Pimelea neo‐anglica poisoning of cattle

weight the nitrogen content of the 2 pastures is similar, whereas the irrigated pasture contains less than half the fibre content of the natural pasture. This difference may have induced a craving for fibre by the horses resulting in increased bark chewing. Of the trees exposed, those most severely chewed were the spongy stringy barked types, Eucalyptus microcorys (yellow tallow wood) and Eucalyptus robusta (swamp mahogany), and the half barked Eucalyptus tessellaris (Moreton Bay ash). The gum bark Eucalyptus tereticornis (blue gum) and Eucalyptus melliodora (yellow box) were mildly chewed and the iron barked Eucalyptus crebra (narrow leaved ironbark) was only slightly chewed near the base. These observations suggest that where horses are intensively grazed on irrigated pasture eucalypts should be protected and those of the spongy stringy barked types avoided when planting in areas to be grazed by horses.