2. Pruning continues to prune garden hedges and ball ornamental plants with vigorous growth and strong germination, which is also the last pruning of ball games in the growing season in the northern region this year. The garden hedges and color block trees suitable for pruning mainly include Buxus, france holly, Photinia, Ligustrum lucidum, Ligustrum lucidum, Berberis rubra, Ligustrum lucidum, Platycladus orientalis and so on. The ball ornamental plants suitable for pruning are: cypress, juniper, boxwood, bayberry, holly, heather, pittosporum, pyracantha, Admiralty and so on. There are: a bunch of red, amaranth, sulfur chrysanthemum, Kochia scoparia, marigold, malachite and so on. It is advisable to pick the heart every 1 days to promote the formation of a full plant shape, and to have more inflorescences on the lateral tips, and stop picking the heart after the end of September. For woody flowers planted in the ground that have been blooming for a long time, such as variety rose, abundant rose, miniature rose, vine rose, crape myrtle, pomegranate, five-color plum, triangle flower, etc., it is necessary to cut off the residual flowers and stems in time, and moderately cut the branches that have bloomed, which can effectively promote their flowering again.
3. Watering in September, the climate is relatively dry. It is one of the key measures to consolidate the survival effect of trees and flowering shrubs transplanted in the courtyard in that spring by continuing to do a good job in watering and spraying water. One is to water the roots to keep the soil moist, but not to accumulate water; The second is to spray water on the straw rope wrapped around the trunk to create a partially wet protective layer for the trunk; The third is to spray water on the canopy to reduce leaf transpiration and increase the humidity of local space. In addition, for the newly planted grass flowers, we should also do a good job of water spraying and moisturizing.
4. Fertilize the colored foliage plants planted in the ground, such as Ligustrum lucidum, Berberis rubra, Hongfeng, Carthamus tinctorius, Alpinia speciosa, alternifolia, coral with golden peach leaves, red mulberry, dwarf cherry with red leaves, plum with red leaves, peach with red leaves, etc. In order to keep their bright leaf colors, appropriate topdressing of phosphorus and potassium fertilizer should be applied. For ground-planted flowers and trees, such as Lagerstroemia indica, Rosa rugosa, Cinnamomum cassia, Four Seasons Orange, Pomegranate, Lobelia, Hibiscus hibiscus, Chrysanthemum, Canna, Dahlia, Five-colored plum, Nandina chinensis, Pyracantha fortunei, Ardisia crenata, Kumquat, etc., and a large number of ground-planted autumn grass flowers, it is advisable to topdressing with quick-acting fertilizer with balanced nitrogen, phosphorus and potassium. For kumquat, osmanthus fragrans and osmanthus fragrans, fertilization can be stopped during the flowering period.
5. Pest control: 9% trichlorfon crystal can be sprayed with 8 times solution to control the green thorn moth which harms crape myrtle, pyracantha fortuneana, begonia and other flowers and trees; For Anoplophora longicorn, which harms Lagerstroemia indica, papaya and begonia, a poison stick can be inserted from the wormhole to prevent and control it; Powdery mildew on rose and chrysanthemum plants can be prevented and treated with 1 times solution of 5% carbendazim wettable powder at the early stage of the disease. 6. Woody ornamental plants that can be harvested are mainly flowers and trees of Magnoliaceae. For example, the female flower, the smiling face, the purple magnolia, the white magnolia, the Yunshan Prynne, the Lechang smiling face, the multi-flowered smiling face, the deep mountain smiling face, the Magnolia grandiflora and so on. In addition, there are Aesculus, Lagerstroemia indica, Lilac, Begonia, Bauhinia, Prunus mume, Taxus chinensis, Chimonanthus glabra and so on. The seeds of Magnoliaceae, Taxus chinensis, Aesculus chinensis, Begonia, etc., after being treated, must be stored in wet sand in the early spring of next year, and then planted in the fields after the seeds are cracked. Harvesting seeds of grass flowers include marigold, zinnia, impatiens balsamina, mirabilis jalapa, Celosia cristata, Catharanthus roseus, Asteraceae, Cuiju, etc. After harvesting, thresh them in time and store them dry until next spring before sowing.