Why do grapes need to be thinned with flowers and fruits? Time for thinning grapes with flowers and fruits

1. Grape fruits are overloaded, which not only consumes nutrients and affects fruit growth, but also causes fruit sizes to vary, irregular fruit shape, no coloring or difficulty in coloring, inconsistent maturity periods, reduced quality, and easy to Cause premature decline of tree vigor. Therefore, it is necessary to achieve reasonable flower and fruit thinning to achieve a reasonable plant load, increase fruit size, and achieve high and stable yields and improved fruit quality.

2. The fruit thinning time is set after flowering and fruit setting. Generally, when the fruit is about the size of a soybean and the quality can be distinguished, it should be carried out immediately, preferably sooner rather than later. Remove diseased and pest-infected fruits, malformed fruits with poor fertilization, small seedless fruits, and fruits with the top of the fruit facing inward and sandwiched between the ears. Generally, it is more appropriate to leave 30-50 grains per ear.