The main enemies of Chinese cabbage are fleas, Cabbage white caterpillars and nudibranchs, which must be fought in good time.
The flea beetles are particularly dangerous to young plants. But where people pour diligently, they can't do much damage. In case of heavy occurrence, the plants are dusted with ground flea powder. The plants are protected against being eaten by slugs by laying out snail baits. When the flight of cabbage whites can be observed, the Chinese cabbage must be constantly checked for eggs of this butterfly. The yellowish clusters of eggs can be found on the underside of the leaves. If you destroy them immediately, you save yourself the hassle of searching the plants for caterpillars.