Copper deficiency

[Home] Insect and mite pests ] Diseases ] Nematodes ] Environmental Causes ] Nutrient disorders ] [Glossary ]

 

Mottled or patchy yellowing, necrotic spots and droopiness of mature leaves.

 

Deformities, puckering and holes in young leaves.

  

Blackening of root cortical tissue just under the skin.

Diagnostic summary

  • What you see on plants

(any one of the following is indicative; rarely all are present)

- stunted growth.

 

- mottled interveinal chlorosis and drooping of mature leaves.

- small necrotic spots on mid and older leaves, followed by yellowing of the area around the spots, then spreading necrosis.

- young leaves may show various deformities including puckering, missing sections of blade and irregular holes.

- the upper surface of young unexpanded leaves may have a silvery appearance.

- storage roots with patches of brown or black in the subsurface layer, at harvest or after a short period of storage.

  • Occurs in calcareous (alkaline) soils, acidic sandy soils, organic (peaty) soils.

Characteristics and occurrence

Symptoms

Confusion with other symptoms

Diagnostic tests

Management

References

View full fact sheet