Pruning methods of longevity plum
Longevity plum is a famous bonsai plant, which belongs to the genus papaya of Rosaceae, so what is the pruning method of longevity plum?
1. Growth habits of longevity plum
The Chinese name of longevity plum is Japanese papaya, which is originally from Japan. Gardens are commonly cultivated in Shaanxi, Jiangsu and Zhejiang, China.
Longevity plum likes plenty of sunshine, is also resistant to semi-shade, and slightly resistant to cold. Poor growth in saline-alkali soil and clayey soil. I like to be wet, but I'm afraid of waterlogging and rotting the roots. [4] strong adaptability, able to withstand low temperature-32 ℃, high temperature 42 ℃.
There are not many cultivation methods of longevity plum, generally using sowing propagation and cutting propagation, among which, when cutting propagation, generally when the new root of the cuttings is about 2-3 cm long, it is generally planted in a small pot, and then planted in a 18-20 cm diameter pot after the flower seedling branches.
2. Pruning methods of longevity plum
Cut off the branches that grow too high at the top, so that the bottom can grow more vigorously, and it can also be trimmed according to the shape of the longevity plum, so that the longevity plum can maintain its original shape. Do not over-prune longevity plums in winter, cut off withered leaves and branches, and put them indoors for natural breeding.
III. Disease and pest control of longevity plum
The common disease is stem rot, which is mainly caused by excessive wetness of basin soil. when it occurs, diseased leaves and old leaves should be removed in time and watering should be controlled to ensure that the basin soil is not too wet.
Common pests include aphids, red spiders and leaf rollers, among which:
Aphids can be controlled by spraying with 1500 times dilution of 50% aphid pine emulsion, 2000 times dilution of 50% phoxim EC or 1500 times dilution of 20% methomyl EC.
Red spider can spray 1000-5000 times dilution of 40% dimethoate emulsion, 1500 times dilution of 50% monocrotophos EC or 1500 times dilution of 40% isocarbophos EC.
Leaf roll moth can be sprayed with 40% omethoate 1000 times dilution.
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