What diseases and insect pests do Flukao have and how to control them?

Brown spot: it mainly damages leaves, pedicels and stems. Before planting plants, the planter and soil should be disinfected thoroughly. At the early stage of the disease, it should be treated by spraying carbendazim 1000 fold solution immediately. Virus disease: this disease will make the leaves of the plant dry, resulting in the plant can not bloom normally. The diseased plants should be pulled out and destroyed in time to prevent infection of other plants. Leukoplakia: the disease is the most harmful to the plant. It needs to be treated by spraying chlorothalonil or Bordeaux solution in time.

I. brown spot

1. Symptoms: the disease mainly damages the leaves, pedicels and stems of phlox. In the early stage of the disease, there will be some round spots on the diseased leaves, which gradually expand and fuse together, causing the leaves to wither. The stem of the plant will also show long streak. If the disease occurs during flowering, it will cause the flower to turn yellow and wither, and even the black mould layer will appear.

2. Prevention and control method: before planting the plant, the plant flowerpot and soil shall be thoroughly disinfected, and the root shall be irrigated with thiophanate methyl solution every half month to prevent the occurrence of brown spot. At the early stage of the disease, we should spray carbendazim 1000 times solution immediately, which can control the disease twice in a row.

Phlox

2. Viral diseases

1. Symptoms: the disease is mainly transmitted by aphids. When the disease occurs, the edge of the leaves will turn red, lose luster, and even dry slowly. The plants could not bloom normally, and the flowers became green or even deformed.

2. Control methods: in the process of plant maintenance, insect control measures shall be taken and insecticides shall be sprayed on time. If the above symptoms are found, the diseased plant shall be pulled out and destroyed in time. The soil where the plants grow should be disinfected regularly to avoid infecting other plants.

Phlox

III. leukoplakia

1. Symptoms: the disease is caused by fungi, which is a common and harmful disease of plants. The symptoms of the disease began from the leaves at the lower part of the plant, and red round spots appeared on the leaves, with a diameter of 2-4 mm. In the later stage, the spots became dark brown and the middle of the spots was light gray. During the growing season, the plant may be infected many times.

2. Control methods: in autumn, the plants should be pruned in time, the diseased leaves and the diseased plants should be pulled out, and the growth of the weak plants can be properly fertilized to increase their disease resistance. After the onset of the disease, it is necessary to spray chlorothalonil or Bordeaux solution in time for treatment.

Fu Lu Ke