1. Grey mould: the disease is caused by fungi, and may occur in leaves and stems. The disease of leaves starts from the tip of the leaves, and there are lines of yellow brown, dark and light on them. If the surrounding humidity is high, there will be grey mould on the surface. The stem will also be infected. At first, irregular water spots will grow, and then it will soon become soft and rotten. In the early stage of the disease, we can spray gram Bacillus subtilis .
2. Root rot: water will accumulate in the soil with too much water, which will induce this disease. The disease causes the roots to show signs of rotting, eventually killing the whole plant. Before sowing, it can be soaked with metalaxyl and it can also be used for root filling after the disease. At ordinary times, it is necessary to pay attention to the maintenance methods, control the watering and prevent water accumulation.
It usually grows stronger and rarely infects insects. However, it may also suffer from aphids. It will gather on the surface of the leaves and suck the juice inside, leading to the lack of water and drying up of the leaves, which may eventually fall off. Usually pay more attention to ventilation, reduce the possibility of infection. After the discovery, in addition to artificial capture, spraying insecticides, such as Omethoate, dichlorvos and other chemicals, is also needed.