Botrytis cinerea is an important disease in strawberry in greenhouses. If the flowers and fruits are infected, they will quickly rot and spread quickly, which will have a great impact on the yield. In severe cases, the yield may be reduced by more than 40%. Control methods Agricultural control: the plant is densely planted to ensure proper planting and row spacing; the shed requires good ventilation, attention to drainage after the rain, timely ventilation and light transmission, reducing the humidity in the shed; often removing rotten fruit, sick old leaves, and deeply burying or burning them. , to reduce the re-infection of pathogens. Chemical control: Smoke method can be selected as follows: 10% fast-king spirit tobacco agent 250 grams per mu, or 45% chlorothalonil smoke agent 200 grams, issued in the evening branch, immediately closed after smoking 1 night, the next day Open the door for ventilation. It is best to use the smoke method for overcast and rainy weather; spray method can be used for 50% Skoda WP 800 times, or 2.5% for SC 1500 times, or 50% acetaminophen WP 1000 times. In the initial stage of onset of spraying, medication is administered once every 7 days or so, and continuous administration is performed 2 or 3 times. Continuous cropping of strawberries should be based on prevention and should be applied before flowering. Http:// fresh frozen sand shrimp Sand Shrimp,Frozen Sand Shrimp,Fresh Sand Shrimp,Fresh Frozen Sand Shrimp Zhoushan Junwei Aquatic Products Co., Ltd. , https://www.junweiaquatic-intl.com