Brown Plant Hopper (BPH) in Rice: Identification, Symptoms, and Effect Khethari How to Grow Vegetables on Mars Scientific American Plants can communicate with each other through volatile organic compounds (VOCs). When a plant is under threat, like an insect attack or drought, it releases VOCs into the air, alerting nearby plants Grote bomen planten Groeigarantie, watergift en vochtmonitoring Life cycle of Brown plant hopper Download Scientific Diagram