Diseases Flashcards
1
Q
What does wilting show?
A
The leaf doesn’t have enough water.
2
Q
What does distorted / cupped leaves show?
A
The environment is too hot or too cold.
3
Q
What is chlorosis?
A
When the leaf loses its chlorophyll. Yellow colour put of season.
4
Q
What is necrosis?
A
Tissue death, due to water stress. Turns leaves brown and crinkly.
5
Q
Signs of water stress?
A
Leaves falling earlier than usual. Smaller than normal leaves. Tips and margins of leaves becoming necrotic.
6
Q
Signs of nutrient disorder?
A
Veins remain green, rest of leaf is yellow. Uniform (same all over tree).
