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