In adition, water films dry up more quickly than water droplets. This prevents undesired long time presence of water droplets on vulnerable orchid parts such as young shoots thus reducing the potential hazard of young shoot rot, etc. Roots need circulation of fresh air and oxygen to prevent rot, etc. In addition, the presence of oxygen releasing materials reduces the presence of undesired fungi and pests. Fertilizers should comprise oxygen releasing agents in order to reduce the presence of undesired organisms therewith reducing rot and other undesired effects.
Bugs are a potential hazard to orchids.
The presence of bugs can be reduced with pesticides or with bug discouraging materials. A well balanced and engineereed fertilizer mixture could contain bug discouraging materials. Often such bug discouraging materials comprise ingredients that do not act chemically on bugs like a pesticide does, but act physically on bugs like discomforting them through deregulating their breathing system and the like. The acidification of orchid potting mix is the biggest potential hazard for the healthy growth of orchids. The pH of the orchid potting mix after watering increases continuously as a consequence of the decay products generated by micro-organisms during the decay of orchid potting mix.