Gray spot of licorice
In order to damage the leaves, it forms a nearly round brown and gray disease spot in the middle.
Prevention and cure method: ① cleans the garden in winter and treats the remains. During the onset of ②, the patients were sprayed with 120-fold Bordeaux solution or 1500-2000 fold solution of 70% methyl topiramate wettable powder.
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Skillfully prevent leaf blight of Schisandra chinensis
Schisandra chinensis leaf blight mostly occurs from late May to mid-July, and the disease spot is withered yellow. In the early stage, it began to occur from the tip of the leaf, gradually expanded and spread, and when it was serious, the whole leaf withered and died. The disease is serious when there is high temperature and humidity and poor ventilation. Prevention and treatment methods: 400 times 500 times of Dysen zinc and 1500 times of topazine spray can be used, preferably once a week before the onset of the disease, even 2 times 3 times, or Bordeaux solution can be used once a day.
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Pest control: diseases and insect pests of Flos Lonicerae and their control
Anthracnose often occurs in summer, which can be perfused with 500-1000-fold dilution of diexamethasone powder. Rust, spray with 200 / 250 times of diazepam sodium (50kg / 100g washing powder can be added to 50kg liquid as stain). Insect pests include aphids, longicorn beetles, etc., aphids can be sprayed with 4000 times of imidacloprid, and longicorn beetles can be sprayed and killed. However, it should be noted that the use of toxic pesticides is strictly prohibited in the budding stage of Flos Lonicerae.
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