The natural conditions available outdoors in the summer make it a perfect time to experiment with the various types of hydroponic cultivation. Annual flowers, fruit, herbs, and vegetables do exceptionally well with hydroponics. With hydroponics, important growing factors such as light, temperature, and humidity can be controlled. Environmental control systems were being developed to help growers provide the ideal plant environment in addition to the ideal plant diet. Commercial crop growers are turning to soil less cultivation more and more. The speed of growth combined with the control over the growing environment means higher quality crops. In areas where food is traditionally produced, but where fields are over crowded or stripped of their nutrients, hydroponics is a way food can be produced using a minimum of space and resources. Hydroponic growth leads to an increase in production over traditional farming in two ways. For one, hydroponic gardening just plain saves space. It can be used outdoors in a greenhouse but the bug problem and their potential diseases need to be addressed in order to save your plants from their adverse effects. The most popular method of generating carbon dioxide for your hydroponic plants is the use of a pressurized carbon dioxide system. The equipment is relatively inexpensive (under $500) and the operating expense is low. It’s important to check under leaves, around the stems and in the growing medium or soil for signs of spider mites. If there are tiny holes in any of your plants or crops, this could be a sign that spider mites are lurking. If there is a large infestation then there will be webbing visible after a light misting of the plants' leaves. In addition, for optimal absorption of the nutrient solution, air must be allowed to circulate around the roots of the plants. Plants that are constantly waterlogged will not thrive and their leaves will eventually fall off. Nutrient solutions can be made by the home gardener or purchased pre-mixed from a variety of sources.