Disease
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.
The Minnesota corn crop is going for gold. Pro Farmer Crop Tour scouts expect the crop will reach a record 202.86 bu. average, if it can outpace southern rust and tar spot. Scouts peg the Iowa corn crop at a 198.43 bu. average, but it also faces disease challenges.
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.
There is still up to 55% of the kernel dry weight left to be accumulated by many corn hybrids at this point — starch that can contribute significantly to grain fill and higher test weights.
With at least four weeks left in the growing season, Ferrie encourages farmers to stay ahead of heavy disease pressure in fields, particularly in what he calls D hybrids — those that punch their yield card late-season.
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,
Got tar spot? Economic data shows two passes can offer ROI, depending on the hybrid. However, if your crop got dinged at pollination that’s a different scenario and might require a revised game plan that takes yield estimates into consideration.
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.
Many early-planted soybeans in the Midwest are in the R2 to R3 growth stages now, ideal treatment timing for most disease issues. Agronomists offer three reminders to help you make the call — plus a fourth tip on herbicide rescue treatments.
Unlike most leaf diseases, tar spot starts impacting the crop at the bottom of plants. That means fungicides you apply must penetrate and get deep into the crop canopy to provide effective treatment. If you opt to not treat the disease, consider making plans to harvest early and pre-booking some dryer gas.
Wheat streak mosaic virus decimated some fields this season, say K-State Extension specialists. The problem is also showing up and expanding in other key wheat-producing states. What farmers do this fall will determine whether the disease is reined in or takes off again next season.
With product and application costs totaling between $30 and $40 per acre, farmers will be taking a harder look at where they make the investment this season.
David Hula believes a high-quality carrier is so critical to the performance of his crop protection products that he loads and hauls all the water to the local airport that his aerial applicator uses.
As the fight to keep the flesh-eating parasite out of the U.S. intensifies, the economic impact on ranchers and the industry is top of mind. “This pest will be one that leaves quite a mark on our economy,” says one veterinarian.
Secretary of Agriculture Brooke Rollins announces plans to reopen Moore Air Base in Texas as a New World screwworm sterile fly distribution facility. Long-term production is anticipated to be 300 million sterile flies per week.
Now’s the time to be scouting for the disease, especially where the inoculum is present. Tracking weather data, particularly daily humidity levels, can help you keep an eye on tar spot this season.
Alex Harrell, soybean world record holder, says the technology helps him make more accurate and timely foliar product applications, while costing less than using a ground rig or an airplane.
A 25-page criminal complaint alleges the researcher and her boyfriend were attempting to bring Fusarium graminearum into the country. The fungus causes significant diseases in a number of food crops, including corn, wheat, barley, soybeans and rice. Toxins from the fungus are harmful to humans and livestock.
NCBA’s Woodall says the goal is complete eradication — not just from the U.S., but from Mexico and Central America, ultimately pushing the fly back to its original range in South America.
NCBA applauds Secretary of Agriculture Brooke Rollins’ aggressive efforts to suspend Mexican cattle, horse and bison imports, saying Mexico’s corruption and mismanagement has caused the pest to spread closer to the U.S.
Parts of the Central and Southern Plains are seeing some beneficial rains, but did they come in time to improve the winter wheat crop? Farmers will know soon, as harvest generally begins in early to mid-June.
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“Sunlight drives photosynthesis, which drives starch production, which drives yield,” explains Ken Ferrie. If sunlight hits the ground, it’s wasted, so maximizing sunlight capture requires closing rows as quickly as possible.
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Results from a new survey reveal that between 25% and 50% of corn and soybean growers adopt the use of cover crops when their trusted adviser has been planting them, as well.
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.
One solution to low prices is producing more bushels. Take a minute to think through some of the best management practices outlined here that will help you accomplish that.