Prevent sunburn on the branches to brush whitening agent on the branches. The white coating agent is prepared by adding lime and other raw materials and applying a soft brush on the main trunk and large branches so as to apply to the tree without advancing down the flow and sticking to the thin layer and sticking a layer. Quicklime requires white lumps and should be thoroughly and thoroughly added with water. If the hardened lime with incomplete melting is brushed onto the trunk, the hard particles will absorb the moisture on the trunk and exotherm, resulting in burned bark, especially light and thin-skinned citrus varieties.
The prevention of fruit sunburn 1 high temperature dry orange sulphate is best not to use lime sulfur early, must be used to strictly control the concentration of 0.1 to 0.2 Baume degree is appropriate, and pay attention to the amount of spray, do not let the liquid on the fruit surface condensation , otherwise it will induce and aggravate the sunburn of the fruit. 2 When high temperature and drought, water should be promptly irrigated to regulate soil moisture and microclimate in the orchard. 3 Regular inspections. Once the victims are found, they can cover the affected parts with a small white paper or lime slurry of 1:20. In this way, the damaged fruit can return to normal after a few days.
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