These environmental controls typically inhibit plant diseases through two methods. The first method is to maintain environmental conditions that directly impact and inhibit diseases, fungus, and pests. For example, by monitoring and controlling environmental conditions such as temperature and humidity, the risk of botrytis infection in leaves are reduced as the environment is not conducive for disease proliferation. The second method is to provide environmental conditions that promote the plant’s natural disease prevention mechanisms, whereby indirectly inhibiting the effects of plant diseases. This method has been explored through light experiments with peppers. For example, peppers grown under blue light conditions showed more resilience to powdery mildew.