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.
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