How can I test for aminopyralid residue in my manure?
The simplest and quickest option is to ask your manure supplier the following questions: • Did their animal manure come from a farm or equine business where the herbicide products Forefront, Pharaoh, or Banish have been previously applied? If the answer is no, then the animal manure should be free of aminopyralid . • Were the animals that produced the manure fed on forage eg Hay, haylage or silage that had been produced from grass treated with Forefront, Pharaoh or Banish? If the answer is no, then the animal manure should be free of aminopyralid. Another option is to test the manure using a sensitive crop: • Thoroughly mix manure with a multi-purpose compost in a clean bucket using 1 part manure to 1 part compost. Prepare enough to fill four 5-inch pots. • Fill another four clean pots solely with multi-purpose compost. These will be the untreated comparisons. • Place each of the pots in a separate saucer to prevent water from one pot reaching another. • Water the pots and leave to sta
