Today, I'm here to talk to my friends about the three-stage biological control technology of ginger rotting neck disease.
The three-stage biological control technology of ginger rotting neck disease is an effective prevention and control technology summarized by Professor Liu Changhong, School of life sciences, Nanjing University, according to the characteristics of ginger rotting neck disease and the efficacy of ginger Wuyou products.
The three-stage biological control technology of ginger rotten neck disease is to kill the pathogenic bacteria of ginger rotten neck disease in three stages of ginger laying, small cultivating and large cultivating, to prevent the pathogenic bacteria from infecting ginger through the wound, so as to achieve the purpose of preventing and controlling the occurrence and harm of the disease.
As we all know, ginger neck rot is mainly caused by ginger species and soil borne bacteria.
It is difficult for us to control the internal bacteria in ginger, so we can only avoid the internal bacteria by selecting disease-free ginger.
We can prevent and control the bacteria on the surface of ginger and soil. External pathogenic bacteria can only enter ginger through wound, and it will come into being when meeting appropriate environmental conditions.
In the process of ginger planting, there are three stages: placing ginger, small cultivating soil and large cultivating soil. Because of our farming operation, there will be a lot of wounds. If these wounds are not treated, a lot of pathogenic bacteria will enter ginger. Only in these three stages to prevent the pathogen from infecting ginger through wound, can we effectively prevent and control the occurrence of neck rot. This is the root of the three-stage biological control technology of neck rot.
In these three stages, many ginger farmers choose chemical fungicides. The chemical fungicide has a single effect and short duration, most of which are 7-10 days. It can only kill part of the pathogenic bacteria and can not form a protective layer. Long term use of the pathogenic bacteria of neck rot will also produce resistance, so it is difficult to achieve the expected effect.
Some Jiang Nong friends choose microbial fertilizer to control the rot neck disease, but the general microbial fertilizer only forms the dominant population around the ginger root system, which limits the reproduction of the pathogen of rot neck disease. When there are a large number of pathogens, the effect is very small.
Ginger wormwood is a new type of microbial preparation, which mainly depends on the metabolites secreted by beneficial microorganisms in the product, rather than relying solely on the beneficial microbial flora. Compared with other microbial preparations, ginger wormwood can directly kill the pathogenic bacteria of neck rot, effectively prevent and control the harm of neck rot, stimulate the development of ginger block and root system, promote the healthy growth of ginger seedlings, and significantly improve the yield under the dual effects of metabolites and beneficial microbial flora.
Spraying ginger wormwood on the ginger mother, or the base of ginger stem, can directly kill the pathogenic bacteria of rotten neck disease in the soil around the ginger mother surface and root system, reduce the number of pathogenic bacteria in the soil, and also reduce the infection probability of rotten neck disease. At the same time, ginger wormwood is close to the wound of ginger mother and ginger root system, forming a protective layer in the wound, blocking the infection pathway of pathogenic bacteria, and effectively protecting the healthy growth of ginger root system.
The characteristics of ginger planting are the crop basis of three-stage biological control technology. The product basis of three-stage biological control technology is to kill pathogenic bacteria and block the transmission of pathogenic bacteria. The crop basis and product basis complement each other and are indispensable.