Citrus and Subtropical Crops
Mineral Nutrition Disorders

Copper deficiency

Copper deficiency is seen here in a young citrus grove. Note the chlorotic leaves on the young trees. It also appears that the grass cover in the grove floor is affected. These affects are due to ammoniation.

Copper deficiency

Copper deficiency in citrus also manifests itself as twig dieback and stem gumming, as seen here. By cutting into the twigs, a grower can diagnose this disorder and send in plants for testing.

Copper deficiency

When citrus are deficient in copper, the fruit may show a scarring or roughened surface as shown here. This symptom is obvious when present.

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This site is maintained by Dr. Laurence Sistrunk, Dept. of Hort. Sci., Texas A&M University