Answer: I can't tell from your description whether the growth is coming from the stalk itself or if there are mushrooms growing in the soil and are close to the stalks. Mushrooms are indicative of soggy soils or dying corn stalks. On the other hand, you may be describing a condition called crazy top. The very wet conditions this past spring may have saturated the soil and these wet conditions can predispose corn plants to bights and root rots. Flooded conditions can promote the development of a disease known as crazy top. This disease is caused by a water-mold that is in the soil. Infection results in strange looking plants. Other symptoms include proliferation of the tassel or ears where these resemble a mass of leafy structures. If only one plant is affected, I would pull it and remove it from the garden. You might take it into your local cooperative extension office or Master Gardener clinic for a more thorough diagnois. Best wishes with your corn.
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