By reducing the use of chemical fertilizers and toxic substances such as insecticides, herbicides be used as manure and compost instead of pesticides using predatory parasitoids to control a fall together. Also, it can grow crops to absorb toxins from the soil.
By reducing the use of chemical fertilizer and their toxic, such as insecticides, herbicide, change to use manure compost instead, and the pest by predators. Parasite that control the city together. .