Xp 820 is the only ear tag worldwide to contain a macrocyclic lactone. Labeled for use on beef and non-lactating dairy cattle, including calves. Controls horn flies, gulf coast ticks, spinose ear ticks, and aids in control of american dog ticks. Also controls cattle fever ticks (boophilus species), lone star ticks, and reduces face flies. Has no objectionable odor. Ideal for rotation with all other insecticide ear tags for management of insecticide resistance Abamectin And Piperonyl Butoxide.