Recommendations concerning wheat disease

decrease font size  Resize text   increase font size       Printer-friendly version of this article Printer-friendly version of this article

As temperatures rise and winter wheat begins to break dormancy, a university specialist and Syngenta recommend growers keep a close eye on their crops to identify early signs of disease that may reduce grain quality and yield potential.

Due to the unusually long winter and late-arriving spring, wheat will likely move more quickly through growth stages as it reacts to more consistent temperature warm-ups, according to Brian Norton, Syngenta agronomic service representative in Kansas. Now that there will be fewer cold snaps that cause setbacks, it is important to scout fields early and often for potential pest outbreaks. Wheat plants determine maximum yield potential early in the developmental process, so it is especially important to eliminate potential disease threats and ensure a healthy start.  

“Wheat plants determine the maximum number of potential spikelets per head at Feekes Growth Stages (FGS) 4 and 5, which is a key component for determining maximum yield potential,” Norton said. “It is important at this stage to make sure wheat is not being stressed by diseases and is utilizing water and nutrients as efficiently as possible.”

Some early-season diseases to watch for this spring include powdery mildew and tan spot in the northern states; leaf rust in the Pacific Northwest; and stripe rust in the South. These diseases can devastate wheat fields and may reduce yields.

Syngenta urges growers to proactively manage these diseases. An application of the right fungicide helps safeguard wheat against the yield-robbing diseases mentioned and Septoria. Wheat plants can  maintain green leaves longer, improving plant quality and maximizing yield at harvest. Killing disease spores and providing residual protection has to be the goal.  

Syngenta promotes the use of its Quilt Xcel, which has two modes of action for both preventive and curative disease control, to help manage wheat diseases throughout the season.

According to Gene Milus, plant pathologist at the University of Arkansas, an early-season fungicide application can be a cost effective way to manage stripe rust pathogens that overwinter in wheat. Controlling stripe rust early reduces the spread of infection to other plants and fields, keeps the pathogen population size low and allows time for resistance to be expressed in adult plants. 

In addition to applying a preventive fungicide industry experts offer the following recommendations to help minimize potential threats from early-season diseases.

Track diseases

A good indicator that wheat may need extra protection is the level of disease presence in states located to the south. Many diseases can spread through windblown spores, so being aware of conditions further south can inform growers if and when to take preventive action.  

“Now is the time that we begin paying attention to what is happening in states to the south,” said Erick De Wolf, wheat extension pathologist at Kansas State University. “For us, the first indication that we may experience stripe rust or leaf rust pressure is if we hear reports from Texas or Oklahoma. When they start having problems, we take that as a warning.”

Scout early and often

Scouting fields early allows growers the chance to take action at the first sign of disease. “I recommend growers start scouting their fields early and continue throughout the entire season,” said Jill Herold, Syngenta agronomic service representative in Montana. “It is much easier to prevent diseases than try to control them once they are already present in the field.”

When scouting for disease, pay close attention to the top and bottom of the leaves of the wheat plant. Powdery mildew infections will look like small, irregular or circular gray-white spots on leaves at flowering. Signs of stripe rust include small, yellow or orange blister-like lesions, also known as pustules. Leaf rust infections will take the shape of small, round or oval raised orange-red pustules on leaf surfaces. To view images of these diseases, visit Tools to Grow More Wheat an agronomic resource page. Areas that are experiencing a cool, wet spring are especially at risk for disease infection. As always in working with growers, agronomists and consultants should be suspicious of an infection and send a tissue sample to a plant disease diagnostic clinic.

Following a colder than normal winter, it is important to keep wheat healthy as it will likely experience a reduced developmental period. Being proactive and keeping a close eye on wheat helps avoid playing catch-up later.

More information is at http://www.syngenta-us.com/ and www.agriprowheat.com.


Prev 1 2 Next All



Buyers Guide

Doyle Equipment Manufacturing Co.
Doyle Equipment Manufacturing prides themselves as being “The King of the Rotary’s” with their Direct Drive Rotary Blend Systems. With numerous setup possibilities and sizes, ranging from a  more...
A.J. Sackett Sons & Company
Sackett Blend Towers feature the H.I.M, High Intensity Mixer, the next generation of blending and coating technology which supports Precision Fertilizer Blending®. Its unique design allows  more...
R&R Manufacturing Inc.
The R&R Minuteman Blend System is the original proven performer. Fast, precise blending with a compact foot print. Significantly lower horsepower requirement. Low inload height with large  more...
Junge Control Inc.
Junge Control Inc. creates state-of-the-art product blending and measuring solutions that allow you to totally maximize operating efficiency with amazing accuracy and repeatability, superior  more...
Yargus Manufacturing
The flagship blending system for the Layco product line is the fully automated Layco DW System™. The advanced technology of the Layco DW (Declining Weight) system results in a blending  more...
Yargus Manufacturing
The LAYCOTE™ Automated Coating System provides a new level of coating accuracy for a stand-alone coating system or for coating (impregnating) in an automated blending system. The unique  more...
John Deere
The DN345 Drawn Dry Spreader can carry more than 12 tons of fertilizer and 17.5 tons of lime. Designed to operate at field speeds up to 20 MPH with full loads and the G4 spreader uniformly  more...
Force Unlimited
The Pro-Force is a multi-purpose spreader with a wider apron and steeper sides. Our Pro-Force has the most aggressive 30” spinner on the market, and is capable of spreading higher rates of  more...
BBI Spreaders
MagnaSpread 2 & MagnaSpread 3 — With BBI’s patented multi-bin technology, these spreaders operate multiple hoppers guided by independent, variable-rate technology. These models are built on  more...


Comments (0) Leave a comment 

Name
e-Mail (required)
Location

Comment:

characters left


Demco 1400 Grain Cart

Demco offers a 1400 bushel grain cart to provide unmatched efficiency and operator convenience. In addition to the large 1400 ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form