infectious diseases in plants DEFINITELY IN EXAM

Question 1

Tobacco Mosaic virus

1. what type of pathogen is it caused by?
2. how does it spread?
3. ways to prevent
4. symptoms
5. what type of plants can it effect

Answer 1

1. what type of pathogen is it caused by? - virus
2. how does it spread?- tools used on different plants
3. ways to prevent - kill the infected plants
4. symptoms- leaves to discolor in a mosaic pattern (lack of chlorophyll, not as much photosynthesis = stunted growth)
5. what type of plants can it affect- tomatoes

Question 2

Rose black spot

1. what type of pathogen is it caused by?
2. how does it spread?
3. ways to prevent
4. symptoms
5. what type of plants can it effect

Answer 2

1. what type of pathogen is it caused by? - fungus
2. how does it spread?- water/wind
3. ways to prevent- spray plants with fungicide, remove the infected leaves and destroy them
4. symptoms - purple/black spots (then the leaves turn yellow and fall off) reduces photosynthesis and leads to stunted growth
5. what type of plants can it effect