我地8月份是柑桔果实迅速生长膨大期,这一时期的病虫为害直接导致柑桔后期落果。据调查,我县山地早熟温州蜜柑后期落果严重的高达30％～35％,轻者也不低于10％。引起落果的主要病害为柑桔炭疽病,虫害有卷叶蛾,长吻蝽、桔绿天牛、吸果夜蛾等。为此,我县采取了以下防治措施,近两年后期落果明显减少,产量显著提高。 My August is the rapid growth of citrus fruit swollen period, the pest damage during this period led directly to the late fruit drop citrus. According to the survey, my county early mountain mandarin orange late fall serious as high as 30% to 35%, light no less than 10%. The main diseases caused by falling fruit citrus anthracnose, insect pest leaf roll moth, long-nosed bugs, orange green beetle, fruit-bearing moth and so on. To this end, our county has adopted the following prevention and treatment measures, the drop in the last two years significantly reduced the output significantly increased.