1、 Pruning time

The pruning of Southern grapes is recommended to be carried out between 20 days after defoliation and 15 days before germination, usually between December and January, not too early or too late. If pruned too early, it will reduce its cold resistance. If pruned too late, it has begun to germinate, which is easy to lead to bleeding, which will weaken the tree potential and be unfavorable to its later growth

2、 Pruning method

1. Short shoot pruning: pruning depends on the specific growth and variety of the tree. If it is a European and American hybrid, it is recommended to use the short shoot pruning method. Only 2-3 buds are left on the branch in that year, which can save a lot of nutrients and be conducive to flowering and fruiting in the later stage

2. Middle shoot pruning: this method is suitable for trees with high fruiting branch rate, medium growth and low flower bud location, such as red earth and ruby. After pruning, leave 4-7 bud eyes on the current year's branches

3. Long shoot pruning: this method is suitable for tree species with vigorous growth, low fruiting branch rate and high flower bud growth position, such as chryson, beauty finger and other varieties. After pruning, leave 8-11 buds in the current year

3、 Precautions for trimming

Attention should be paid to the specific pruning position. The cutting mouth should not be too close to the bud eye, otherwise it is easy to cause water loss and the bud eye cannot germinate better. In addition, pay attention to the length of branches. Those with strong growth should be longer, and those with weak growth should naturally be shorter