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Prevent corn diseases with Headline

May 20, 2008

There's still time to prevent the worst diseases and get the full Plant Health benefits of Headline® fungicide on corn. The fact is that even the lowest level of disease drains yield from your fields even though the symptoms remain unseen, often hidden beneath the canopy. So the key is to apply Headline now and prevent disease outright while enabling your corn to benefit from improved growth efficiency, stress resistance and ultimately higher yields at harvest.

You can apply Headline between seedling emergence and blister, with the optimal timing being between full tassel (VT) and blister (R2), in advance of disease outbreaks. It is critical to prevent disease during the early reproductive stages for maximum Plant Health benefits.

The benefits of a preventative application are well established. Over the past four years of on-farm field trials and on hundreds of thousands of acres across the nation, Headline improved corn yield by 12 to 16 bu/A.

The following section outlines four of the most harmful diseases to corn and how you can identify them.

 

 

Gray leaf spot

This disease first appears as greenish-black, water-soaked circular spots with tan/yellow halos. These expand into distinctive rectangular brownish-grey lesions that are bordered by the leaf veins. In extreme cases, stalk infections can cause lodging and limit grain fill (resulting in yield loss).

 

Anthracnose

Apparent primarily on lower leaves, this disease appears as oval spots with a tan center and a reddish to yellowish border. Spots later become spindle-shaped (with wide "ends") and often overlap to cover the entire leaf. Left unchecked, this fungus can cause stalk rot that results in premature death and lodging.

 

Common & southern rust leaf spot

Initial small tan/yellow/orange flecks on the leaf turn into reddish-brown powdery pimples on the upper and lower leaf surface (common rust) or just the upper surface (southern rust). When the corn is planted late and the upper leaves are infected, this disease can cause losses in yield and quality.

 

Northern corn leaf blight

This disease appears as long cigar-shaped, gray-green or green lesions (spots). It can cause significant yield losses during wet weather, particularly if lesions appear on the upper leaves before silking.

 

Always read and follow label directions.

Headline is a registered trademark of BASF. ©2008 BASF Corporation. All Rights Reserved.

APN 08-01-088-0003

 

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