Walnut

{Juglans regia}

Boron Deficiency in Walnut

Large, irregular, necrotic patches develop between the veins, particularly on the terminal leaflets. When boron deficiency is severe, the leaves are twisted and the veins are very prominent. Dieback from tips of the shoots results in very evident leafless branches. The nuts do not set properly and a marked reduction in yield can be expected. Walnut trees do not usually need boron supplemenation until they reach bearing age (12 years).

Soil Application (Suggested rates of application)

  Granubor 2 Fertibor
LBS./ACRE 14-28 14-28
KG/HA 15.75 - 31.50 15.75 - 31.50

Foliar Application (Suggested rates of application)

  Solubor
LBS./ACRE 0.5-1
KG/HA 0.5625 - 1.125

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