Common diseases and pests of Chunmengdian Brocade and their control methods

Common diseases of Chunmengdianjin: Anthracnose

Anthracnose is an important disease that harms succulents and is a fungal disease. It often occurs in hot and humid seasons, especially the hot and humid rainy season, and can also be caused by excessive application of nitrogen fertilizer.

In the early stage of the disease, small brown spots appear on the leaves, which then expand into round or oval shapes. The spots gradually dry up, and in severe cases the entire plant is infected.
Prevention and control methods: First, open the windows for ventilation to reduce indoor air temperature and humidity. Then spray with 1000 times diluted 70% methyl thiophanate wettable powder, or spray 70% methyl thiophanate 60% anthrax, fumei, multi-bacterium, etc. to prevent the disease from spreading further.

Common pests of Chunmengdianjin: whiteflies

Whiteflies mainly attach to the back of leaves and suck sap, causing the leaves to turn yellow and fall off. At the same time, they induce sooty mold, and large patches of ugly black powder will appear on the stems and leaves, directly affecting the ornamental value of the plant.
Prevention and control methods: In addition to improving environmental ventilation, in the early stage of the occurrence, you can spray with 1000-2000 times diluted 40% oxydemeton-methyl emulsifiable concentrate, or 500 times diluted malathion or 1000 times diluted malathion mixed with dichlorvos. After spraying for 2 days, use a strong water stream to wash away the dead insects together with the black powder.