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Soybean leaf damaged by dicamba.

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Auxinic (hormone-type) herbicides such as dicamba can drift onto soybeans and cause leaf and stem malformations, such as leaf-supping, twisting, parallel venation or leaf strapping. Low-level drift that occurs before flowering can cause significant visual injury symptoms but in many cases, this does not have a significant impact on yield. Injury can come from herbicide drift from adjacent fields or from contaminated spray tanks that were not properly cleaned. For more information see Banvell II, Vanquish and Marksman.

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Excerpt from Agronomy Guide for Field Crops (Chapter 4): Order this publication

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