Abstract
The gummosis caused by Phytophthora spp. is one major citrus diseases in the whole world. Planting of healthy seedling is one of most important means of disease control. The LAGEM of UFSCar is one of the licensed laboratories by the Ministry of Agriculture to carried out diagnostic service for Phytophthora detection on citrus seedling, in order to comply with the state law on citrus seddl…