The production of healthy bedding material of grapes are extremely complex and responsible work, which needs high qualifications and knowledge from different aspects. Bedding material can transmit many diseases and pests, and has a bad influence in susceptibility, developing and fruitfulness in grapes.
The some problem makes bacterial crown gall indicated by Agrobacterium tumefaciens. The bacterium with its products, affect the meristem tissues and develop tumor tissues. So, the bacterium has an indirect influence perturbing leaf vein and root system. Diseased grafts have got a slow advancement and soon they decay
