Glume Blotch
Phaeosphaeria nodorum
Glume Blotch
is a common disease in Indiana wheat fields can devastate yields by causing kernels to shrink and shrivel, thereby reducing test weight.
This is the same fungus that causes Stagonospora leaf blotch (SLB) on wheat leaves. These leaf blotch symptoms are a precursor to SGB. Leaf symptoms typically appear in the middle of the canopy during (or closely after) flowering.
Later in the season, SGB can develop, resulting in its telltale brown splotch symptoms on wheat heads.
Glume Blotch Stagonospora nodorum blotch may cause up to 30% loss of yield in wheat.
