How to control diseases of red grape in summer?

How to control diseases of red grape in summer? Please give guidance to summer red grapes can refer to the following methods to control diseases: 1. Clear the garden: if there is a disease in the vineyard and there is a lot of rain at this time, clear the garden at any time and remove the diseased leaves, branches and fruits from the garden. Deep burial or burning. At the same time, timely removal of weeds in the garden, in cutting off diseased branches, diseased fruit, should often wash scissors, and disinfection, to prevent cross-infection. 2. Loosening the soil: in the rainy season in summer and autumn, especially after heavy rain and heavy rain, Rain Water will harden the soil surface of the vineyard and cause poor soil permeability, resulting in anoxia of grape roots, weakening of tree potential and reduced stress resistance, which is prone to diseases. Therefore, the soil should be ploughed once in time before the rain or between the rain stops in order to improve the permeability of the garden soil. 3, treatment: continuous rain or high temperature and humidity, grapes are most susceptible to disease, should be a comprehensive observation in the vineyard once a day, see the onset of the disease, spray immediately. Such as downy mildew, if you see a few places in the garden, even if the disease is found on a grape, spray immediately. 4. Clear the tip: pick the heart of the grape in time and wipe off the secondary tip in time. At the same time, some of the plants with too many new shoots should be removed, which is beneficial to ventilation and light transmission and improve stress resistance. 5. Fertilization: too much Rain Water will often cause the loss of orchard fertility, weaken the tree potential and reduce its stress resistance. Therefore, in the rainy season, timely fertilization should be applied according to the soil fertility loss of the vineyard and the growth of grapes. Fertilization should be based on the principle of "eat less and eat more". Fertilizer should be applied less and frequently; extra-root topdressing is generally combined with spraying, and it is best to spray high-efficiency fruit foliar fertilizer alone. Click to get more grape planting techniques click to get more fruit planting techniques