The invention belongs to the technical field of agricultural
biology, and particularly discloses application of
honokiol in preparation of a bactericide for preventing and treating fungal diseases of plants, and
honokiol is derived from plants, is a green, environment-friendly and high-safety
small molecule compound, is wide in antibacterial spectrum and long in lasting period, and can be applied to prevention and treatment of fungal diseases of plants. The bactericidal composition can be used for effectively preventing and treating
plant diseases of peanuts, corns, wheat, Chinese chives, soybeans, peppers, tomatoes and the like, can be applied to industrial crops such as various grains, melons and fruits, vegetables and the like, is safe to non-target organisms, meets the requirements of green
sustainable development, and has a wide application value.