What are the diseases and insect pests of sweet-scented osmanthus trees?
What are the diseases and insect pests of sweet-scented osmanthus trees? Please guide the control methods 1. Sweet-scented osmanthus leaf blight, also known as mildew gray blight, mainly infects sweet-scented osmanthus leaves. Sweet-scented osmanthus leaf blight is a high-temperature and high-humidity disease caused by leaf spot mold fungi. Control methods: ① should strengthen cultivation management, avoid partial application of nitrogen fertilizer, and reasonable combination of nitrogen, phosphorus and potassium. Watering should be dry and wet to avoid stagnant water in basin soil and garden soil. Maintain good ventilation and improve plant disease resistance. ② often occurs in the garden to achieve disease-free early prevention. After clearing the garden, ③ sprayed 65% sterilized milk powder 600 times, 75% chlorothalonil wettable powder 500 times 800 times, once every 7 days, and had a good control effect. Spray prevention in the next spring new leaf extraction period: 30% copper oxide suspension + 50% fipronil suspension (2 ∶ 1) 1200 times. Click to get more sweet-scented osmanthus planting techniques
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What diseases should be prevented when planting sweet-scented osmanthus trees in Guangxi?
What diseases should be prevented when planting sweet-scented osmanthus trees in Guangxi? Is there any way to control sweet-scented osmanthus is a set of greening, beautification, fragrance in one, ornamental and practical both excellent garden tree species, but also a traditional Chinese evergreen aromatic plant, widely planted in many areas. But in recent years, sweet-scented osmanthus diseases and insect pests increased.
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How do sweet-scented osmanthus trees suffer from leaf blight?
What are the propagation methods of sweet-scented osmanthus trees? Please guide and thank sweet-scented osmanthus trees for the following breeding methods: 1. Grafting and reproduction. The rootstocks of sweet-scented osmanthus trees are generally privet or water wax, and most of them use ventral grafting or leaning grafting method. in recent years, some people have tried the tearing method. The tearing method is easy to operate, and the survival rate is about 93%. The specific method is: in the spring bud.
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