Corn fungicide efficacy ratings
The Corn Disease Working Group has prepared an updated table of efficacy ratings for corn fungicides.
This table only provides efficacy ratings for diseases. It does not rank fungicides for physiological “plant health” effects.
Diseases of primary concern to us in Kentucky would include gray leaf spot and, sometimes, Northern leaf blight. In selected fields in some years, southern rust may justify a fungicide application under Kentucky conditions, but in most fields, levels of southern rust are so low that routine fungicide application is difficult to justify.
It would be very uncommon for the other diseases listed to pose yield-impacting threats under Kentucky conditions.
This table is a “work in progress,” so efficacy ratings are subject to change, should ongoing research indicate that changes are justifiable. In the meantime, these ratings may be useful to corn producers.
- DuPont Crop Protection to sell certain assets to Bayer
- New research study shows the value of neonicotinoids
- Alltech Crop Science acquires South African distributor
- Monsanto invests to transform plant breeding
- Fungicide-resistant soybean diseases spreading
- Most crop futures are starting Thursday on a strong note
- ValueAct buys stake in fertilizer dealer Agrium
- Critics of Dow herbicide sue U.S. EPA over approval
- Six tips to help professionals take leaps of faith
- Nitrogen fertilization rates for corn production
- Landmark Services Co-op, Curry Seeds sign agreement
- No-till may not bring boost in global crop yields
- Los Angeles City Council votes to explore ban on GMO plants
- ASA issues statement on EPA’s neonicotinoid study
- Economist: Taxing P could reduce risk of algal blooms
- Commentary: Government wants farmers to quit farming
- Resistant weeds not controlled by fall residuals
- First responders need to prepare for agroterrorism