Roundup is a broad-spectrum herbicide that kills plants by interfering with their ability to produce essential amino acids. It is commonly used in agriculture and gardening to kill weeds, grasses, and other unwanted plants. Roundup is also effective at killing beneficial insects, such as bees and ladybugs. This can have devastating impacts on local ecosystems, as these insects play important roles in pollination and pest control. While Roundup may be effective at killing certain pests, it is important to consider the potential negative consequences before using this herbicide.