Powdery mildew of licorice and its control
The pathogen is a kind of half-known fungus in fungi, whose scientific name is Erisiphepolygoni, which harms leaves and produces powdery mildew on both sides of diseased leaves.
The prevention and treatment methods were sprayed with 0.2-0.3 Baumedu stone-sulfur mixture.
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It is easy to sow licorice in 5 steps.
Licorice sowing is a relatively simple grass species category, but its key points should also be paid attention to during cultivation. The main points are as follows: first, the sowing method has wide adaptability to land preparation and licorice, and is not strict to the cultivation environment. Licorice can be cultivated in semi-arid and arid areas with an average temperature of 4 ℃ ~ 12 ℃ and sunshine hours of more than 2600 hours, and licorice can be planted in barren farmland. However, it should also be noted that areas with waterlogged depression and high groundwater table, heavy and acidic soil are not suitable for planting licorice.
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Licorice powdery mildew
It is mainly harmful to leaves, but also to pods. The damaged leaves and pods were covered with a layer of white powder, and many small black spots appeared on the disease spots in the later stage, which could cause early fallen leaves or whole plant wilt. Prevention and control methods: spray Baume 0.1-0.3 degree stone sulfur mixture, 50% topazine wettable powder 800 times solution, 50% Dysenamine 600 times solution.
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