Start Date

19-12-1990 12:00 AM

Description

Leaf diseases of corn in Iowa in 1990 were probably the most severe since the 1970 epidemic of Southern corn leaf blight. The leaf diseases resulted in an "early maturing" of the corn in many fields which was attributed erroneously to a late season heat stress in many popular reports. These leaf diseases combined with heavy corn borer infestations in some areas contributed greatly to the smaller kernels, poor kernel fill, and lower yields than expected. The leaf diseases will be discussed individually.

DOI

https://doi.org/10.31274/icm-180809-332

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Dec 19th, 12:00 AM

Control of Corn Leaf Diseases

Leaf diseases of corn in Iowa in 1990 were probably the most severe since the 1970 epidemic of Southern corn leaf blight. The leaf diseases resulted in an "early maturing" of the corn in many fields which was attributed erroneously to a late season heat stress in many popular reports. These leaf diseases combined with heavy corn borer infestations in some areas contributed greatly to the smaller kernels, poor kernel fill, and lower yields than expected. The leaf diseases will be discussed individually.

 

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