Symptoms
Molybdenum deficiency is often described as ‘yellows disease’. At first crown leaves show interveinal and marginal chlorosis with scorched edges. Small whitish spots may appear on the leaf blade. Leaves are stunted and misshapen. If severe, the leaf margins will curl and the leaves die.
Fruit set is reduced, and nitrate accumulates within the plant.
Reasons
Molybdenum deficiency.
Melon is sensitive to molybdenum deficiency. Deficiencies are more common on acid soils where the pH is less than 4.5.
Melons - Chlorosis
Symptoms
Molybdenum deficiency is often described as ‘yellows disease’. Older leaves show interveinal chlorosis with necrotic margins. Small whitish spots may appear on the leaf blade. Leaves become stunted and misshapen. If severe, the leaf margins will curl and the leaves die.
Fruit set is reduced, and nitrate accumulates within the plant.
Reasons
Molybdenum deficiency.
Melon is sensitive to molybdenum deficiency. Deficiencies are more common on acid soils where the pH is less than 4.5.
Molybdenum deficiency made worse by
Acid soils
Low pH
Low levels of soil organic matter
Molybdenum is important for
Nitrogen metabolism, pigment and chlorophyll synthesis
