Symptoms
Pale leaves, partly with necrotic margins or tips. Leaf margins are curled up longitudinally and sometimes twisted, especially when located at shoot tip. Severe deficiency may cause premature defoliation and terminal dieback, followed by enhanced branching below.
The trees bark may become dark and rough. Some varieties ('Nonpareil') show gumming from limbs.
Reasons
Copper deficiency.
A level of 4ppm Cu in leaf tissue is considered as adequate.
Almond - Deformation
Symptoms
Pale leaves, partly with necrotic margins or tips. Leaf margins are curled up longitudinally and sometimes twisted, especially when located at shoot tip. Severe deficiency may cause premature defoliation and terminal dieback, followed by enhanced branching below.
The trees bark may become dark and rough. Some varieties ('Nonpareil') show gumming from limbs.
Reasons
Copper deficiency.
A level of 4ppm Cu in leaf tissue is considered as adequate.
Almond - Deformation
Symptoms
Pale leaves, partly with necrotic margins or tips. Leaf margins are curled up longitudinally and sometimes twisted, especially when located at shoot tip. Severe deficiency may cause premature defoliation and terminal dieback, followed by enhanced branching below.
The trees bark may become dark and rough. Some varieties ('Nonpareil') show gumming from limbs.
Reasons
Copper deficiency.
A level of 4ppm Cu in leaf tissue is considered as adequate.
Almond - Deformation
Symptoms
Pale leaves, partly with necrotic margins or tips. Leaf margins are curled up longitudinally and sometimes twisted, especially when located at shoot tip. Severe deficiency may cause premature defoliation and terminal dieback, followed by enhanced branching below.
The trees bark may become dark and rough. Some varieties ('Nonpareil') show gumming from limbs.
Reasons
Copper deficiency.
A level of 4ppm Cu in leaf tissue is considered as adequate.
Almond - Deformation
Symptoms
Pale leaves, partly with necrotic margins or tips. Leaf margins are curled up longitudinally and sometimes twisted, especially when located at shoot tip. Severe deficiency may cause premature defoliation and terminal dieback, followed by enhanced branching below.
The trees bark may become dark and rough. Some varieties ('Nonpareil') show gumming from limbs.
Reasons
Copper deficiency.
A level of 4ppm Cu in leaf tissue is considered as adequate.
