MySheen

What are the diseases and insect pests of sweet-scented osmanthus trees?

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, How to plant Osmanthus fragrans? Please guide the planting of sweet-scented osmanthus flowers as small evergreen trees, such as golden cinnamon (orange flowers), silver cinnamon (yellow and white flowers), cinnamon (orange-red flowers), four seasons osmanthus (yellowish white flowers) and so on. Osmanthus fragrans is not only an important greening tree species, but also a famous spice plant, which has high edible value. First, complexity.

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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