Species Specifics: Blackberry

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Blackberries, if left unchecked, can quickly spread in a pasture and reduce the amount of grazeable acres.


  • Blackberry is a prickly, perennial shrub commonly found in pastures.
  • Blackberry thickets make it difficult for your herd to move around pastures.
  • The same competitive characteristics that make blackberries relatively easy to grow in a home or commercial setting make them a persistent foe in your pasture or rangeland.
  • Treat blackberry with DuraCor™ herbicide once fruits have dropped in late summer for best control.



Blackberry (Rubus) is a thicket-forming perennial shrub. It can grow up to 9 feet tall with stout, arching canes covered in broad-based thorns. Canes can be up to 40 feet long. Plants have a large, deep woody root crown with thick lateral roots. While leaf shape can vary species to species, blackberry leaves are primarily evergreen with rounded and toothed edges. Flowers are small, white to pinkish in color with five petals.



Blackberry is well adapted to growing in grasslands and open, disturbed areas – making pastures a prime target. Once established, blackberry can restrict movement of livestock and wildlife, while reducing  desirable plant productivity. Because there are over 20 species of blackberry in North America, finding blackberry is common throughout most of the United States.



Blackberries are difficult to control since plants are capable of regenerating from the root crown or rhizomes. Acceptable results are possible but may require multiple applications and/or tactics. Treat blackberry infestations with 16 fluid ounces of DuraCor™ herbicide tankmixed with 16 fluid ounces PastureGard and 0.25% nonionic surfactant per acre. For nonresidual weed control, apply 2 pints per acre of PastureGard® HL herbicide. Foliar applications provide the best control after fruit has dropped in late summer.


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Label precautions apply to forage treated with DuraCor and to manure and urine from animals that have consumed treated forage. Consult the label for full details.

™ ®Trademarks of Dow AgroSciences, DuPont or Pioneer, and their affiliated companies or their respective owners. DuraCor is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. © 2020 Corteva.


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