MySheen

Control of various diseases and insect pests of Schisandra chinensis

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, (1) powdery mildew and black spot are two common diseases of Schisandra chinensis, which usually occur in the first ten days of June. Prevention and treatment methods: the initial period of the two diseases is similar, spray once in late May, 1 hundred times Bordeaux liquid to prevent, if there is no disease, spray once every 10 days. For the prevention and control of powdery mildew, 0.3 li 0.5 degree stone sulfur mixture or powder, methyl topiramate wettable powder 800 times solution; black spot 50% mancozeb 50% wettable powder 600 rain 800 times solution. If both diseases are present

(1) Powdery mildew and black spot are two common diseases of Schizandra chinensis, which usually occur in early June. Control methods: The initial period of the two diseases is similar, spraying 1 time in late May, 1:1:100 times the same amount of Bordeaux mixture for prevention, if there is no disease occurrence, can spray 1 time in 7 - 10 days. For powdery mildew control, 0.3 - 0.5% sulfur mixture or powder rust, thiophanate-methyl WP 800 times solution; black spot control with mancozeb 50% WP 600 - 800 times solution. If both diseases are developing, triadimefon and mancozeb can be mixed for primary control, and the concentrations mentioned above can still be used.

(2) Root rot occurs from early May to early August and damages roots. Control methods:

① Select land with high dry terrain and good drainage for planting;

(2) 50% carbendazim 500-1000 times solution was used to irrigate rhizosphere during disease onset period.

(3) Leaf blight occurs from late May to early July and damages leaves. Control method: At the early stage of disease, 50% topozine 1000 times solution and 3% Jinggangmycin 50 ml/liter (PPm) solution were sprayed alternately. The number of sprays depends on the condition.

In management, attention should be paid to the rational distribution of branches and vines, and the proportion of phosphorus and potassium fertilizer should be appropriately increased to improve the disease resistance of plants; before germination, the diseased branches and leaves should be cleaned up and burned or buried deeply, and the whole garden should be sprayed with 5-degree sulfur mixture once. In order to prevent blight and other soil infectious diseases, after sowing and covering soil, combined with watering, spraying 800-1000 times of 50% of ammonium bromide.

 
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