ANTHRACNOSE LEAF BLIGHT
Description: Anthracnose lesions on leaves vary greatly in size and shape but are generally less than 1" long with dark tan centers, brown borders and yellowish to orange halos. Lesions generally appear first near the leaf tip and the midrib of the leaf, then coalesce to produce large dead areas and blotches. Black hair like structures emerging from fruiting bodies (acervuli) can be seen with a hand lens during periods of high humidity.
Location: Leaf blight phases of anthracnose can be found throughout the state. It is prevalent in continuous, reduced tillage corn fields.
Time of attack: The disease is favored by rainy weather any time from seedling emergence to maturity.
Management:
· Resistant hybrids
· Till residues
· Crop rotation