Other management measures of Australian nut orchards

1. Beekeeping in orchards

Nuts are insect-pollinated flowers, pollination, pollination of the main insects are bees, wasps, flies, thrips and so on. Raising bees in orchards greatly increases the probability of pollination and pollination among plants and varieties, which is of great benefit to the increase of yield.

Second, frost prevention

The cold resistance of nuts is relatively stable, in normal years, in Guangxi, Guangdong, Xishuangbanna and other areas, nuts will not occur frost damage, combined with disease prevention and insect resistance white tree trunk can be in winter. In Panxi region of Sichuan Province, the low temperature lasts for a long time in winter (30-50 days), especially at night (the temperature difference between day and night is about 10 ℃). Nuts are prone to frost injury. In winter, in addition to coating white branches, film and cold-proof materials are also used to cover the trunk.

Third, sunscreen

When the temperature is ≥ 30 ℃, some nut varieties, such as 34 and 856, the immature leaves of the new shoots turn yellow, and the serious ones dry up; after the high temperature season, the new shoots (leaves) return to normal, and the plant growth is not greatly affected, which is more obvious in the young tree stage (1 ~ 4 years), and this phenomenon will weaken or even not occur with the increase of tree age. On the other hand, in the dry and hot areas at low elevations (about 600 meters), such as Jinghong, Yunnan, the temperature is lower at night in the high temperature and dry season (from March to April). The bark of the stem of nuts will burst when they are exposed to the sun in the morning. In the hot and dry season in this area, the stem of the plant should be bandaged with weeds and other materials to prevent exposure, and the already cracked stem should be dried with lime paste or other paint mixed with 0.05% 0.1% methyl topiramate or other fungicides to prevent or reduce wound infection.