The guide "Toxic Grasses on Horse Pastures" provides comprehensive information about the dangers posed by certain grasses on horse pastures. Nowadays, illnesses in horses caused by toxic plants are a serious problem. The author, Renate U. Vanselow, highlights the weaknesses of the previous fructan hypothesis and presents the toxic resistances of the most common forage grasses that are often overlooked in Europe. The book includes current research findings and specific poisoning cases that emphasize the importance of the topic. It is aimed at horse owners and professionals who wish to develop a better understanding of the risks on pastures. The third, expanded edition offers new insights and valuable information to protect the health of horses.