Southern Rust
A new report details the need for more ag funding to address existing weeds, insects and diseases as well as agronomic problems that have yet to reach U.S. shores.
Infection may not directly impact herd health, but it can have implications for nutritional management.
The Midwest crop is being pushed into black layer (R6) prematurely in some areas in ways that are easy to confuse with normal drydown factors.
The disease is causing turmoil for farmers who have a large crop in the making. In some cases, a Hail Mary fungicide application at R4 up to early dent (R5) might make sense this season, say agronomists.
On the heels of Crop Tour, Pro Farmer projects corn yields at 6.1 bu. below USDA’s August estimate, while soybean yield numbers are nearly aligned.
Iowa could be the nation’s top state this year for corn and soybeans, but both crops are in a race to beat disease pressure that’s gaining momentum. Illinois corn continues to ride the struggle bus, while the soybean crop there is positioned to deliver high yields.
The extent of the disease in the state is the worst one ISU Extension pathologist says she has ever seen. Farmers in 17 other states have also confirmed the disease.
In addition to keeping a watchful eye for southern rust and tar spot, some farmers and agronomists have been surprised to find pollination issues due to “overly tight tassel wrap.” Let us know how your corn crop is faring,
Southern rust has now been confirmed in at least 15 states, and with high heat and humidity this week, along with strong winds, agronomists are encouraging farmers to scout their corn fields, as conditions are ripe for the disease to spread.
Both diseases are showing up earlier this summer than last year, according to Daren Mueller, Iowa State University plant pathologist. He says a new interactive tool from the Crop Protection Network can help farmers locate these diseases, and others, faster.
Corteva Forcivo will feature three modes of action to address foliar diseases in corn, soybeans, wheat and other crops via overlapping preventive and curative activity.
Iowa farmers say a foliar fungicide application can add more bushels per acre by preventing losses to disease pressure and minimizing the impact of environmental factors, such as heat stress and drought.
There’s a big crop in the field for many Midwest growers, and it requires fuel. N supplies ears with the energy they need to add kernels all the way to their tips and to pack on weight.
If you have tar spot, Southern rust or other disease pressure and plan to dry the crop in the field, you might want to spray again.