Picking leaves can be done in summer and autumn. If it's too troublesome, you can spray 1500 times dimethoate solution to make it defoliate, then prune the elm and do a good job of fertilization. Of course, watering is also essential. It will take about a week for the elm to germinate again, and its leaves are unparalleled in beauty.
Do a good job of watering. Generally, when watering, as long as the basin soil is dry, it needs to be watered thoroughly. If the weather is dry and the temperature is high, then everyone needs to water more, but there can be no water accumulation. The time is suggested in the morning or evening. In winter, water should be reduced or not watered. In addition, in order to avoid overgrowth of branches or enlargement of leaves, people should not spray water on elm leaves.
Do a good job of cleaning regularly. Although it is not recommended to spray water on the leaves, a lot of dust will accumulate on the leaves when the elm is left in a certain place for a long time, so everyone needs to spray water on the leaves regularly to clean them. If there are long branches, everyone needs to cut them off in time to ensure the beauty of the elm. If the sun is too strong, people need to shade the elm bonsai.
In pest control, common elm bonsai will be invaded by red spider, oyster scale and cotton scale. Red spider harms the leaves, and the harmed leaves are eaten into a net shape, and the leaves are gray, so the leaves can't carry out photosynthesis and the branches can't germinate and grow. Squid and cotton-blowing scale harm branches. Therefore, in order to avoid these pests, people need to spray 50% dichlorvos 1000 times solution regularly (every two months).
How to maintain the elm bonsai-The above are some maintenance methods of the elm bonsai, hoping to help everyone. In addition, the shaped elm piles are fertilized 2-3 times a year, and the elm bonsai is turned over every 2-3 years.