Complex sentence: Ragwort (Senecio jacobae) has received an enormous amount of condemnation on account of its toxicity to horses; in fact much of the negative publicity is based on myth and misinformation, and its destruction usually does more harm than good.
Split into simpler sentences: Ragwort (Senecio jacobae) has received an enormous amount of condemnation on account of its toxicity to horses. In fact, much of the negative publicity is based on myth and misinformation, and its destruction usually does more harm than good.