PCA PLANT PATHOGENS ACTUAL FINAL EXAM | WITH COMPLETE QUESTIONS
AND ANSWERS | 2025/2026 LATEST UPDATED | 100 % RATED AND VERIFIED
SOLUTIONS | GET AN A+
1. Plant pathogens can be: a factor in integrated pest management for
controlling insects and mites
2. Define plant disease?: Abnormal growth and/or dysfunction of a plant,
which can be caused by bacteria, fungi or viruses
3. What are the four types of pathogens?: Viruses, Bacteria, Fungi, and
Parasites.
4. What is the difference between a pathogen and a disease?: A pathogen is
any organism that causes disease.
5. Powdery mildews are caused by?: Funguses
6. What are some abiotic factors that cause plant disease?: Weather, soils,
chemical, or mechanical injuries.
7. What are some biotic factors that cause plant disease?: Fungi, bacteria,
viruses, nematodes, i.e, anything living.
, 8. which of the following is a sign of a disease: white mycelium on twigs and
fruit
9. some abiotic factors that cause plant disease are: air pollutants
10. which of the following biotic factors contribute to plant diesease: viroids
and viruses
11. What does the term facultative refer to?: Capable of existing in varying
environments.
12. Facultative parasites:: An organism that may resort to parasitic activity,
but does not absolutely rely on any host for completion of its life cycle.
13. Obligate parasites:: Must spend at least some of their life cycle in or on a
host.
14. Facultative saprophyte: Prefers living organic matter as a source of
nutrition but can adapt to the use of dead organic matter under certain
conditions.
15. a non obliate parasite: can live on either a living or a dead hosts
AND ANSWERS | 2025/2026 LATEST UPDATED | 100 % RATED AND VERIFIED
SOLUTIONS | GET AN A+
1. Plant pathogens can be: a factor in integrated pest management for
controlling insects and mites
2. Define plant disease?: Abnormal growth and/or dysfunction of a plant,
which can be caused by bacteria, fungi or viruses
3. What are the four types of pathogens?: Viruses, Bacteria, Fungi, and
Parasites.
4. What is the difference between a pathogen and a disease?: A pathogen is
any organism that causes disease.
5. Powdery mildews are caused by?: Funguses
6. What are some abiotic factors that cause plant disease?: Weather, soils,
chemical, or mechanical injuries.
7. What are some biotic factors that cause plant disease?: Fungi, bacteria,
viruses, nematodes, i.e, anything living.
, 8. which of the following is a sign of a disease: white mycelium on twigs and
fruit
9. some abiotic factors that cause plant disease are: air pollutants
10. which of the following biotic factors contribute to plant diesease: viroids
and viruses
11. What does the term facultative refer to?: Capable of existing in varying
environments.
12. Facultative parasites:: An organism that may resort to parasitic activity,
but does not absolutely rely on any host for completion of its life cycle.
13. Obligate parasites:: Must spend at least some of their life cycle in or on a
host.
14. Facultative saprophyte: Prefers living organic matter as a source of
nutrition but can adapt to the use of dead organic matter under certain
conditions.
15. a non obliate parasite: can live on either a living or a dead hosts
