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PCA PLANT PATHOGENS EXAM NEWEST 2026 COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Crop rotation is important control measure for - ANSWER-soil borne
pathogens with a limited host range
When collecting samples to send to a lab for disease confirmation -
ANSWER-label samples with the crop name soil type and the date
Disease forcasting - ANSWER-all of the above
Field sampling for plant pathogens often focuses on the collection of temp
and moisture data because - ANSWER-these environmental factors
determine when control measures should be used to prevent damage
A diagnostic test used to identify a fungal disease is - ANSWER-culturing on
selected nutrient media
Plant pathogens can be - ANSWER-a factor in integrated pest management
for controlling insects and mites
Powdery mildews are caused by - ANSWER-funguses
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Which of the following is a sign of a disease - ANSWER-white mycelium on
twigs and fruit
Some abiotic factors that cause plant disease are - ANSWER-air pollutants
Which of the following biotic factors contribute to plant diesease - ANSWER-
viroids and viruses
A non obliate parasite - ANSWER-can live on either a living or a dead hosts
Kotch postulates are readily implemented for - ANSWER-fungi
An example of human impact in the development in plant disease is -
ANSWER-the use of preventative fungicide applications
Anthracnose diseases cannot occur without - ANSWER-the presence of the
pathogen in the soil
The use of pathogen free propagated material - ANSWER-only helps if
environmental conditions favorable for disease development are not present
PCA PLANT PATHOGENS EXAM NEWEST 2026 COMPLETE 100
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Crop rotation is important control measure for - ANSWER-soil borne
pathogens with a limited host range
When collecting samples to send to a lab for disease confirmation -
ANSWER-label samples with the crop name soil type and the date
Disease forcasting - ANSWER-all of the above
Field sampling for plant pathogens often focuses on the collection of temp
and moisture data because - ANSWER-these environmental factors
determine when control measures should be used to prevent damage
A diagnostic test used to identify a fungal disease is - ANSWER-culturing on
selected nutrient media
Plant pathogens can be - ANSWER-a factor in integrated pest management
for controlling insects and mites
Powdery mildews are caused by - ANSWER-funguses
, 2|Page
Which of the following is a sign of a disease - ANSWER-white mycelium on
twigs and fruit
Some abiotic factors that cause plant disease are - ANSWER-air pollutants
Which of the following biotic factors contribute to plant diesease - ANSWER-
viroids and viruses
A non obliate parasite - ANSWER-can live on either a living or a dead hosts
Kotch postulates are readily implemented for - ANSWER-fungi
An example of human impact in the development in plant disease is -
ANSWER-the use of preventative fungicide applications
Anthracnose diseases cannot occur without - ANSWER-the presence of the
pathogen in the soil
The use of pathogen free propagated material - ANSWER-only helps if
environmental conditions favorable for disease development are not present
