The invention provides an application of amaranthus in plant disease prevention and treatment, wherein amaranthus leaves are taken as the raw material and extracted by an organic solvent to obtain an extract, acidovorax avenae subsp.citrulli, xanthomonas axonopodis pv. Citri and rhizoctonia solani are selected as sites of action, and research on indoor bacteriostasis effect and in-vitro and pot culture control effects is performed to find that the amaranthus leaf extract has an inhibition effect on acidovorax avenae subsp.citrulli, xanthomonas axonopodis pv. Citri and rhizoctonia solani; and the in-vitro and pot culture tests also indicate that the amaranthus leaf extract has certain prevention and treatment effects on acidovorax avenae subsp.citrulli, xanthomonas axonopodis pv. Citri and rhizoctonia solani; and all the facts show that the amaranthus has prevention and treatment effects on the plant diseases in addition to edible and medical values. The research discovers and expands the functions of the vegetable, and simultaneously provides a new train of thought and a new way for studying and developing biopesticide for preventing and treating the plant diseases.

Application of amaranthus in plant disease prevention and treatment

A provided natural fungicide for prevention and control of strawberry black spot is prepared from the following components: garlic, mint, lotus leaf, herba schizonepetae, terminalia chebula, artemsia argyi, cassia bark, cornus officinalis, phryma leptostachya, and myrrh. The natural fungicide for prevention and control of strawberry black spot is rich in raw material sources and low in cost, is prepared by adopting the pure natural components, not only is non-toxic and pollution-free, but also can effectively prevent and control strawberry black spot.

Natural fungicide for prevention and control of strawberry black spot and preparation method thereof

The invention discloses a pure plant preparation for preventing and treating plant canker diseases. The pure plant preparation is prepared by the following materials according to certain weight part: wild-mountainous tea, white birch leaves, walnut green seedcase, mountain elm leaves, pokeberry root, affine cudweed, calamus, humifuse euphorbia herb, nepeta yanthina, white pepper and wild bee honey. The invention also discloses a preparation method of the pure plant preparation. The preparation method comprises the following specific steps: weighing all materials according to the specified ratio, and respectively removing impurities in all the materials except the wild bee honey; respectively disinfecting all the materials except the wild bee honey, respectively juicing by high-temperature soaking, and carrying out monomer reaction on all the obtained single juices; fully mixing all the juices and the wild bee honey, sieving, purifying, and standing for mixing reaction; and stirring the mixed juices uniformly, and carrying out packet package to obtain the preparation. The pure plant preparation disclosed by the invention has an obvious preventing and treating effect for the plant canker diseases caused by infection of pseudomonas syringae, has no influence on plant products, has no pollution to the environment, and is an ideal medicament for preventing and treating the plant canker diseases.

Pure plant preparation for preventing and treating plant canker diseases and preparation method thereof

The invention relates to the technical field of pseudomonas mosselii, in particular to pseudomonas mosselii. The pseudomonas mosselii is preserved in China General Microbiological Culture Collection Center with preservation number of CGMCC No. 12222. The pseudomonas mosselii has an antibacterial effect on pathogenic bacteria of rice blast, rice bakanae disease, rice sheath blight disease, rice seedling blight and rice false smut.

Pseudomonas mosselii and application thereof

Belonging to the technical field of chromatographic columns, the invention particularly provides a simple semi-automatic chromatographic column, which includes a chromatographic column (13). A liquid storage bottle (9), a flow control valve (10), a flow meter (11), the chromatographic column (13), a filtering sand core (16), a drain valve (17) and a collection bottle (18) are communicated in order from top to bottom. A floating ball component (7) is mounted in the liquid storage bottle (9), and is communicated with a liquid adding bottle (4) through an infusion tube (6) installed below the liquid adding bottle (4). The floating ball component (7) is composed of a floating ball (8) in fixed connection with the lower ends of two floating ball arms (23), a sealing cover (24) over the floating ball and a bottom plate (25) below the floating ball. And the floating ball arms (23) are in flexible connection with the outlet end of the infusion tube (6). The chromatographic column provided in the invention can realize automatic liquid adding, flow speed control, rapid loading and unloading of filling materials, and separation speed improvement.

Simple semi-automatic chromatographic column

The invention belongs to the technical field of biopesticide, and in particular relates to pseudomonas aeruginosa SU8 The pseudomonas aeruginosa SU8 is preserved in China Center For Type Culture Collection on may 7, 2013 with the preservation number of CCTCC NO:M2013178 The ethyl acetate extract of the SU8 fermentation liquor can be compounded with validamycin to have synergistic effect on the prevention and treatment of rhizoctonia solani, and the extract also has inhibition effects on xanthomonas oryzae pv oryzicola and xanthomonas axonopodis pv citri

Pseudomonas aeruginosa strain

An Alcaligenes faecalis B137W is preserved in China Center for Type Culture Collection on May 7, 2013, and has a preservation number of CCTCC NO:M2013176. A fermentation filtrate of the above strain has an inhibition effect on Rhizoctonia solani, Fusarium graminearum, Colletotrichum capsici and Alternaria alternate, the inhibition effect of the fermentation filtrate on the Rhizoctonia solani is strongest, and the inhibition rate of the fermentation filtrate of the Alcaligenes faecalis B137W to the Rhizoctonia solani is 60.26% and is equal to the inhibition of validamycin to the Rhizoctonia solani, so the stain can be developed into bio-control agents.

Liu Shuangqing

Papers

Application of amaranthus in plant disease prevention and treatment

Pseudomonas aeruginosa strain

Simple semi-automatic chromatographic column

Alcaligenes faecalis strain

Application of radix paeoniae alba extract