WOOSTER, Ohio – Hot, humid weather coupled with rain during a critical development stage of Ohio’s wheat has caused an outbreak of head scab in some areas of the state – the first major outbreak of the disease in the state in about a decade.
A statewide survey of Ohio wheat fields, which began two weeks ago, has found the incidence of head scab to be moderate to high in 70 percent of the73 fields surveyed in 16 counties.
“Incidence of head scab ranges from 3 percent to 61 percent, meaning that between 3 and 61 heads out of every 100 heads has some level of head scab,” said Pierce Paul, an Ohio State University Extension plant pathologist and small grains specialist.
Head scab (Fusarium graminearum), also known as head blight, is a disease that attacks wheat during the crop’s flowering stage when environmental conditions are just right. The disease not only affects yields, but the fungal pathogen that causes the disease produces several mycotoxins, the most common of which is known as vomitoxin, that is harmful the humans and animals if ingested.… Continue readingRead More »