Today 
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Fungal spores attack emerging tulip leaves. They invariably become malformed, with brown spots leading to rotting of both the foliage and flowers, although the buds may well fail to open. If they do open, there will probably be white spots on the petals. Sometimes the flower stem collapses and the whole plant can end up covered in fungus, especially after heavy rain.
Solution
Organic
Immediately destroy all infected plants, along with the soil around the roots, and don't replant any tulips in the same spot for at least three years. Check tulip bulbs carefully before planting to make sure they are unblemished and firm, and don't have any signs of fungus around the neck.
Chemical
Before storing bulbs, dust them with sulphur or dip them in a solution of carbendazim to guard against rotting.
