Insects, mites and maggots slither into grow rooms, eating, reproducing and wasting weed. Outdoors, they live everywhere they can. Indoors, they live anywhere you let them. Fungi are present in the air at all times. They may be introduced by an infected plant or from air containing fungus spores. Fungi will settle down and grow if climatic conditions are right. Pests, fungi and diseases can be prevented, but if allowed to grow unchecked, extreme control measures are often necessary to eradicate them. PreventionCleanliness is the key to insect and fungus prevention. The grow room should be totally enclosed, so the environment can be controlled easily. Keep the floor clean. Keep all debris off soil surface. Do not use mulch. Insects and fungi like nice hideaway homes found in dirty dank corners and under dead decaying leaves or rotting mulch. Growers and their tools often transport many microscopic pests, diseases and fungi that could ultimately destroy the garden. This does not mean growers and their tools have to be hospital clean every time they enter a grow room, even though that would be nice. It does mean normal and regular sanitary precautions must be taken. Growers that wear clean clothes and use clean tools reduce problems immensely. A separate set of indoor tools is easy to keep clean. Pests, diseases and fungi intrinsically ride from plant to plant on dirty tools. Disinfect tools by dipping in rubbing alcohol or washing with soap and hot water after using them on each diseased plant. Another quick way to sterilize pruners is with a hand-held torch. A quick heating with the torch will sterilize metal tools immediately. Personal cleanliness is fundamental to prevent pests and diseases. Wash your hands before touching foliage and after handling diseased plants. Smart growers do not walk around the buggy outdoor garden, and visit the indoor garden; they do it vice versa. Think before entering the indoor garden and possibly contaminating it. Did you walk across a lawn covered with rust fungi or pet the dog t