Farmers need to be aware of several diseases that can affect corn and soybean crops during the spring growing season. The following are some of the most common corn and soybean diseases to watch for during this time.
Corn fields can contain numerous pathogens in the soil that are capable of infecting corn seeds and seedlings. Corn planted into a well-prepared seedbed with warm conditions that allow it to emerge quickly, can generally outgrow the effects of pathogen attack. However, corn planted into cold, wet soils that emerges more slowly can be susceptible to injury from soilborne pathogens. Soilborne pathogens may attack seeds and seedlings both before and after plant emergence, as well as the roots and mesocotyl of emerging or established plants.
During the spring planting season, farmers need to watch for several diseases that can affect corn and soybean seedlings. Below we will explore some of the most common emergence diseases.
Southern corn rust, a fungus caused by Puccinia polysora, thrives in temperatures above 80 F with high humidity, particularly if corn has been planted late.
Gray leaf spot leads to leaf tissue loss, a decrease in plant sugars and decreased grain production. It is considered the world’s most yield-limiting disease in corn…