Pesticides are chemicals used to kill or control pests that can harm crops, plants, and even animals. These pests include insects, weeds, and fungi that can damage food supplies and gardens. Farmers often use pesticides to protect their harvests and ensure a good yield, which helps provide food for everyone. While pesticides can be helpful, they can also pose risks to the environment and human health. Some people worry about the effects of pesticides on pollinators like bees and butterflies, which are essential for plant reproduction. It's important to use pesticides carefully and consider safer alternatives when possible.