Microbial source bactericide for controlling cucumber powdery mildew

Abstract

The invention relates to a microbial source bactericide for controlling cucumber powdery mildew. The microbial source bactericide consists of the following raw materials by weight: 1-30wt% of coniferous tree essential oil, 20-50wt% of fatty acid, 1-30wt% of an emulsifier, 0.1-10wt% of a polyvalent alcohol, 10-50wt% of water, 0.1-1wt% of a microbial metabolism product. The components are mixed to form the powdery mildew control agent. The fermented antibiotic Lysobacter's metabolite is organically combined with a protective agent and a dispersing agent to prepare the biocontrol preparation. The biocontrol preparation has the characteristics of rapid penetration, fast efficacy, and wide resistance, and all the raw materials are in line with the organic cultivation standards.

Description

technical field [0001] The invention relates to a microbial source fungicide for preventing and treating cucumber powdery mildew, belonging to the field of plant protection. Background technique [0002] Cucumber powdery mildew is one of the three major diseases facing cucumber production in my country, and it is also a major cucumber leaf disease worldwide. This disease can infect cucumber plants from the seedling stage to the adult plant stage. The characteristics of high disease incidence, short incubation period and frequent reinfestation can lead to reduced yield and affect fruit quality of cucumber. According to statistics, the cucumber yield reduction caused by the disease is about 10% in general years, and it is as high as about 30% in popular years, which has seriously affected the agricultural production of cucumbers. [0003] Use sulfur preparations, benzimidazoles, organophosphorus, phenoxyquinoline, sterol synthesis inhibitors, methoxyacrylates, and succinate d...

AI Technical Summary

Problems solved by technology

According to statistics, the cucumber yield reduction caused by this disease is about 10% in general years, and it is as high as 30% in popular years, which has seriously affected the agricultural production of cucumbers.

[0003] Use sulfur preparations, benzimidazoles, organophosphorus, phenoxyquinolines, sterol synthesis inhibitors, methoxyacrylates, and succinate dehydrogenase inhibitors to control cucumber powdery mildew, chemical control Quick, efficient and stable, but it pollutes the environment and is poisonous to humans and livestock

[0004] Extract osthole, rhubarb and other biological agents to prevent and control cucumber powdery mildew. Although biological agents are environmentally friendly, they are slow to take effect, and their biological activity is easily affected by the environment and unstable. The environmental requirements are strict and the cost is high.

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