Damping-off
pathogen’, meaning that it can usually only affect plants that are in a sub-optimal condition or suffer from stress, caused for example by too much water [...] In slightly older plants, the leaves lose their turgor or the leaf tips turn yellow, for example in flower bulbs. At first, the plants recover during the [...] Pythium can survive very well in the soil or substrate in the absence of plants. Many species are entirely saprophytic, so these do not harm plants. How to