Core Tip: The grape swell period is the period when the grape tree grows most vigorously throughout the year, and it is also a critical period for grape production throughout the year. It is important to pay attention to this period of management.
The period of grape enlargement is the period when the vine grows most vigorously throughout the year and it is also a crucial period for the production of grapes. It is important to pay attention to this period of management.
First, branch management. For new shoots, leave 12-15 leaves to pick up. If the tips are taken before flowering, sub shoots have already occurred, then the top tips of the new shoots will be left 1-2, leaving 3-5 leaves topping and leaving the rest clear. The tendrils of the new shoots are all removed from the roots. The new shoots are tied to the wire in a timely manner to allow it to stand upright and the distance between the new shoots should be even. The sick, dry old vines were all cut off and cleared outside the garden.
Second, ear management. According to the growing trend of new spikes, the general approach is: strong two in a weak do not stay. If a new shoot has 3 ears, it must be cleared 1-2. For those who did not plant the spikes before flowering, this can be done at the same time, and go to the tip of the spike 1/5-1/4. It is necessary to remove the disease, residual and deformed fruit. If grapes are planned to be bagged, this period is the best period and it must be done quickly.
Third, pest control. At this time, the grape shoots are in adolescence, and most regions in China are not pest-prone. In case of rainy weather in the south, gray mold and the like will occur. This period is mainly prevention of disease. Can be 1:0.7:200 times the main Bordeaux mixture, during which interspersed or sprayed carbendazim, or chlorothalonil, or thiophanate-methyl, when the disease occurs, the symptomatic spraying.
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