Bacillus cereus strain B2, liquid preparation, preparation method of liquid preparation and application in controlling ellinia trunk rot of hybridized bamboo

Abstract

The invention discloses bacillus cereus strain B2, a liquid preparation, a preparation method of the liquid preparation and an application in controlling rosellinia necatrix of hybridized bamboo. The strain has been preserved in China General Microbiology Center of Committee for Culture Collection of Microorganisms (CGMCC), Chaoyang District, Beijing, China, since 20th June, 2013, and has a preservation number of CGMCC No.7767 and a classified name of bacillus cereus. The above liquid preparation is diluted by 100-200 times (volume ratio) and is poured to the root of each of non-pathogeny hybridized bamboos along root system breadth direction with 100 mL per plant and once in spring every year, thereby the generation of rosellinia necatrix can be prevented. The above liquid preparation is diluted by 50-100 times (volume ratio) and is poured to the root of each of morbidity hybridized bamboos along root system breadth direction with 200 mL per plant and once in spring and once in summer every year for three successive years, thereby rosellinia necatrix can be effectively cured.

Description

technical field [0001] The invention relates to a Bacillus cereus B2 strain, a liquid preparation and a preparation method thereof, and an application in preventing and treating hybrid bamboo white spot feather disease. Background technique [0002] Support × green hybrid bamboo is an important economic timber bamboo in the south, and it is also one of the main economic bamboo species introduced and developed in Sichuan and other places. In recent years, the white-striped feather disease of hybrid bamboo caused by Rosellinia necatrix (Hart.) Berl. has led to root rot and the death of whole bamboo plants, resulting in large economic losses and a great threat to the middle and upper reaches of the Yangtze River. The process of returning farmland to forests and the construction of ecological barriers. At present, chemical control and silviculture techniques are mainly used, while research on biological control measures has not yet been involved. Although chemical control is a...

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Problems solved by technology

Although chemical control is an effective control method, there are many practical problems such as pathogen resistance, environment and food safety, and drug damage. Some chemical fungicides have been strictly restricted in many developed countries and regions.

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