May-July.

The fruit harvest period is from May to July, depending on the variety and region. After the fruit develops, blooms and is fertilized, the ovary begins to expand, and it increases rapidly after about 1.5 months. It grows very slowly or not at all 10-15 days before picking the fruit. At this time, it is mainly thickening, filling and weight gain. From flowering to mature fruit, it takes 85-110 days for early-maturing varieties, 100-120 days for medium-maturing varieties, and 120-150 days for late-maturing varieties.

During the fruit development period, there are two obvious fruit drop peaks: the first time is about two weeks after flowering, which is mainly due to the small fruits with poor fertilization turning yellow and falling off, and the fruit drop amount is large; the second time is after flowering. 4-7 weeks, except for a small part of malformed fruits or aborted fruits with stunted development, more fruit drop is caused by insufficient nutrients and water. Physiological fruit drop rarely occurs after 2.5 months after flowering. By 80-85 days, only wind damage, fruit cracking or diseases and insect pests will cause fruit drop.

Extended information:

Mango trees bloom naturally from December every year to January-February of the following year, sometimes as early as November or as late as March of the following year. The peak flowering period is during the Spring Festival. before and after. It takes 15-25 days for an inflorescence to bloom from the first flower to the entire inflorescence, and the flowering period of a tree is about 50 days. Mango flowers have bisexual flowers and male flowers. The bisexual flowers have normally developed stamens and pistils, which can carry out normal pollination, fertilization and fruiting; the male flowers have no pistils and cannot bear fruit after blooming. Most cultivated varieties have bisexual flowers accounting for more than 15%. It takes about 1.5 days from the time the petals unfold to the time the stigma dries up for a flower.

Flower bud differentiation Under normal circumstances, mango flower bud differentiation begins from late October to November. Using flower accelerators may cause differentiation at any time. It takes 20-39 days from the differentiation of flower buds to the opening of the first flower in the inflorescence, but the inflorescence continues to elongate after the first flower opens. Appropriate low temperature and drought are conducive to flower bud differentiation; high temperature is conducive to the formation of bisexual flowers.

Reference: Baidu Encyclopedia-Mango