Common diseases of jasmine

Leaf spot

symptom

In the early stage, the leaves have many brown spots, which gradually expand, the leaf edges dry up, and the leaves turn yellow. In severe cases, the plant dries up from the bottom up.

Prevention and treatment methods

After the disease occurs, spray with 500 times copper succinate wettable powder or 4000 times streptomycin wettable powder.

Spot disease

symptom

Brown spots appear on the leaves, 3 to 4 mm in diameter. In severe cases, the leaves of the plant will die or even fall off.

Prevention and treatment methods

In the early stage of the disease, spray 1000 times diluted thiophanate-methyl and 1000 times diluted thiophanate-methyl wettable powder for sterilization and disinfection.

Mosaic

symptom

When infected, the leaves become smaller, deformed, have dark green spots, and turn yellow.

Prevention and treatment methods

Remove weeds in a timely manner, reduce sources of infection, and ensure that the environment around the forsythia is clean. Secondly, prevent and control aphids and reduce the transmission medium.

Brown spot

symptom

The plant's leaves will develop brown spots.

Prevention and treatment methods

Once discovered, immediately spray thiophanate-methyl wettable powder for sterilization.

Botrytis cinerea

symptom

The symptoms are similar to those of mosaic disease. After the plant is infected, the whole plant turns yellow and dies.

Prevention and treatment methods

Remove diseased leaves and plants promptly to reduce the source of infection.

When the disease occurs, spray the wettable powder of prochlorperazine or chlorpyrifos, spray 2 to 3 times.

Analyzing the above diseases, you will find that the diseases of Forsythia mainly occur on the leaves. Paying more attention to maintenance will reduce the chance of the plant becoming sick.