Disease ID
What causes powdery mildew?
fungus
What is a pathogen?
living things that cause disease
Regarding cells, where does bacteria grow?
in between cells
What does fungi feed on?
Our raised garden currently has this virus on a cucumber plant
Mosaic
In nature, this is the most common way that plant diseases are spread
Wind
The smallest pathogen but the hardest to eliminate?
virus
This disease is selective and prefers roses.
Black Spot
Commonly found on potatoes and tomatoes
Blight
What plant parts do nematodes found in soil attack?
root system
Blight can be found on this part of a plant
stem or leaves
A pathogen, host and ideal growing environment make up this diagram
Disease triangle
How does bacteria spread? (3)
•Enters plant through natural opening
•Enters plant through wound
•Splashing water
How do fungi reproduce?
spores
What is the definition of plant pathology?
The science of plant pathology is concerned with:
-identifying cause of plant disease
-determining how disease is caused
-quantifying the result of disease = yield loss, disease severity
-controlling disease
Crown rot is caused by excessive
water
Name the 3 pathogens discussed in class
•Bacteria
•Fungi
•Viruses
How does leaf spot disease enter plants?
Stomata
Name a type of plant disease caused by fungi.
rots, blights, spots, cankers, wilts
Often referred to as the "hidden threat"
Root rot
The act or practice of stopping something harmful or unwanted before it occurs
Prevention
Found mostly on citrus, this bacteria causes lesions and leaf drop
Canker
What is the name for leaf spot disease in Philodendron?
red edge disease
Produces small raised powdery spots that resemble metal blisters
Rust
Name a symptom that most plant virus diseases have.
Stunting or other growth inhibition
Distortions of leaves and flowers
Discolored areas or lesions