Older leaves turn yellow in severe cases. The main symptom of manganese deficiency is a pale green leaf. Older leaves show interveinal yellow-mottling in the severest cases. The main symptom of manganese deficiency is a pale green leaf. Older leaves show interveinal yellow-mottling particularly at the leaf margins.
Older leaves show fine interveinal yellow or yellow-white mottling.
Most species show interveinal yellow of the older leaves which begins at the leaf margins and gradually extends to towards the midrib leaving a band of green along the vein.