Leaf spot of Dianthus chinensis
Identification points: Phyllostachys pubescens leaf spot mainly harms leaves. At first, the disease spot of the leaf was yellow spot, and gradually became black-brown round to oval spot. In the later stage, the disease spot was grayish brown, the edge was dark brown, and when the disease spot was serious, the disease spot connected with each other, resulting in withered yellow and early fall of the leaf. Under moist conditions, there are many small black particles under the disease spot, that is, conidia and conidiophores of pathogens.
Occurrence characteristics: fungal diseases. It can occur all the year round in the greenhouse. Rain Water is easy to get sick under the conditions of many, foggy and heavy dew. Poor ventilation and light transmission, extensive management and weak plant growth can aggravate the occurrence of diseases.
Prevention and treatment methods: (1) timely removal of diseased leaves and burning to reduce the source of infection. (2) at the initial stage of the disease, 50% carbendazim wettable powder can be sprayed with 1000 times of 50% carbendazim wettable powder, 1000 times of 25% bromofenapril wettable powder and 2000 times of 20% propiconazole EC.
- Prev
Root rot of carnation
Identification points: Carnation root rot mainly harms the root system. The growth of the plant was weak after infection, there were few whisker roots on the diseased plant, and the leaves wilted. In severe cases, the roots all turn brown, rot, the root bark is easy to peel off, and the plants wither. Occurrence characteristics: the pathogen belongs to Pythium. The pathogen lives on plant residues in soil and is an important soil-borne fungus, which can harm a variety of plants and cause Pythium root rot. The disease is serious when the soil or matrix is slightly alkaline and the humidity is high. It is easy to put under the conditions of too dense, too much watering, poor ventilation and so on.
- Next
The Medicinal value of Carnation Flower
The plant type of carnation is low, the stem is like bamboo, the leaves are green, the natural flowering period is from May to September, from late spring to mid-autumn, greenhouse potted plants can bloom for four seasons. Flower terminal branch tip, solitary or in pairs, there are also panicle-shaped Cymes, flower diameter is not large, only 2 to 3 cm, but flowers luxuriant, one after another, ornamental period is longer. The colors are white, pink, red, pink, bright red, purple, lilac, yellow, blue and so on. Gardens can be used in flower beds, flower borders, flower beds or potted plants, as well as rock gardens and lawn edges
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi