How to manage the pollination period of litchi?

How to manage the pollination period of litchi? Litchi that should be paid attention to are insect-pollinated and wind-pollinated flowers of dioecious flowers, which are mainly pollinated by insects. The pollen mass carried by the hind foot of a bee has about 8 million pollen, and the stigma of a female flower can be transmitted as long as there is a normally developed pollen. This shows how important the role of bees in pollination is. According to observation, bees are most active within a radius of 250m, so bees are best scattered in the orchard, usually on a sunny day with a temperature of 22: 25 ℃ and a relative humidity of 75% to 80%. Litchi flowers have the most honey and bees are the most active. Bees should enter the orchard when a small number of the first flowers bloom. In addition, spraying pesticides should be stopped in litchi orchards and nearby orchards or vegetable gardens during bee release. In case the bees are poisoned, or the flowers are contaminated and the bees do not go to the trees to collect honey, which affects pollination. During flowering, if there are no bees or few bees, flies and other insects can also be attracted to the orchard, which is also very helpful to the pollination of litchi. The specific method is to put some stinky salted fish in the orchard to attract flies. After insects such as flies enter the orchard, bury the salted fish in the soil, so as to prevent flies from crawling on the salted fish instead of pollinating on the trees. Therefore, in production, in order to create good conditions for poplar fertilization and stop spraying pesticides at flowering stage, the prevention and control of diseases and insect pests should be done in time before litchi blossoms. The importance of artificial pollination the female flower of litchi must complete the process of pollination and fertilization before the ovary can start development. therefore, the conditions for pollination and fertilization should be created during the litchi flowering period. on a sunny day, insects such as bees can be used for pollination, but there are few bee sources, or when it is rainy and sunny, because the bees do not go up the tree, and the pollen sac of the male flower does not crack because of high humidity and does not emit pollen. Artificial pollination plays an important role. Mature pollen can be picked manually and placed in a drying box to absorb moisture and dry. The pollen sac cracks and spreads out pollen, and then artificial pollination is carried out to transfer the pollen to the opening female flower stigma. Make it complete the normal pollination and fertilization process, so that the fruit starts to develop, otherwise, the flower and fruit will also fall, seriously affecting fruit setting. In addition, during flowering, litchi and longan pollinator "Liguo 123" lmuri is sprayed twice. In sunny days, it can be sprayed from 9: 00:00 to 11: 00:00 in sunny days, while in rainy days, it should be sprayed on sunny days. In female flowers, it can be sprayed twice every other day, and on the second day after high temperature drying, clear water is sprayed again. The effect is better: it can increase the pollen germination rate by nearly one time. The elongation rate of pollen tube increased by more than 30%, which significantly increased the fruit setting rate of litchi fertilization. Click to get more litchi planting techniques click to get more fruit planting techniques