柑桔果实在高温伏旱期,由于受酷热和强烈光照的影响,特别是树冠中上部的果实受光面出现灼伤而形成日烧果(日灼果)。一般以枳砧早熟温州蜜柑受害较重,日烧果可达30%,其受害果实表面出现凹陷的褐色斑块,果皮质地变硬,囊瓣失水干枯,使果实失去商品价值,其防治方法是: Citrus fruit in the high temperature and drought period, due to the heat and intense light effects, especially the upper part of the crown of the fruit burns the light surface and the formation of Burning fruit (sunburn fruit). Generally, the citrus fruit of Hovenia dulcis Thunb. Is severely damaged, with 30% burned fruit on the day. The brown fruit plaque appears on the surface of the damaged fruit, the texture of the fruit cortex hardens and the dehydration of the sachet leaves the fruit lose its commercial value. Yes: