The rainy season is generally a highly anticipated season for many people, especially farmers, especially in helping the irrigation or irrigation process. But on the other hand, the high rainfall is also worth watching out for, especially the impact that causes high humidity that is suitable to be an environment for the growth of several types of plant disease pests (HPT). One of them is a soft rot disease.

In cauliflower plants, a soft rot disease caused by the pathogen Erwinia spp. attacking parts of leaves and flowers. Early symptoms can be observed from wet, brownish-black rotten leaves that are long torn and falling. At the base of the stricken flower, there will be wounds such as hot water, then develop quickly into brown color and give off a foul smell. Infection can spread quickly throughout the flower and can lead to crop failure if not treated appropriately.

Infection usually begins in the wounded part of the plant, generally due to the cultivation process, or the attack of insects. Its spread can be carried out through the flow of water and insects. The disease can develop rapidly at temperatures of 25°C-35°C, humid conditions, and high rainfall so the disease is often found in the middle and high plains.

Non-chemical treatment can be done in the prevention phase, namely avoiding the cultivation process and control of vector insects. While chemically, the application of insecticides with the active ingredient copper hydroxide can be an option to suppress the growth rate of vector insect populations.