Ravinteet

K Kalium
Mg Magnesium
B Boori
Cu Kupari
Fe Rauta

Plums - Chlorosis

Oireet
Older leaves turn dark green and then progress to a yellowish green to yellow between the veins. Severely affected plants show leaf scorch along the margin. Leaves may have 'wavy' margins and drop off.

Syyt
Copper deficiency Deficiency is rare in stone fruit because of widespread use of copper sprays to correct diseases such as bacterial cancer.

Copper deficiency pahentaa

  • Organic soils
  • Chalky soils
  • Sandy soils
  • Reclaimed heathland
  • High nitrogen applications

Kupari on tärkeä

  • New growth is vigorous and healthy
  • Pre-mature leaf fall does not occur
  • Yield maybe increased