... greenhouse , cultivate locust, and so on. The insect net also can apply for protecting hailstone ,wind, ultraviolet, radiation, and the insects ... .For example: aphid,lady bug, moth ect. When you use the insect net , you do not need ... used 3-5years.1. When the vegetables are covered with insect net , it enable vegetables avoid pieris ,xylostella. mamestra brassicae, ...