Tar Spot Of Corn: What To Know And New Research
Jun 14, 2022 · What is Tar Spot? Due to its relatively recent U.S. discovery and its ability to cause significant production and economic losses, tar spot is often a topic of angst and anxiety …
10 factors you need to know about tar spot - Farm Progress
1 day ago · When tar spot severity is high (more than 5% on the ear leaf at R5), a positive partial net return is likely. When tar spot severity is low (more than 5% on the ear leaf), a negative …
Tar Spot of Corn Map - Crop Protection Network
Tar spot is caused by the fungus Phyllachora maydis. Tar spot is still a relatively new disease in the United States and Canada and tracking its past and current distribution can help us learn …
Corn tar spot identification and diagnostics guide
May 10, 2023 · Tar spot symptoms appear initially as flecking and mild chlorosis (yellowing) on leaves, stalks and husks. The black tar spots form after the flecking or yellowing. These spots …
An Overview of Tar Spot - Crop Protection Network
May 1, 2020 · Tar spot is a foliar disease of corn that commonly occurs throughout the Caribbean, Central America, Mexico, and South America. Tar spot was identified in the United States for …
Tar Spot In The USA - Farm Progress
Dec 1, 2024 · Tar spot disease in corn crops is spreading across the US with confirmed cases in the North, East, South, and Central regions. Experts provide insight. Tar Spot, caused by a …
Don’t miss window to control tar spot - Farm Progress
Jul 5, 2024 · Tar spot is the one disease in susceptible areas best treated as a preventative on acres vulnerable to infection. If you identify tar spot between V12 and R1 and find consistent …
The Growing Threat of Tar Spot in Corn: What Farmers Need to …
Jan 20, 2025 · Tar spot, caused by the fungus Phyllachora maydis, is an increasingly prevalent disease affecting corn crops. Characterized by raised black lesions on corn leaves, this …
Identifying Tar Spot in Corn | Crop Science US - Bayer
Tar spot is a foliar disease of corn caused by the fungus Phyllachora maydis. It was first confirmed in the United States in 2015 in Illinois and Indiana. Tar spot has expanded its range …
How to Identify Tar Spot Disease and Manage Its Spread
Jul 27, 2022 · Learn how to identify Tar Spot with the following strategies. Look at placement and movement. The disease begins on the lower corn leaves and moves to the upper plant and …