Evening Primrose Scientific name Oenothera erythrosepala Borb. English name Evening Primrose (evening primrose) Classification Willowherb family, genus Evening Primrose. Origin and Sources Native to temperate America, China has introduced. Another species to be nightshade (O. odorata) is native to Chile and Argentina in South America, and has become wild in Heilongjiang, Jilin, Liaoning, and other provinces in China. Traits biennial. Herbs biennial, up to 1.2 m tall, erect, much branched. Flowers solitary in leaf axils, yellowish, 5 cm in diam. Capsule terete, seeds tiny. Flowering from June to August, fruiting from August to September. Strong adaptability, not strict on soil requirements, barren, drought-resistant, cold-resistant. Uses Evening primrose oil is the most important nutritional drug discovered in this century. Seeds contain 20-30% oil, 70% of the oil is linoleic acid, 8-9% of the essential γ-linolenic acid. Evening primrose oil can treat a variety of diseases, regulating the blood lipid-like substances, high cholesterol, high blood fat caused by coronary artery infarction, atherosclerosis and cerebral thrombosis and other diseases have significant efficacy, but also for the treatment of a variety of sclerosis, diabetes mellitus, obesity, rheumatoid arthritis and psychiatric **** disease, etc., in the laboratory it was also found that it has the role of inhibiting the growth of cancer cells. Clinical use of evening primrose oil can prevent cardiovascular obstruction, lower cholesterol this characteristic, the production of special drugs for the prevention and treatment of cardiovascular disease. Evening primrose is also a good material for flower beds. The flowers of the fragrant evening primrose can be extracted from the flavor extract. Evening primrose oil contains a large number of essential fatty acids - γ - linoleic acid (GLA), its activity is more than ten times higher than linoleic acid, and the earliest use of evening primrose to treat the disease is multiple sclerosis, atopic dermatitis, rheumatoid arthritis. Evening primrose is native to the Americas, the Indians hundreds of years ago has discovered the medical value of evening primrose, the whole evening primrose soaked in warm water, made of a lake-shaped poultice for the treatment of bruises and will also be used on the surface of the skin to treat skin trauma and dermatitis. It was only in the 18th century that cotton ships carried the seeds to England, and it was at this time that Europe began to develop the effects of evening primrose, and many scientists and physicians have invested in the research of evening primrose and used in the treatment of multiple sclerosis, atopic dermatitis, and rheumatoid arthritis. Evening primrose spotted wilt disease Symptoms Mainly affects the leaves. Leaf spots are round, light brown, 2-3 mm in diameter, with purple-red edges and brown centers, densely populated with small black dots, which are the conidia of the pathogen. The onset of severe leaf death. Pathogenic bacteria and the law of occurrence of the pathogen for evening primrose shell needle spores (Septoria oenotherae Westd.), belonging to the hemiptera subphylum, shell needle spores of fungi. Pathogen to conidia and mycelium in the disease residue in the body overwintering, the following spring conidia suction after the release of conidia for the first invasion. Disease field spread mainly by raindrop splash and airflow, seed with bacteria caused by long-distance transmission. High temperature and humidity, rainy and cloudy are favorable to the onset of the disease. Cultivation management is poor, plant growth is weak and easy to develop. July to August high temperature and rainy season for the onset of the peak period. Prevention and control methods ① fall thoroughly remove the field of residual leaves, concentrated burned or buried, in order to reduce the amount of overwintering fungal sources in the field. ② Before sowing, use 50% carbendazim or 50% diclofenac 500 times solution to soak the seeds for 30 minutes, dry and then plant. ③ early onset of the disease with 50% diclofenac manganese zinc 500 times liquid or 50% wanmuiling 600 times liquid and other agents such as spraying 1 time, an interval of 10 ~ 15 days. [Editor's note] Evening Primrose's Two Miraculous Ingredients Evening Primrose contains a large amount of essential fatty acids as well as GLA: Gamma-Linoleic Acid, and in order to know why Evening Primrose has such an important medical and healthcare value, it is important to recognize the effects of these two ingredients on the human body. The so-called "essential fatty acids" are substances that are very important to the human body but cannot be synthesized on their own and must be ingested from the outside. Provide energy ． Provide energy ． Maintain body temperature ． Protecting tissues and organs Most importantly, it is an indispensable substance for the composition of cells and tissues in the body, and it is also a material for the synthesis of important prostaglandins and hormones in the human body, so it can be imagined that if there is a lack of "Essential Fatty Acids", the human body will face: ． Hair loss and wound healing. D D Reproductive function is seriously affected. ． Lower immune function, the body's chance of being infected by viruses and bacteria greatly increased. Generally, people naturally consume "essential fatty acids" from foods such as milk, vegetables, seed oils, etc. However, in recent years, due to the dietary sources and eating habits of modern people, they excessively consume the three highs: "high cholesterol, high fat, and high sugar", which are not only not nutritious, but also impede the body's absorption of the normal "essential fatty acids", which is the case of the so-called "over-nutrition" equals to "malnutrition". This is an example of "over-nutrition" equals "malnutrition". Evening primrose is composed of 70% linoleic acid and 9% gamma-linoleic acid, which are the two main categories of "essential fatty acids", which explains why evening primrose is so important to the human body. Prostaglandins Evening primrose composition, another listed in the medical community focus on the research component is prostaglandins (prostagland). 1930 a Swiss scientist found this substance in semen, and named "prostaglandins", and later found that prostaglandins in the human body in general, and there are a variety of different combinations, and play a different synergistic effect within the human body.