Grape black pox disease prevention and control methods:
Use resistant varieties. Such as mountain cable, white bananas, elegant fragrance, crystal, gold and so on. Avoid separate, excessive application of nitrogen fertilizers. Appropriate application of phosphorus and potassium fertilizers to increase tree vigor and prevent shoots growing long; reasonable adjustment of stems and branches, so that it can be distributed evenly, so that the trees have good ventilation and light transmission.
Since the initial infestation of black pox mainly comes from the overwintering mycelium on the body of the disease, after the fall of the grapes, the defoliation and disease ear in the garden are cleared; in the winter pruning, the diseased shoots and residual diseased fruits are cut off and scraped off. Disease, old bark, completely remove the dead branches, fallen leaves, rotten fruit, etc. in the orchard, and burn them together.
Radian Core Laser Tracker,Laser Tracker Radian Core,Laser Tracker With Battery Power,Core 3D Laser Tracker
Automated Precision Inc. , https://www.apiasean.com