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COMMERCIAL APPLICATORS EXAM
1C 2025 BRAND NEW ACTUAL EXAM
WITH ANSWERS.
Lowering the humidity of stored grains and other food products to
reduce damage from mold is an example of which type of pest
management method - correct answer-physical/environmental
modification
Plant pathogen that causes white mold in soybeans enters the
plant through the soybean - correct answer-flower
Plant pathogen that is dispersed by wind moves by - correct
answer-passive movement
Crop rotation to stop a nematode population from growing and
moving to other areas of a field is what type of management
system - correct answer-containment
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Giberella stalk and ear rot - correct answer-produces a pinkish
mold
Corn smut - correct answer-forms galls that usually appear on the
ear
Corn gray leaf spot - correct answer-fungus produces long, gray
lesions on leaf surfaces
Common rust - correct answer-leaves have dark red blisters
Damping-off in soybeans can be caused by what disease - correct
answer-phytophthora stem and root rot
Alfalfa disease that causes the stem to take on a "shepherd's
crook" - correct answer-anthracnose
Disease transmitted by aphids from an infected plant to a non-
infected plant - correct answer-barley yellow dwarf virus
COMMERCIAL APPLICATORS EXAM
1C 2025 BRAND NEW ACTUAL EXAM
WITH ANSWERS.
Lowering the humidity of stored grains and other food products to
reduce damage from mold is an example of which type of pest
management method - correct answer-physical/environmental
modification
Plant pathogen that causes white mold in soybeans enters the
plant through the soybean - correct answer-flower
Plant pathogen that is dispersed by wind moves by - correct
answer-passive movement
Crop rotation to stop a nematode population from growing and
moving to other areas of a field is what type of management
system - correct answer-containment
, Page | 2
Giberella stalk and ear rot - correct answer-produces a pinkish
mold
Corn smut - correct answer-forms galls that usually appear on the
ear
Corn gray leaf spot - correct answer-fungus produces long, gray
lesions on leaf surfaces
Common rust - correct answer-leaves have dark red blisters
Damping-off in soybeans can be caused by what disease - correct
answer-phytophthora stem and root rot
Alfalfa disease that causes the stem to take on a "shepherd's
crook" - correct answer-anthracnose
Disease transmitted by aphids from an infected plant to a non-
infected plant - correct answer-barley yellow dwarf virus
