The ear is a spike, consisting of a central stem on which grow tightly packed rows of flowers. These develop into fruits containing the edible seeds. In corn, it is protected by leaves called husks.
A parasite known as Anguina tritici (Ear Cockle) specifically affects the ears on wheat and rye by destroying the tissues and stems during growth. With exception to North Africa and West Asia, the parasite has been eradicated in all countries by using the crop rotation system.
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