Zinc deficiency
Nutritional Disorder
Symptoms
Growth restricted. The leaves show interveinal necrosis. In the early stages of zinc deficiency the younger leaves become yellow and pitting develops in the interveinal upper surfaces of the mature leaves. As the deficiency progress these symptoms develop into an intense interveinal necrosis but the main veins remain green.
Control
Foliar spray of ZnSO4 @ 0.5% twice at for nightly interval.