1、 Factors of leaf blackening

This kind of plant likes a certain amount of water, but the water can't be too large, otherwise its roots will rot and destroy its normal growth. Moreover, sometimes it will cause leaf lesions due to the invasion of pests, or the temperature is too low. In midsummer, it should also avoid strong light

2、 Solution

1. The water supply should be appropriate. It can be watered after the soil is dry. If it is not dry, it should not be watered. Moreover, water supply should be reduced in the continuous rainy season. When the weather is relatively dry, it needs to provide more water demand

2. This plant is prone to aphids, scale insects and other hazards. We can spray some chemicals appropriately to achieve the purpose of killing insects. If you don't want to treat with drugs, you can also mash the garlic head and add 1000 ml of water for stirring, and then spray it. For example, the appearance of scale insects can be directly brushed off manually with an old toothbrush, which can also achieve the purpose of removing pests

3. The temperature is relatively low in winter. If it is maintained in the north, it needs to be cultured indoors, so that it can pass the cold winter smoothly. In the maintenance in the south, it needs to be placed in a place away from the wind, cover the plant with plastic bags and take thermal measures for it