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Spring spurge control
Forage Minute

Spring spurge control

Leafy spurge

Leafy spurge contains a toxic substance that causes scours and weakness in cattle and may result in death.

Yellow-green patches in a pasture might look pretty for the uninitiated, but the tell-tale bloom of leafy spurge not a spring sight many of us want to see.

While there are many plants livestock producers may consider pasture weeds, one that is held in particular dislike is leafy spurge. Besides being on the Nebraska noxious weed list and requiring control, this hardy perennial spreads aggressively through seeds and root buds. With an extensive root system that can reach depths up to 15 feet, once established spurge is hard to control.

While biological and cultural control methods may provide some reduction in growth and seed production, those wanting complete control might consider an herbicide treatment as the best option.

Multiple chemicals have action on spurge, however for spring treatments, control at bud or true flower stage is recommended. Early application at the bud stage is limited to 2,4-D ester or Gunslinger/Grazon P+D. A later flower stage application opens up or options to Curtail/Cody/Stinger, Streamline, a mix of Sharpen + Plateau or a mix of Overdrive + Tordon.

Unfortunately, a single treatment will not control spurge, so continued monitoring and retreatment is necessary. An effective strategy is pairing spring applications that prevent seed production with a fall treatment to control new growth.

Leafy spurge can easily take over a pasture, but with vigilance and regular treatment, control can be achieved.

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