The nature of the plant or tree disease caused by three main factors causing the disease are susceptible to disease and harsh environments. When these factors are all three aspects of the plant, it is a disease. This process is commonly referred to as That plant disease triangle. We can apply the principles of plant disease triangle used in the management or control. Not to plant diseases by controlling these three factors are not the cause of disease control. Control the susceptible plants And the control environment is not suitable for the disease. There are several ways to control the disease May use one or several methods together. If using several methods together Called Integrated Control. This is how the most powerful addition. Reduce production costs, but also improves safety even more.