... , ect.Use :Vegetable greenhouse , cultivate locust, and so on. The insect net also can apply for protecting hailstone ,wind, ultraviolet, radiation ... used 3-5years.1. When the vegetables are covered with insect net , it enable vegetables avoid pieris ,xylostella. mamestra brassicae, ... , it can increase income is about 800RMB.2. The virus disease is the disaster for the all kinds of vegetables, it ...