Botrytis cinerea on strawberries is prone to occur on low temperature, high humidity, and rainy days. Remove the diseased leaves, flowers, and fruits, collect them, and destroy them. Prevention is the main thing. After the occurrence, promptly use procymidone, iprodione, jianchao, fludioxonil, etc. plus silicone alternately, evenly and thoroughly to prevent the occurrence of resistance. Use 2-3 times in a row, once every 7 days. Control of wild slugs. Spread metaldehyde granules in the evening or isolate them with quicklime or salt. You can also spray and control them with metaldehyde wettable powder.