Soybean Seed Treatment Evaluation


  • Evaluate seed treatment effects on grain yield among selected Pioneer® brand soybean varieties in Ohio and Michigan (Figure 1).
  • Measure yield at high pressure bean leaf beetle (BLB) locations.


Figure 1. Michigan and Ohio seed treatment locations, 2012 and 2013

Study Description

Years: 2012 and 2013
Pioneer® Varieties Tested¹:      93Y05 (RR)
93Y84 (RR) - 2013
93Y91 (RR) - 2012
Treatments Tested: UNT = untreated check
FST = EverGol™ Energy + Allegiance® Fungicide
IST = FST + Gaucho® Insecticide
NST = FST + Poncho®/VOTiVO® insecticide/nematicide


  • Although most 2013 locations had low to moderate seedling disease and insect pressure, average yield improved with fungicide treatment (Figure 2).


Figure 2. 2013 grain yield of all varieties combined among seed treatments, 20 locations.

  • At locations where bean leaf beetle (BLB) pressure was greater than 10%, there was a significant yield advantage with insecticide seed treatment (Figure 3).



Figure 3. 2012 and 2013 grain yield among treatments with > 10% BLB pressure, 10 locations.

These test results demonstrate significant value of Pioneer Premium Seed Treatment under both moderate and high disease and insect pressure.

¹All Pioneer products are varieties unless designated with LL, in which case some are brands.

All products are trademarks of their manufacturers. PIONEER® brand products are provided subject to the terms and conditions of purchase which are part of the labeling and purchase documents. 2013 data are based on average of all comparisons made in 39 locations through November 18, 2013. Multi-year and multi-location is a better predictor of future performance. Do not use these or any other data from a limited number of trials as a significant factor in product selection. Product responses are variable and subject to a variety of environmental, disease, and pest pressures. Individual results may vary.

Pioneer Premium Seed Treatment for soybeans is applied at a Pioneer production facility or by an independent sales representative of Pioneer. Not all sales representatives offer treatment services, and costs and other charges may vary. See your Pioneer sales representative for details. Seed treatment offering is exclusive to Pioneer and its affiliates.

Glyphosate Tolerant

R - Contains the Glyphosate Tolerant trait. Always follow grain marketing, stewardship practices and pesticide label directions. Varieties with the Glyphosate Tolerant trait (including those designated by the letter “R” in the product number) contain genes that confer tolerance to glyphosate herbicides. Glyphosate herbicides will kill crops that are not tolerant to glyphosate.

Poncho® and VOTiVO® are registered trademarks of Bayer.

EverGol® is a registered trademark of Bayer.