When is the earliest time to pick the new tea of Mengshan tea every year?

Tea picking in Mengshan can be divided into spring tea, summer tea and autumn tea. Tea picking is very seasonal. Spring tea is usually picked when one bud has four leaves or one bud has five leaves. When a bud with three leaves or a bud with four leaves is extracted, summer tea is harvested. Autumn tea is picked when one bud has two leaves or one bud has three leaves.

Spring tea is the best, and it was picked before the Qingming Festival (the fourth and fifth day of the solar calendar), also called tea before the Qingming Festival. At that time, there were no bugs on the tea trees, so this kind of tea can be regarded as "green" food. After Tomb-Sweeping Day, insects grew, and most tea farmers in China used pesticides. You can imagine the following ...