind speed
exceeds 10 mph.” At application time, wind is gusting 8–12
mph. What should you do?
QAL QUALIFIED APPLICATOR LICENSE
PLANT AGRICULTURE TEST (ALL
CATEGORY) 2025/2026 EXAM TEST BANK
COMPLETE ACCURATE TEST REAL
QUESTIONS AND CORRECT DETAILED
ANSWERS (100% CORRECT VERIFIED
SOLUTIONS) LATEST UPDATED VERSION
|GUARANTEED PASS.
1. A tomato grower notices stippling on leaves and fine
webbing. Using a hand lens, she sees tiny, eight-legged
organisms. What is the most appropriate IPM action?
,Page 2 of 174
A) Apply a broad-spectrum insecticide immediately
B) Release predatory mites (Phytoseiulus persimilis) and monitor
thresholds
C) Irrigate overhead to wash off pests
D) Rotate to a non-solanaceous crop next season
Correct Answer: B
Rationale: The description fits spider mites (eight legs,
webbing). Broad-spectrum insecticides (A) kill natural enemies
and flare mites. Overhead irrigation (C) helps but is not a
standalone IPM tactic. Crop rotation (D) is preventative, not
curative. Predatory mites are classic biological control for
spider mites under IPM.
2. A lettuce field has 15% aphid-infested plants. The economic
threshold is 10%. What action should the applicator take?
A) No action – below threshold
B) Spot-treat infested plants with insecticidal soap
,Page 3 of 174
C) Apply a soil-applied neonicotinoid to the whole field
D) Harvest immediately to avoid further damage
Correct Answer: B
Rationale: Threshold exceeded (15% > 10%). Spot treatment
(B) is economical, reduces selection pressure, and conserves
natural enemies. Whole-field treatment (C) is unnecessary and
wasteful. Harvesting (D) premature causes yield loss.
3. According to FIFRA, which statement about a pesticide
labeled “Restricted Use” is TRUE?
A) Anyone can apply it if they read the label
B) It may only be applied by a certified applicator or under
their direct supervision
C) It is banned for all agricultural uses
D) It requires a prescription from a crop advisor
Correct Answer: B
Rationale: FIFRA mandates Restricted Use Pesticides (RUPs) be
applied by certified applicators or those under their direct
, Page 4 of 174
supervision. A and D are false; C is false (RUPs are not
banned, just restricted).
4. You are scouting a walnut orchard in May. You find 8
codling moth eggs per 100 fruit. The action threshold is 5
eggs/100 fruit. What do you do?
A) Delay treatment until larvae appear
B) Apply mating disruption pheromone dispensers
C) Apply a larvicide within 7 days
D) Do nothing – natural enemies will control them
Correct Answer: C
Rationale: Eggs present → hatching soon. Larvicide (C) targets
newly hatched larvae before they enter nuts. Mating
disruption (B) is preventative, not curative for existing eggs.
Delay (A) allows damage.
5. A pesticide label states “Do not apply if wind speed
exceeds 10 mph.” At application time, wind is gusting 8–12
mph. What should you do?
