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"Poisonous" does not mean deadly. Some manifestations of toxicity are subtle. The dose, as always, determines if a plant is safe source of nutrients or a toxic hazard.

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BRIEF: I need information on creeping indigo...

I am writing to you to see if you have any information on a plant that is called creeping indigo. Since Hurricane Andrew it seems to have taken over our pasture and has killed one of my horses and my other horse is having effects from this weed. We can no longer allow them out to pasture for extended periods. I am trying to find a product that would kill this plant, however we have tried a number of herbicides with no success. Any information you could send me would be greatly appreciated.


I don't know much about weed control. I suggest you contact your Extension office or U of Florida in Gainesville.