Reply To: Horse Manure Community › Community › General Gardening › Sowing and Growing › Horse Manure › Reply To: Horse Manure 18th May 2018 at 4:08 am #46882 charlesModerator Hi Mark and this is so maddening. I attach two photos of growth in normal and aminopyralid-affected compost, to help any others with identifying the issue. Symptoms include curling of new leaves, pale colour and small size. Attachments:You must be logged in to view attached files.