By Pierce Paul and Dennis Mills, Ohio State University Extension
The damage left by above-average rainfall is now showing up in parts of Ohio. Wheat fields that were under water for several days are now dying. Wheat can recover from a few days of excess water, once the water dries out quickly. But the frequent and heavy rains we have had left the crop under water for close to a week in some locations.
Excess water replaces the air in the soil and deprives the plant roots of much-needed oxygen. Roots that are deprived of oxygen for an extended period will die. This is soon followed by death of the stems, and eventually, the entire plant, and the dead plant tissue is quickly invaded by opportunistic organisms. While wet, saturated, and poorly aerated soils do favor some plant pathogens such as Pythium and could lead to root rot, the problems we are seeing in most of the flooded fields are not caused by diseases.… Continue readingRead More »