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Agronomy

Application Requirements with the Roundup Ready® Xtend Crop System

The DEKALB® brand is excited to offer Roundup Ready 2 Xtend™ soybeans; a key component of the Roundup Ready® Xtend Crop System.  Roundup Ready 2 Xtend soybeans are tolerant to both dicamba (Group 4) and glyphosate (Group 9), and are intended to provide soybean growers with the option of applying both Roundup WeatherMAX® herbicide (glyphosate) and XtendiMAX™ herbicide with VaporGrip™ Technology (a straight goods dicamba product from Monsanto) to maximize weed control.

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Benefits of Using the Roundup Ready® Xtend Crop System

Weed control is an important part of crop production.  Poor weed management can result in yield losses and reduced harvestability.  Yield potential in soybeans can be significantly limited by weed competition.  The potential for yield loss is greatest when weeds are present at early soybean growth stages, and when weeds – especially broadleaves – are at high densities.1

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Herbicide Injury in Soybeans

Environmental and other factors can interact to cause herbicide injury symptoms on soybeans.  Herbicides have characteristic injury symptoms that can aid in investigating the cause of soybean symptoms. However, careful scouting and field history should be noted as seedling disease, environmental damage, or herbicide injury may have similar symptoms.  Proper herbicide selection, application timing, and use rate can help reduce the risk of herbicide injury.

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Hail Damage to Soybeans

Recently, localized areas were affected by hail. Hail damaged soybeans can be difficult to examine; however, evaluating plant health and stand loss is important when determining management options.

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Irrigation in Corn & Soybean Production

Irrigation makes agriculture possible in areas previously unsuitable for intensive crop production; water is transported to crops to increase yield, keep crops cool under excessive heat and prevent freezing.1

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Insect

Scouting for Aphids

Adult aphids are approximately 1.5 mm in length and are a pale greenish-yellow insect with black cornicles (“tailpipes”) and a pale yellow “tail”.  Adults may or may not have wings.  Nymphs look exactly like adults but are smaller and do not have wings

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Two Spotted Spidermite

The twospotted spider mite (Tetranychus uricae) (TSSM) is a pest that often shows up in the heat of the summer after winter wheat harvest.  Weather conditions affect the biology of, and management decisions regarding TSSM.

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Stink Bugs

Stink bugs typically infest corn fields early in the season and soybean fields later in season. In general, adults of stink bug species have shield-shaped bodies with piercing-sucking mouth-parts.

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Distinguishing Among Common Fungal Diseases in Soybeans

Fungi that cause SBS, NSC, BSR, and SDS can be present in the soil or crop residue. Symptoms of these diseases are most severe when infection occurs early and with persistent wet weather conditions. Since foliar symptoms of these diseases look similar and initially develop during reproductive stages, an accurate diagnosis is critical for future management options.

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White Mould Management in Soybeans

White mould disease pressure varies each year depending on conditions favorable for development of white mould.  These conditions include cool soil and air temperatures and a decent inoculum load from the previous year. However, open canopies and the warmer temperatures may limit white mould in fields.

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