Biological preparation capable of preventing and treating rice streak disease and promoting growth and application thereof

• Main Authors: WEI LANFANG, JI GUANGHAI, MA GAIZHUAN, CHEN XINGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 06.01.2010
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

The invention relates to a biological preparation capable of preventing and treating rice streak disease and promoting growth and application thereof, belonging to the technical field of biological pesticide. The biological preparation is prepared by a conventional method, and a producing strain is YFY02 (Lysobacter ginsengisoli). The strain of the biological preparation is characterized in that (1) the colony is round and in a opaque dilute liquid shape, and is dark yellow at initial stage of culture and chocolate brown or dark brown at later stage of culture, and the thallus is in the shape of a long rod; (2) the strain has strong bacteriostatic ability and wide antibacterial spectrum, can keep value on leaf surfaces of crops such as rice and the like and roots of crops such as konjak, calla and the like, can generate substances similar to antibiotics to promote the growth of crops of rice and the like, and has obvious and stable effect on preventing and treating rice streak disease. In the invention, the s