Greenhouse strawberry should be alert to bud damage
The efficiency of growing strawberries in greenhouses is good, and the area has also increased year by year. Humidity in large greenhouses tends to induce the occurrence and damage of germination blight, which can harm all parts of the strawberry, but the main damage is buds, young buds and young leaves, and the general greenhouse strawberry occurs. In addition to harming strawberries, bud blight can also harm many crops such as vegetables and soybeans.
The prevention and treatment of bud blight should be based on prevention. Comprehensive prevention and control measures should be taken in view of the occurrence of hazards. Generally, good control effects can be achieved.
Try to avoid the cultivation of strawberries in open areas or greenhouses in areas where bud blight has already occurred. In places where continuous cropping is practiced for a long period of time, we must seize the heat in summer and use solar energy to disinfect and sterilize greenhouse soil.
Cultivate disease-free seedlings. The establishment of disease-free seedling breeding bases and cultivation of disease-free seedlings can reduce the occurrence of diseases, and the diseased plants cannot be used as mother plants to propagate strawberry seedlings. Density should be reasonable when planting, appropriate sparse cultivation, early buds covered with black plastic film before the line, to inhibit the germination of mycelium, reduce the effective bacteria source favorable. And pay attention to field health, timely removal of old leaves and diseased leaves, found that the diseased plants removed in a timely manner, bring out and burned.
Master the regulation of good humidity. Reasonable irrigation, ensure ventilation, reduce the indoor environment humidity, prevent the humidity is difficult to control and induce germination blight.
Chemical control. Prevention of bud blight can be combined with the prevention and treatment of other diseases, in the early stages of disease can be used 10% polymycin 600 ~ 800 times the liquid, or 10% of the Leghorn 300 times, or 60 grams of enemy Dan Dan root irrigation or spray. Can also be used 24% Jinggangmycin A1000 times plus 100 grams of CFU spores per gram of Bacillus subtilis WP 1000 times, the effect is better. In addition, the use of the following fungicides to control bud blight in strawberries is also effective. A 25% Thioferamide suspension was sprayed or rooted 1500-2000 times, or 30% of afloxacin 1500 times. 7 times a day, a total of 2 or 3 times, the serious illness field appropriate increase in the amount of medication. The incidence of strawberries in sheds can be 5% of chlorothalonil dust agent per acre of 150 to 180 grams, 5 to 6 points, evening ignited closed greenhouse overnight, even smoked 2 to 3 times, interval 7 days.
White tea, belongs to the micro-fermented tea, old white tea is often prepared as medicine to practical, its medicinal properties are very good. It has the effect of moistening the lungs and protecting the liver. The production of white tea is special, after picking the fresh leaves, it is not killed, but only dried and processed by sun-drying. The buds and hairs of the finished tea are relatively intact, with white hairs showing and the fragrance of hairs overflowing; the soup color is clear, generally yellow-green, and the taste is light with a strong sweetness. The main production areas of white tea are in Fuding, Fujian, Zhenghe and Jinggu, Yunnan, and the more famous white teas are: white hairs silver needle, white peony, Shoumei, Fuding white tea and so on.
White tea is simpler than black tea and green tea in terms of production method. After being picked, it is directly dried or dried in the sun without any frying or twisting action. Because of the simplicity of the production process, white tea retains the nutrients in the tea leaves to a great extent. People who often drink white tea in the summer rarely get heatstroke. Experts believe that this is because white tea contains a variety of amino acids, which have the effect of reducing heat, dispelling heat and detoxifying.
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