Wheat seed treatments

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

There are many different seed treatments available for wheat (see table at the end of this article). Although most seed treatment ingredients are fungicides, lindane and imidacloprid are insecticides. Each ingredient has certain strengths and weaknesses that may depend on the particular rates used. Many commercial formulations are complementary combinations of ingredients to provide a broader spectrum of protection. Carboxin, difenoconazole, imazalil, imidacloprid, metalaxyl, tebuconazole, thiabendazole, and triadimenol are systemic whereas the others are surface-acting protectants.

A major use of seed treatments is control of seedborne smuts and bunts. Loose smut control requires a systemic fungicide such as carboxin, tebuconazole, difenoconazole, or triadimenol. Common bunt can be controlled with most commercial treatments. Recently, a disease called Karnal bunt was detected in the southwestern United States. Quarantines are established to keep Karnal bunt out of the Great Plains. The use of certain seed treatments could help reduce the spread of this seedborne disease. No products can control Karnal bunt after it becomes established in the soil.

A second major use is to improve stand establishment. Most treatments do at least a fair job of controlling seed rots and seedling blights. Scab and black point are two seedborne diseases that can reduce seed germination. If seed has either of these diseases, it should be cleaned to remove all light seeds, then tested for germination rate. If germination is low (less than 90 percent), a seed treatment could help raise the germination rate. Several treatments are available if wireworms are expected to be a problem in stand establishment.

Note: if you would like to print this table out, it's easier to get it in PDF (requires Adobe's free software).

Some common wheat seed treatments in Kansas 1997-98

click image to zoom
click image to zoom
click image to zoom

A E = excellent, G = good, F = fair, S = low level suppression, - = not recommended or insufficient information, (H) = hopper box treatment.

B Dryland foot rot (also called Fusarium crown rot), common root rot, or Rhizoctonia root rot.

C Powdery mildew, Stagonospora nodorum leaf blotch, or leaf rust controlled in the fall. Control may or may not carry through to spring depending on year.

D Greenbugs, Russian wheat aphids, English grain aphids plus bird cherry-oat aphids and BYDV (barley yellow dwarf virus), which they carry.

E Dividend now combined with Apron to improve control of Pythium seed rot and seedling blight. Hopper box formulations available.

F Fall control of insects and BYDV depends on rate. Use high rate for best control. Control may or may not carry through to spring depending on year.

G RTU-Vitavax Thiram (6.8 fl. oz./cwt) must be combined with RTU-PCNB (3.0 fl. oz./cwt) for reduction of seedborne Karnal bunt teliospores.

Information provided by Robert Bowden, Kansas State University Plant Pathology Extension.


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


Grain Storage Systems

Behlen Grain Storage Systems offers large capacity bins with diameters from 16’ to 157’ and capacities exceeding 1,500,000 bushels. All ... Read More

View all Products in this segment

View All Buyers Guides

Feedback Form
Feedback Form