How should flowers get bacterial soft rot?

Soft rot: mainly harms flowers such as gladiolus, cyclamen, calla lilies, lilies, cacti, dahlias and so on. Damage to leaves or stems. Usually, the affected parts show water stains at first, then turn brown, then become sticky, soft and rotten, and the soft rotten tissue is mixed with white, yellow or grayish brown thick liquid and gives off a foul smell.

Bacterial soft rot: the pathogen overwinters on the host residue or in the soil, and the environment in the next spring is suitable to invade the host tissue. The humid weather is conducive to the reproduction and spread of germs. The host is injured by insects, causing a large number of injuries to □, which is beneficial to bacteria invading people. The application of immature organic fertilizer will also aggravate the disease. The root is injured by ploughing, the soil is heavy, the drainage is poor, and the disease is also serious.

The prevention and control measures are as follows:

Avoid continuous cropping when planting in ①; pay attention to changing pots in pots and apply fully mature fertilizer.

② can control pests in time and reduce all kinds of damage to □.

Spraying agricultural streptomycin solution in time after the onset of ③, focusing on the rhizosphere soil of diseased plants and their surrounding healthy plants, was sprayed about once every half a month for 2 or 3 consecutive times, that is, the spread of the disease could be controlled.