Harm and Control of soft Rot of Orchid

Generally speaking, if orchids grow very strong, roots are very developed, its disease resistance is relatively strong. If orchids don't grow very well, coupled with poor maintenance, they are very easy to get sick. Orchids are susceptible to soft rot at this time of year if they are poorly ventilated. Soft rot is a serious disease and spreads rapidly. It has two forms of expression, one is from the beginning of the new seedlings, that is, when the buds have not fully grown, the roots will rot and continue to spread upward, when the disease is serious, it will lead to the death of the whole plant. The other is from the old seedlings start, if the old seedlings appear abnormal toppling grass, leaves have brownish yellow or black spots, we should pay attention to. If it is confirmed that the disease has occurred, isolation shall be carried out first, and the whole pot of grass shall be moved to a ventilated and less humid place in time, and then the diseased plants shall be poured out, and the seedlings connected with it shall be broken off together, and the remaining seedlings shall be disinfected. When spraying, spray the front and back of the leaves, and water the material until it penetrates. All materials with bacteria should be poured out, flower pots should be disinfected, and agricultural streptomycin diluted 500-1000 times can be soaked. As the disease spreads rapidly, prevention must be strengthened. Both cultivation and chemical control are very important. In cultivation and control, the conditions of shading, cooling and ventilation are good, which can form an ecological condition conducive to the growth and development of orchids but not conducive to the propagation and infection of diseases. In terms of chemical control, agricultural streptomycin can be sprayed once every 10-15 days.