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How to control metasequoia red blight?

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Prevention and control methods of red blight of Metasequoia glyptostroboides: first, plant quarantine should be strictly carried out, diseased seedlings should be prohibited from being introduced into new areas, and diseased seedlings should be cleared and burned immediately. Second, the water for planting seedlings should be too dense. It is required to be ventilated and transparent, reduce the humidity in the air, increase the application of phosphorus and potassium fertilizer, and apply less nitrogen fertilizer to promote the healthy growth of seedlings and improve the ability of disease resistance. 3. During April to May and September to October, Bordeaux solution or 50% carbendazim wettable powder or 50% carbendazim wettable powder can be sprayed in a ratio of 1: 1 to 200 times or 50% to 1000 times.

Control methods of red blight of Metasequoia glyptostroboides

First, strictly carry out plant quarantine, prohibit the introduction of diseased seedlings into new areas, and immediately remove and burn diseased seedlings when found.

Second, the water for planting seedlings should be too dense. It is required to be ventilated and transparent, reduce the humidity in the air, increase the application of phosphorus and potassium fertilizer, and apply less nitrogen fertilizer to promote the healthy growth of seedlings and improve the ability of disease resistance.

3. During the onset period from April to May and September to October, Bordeaux solution 1: 1: 200, or 50% carbendazim wettable powder 500 to 1000 times, 25% carbendazim wettable powder 500 times, or antimicrobial agent 401 800 times, once every 10 to 15 days, 2 to 3 times in a row.

 
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