MySheen

Main Diseases of Orchid and its Control measures

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Orchid anthracnose is an important disease of orchids. At the initial stage of the disease, the leaves produced round, dark brown disease spots, and then gradually expanded with dark brown edges, gray-white center, and disease spots easily broken. When it occurs seriously, the disease spots are numerous and the leaves are withered and yellow. Prevention and control measures: ① cut off diseased leaves, remove diseased bodies, and concentrate on burning.

① Cut off the diseased leaves, remove the diseased bodies, and burn them intensively;④ The diseased plants can be sprayed with 50% benlaite or 70% thiophanate or 50% carbendazim 600 - 800 times solution once every 10 days or so, and the control effect is quite good.

1 Remove diseased leaves. Control measures: ③ to pot soil weight of 0.2% quintochloronitrobenzene disinfection, fully mixed evenly before planting; control measures: five, orchid necrotic spot disease is a virus disease. The virus is transmitted through sap, peach aphid, etc. Green spots and necrotic spots are produced on cymbidium; local necrotic spots are produced on Catalan; tree cymbidium produces mosaic;② reasonable fertilization promotes plant health and can alleviate disease; control countermeasures: 7. Sclerotinia sclerotiorum first decays in light brown water stains at the base of leaves, and then extends to the whole leaves, showing reddish brown, causing cymbidium leaves to die into tubes. Control can pull out the diseased plants, refer to the control of white silk disease.

 
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