Nutritional Disorders of JackFruit

Magnesium

Yellowing of older leaves between lateral veins on either side of midrib. Chlorosis spreads from margin towards midrib.

Correction Measure:

Soil application of dolomite 5 kg/tree/year.

Boron

Fruits show splitting or cracking with characteristic reddish purple colour. Leaves show chlorosis and brittleness. Terminal shoot poorly developed.

Correction Measure:

Soil application of borax @25 g/tree/year.

Iron

Young leaves show interveinal chlorosis while veins remain green with stunted growth. In severe cases entire leaf becomes yellow.

Correction Measure:

Soil application of FeSO₄ @ 0.5 kg/tree/ year.

Manganese

Leaves become yellow but veins remain green.

Correction Measure:

Soil application of MnSO₄@0.5 kg/tree/year.

IPM for Jackfruit

To know the IPM practices for Jackfruit, click here.

Source: NIPHM;Directorate of Plant Protection, Quarantine & Storage