When is the grape bagged?

Grapes should be bagged from May to June, and bagged before mid-June. Bagging is generally carried out 15-20 days after fruit setting, that is, bagging can be carried out after the grapes grow to the size of beans. When bagging, you should choose a good time, preferably when it is sunny, 9- 1 1 or 2-6 pm.