Dry weather crops still need fungicides
Weather that includes sufficient moisture for good crop growth is usually thought of as a crop that needs protected with fungicides, and crops growing in dry weather are often thought to be unworthy of protecting. That thinking is definitely not the case.
“Many growers understand the importance of fungicide applications in wet conditions to control disease and provide plant health benefits. What’s not as well known is that dry conditions, which can put an equal stress on plants, are a crucial time for strobilurin fungicides, as well,” said Nick Fassler, technical market manager, BASF. “In dry-weather situations, use of strobilurin fungicides can improve water-use efficiency and reduce ethylene production, while providing three to four weeks of disease protection after application, independent of the weather.”
Dry weather definitely doesn’t mean that diseases will be passive in fields. Certain rust species are more aggressive in dry-weather situations, so growers need to keep a close eye out for rust-type diseases, and scouts should also look out for the typical culprits like gray leaf spot and northern corn leaf blight, according to Fassler.
“Dry conditions can have an effect on overall yield loss, which can range from 5 percent to total loss, depending on the severity,” said Fassler. “Applying a fungicide during dry conditions is an effective way to prevent disease and provide plant health benefits protecting yield potential.”
It needs to also be noted that loss can also depend on the seed planted. Some newer corn hybrids seem to mitigate drought stress better than older hybrids and keep growers on the lower end of yield loss, BASF research has demonstrated.
A fungicide application to have good disease control during the grain-fill window can pay a good return per field research. BASF points to its Headline AMP fungicide for corn and Priaxor fungicide for soybeans to provide the benefits mentioned here.
BASF contends benefits from top quality fungicides that occur with disease protection, even in dry weather, include:
- Disease-free leaves are cleaner and produce more energy for maximum yield potential on soybeans and corn.
- Healthy corn stalks are more efficient at transporting water and nutrients.
- Healthy corn stalks mean improved grain fill, less risk of lodged corn and higher yield potential.
- Healthier soybean plants mean improved seed quality and higher yield potential.
- Research shows that for corn, Headline and Headline AMP promote efficient use of nitrogen across variable rates, and better utilization of nitrogen increases yield.
The application window for most strobilurin fungicide treatments on soybeans is at the R3 stage, and for corn it is the VT to R3 stage.
- 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