2. The maintenance management of Castanopsis fissa after cultivation mainly includes pruning, shaping, fertilization and watering. Stump should be put in a flowerpot, and special culture soil should be used. The formula is: 3 parts of field soil, 3 parts of mountain soil, 2 parts of humus soil, compost 1 part, bone meal 1 part, fully decomposed, dried, finely divided, sieved and potted for later use. When Castanopsis kawakamii piles are cultivated, the roots and claws should be further exposed, and then they should be cultivated in pots. Try to block the sun for the first few days, gradually increase the light after ten days and a half, and normal management can be carried out in one month. Rational fertilization of Castanopsis kawakamii pile bonsai depends on the nutrients in the soil in the basin. When it grows for a certain period of time, various symptoms of fertilizer deficiency will appear. Therefore, nutrition must be supplemented at this time, otherwise the branches and leaves will not grow well.
3. kudzu vine is a tall deciduous tree. Its stem is stout and its tree shape is strange. Dense branches, large branches extending horizontally, and branchlets obliquely bent. The leaves are dense and oily green. At present, there are three common diseases and insect pests of pueraria lobata. They are leaf diseases and scale insects, gray silkworm moths. Prevention and control methods: (1) Leaf diseases: yellow-brown or black spots, curved leaves, withering and early defoliation usually appear, which may be chlorosis and powdery mildew. Can remove leaf spot and spray Bordeaux solution; Yellowing disease can be sprayed on leaves with 0. 1 ~ 0.2 ferrous sulfate solution; Powdery mildew can be sprayed with sulfur mixture with Baume degree of 0.3 ~ 0.5. (2) Scale insects: There are many kinds of hazards. It is a sap-sucking pest with poor growth and yellow branches and leaves.