1. Anthrax: it often suffers from this disease, which mainly occurs in the high temperature season. The affected part is the leaves. There are round or oval gray spots on both sides of the vein. In the serious period, the spots will be connected together, even spread to the whole leaves.
2. Grey mould: This is one of the common diseases in greenhouse. Before the new leaves are spread, they will be infected and die. The old leaves will also rot and fall. The leaves will start to rot and grow grey yellow mould layer. There are many reasons for this disease, which may be due to large temperature difference, improper water supply, etc.
3. Leaf spot disease: it is mainly a symptom of leaves. At the beginning of the disease, there will be small spots on the leaves. Later, they will gradually expand together, which will eventually lead to yellowing and falling down. It has a serious impact on the ornamental and also causes problems in the growth condition.
In this respect, the main infection is the infection of thrips and scale insects, which will affect the plants to varying degrees.
1. Diseases: these diseases are mainly based on prevention. It is necessary to strengthen ventilation management and timely open windows for ventilation. They cannot be in a sultry environment for a long time. If you get sick, cut off the diseased part first, and then spray the agent.
2. Insect damage: after the occurrence of insect damage, remove it manually, and then spray some Omethoate.
