Impatiens stem rot
Impatiens stem rot is also known as impatiens white silk disease.
[pathogen] SclerotiumrolfsiiSacc. Belongs to Sclerotinia sclerotiorum.
[symptoms] Brown water-stained disease spots appeared at the base of the stem of the damaged plants, followed by white sericeous mycelium. In the later stage, the sclerotia with grain size of rape could be seen at the rot of the basal cortex of the stem.
[incidence regularity] the pathogen overwintered in the remains of diseased plants or soil, and could be transmitted by diseased soil, diseased seedlings or water flow.
[epidemic characteristics] the rainy season with high temperature or high humidity in summer and overdense clumps of plants are beneficial to the disease.
[control measures] see orchid white silk disease.
- Prev
The value and use of impatiens
At the height of summer when cicadas are fluttering, lotus flowers are blooming and jasmine is fragrant, impatiens also bloom at the right time. Impatiens such as crane top, like colorful Phoenix, graceful posture, charming. Both the fragrant red impatiens and the delicate blue impatiens bloom in the morning, when cold butterflies and hungry bees are having sweet dreams, which is the best time to enjoy the impatiens. Impatiens is a common material for beautifying flower beds and flower borders because of its rich colors and varieties. It can be planted in clusters, planted in groups and potted, and can also be raised in water for cut flowers. The whole plant of impatiens can be used as medicine, especially the pure white impatiens has higher medicinal value.
- Next
Occurrence of blight of impatiens
Balsamine blight is common in China, and it is a common disease in impatiens cultivation. The disease mainly infects the root and stem. After the symptom rhizome was damaged, there was black constriction, and there was white mildew in the disease part when the environment was humid. The pathogen spread rapidly and occurred seriously, which led to the wilting and drying up of the upper leaves within a few days, and the whole plant died in serious cases. The pathogen RhizoctoniasolaniKuhn is called Rhizoctonia solanacearum, which belongs to the subphylum of semiknowns. The strain does not produce spores, and the hyphae grow for a certain time to interweave to form sclerotia.
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