Benefits of Soybean Seed Treatments

Early-season diseases and soil insects can have detrimental effects on soybean seeds and seedlings. Seed treatments can help maximize emergence and desired populations by protecting the seed and seedlings from injury.

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Cool, wet, poorly drained soils are common during spring planting and crop emergence. These conditions favor the development of fungal pathogens that cause soybean seedling diseases, which can slow germination and plant growth. Early-season insects may also damage soybean seeds and seedlings, causing adverse affects on plant growth. Fungicide and insecticide seed treatment products for soybeans can help protect seed and seedlings from pests, resulting in a more uniform plant stands improved yield potential, and ultimately increase return on investment.

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Benefits of Seed Treatments

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Early planting is highly recommended for high yield soybean production. Reduced tillage and narrow row spacing are also key factors for obtaining maximum production. These are all situations where seed treatment can help manage disease and insect problems that may reduce yield potential. Many times, early-season conditions such as cool, wet soils can slow germination and plant establishment. Soil conditions can quickly become wet and cold (less than 60°F) and under these conditions, soybean seeds germinate and emerge very slowly, making them more susceptible to attack by pathogens. A key to improving soybean yield potential is to improve root health and seedling vigor. Soybean yield potential is compromised by environmental stresses and a complex of soil-borne pathogens. These pathogens invade plant roots causing tissue decay, a reduction in the number of root tips, a decrease in nodule size, and loss of root function. Pythium species cause seed decay, pre-emergence damping off, and early post-emergence seedling death. Seed infected with Pythium species may decay before germination and become soft and rotted. Early-season Phytophthora sojae favors slightly warmer soil temperatures and causes a soft, wet rot of the seedling tissue similar to that of Pythium. Infected seedlings may die prior to emerging from the soil or shortly thereafter. Symptoms of Rhizoctonia solani infection appear on seedlings as dry, dark reddish-brown lesions just above the soil surface. Rhizoctonia is typically more of an issue in soils that are warm and dry.

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The unpredictability of early-season planting conditions can be managed through the use of Acceleron® Seed Applied Solutions for disease and insect protection (Table 1). The modes of action provided by Acceleron Seed Applied Solutions can help reduce disease pressure, improve plant health, and encourage even emergence. Seeds are better protected during the critical 30 days after planting and also protected as they grow.

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Table 1. Key pests controlled by Acceleron® Seed Applied Solutions for soybean.
Key DiseasesKey Insects
Pythium speciesBean leaf beetle
Early-season Phytophthora sojaeSoybean aphid
FusariumSeedcorn maggot
Rhizoctonia solaniWireworm
Grape colaspis
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There are a number of new Acceleron Seed Applied Solutions exclusive product offerings for 2017. New soybean products include Acceleron® B-200 SAT a biological product for soybeans containing plant-derived flavonoids to help enhance nutrient uptake, ILeVO® Seed Treatment the first and only solution for sudden death syndrome (SDS) with activity against nematodes and, when paired with Poncho®/VOTiVO®, provides the broadest spectrum nematode control available.

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Acceleron Seed Applied Solutions will provide three options for farmers to choose from for more complete and consistent protection from early-season pests and maximize early-season plant stand, uniformity, and vigor for higher yield potential (Table 2).

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Table 2. Acceleron® Seed Applied Solutions for soybean.
BASICSTANDARDELITE
More rapid, increased germinationMore rapid, increased germinationMore rapid, increased germination
Pythium, early-season phytophthora, more complete protection from rhizoctonia, and fusariumPythium, early-season phytpphthora, more complete protection from rhizoctonia, and fusariumPythium, early-season phytpohthora, more complete protection from rhizoctonia, and fusarium
Early-season aphid, bean leaf beetle protectionEarly-season aphid, bean leaf beetle, leafhopper, seedcorn maggot, three-cornered alfalfa hopper, thirps, white grub, wireworm
Soybean cyst, root knot, reniform nematodes
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Talk with your DEKALB® Asgrow® dealer and visit MonsantoBioAg.com for additional information.