Raoultella ornithinolyticus strain SK2021-1 and application thereof in prevention and control of snails in dry land

Abstract

The invention belongs to the technical field of agriculture, and particularly relates to a raoultella ornithinolyticus strain SK2021-1. The raoultella ornithinolyticus strain SK2021-1 is preserved in the China General Microbiological Culture Collection Center, the classification name of the raoultella ornithinolyticus strain SK2021-1 is raoultella ornithinolyticus strain SK2021-1, and the preservation number of the raoultella ornithinolyticus strain SK2021-1 is CGMCC No.22783; the invention also relates to an application of the raoultella ornithinolyticus strain SK2021-1 in prevention and control of snails in dry land. The raoultella ornithinolyticus strain SK2021-1 is prepared into a prevention and control fungicide for prevention and control of the snails in the dry land. The raoultella ornithinolyticus strain SK2021-1 has the advantages of simple nutrition, high propagation speed, high number of effective viable bacteria, stable performance and the like, compared with a traditional dry land snail prevention and control method, the prevention and control fungicide prepared from the raoultella ornithinolyticus strain SK2021-1 is simpler, more convenient, safer and more efficient.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a Raoultia ornithinolyticum strain SK2021-1 and its application in preventing and controlling dry land snails. Background technique [0002] Dryland snails generally refer to terrestrial snails, which live in bushes, low grass, farmland and dark and humid areas near houses, orchards, and hillside grass. Snails are nocturnal and start to move and feed after dusk, reaching a peak between 20 and 23 o'clock in the evening. After midnight, the food intake gradually decreases, and they stop feeding in the early morning, and sneak into the soil or hidden places. Snails like dark and humid environments, and can move around day and night and feed on rainy days or after watering. [0003] Dry land snails have a very wide range of foraging. They mainly eat leaves, stems, buds, flowers and juicy fruits of many crops. They generally move around in large numbers during April-M...

AI Technical Summary

Problems solved by technology

[0004] (1) Agricultural prevention and control: such as mulching cultivation with plastic film, reasonable dense planting, thinning branches and whole leaves, removing weeds in the field, deep plowing and drying the ground in autumn, and reducing the humidity of the environment, which is not conducive to the life of snails, so as to achieve the goal of preventing and controlling snails. effect, but this method requires a lot of labor and the control effect is low

[0005] (2) Artificial trapping: In the evening, pile up leaves, weeds, vegetable leaves, etc. in the field, place a pile every 3-5 meters, create a humid environment to attract snails, uncover the accumulations before dawn, and manually capture them Elimination, this method also requires a lot of manpower

[0006] (3) Chemical control: Use 0.5-0.6 kg of 6% Mida snail-killing granules, 300 grams of 30% polyaldehyde carbaryl granules, 500 grams of 10% metaldehyde granules and other chemical pesticides per mu, mix Appropriate amount of fine soil or fine sand, evenly spread in the field in the evening, this method has a certain control effect, but chemical pesticides may cause poisoning to humans and animals, and also cause environmental pollution

[0007] In summary, although the current common dryland snail control measures have a certain control effect, they are not simple enough, inefficient, and poor in safety. Therefore, it is very important to develop a simple, efficient and safe biological control technology and preparation. Needed

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