How should orchid rhizome rot be prevented and treated?
Orchid rhizome rot is a bacterial disease. It mainly occurs on the tiller buds. Initially, a water-soaked lesion the size of a mung bean appears at the base of the bud, which later becomes a dark green, scald-like large patch that extends to the outside of the bud sheath, showing dark brown rot; diseased leaves are easy to pull out. Control measures: ① Control soil moisture content; for already diseased potted flowers, stop watering...
Orchid rhizome rot is a bacterial disease. It mainly occurs on the tiller buds. Initially, a water-soaked lesion the size of a mung bean appears at the base of the bud, which later becomes a dark green, scald-like large patch that extends to the outside of the bud sheath, showing dark brown rot; diseased leaves are easy to pull out.
Control measures:
① Control soil moisture content; for already diseased potted flowers, stop watering, and only water after the disease is under control;
② When new shoots emerge 4-5 cm above the soil, spraying with 0.01% boric acid solution or 1000-fold dilute solutions of diguanshuang or shakuijing all have a certain effect, and streptomycin can also be used for control.