The document provides an introduction to common weeds found on cotton farms in Australia. It notes that while some weed species have been researched, most remain poorly understood and difficult to control due to varying climatic conditions, farming practices, and soil types across cotton growing regions. The document aims to summarize effective control methods for some of the more common weeds, as identified by growers and consultants. It cautions that some of the herbicide options may be off-label and not in accordance with product directions.