Composition for controlling black-necked disease of flue-cured tobacco and preparation method of composition

Abstract

The invention relates to the field of pesticides and in particular relates to a composition for controlling black-necked disease of flue-cured tobacco. The composition comprises the following raw materials in parts by weight: 8-12 parts of perfoliote knotweed herb, 12-18 parts of physalis alkekengi, 12-18 parts of tribulus terrestris, 3-8 parts of elongata roxb, 12-18 parts of polygonum chinense,2-6 parts of Japanese ardisia, 12-18 parts of inula herb, 3-8 parts of herba chelidonii, 10-20 parts of cortex lycii radicis, 12-18 parts of biebersteinia heterostemon, 8-12 parts of herba elsholtziae, 8-12 parts of sundew, 10-20 parts of fruticose breynia juvenile branchlet and leaf, 12-18 parts of compound bacteria and 10-20 parts of compound amino acids. According to the composition disclosed by the invention, growth of viruses can be effectively inhibited; and in the application process, the composition disclosed by the invention does not cause damage to the flue-cured tobacco and has an obvious effect of controlling the black-necked disease of the flue-cured tobacco. Viruses are effectively contained and killed, intrusion of the viruses on the flue-cured tobacco is reduced, and the safety of the flue-cured tobacco is ensured.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a composition for preventing and treating flue-cured tobacco black neck disease and a preparation method thereof. Background technique [0002] Fluecured Tobacco (Fluecured Tobacco), also known as fire-pipe flue-cured tobacco, originated in Virginia, USA, and has special morphological characteristics, so it is also called Virginia type. Flue-cured tobacco is the type of flue-cured tobacco with the largest cultivation area in my country and the world. It is the main raw material of the cigarette industry and is also used as pipe tobacco and flue-cured tobacco planting. Many rural areas in our country are suitable for planting and development, especially in the southwest Antarctic side of the motherland, which is inland and lacks sea, land and air transportation conditions - the ethnic mountainous area in Yunnan Province. Practice has shown that "it has become a place for many tobacco farm...

AI Technical Summary

Problems solved by technology

At present, 75% thiophanate-methyl is used for black neck disease, and the dosage is 80g+water 100kg / 667m2; 20% Thiobacterium copper, dosage 60g+water 100kg / 667m2; Thiofuramide, dosage 100mL+water 100kg / 667m2; CK (water), The dosage is 100mL+water 100kg / 667m2 for prevention and control, but the traditional spraying of chemicals will cause drug residues, which will cause harm to the human body, and the effect of disease control is not significant. Effective improvement is the focus of current research