琯溪蜜柚黑斑病是近年发生在琯溪蜜柚上一种重要的检疫性病害。该病具有四大特点,即传播蔓延快,2007年只有个别地方发生,2010年已扩大到全县多数琯溪蜜柚种植乡镇:危害严重,受害果园一般果实发病率在10%～15%,严重的达30%以上;防治难,病菌潜伏于果实表皮内长达2-3个月,药液难以渗入表皮发 Guanxi honey pomelo black spot disease occurred in recent years Guanxi honey pummelo an important quarantine disease. The disease has four major characteristics, that spread spread quickly, only in some places in 2007, has been extended to the county in 2010 most of the Guanxi honey pomelo planting township: a serious harm to victims of orchard general fruit incidence of 10% to 15% Serious up to 30%; prevention and treatment difficult, latent bacteria in the epidermis of the fruit up to 2-3 months, the liquid is difficult to infiltrate the epidermis