Corn : Glass Gem
Stunning opalescent jewel-like kernels
Origin traces back to Carl Barnes, a part-Cherokee farmer living in Oklahoma. Glass Gem is a flint corn used for making flour or as a popping corn. Unlike sweet corn, it is not edible right off the cob. However, it was likely bred as an ornamental variety—for obvious reasons. Many of these exquisite ears are simply too beautiful to eat.Poaceae Zea mays
Corn Leaf Blight
Northern and Southern Corn Leaf Blights are fungal diseases that produce yellow, gray or tan oval spots and yellowing of leaves. They are most problematic in warm, wet conditions.
The usual fungal control measures should be used. Make sure the soil is well-drained, avoid wetting the leaves (or at least water when they can dry out quickly). Keep the soil clear of crop debris. Supply plenty of compost. Rotate crops annually. If this becomes a recurrent problem the simplest solution is to use resistant cultivars.
Image: Department of Plant Pathology Archive, North Carolina State University, Bugwood.org