What's Happening?
An agronomist from Corteva Agriscience, Grant Harms, has raised concerns about the spread of southern rust in corn crops, which has been detected in Iowa. Southern rust, a disease that travels north from the south, poses a significant threat to corn yields.
Harms emphasizes the importance of using fungicides to prevent the disease from becoming unmanageable. Additionally, tar spot, another corn disease, is highlighted as a concern due to its ability to overwinter and persist in fields for years. Harms recommends the use of SDHI chemistries found in Forcivo fungicide for effective management of these diseases. The appearance of southern rust is noted to be later this summer compared to the previous year, with less pressure observed so far.
Why It's Important?
The spread of southern rust and tar spot in corn crops is significant for the agricultural industry, particularly in regions known as the 'bread basket' of the U.S. These diseases can severely impact corn yields, which are crucial for both domestic consumption and export markets. Effective management of these diseases is essential to prevent economic losses for farmers and to maintain the stability of the corn supply chain. The use of fungicides, as recommended by experts, can help mitigate the risks and ensure that corn production remains viable. The agricultural sector must remain vigilant and proactive in disease management to safeguard crop yields and farmer livelihoods.
What's Next?
Farmers and agronomists will likely continue to monitor the spread of southern rust and tar spot closely. The use of fungicides and other preventive measures will be critical in managing these diseases. As the season progresses, further assessments will be needed to determine the effectiveness of current strategies and to adjust them as necessary. Collaboration between agricultural experts, farmers, and industry stakeholders will be key in developing comprehensive management plans to address these ongoing threats.
