<human>:  How does one keep a garden pest-free?
<bot>: One way to keep a garden pest-free is to remove any debris, weeds, and rotting vegetation from the area. It is important to also use preventative measures such as proper plant selection, using row covers and floating row covers to protect vulnerable plants, and creating physical barriers to separate gardens from possible sources of pest invasion. Applying insecticides as needed is another option, but should only be used as a last resort. If a chemical pesticide is used, it is important to read the instructions thoroughly and follow all safety precautions.