Dufulin-containing ultra low volume liquid formulation

Abstract

The invention relates to a Dufulin-containing ultra low volume liquid formulation, which is prepared by using Dufulin or Dufulin and an active component II as active components and adding an auxiliary agent and a solvent. The active component II is any one selected from the group consisting of ningnanmycin, moroxydine hydrochloride, amino-oligosaccharin, chlorobromoisocyanuric acid and lentinan. The invention has advantages of simple processing, high work efficiency, water conservation, long persistent period, targets which are not easy to generate drug resistance, low environmental pollution, synergist effects and the like. Through ultra low volume spray, low volume spray or ultra low volume static electro-spray, a plurality of diseases of crops such as paddy rice, tobacco, corn, cotton, orange, capsicum, tomato, rape and the like can be prevented and cured.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to an ultra-low volume liquid containing toxic fluorophosphorus. Background technique [0002] Plant virus disease is a disease caused by plant virus parasitism. Plant virus is a non-cellular parasitic living organism composed of a nucleic acid molecule (DNA or RNA) and protein, which has strong infection and destructive power. According to statistics, the average annual loss caused by plant diseases in the world is 60 billion US dollars, and plant virus diseases are in the second place after fungal diseases. As a parasitic organism of plants, plant virus diseases have strong destructive power to the growth and development of plants. Especially in recent years, with the change of climate, the expansion of arid climate area has created favorable conditions for the occurrence and spread of viral diseases. However, the domestic development of agents to prevent and sup...

AI Technical Summary

Problems solved by technology

[0017] 1. The work efficiency of the conventional spraying method is low, and the work efficiency per capita is usually only 2-5 mu / day, which is difficult to meet the needs of large-scale planting

[0018] 2. Conventional spraying method needs a lot of water to control diseases and insect pests, usually the water consumption is 450~900L / hm 2 , and in many areas far away from water sources and arid and water-scarce areas, conventional spraying methods are difficult to implement or cannot achieve the desired control effect

[0019] 3. The medicines used in the conventional spraying method have a short duration of action. Since the dosage forms of the medicines used in the conventional spraying method are usually emulsifiable concentrates, water preparations, wettable powders, suspension concentrates, and water-emulsions, there are certain defects in use:

[0020] (1) Due to the addition of a large amount of water for dilution, the concentration of the medicinal solution is very low, and the surface tension is often high. The adhesion, wettability, and permeability on the surface of the crop or target with a waxy layer are poor, and it is difficult to effectively enter In vivo of crops and targets, resulting in poor control effect;

[0021] (2) In the natural environment of light, high temperature, and dryness, the water in the liquid medicine is easy to evaporate, causing the medicine to only remain on the surface of the crops, and it is easy to fall off from the crops after photolysis and drying and become invalid;

[0022] (3) The droplet size of conventional spraying is relatively large, reaching 200-600 μm, which leads to the easy loss of the liquid medicine sprayed on the surface of crops or targets

[0023] (4) For a long time, the single and frequent use of pesticide varieties has increased the resistance of biological targets to the pesticide itself, which is not conducive to the prevention and control of harmful organisms

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