Shoots may be stunted and show some dieback. Older leaves show marginal and interveinal reddening. Leaves may be brittle and thin. Apples may drop prematurely. In the fall as temperatures cool plants are unable to take up Mg and leaves will turn a purple color.
Leaves are pale yellow-green at any stage of development.
Shoots are stunted. Similar to chlorosis. Youngest leaves may be red, bronze or scorched also small, thick or brittle. New shoot tips may form what is called a witches broom. Rosetting of the leaves and dieback of terminal shoots.