The occurrence of this disease, mainly on the leaves, the onset time is about March to May. Dark spots will appear on the surface of the leaves when they are sick. These spots will gradually expand over time. If they are not treated in time, the whole leaves will be covered by these spots until they fall.
Control method: in case of disease, it can be sprayed with medicine to prevent its expansion. In the vicinity of disease, you can use drugs to prevent
The disease is mainly manifested in leaves and stems. In case of disease, black spots will appear on the surface of leaves, and the onset time is from January to May.
Control method: spray with medicine.
When the disease happens, the leaves of the whole plant will be covered with a layer of similar soot, so that the sun can't directly contact with the leaves, so that the plants can't carry out photosynthesis, which also causes the plants can't grow normally. The main time of onset is from March to May.
Control method: spray with medicine.
This pest lives by sucking the juice of plants. If it is not prevented and controlled in time, the whole plant will die due to the loss of water, and sometimes other diseases will be caused. The time of occurrence of this pest is from May
Prevention and control method: if found earlier, you can cut off all the branches and leaves eroded by insects, and spray them with medicine when they are serious
It should be common for disease causing friends. It is found in many vegetables. It mainly eats plants to survive, and has no fixed time of occurrence. The most important thing is that it is more harmful.
Prevention and control method: baiting can be used for killing, while spraying with drugs. In daily maintenance, be sure to keep the plants clean and tidy.