In addition to the effects of ordinary plastic film warming, moisture preservation, disease prevention, but also can reflect ultraviolet rays, effective repelling aphids, increase the reflection of the ground light, conducive to fruit coloring, used in summer vegetable cultivation, can reduce the ground temperature; At the same time, light reflection can also inhibit the growth of weeds under the film. Mainly used for warm and sunny crops and winged aphids damage crops and orchards.