Why does your Onion Takmark F1 have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
Potassium deficiency is a classic cause of marginal necrosis in onions, where the leaf tips and edges turn brown. This prevents proper osmotic regulation within the onion bulb cells.
Onion Takmar F1 is sensitive to high salt concentrations in the soil or irrigation water. High salinity causes osmotic stress, leading to localized tissue death at the leaf tips.
Erratic moisture levels cause rapid transpiration that the onion's vascular system cannot keep up with, resulting in desiccation of the furthest leaf tissues.
This fungal pathogen causes necrotic lesions that can begin at the tips or margins of the onion leaves, often progressing into larger brown patches.
Your plant might also be experiencing one of these issues:
English
Italiano
