Soybeans Field Management Seeding
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Disease Reference – Action Thresholds and Registered Seed Treatment Options

Pathogen (Disease) Possible Risk on Seed Recommendation if Over Risk Level Seed Treatment Options
Agrox® FL (Norac Concepts) Allegiance® FL (Bayer) Apron® Maxx Peas (Syngenta Canada) Belmont™ 2.7 FS (UPL AgroSolutions Canada)

Draco™ (Syngenta Canada)2

EverGol® Energy (Bayer) Heads Up® Plant Protectant (HeadsUp) Insure Pulse® (BASF Canada) INTEGO ™ Solo Fungicide; (Valent Canada/NuFarm Agriculture)   Lumisena® (Corteva Agriscience)

Rancona Trio (UPL AgroSolutions Canada)3

Saltro® (Syngenta Canada)2

Telex Fungicide (Sharda CropChem) Vayantis® (Syngenta Canada) Vayantis® IV (Syngenta Canada) Vibrance® Maxx (Syngenta Canada) Vibrance® Maxx RFC (Syngenta Canada) Vitaflo® Brands (various) Zeltera® Pulse (Valent Canada/NuFarm Agriculture) Zeltera® Pulse co-pack;  (Valent Canada/NuFarm Agriculture)  
Ascochyta spp. (Ascochyta Blight) Greater than 10% Use seed treatment               X                        
Botrytis spp. (seed-borne only) 10% on seed (total of Fusarium, Botrytis, and Sclerotinia) Use seed treatment           X  

X1

                       
Fusarium spp. 10% on seed (total of Fusarium, Botrytis, and Sclerotinia)Soil-borne as well Use seed treatment     X     X   X     X       X X X X X X
Phomopsis spp. Up to 20% Use seed treatment if: History of disease, expecting humid/warm conditions     X     X         X       X X X X X

X1

Greater than 20% Do not plant seed
Phytophthora spp. Not applicable; Soil-borne disease only Use seed treatment if: History of disease, seeding into warm, saturated soil   X X X         X X     X X X X X   X

X1

Pythium spp. Not applicable; Soil-borne disease only Use seed treatment if: History of disease, seeding into saturated soil   X X X   X   X X       X X X X X   X X
Rhizoctonia spp. Unknown; Primarily soil-borne disease Use seed treatment if: History of disease, seeding under cool-moist conditions     X  

X1

X

X1

X     X       X X X X X X
Sclerotinia sclerotiorum (seed-borne only) 10% on seed (total of Fusarium, Botrytis, and Sclerotinia) Use seed treatment            

X1

                  X  

X1

 
General seed rot, root rot, damping-off, and seedling blight Not applicable Use seed treatment if: History of disease, seeding under cool-moist conditions X                   X         X        
Sudden Death Syndrome Fusarium virguliforme Not applicable Use seed treatment if history of disease                    

X1

X               X

1 Product registered for suppression only
2 Product contains an insecticide component
3 Tank-mixing Rancona Trio with Belmont™ 2.7 FS offers control of pythium & phytophthora in soybean as per Rancona Trio product label

Insect Reference – Recommendations and Registered Seed Treatment Options

Insect Recommendation Seed Treatment Options
Alias® 240SC (Adama) Clariva™ (Syngenta Canada) Cruiser® 5FS (Syngenta Canada) Draco™ (Syngenta Canada)4 Fortenza® (Syngenta Canada) Lumiderm™(Corteva Agriscience) Saltro® (Syngenta Canada)4 Sombrero® 600FS (Adama) Stress Shield® 600 (Bayer)
Bean Leaf Beetle Use seed treatment if: History of insect pressure on the field or in the nearby area         X X     X
Cutworm Use seed treatment if: History of insect pressure on the field or in the nearby area         X X      
Seed Corn Maggot Use seed treatment if: History of insect pressure on the field or in the nearby area X   X   X X   X X
Soybean Aphid Use seed treatment if :History of insect pressure on the field or in the nearby area     X     X   X X
Soybean Cyst Nematode Use seed treatment if: History of insect pressure on the field or in the nearby area  

X1

 

X1

   

X1

   
Wireworm Use seed treatment if: History of insect pressure on the field or in the nearby area X   X   X X   X X

4 Product contains fungicide components

Action thresholds have not been identified for soybean disease and insect risks, so the recommendations provided are based on thresholds from similar crops, or rules of thumb.

Understanding seed quality and using seed treatments on pulse seed when risk of disease or insect damage is present, is critical to maximizing yield.

Fungicide seed treatments protect the seed and seedlings from soil-borne diseases, as well as those diseases found on the surface of the seed or carried inside of the seed. Seed treatments will not act as a cure for seed that has high disease levels or is poor quality.

In order for a seed treatment to provide effective protection, it is important to ensure that adequate coverage of the seed is achieved and appropriate rates are used for the target pest(s).

Seed treatments will breakdown as the plant begins to develop and as a result, their limit of protection to the seed will only last for the early part of the plant’s growth.

When using a seed treatment in combination with an inoculant, it is important to check with the inoculant manufacturer to ensure that there is compatibility with the seed treatment, prior to use.

Seed treated with a seed treatment may pose a risk to other organisms or plants in the environment. Dispose of all leftover treated seed properly, and do not leave treated seed on the soil surface.

Version March 2023

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