树木“涂白剂”配制及施用树木冬季涂白具有防止冻害、消灭越冬害虫等好处。为提高涂白的质量，必须注意科学配制涂白剂和适时涂白。常用的涂白剂有两种：一是果树用涂白剂，配制比例为：生石灰２５公斤、硫磺粉０７５公斤、食盐１２５公斤、植物油０１公斤、豆面... Trees “Tu Baiji” preparation and application of trees in winter with white to prevent frost damage, the elimination of overwintering pests and other benefits. In order to improve the quality of white coating, we must pay attention to the scientific preparation of white paint and apply white timely. There are two kinds of commonly used coating agent: First, fruit trees with white agent, preparation ratio: 2 kg of quick lime, sulfur powder 0  75 kg, salt 1  25 kg, vegetable oil 0  1 kg, bean noodles. .