It is suggested that you spray high-quality foliar fertilizer on young trees, which is full of nutrients and easy to be absorbed by plants. Such as humic acid Kangbao, Nongfugang, Jin Lu, You Zhu, brassinolide, etc. Foliage fertilizer should be combined with drugs to prevent and control pests and diseases. When spraying, it is generally sprayed 1 time when the new bud is about 3 mm, when it grows to a big leaf, and when it is close to dark green.

For example, when the new shoots grow to about 3 mm, 3% acetamiprid EC can be used 2,500 times, and 120 ml of humic acid Kangbao or Nongfugang and 60 ml of 0.004% nongfengsu brassinolide can be added to every 60 liters (kg) of diluent to control pests such as liriomyza sativae, thrips and whiteflies. Leaf fertilizer is used to promote the development of root system, strengthen the photosynthetic intensity of leaves, and brassinolide is used to improve the stress resistance of plants such as disease resistance and drought resistance For the second application, 5000 times of 3% avermectin EC (three-dimensional) solution can be used, and 60 ml of foliar fertilizer and 25% prochloraz EC can be added to every 60 liters of diluent to control leaf-eating pests, red spiders and so on. And prevent anthrax; For the third time, 800 times of chlorpyrifos EC (Junjunwang) can be used, and Jin Lu or You Zhu and brassinolide, 60 ml of 10% difenoconazole aqueous solution or 75 g of 70% thiophanate-methyl wettable powder can be added to every 60 kg of diluent to prevent fungal diseases such as anthracnose. In addition, when spraying the above fertilizers and liquid medicine, attention should be paid to spraying on the back of leaves, so that the drugs and fertilizers can easily enter the plants.