Treating Stunt In Corn – How To Manage Stunted Sweet Corn Plants

By January 11, 2018Articles

Treating Stunt In Corn – How To Manage Stunted Sweet Corn Plants

By Mary H. Dyer, Master Naturalist and Master Gardener As the name suggests, corn stunt disease causes severely stunted plants that may not exceed 5 feet in height (1.5 m.). Stunted sweet corn often produces multiple small ears with loose and missing kernels. Leaves, especially those near the top of the plant, are yellow, gradually turning reddish purple. If your sweet corn shows signs of corn stunt disease, the following information may help you manage the problem. Sweet Corn Stunt Causes Stunt in sweet corn is caused by a bacterial-like organism known as spiroplasma, which is transmitted from infected corn to healthy corn by corn leafhoppers, small insects that feed on corn. The bacteria overwinters in adult leafhoppers, and the pests infect corn in early spring. Symptoms of stunt in sweet corn usually appears about three weeks later. How to Manage Sweet Corn with Stunt Unfortunately, there are currently no

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