PCA PLANT PATHOGENS ACTUAL FINAL EXAM | WITH
COMPLETE QUESTIONS AND ANSWERS | 2025/2026
LATEST UPDATED | 100 % RATED AND VERIFIED
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PCA - Plant Pathogens PCA Exam: Plant Pathogens APEA 3P High Stakes Exam Study G... AA
372 terms 176 terms Teacher 186 terms Te
brobersonkale Preview steph5herring Preview samuel_wachira1 Preview
Practice questions for this set
Learn 1 /7 Study with Learn
Critical parameters used in disease forecasting for fire blight
Choose an answer
wind direction, soil temperature, air
1 2 soil moisture, altitude, cloud cover, soil type
pressure, daylight hours
soil ph, nutrient levels, wind speed, solar temperature, relative humidity, precipitation,
3 4
radiation degree-hours
Don't know?
Terms in this set (176)
Plant disease Abnormal physiological processes caused by a causal pathogen
What is the economical significance of plant disease Losses of yields, crops, inputs, and land
, Pathogen a causal agent of the disease
Disease an abnormal condition that causes issues like declined health or death of a
plant
Sign the presence of a structure of a pathogen (spore, mycelium, or even mold
growth)
Symptom a plant response to a pathogen infection (decline of growth, vigor, or even
death)
What are some abiotic factors that cause plant diseases
What are some biotic factors that cause plant diseases
Obligate parasite Unable to grow outside of a living host (viruses)
Facultative saprophytes prefers living organic matter as a source of nutrition but can adapt to the use of
dead organic matter under certain conditions (phytophthora)
Facultative parasites a pathogen that prefers dead inorganic material, but can also obtain
nourishment from living organic material (bacteria)
Biotrophic Any parasite that cannot survive in a dead host and therefore keeps it alive
Necrotrophic parasites that kill the host cells
Kotch postulates A series or guidelines used to identify the microorganism that causes a specific
disease
What are the three components of plant disease the environment, the host, and the causal agent
triangle
What is the role of each of the component of the All three must be present in order for infection to take place, the environment
disease triangle must favor the causal agent and the host must be susceptible to the causal
agent
COMPLETE QUESTIONS AND ANSWERS | 2025/2026
LATEST UPDATED | 100 % RATED AND VERIFIED
SOLUTIONS | GET AN A+
Leave the first rating
Save
Students also studied
Flashcard sets Study guides
PCA - Plant Pathogens PCA Exam: Plant Pathogens APEA 3P High Stakes Exam Study G... AA
372 terms 176 terms Teacher 186 terms Te
brobersonkale Preview steph5herring Preview samuel_wachira1 Preview
Practice questions for this set
Learn 1 /7 Study with Learn
Critical parameters used in disease forecasting for fire blight
Choose an answer
wind direction, soil temperature, air
1 2 soil moisture, altitude, cloud cover, soil type
pressure, daylight hours
soil ph, nutrient levels, wind speed, solar temperature, relative humidity, precipitation,
3 4
radiation degree-hours
Don't know?
Terms in this set (176)
Plant disease Abnormal physiological processes caused by a causal pathogen
What is the economical significance of plant disease Losses of yields, crops, inputs, and land
, Pathogen a causal agent of the disease
Disease an abnormal condition that causes issues like declined health or death of a
plant
Sign the presence of a structure of a pathogen (spore, mycelium, or even mold
growth)
Symptom a plant response to a pathogen infection (decline of growth, vigor, or even
death)
What are some abiotic factors that cause plant diseases
What are some biotic factors that cause plant diseases
Obligate parasite Unable to grow outside of a living host (viruses)
Facultative saprophytes prefers living organic matter as a source of nutrition but can adapt to the use of
dead organic matter under certain conditions (phytophthora)
Facultative parasites a pathogen that prefers dead inorganic material, but can also obtain
nourishment from living organic material (bacteria)
Biotrophic Any parasite that cannot survive in a dead host and therefore keeps it alive
Necrotrophic parasites that kill the host cells
Kotch postulates A series or guidelines used to identify the microorganism that causes a specific
disease
What are the three components of plant disease the environment, the host, and the causal agent
triangle
What is the role of each of the component of the All three must be present in order for infection to take place, the environment
disease triangle must favor the causal agent and the host must be susceptible to the causal
agent
