After the fruit trees are defoliated, the weeds, fallen leaves, fruit drop and diseased branches in the orchard should be promptly removed, and buried deep or concentrated. At the same time, in conjunction with winter pruning, cut off those branches with diseases and insect pests, such as diseased branches, dead fruits, dead fruits, etc. After cutting and cleaning and concentrating on burning, we can eliminate the pests that overwintered above. Deep turning, scraping skin. Generally, the depth of the garden is 30-40 cm. The closer the time is to the soil, the better the freezing effect. At this time, the pest has entered a dormant state and cannot be re-entered into the winter. Scrape the bark to remove the pests and diseases. After scraping the skin, the tree general can be disinfected and the rough hides can be buried or burned. The trunk is white. The calcine is converted into lime milk, and then salt, soy flour, lime sulfur and vegetable oil are added. If a new high fat film and a targeted insecticide are added to the whitening agent, the pest control effect is better. A greenhouse(also called hothouse)is a building or complex in which allow for greater control over the growing environment of plants. Depending upon the technical specification of a greenhouse, key factors which may be controlled include temperature, levels of light and shade, irrigation, fertilizer application, and atmospheric humidity. Greenhouse may be used to overcome shortcomings in the growing qualities of a piece of land, such as a short growing season or poor light levels, greenhouses are often used for growing flowers, vegetables, fruits, transplants and seedlings. Greenhouses can be divided into glass greenhouses and plastic greenhouses. Plastics mostly used are polyethylene film and multiwall sheets of polycarbonate material, or PMMA acrylic glass. Commercial glass greenhouse are often high-tech production facilities for vegetables or flowers. The glass greenhouse are filled with equipment such as screening installations, heating, cooling and lighting, and may be automatically controlled by a computer. Agriculture Greenhouse,Plastic Film Greenhouse,Glass Greenhouse,Pc Board Greenhouse JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , https://www.skyplantgreenhouse.com