11 results about "Bordeaux mixture" patented technology

The application discloses a kind of biological pesticides for efficiently preventing and treating asparagus stem blight, comprising the following raw materials by weight parts: carbendazim 5-10 parts, mancozeb 3-6 parts, chlorothalonil 5-8 parts, benlate emulsion 1-5 parts, bordeaux mixture 1-4 parts, bacteriostatic net 2-5 parts, water 150-200 parts, radix isatis 20-30 parts, coptis 15-25 parts, purslane 25-30 parts, dandelion 10-15 parts, isatis leaf 10-15 parts, amomum villosum 5-10 parts, anise 8-15 parts.The extract B extracted from Chinese herbal medicine radix isatis, coptis, purslane, dandelion, isatis leaf, amomum villosum and anise is added in chemical agent carbendazim, mancozeb, chlorothalonil, benlate emulsion, bordeaux mixture and bacteriostatic net, so that the biological pesticides for efficiently preventing and treating asparagus stem blight is finally obtained, which avoids the reduction of prevention and treatment effect on asparagus stem blight by using only chemical agent for a long time.The experimental data shows that the biological pesticides for efficiently preventing and treating asparagus stem blight prepared by the application can effectively prevent and treat asparagus stem blight.

The invention provides application of mineral oil in improving the control effect of a copper preparation on broccoli black rot and relieving phytotoxicity, and belongs to the technical field of plant disease control. According to the invention, a 200-fold diluent of 99% mineral oil and a 200-800-fold diluent of 30% copper oxychloride suspending agent are compounded according to a ratio of 1: 1 to prepare a compound medicament, and the compound medicament can be applied to prevention and treatment of black rot of broccoli; the prevention and control method comprises the step of spraying the compound pesticide on leaf surfaces. The mineral oil and the copper oxychloride suspending agent are compounded to generate a synergistic effect, so that the prevention and treatment effect on the broccoli black rot is improved, the phytotoxicity caused by copper preparation stress is reduced, and the composition is resistant to rain wash, long in lasting period and suitable for efficient and green prevention and treatment of the broccoli black rot.

The invention belongs to the technical field of inactivation of pathogenic microorganisms in a water body, and discloses a method for oxidizing and inactivating pathogenic microorganisms in a water body by activating persulfate through a Bordeaux mixture and application. The method comprises the following steps: adding a Bordeaux mixture into a pathogenic microorganism-containing polluted water body, then adding a persulfate solution to form a reaction system, and vibrating at normal temperature to simulate a real water body so as to realize inactivation of pathogenic microorganisms. The invention provides a novel method for inactivating water pathogenic microorganisms such as escherichia coli and enterococcus faecalis, persulfate is activated by Bordeaux mixture to generate sulfate free radicals and hydroxyl free radicals, and basic copper sulfate and calcium sulfate precipitate synergistically flocculates and settles pathogenic bacteria residues. Wherein the inactivation effect of the Bordeaux / PS system within 5 minutes reaches 99% or above.

The invention discloses a comprehensive prevention and control method for dragon fruit snails, which comprises the following steps: (1) a daily prevention method: combining agricultural prevention and control, chemical prevention and control and biological prevention and control, and spraying a tea seed bran soak solution or a 30% tea saponin aqueous solution; (2) a medium-and-long-term prevention and treatment method: spraying tea saponin Bordeaux mixture after pruning in March to April and before flowering; (3) a long-term prevention and treatment method: mounting snail obstructing devices on pitaya flesh stems and cement supporting columns 40-50cm away from the ground, and coating copper sulfate on the obstructing devices; and applying an organic fertilizer containing a tea bran component in February every year. According to the method, multiple prevention and control measures are combined, the problem that the drug resistance of snails is enhanced due to long-term use of a single chemical agent is solved, tea saponin and copper sulfate are combined in all links to supplement traditional chemical agent prevention and control, and use of chemical agents is reduced. The snails are prevented from climbing upwards by using physical means such as obstructors on the dragon fruit plants and the columns, so that the harm to the environment is small, and the prevention and treatment effect is obvious.

The invention provides a method for preventing and controlling damage of a corn herbicide to flue-cured tobacco, and relates to the technical field of flue-cured tobacco plant protection. The method comprises the following steps: S1, spraying a Bordeaux mixture twice after wheat harvesting and summer corn seedling emergence respectively; s2, in the flue-cured tobacco resettling stage, chitin, seaweed fish protein and bacillus subtillis are applied in a drip irrigation mode in combination with irrigation of vigorous growth water; s3, in the squaring stage of the flue-cured tobacco, chitin seaweed fish protein and bacillus subtillis are applied in combination with flat-top water irrigation and drip irrigation; s4, spraying Yunlei in the vigorous growth period of the flue-cured tobaccos. The method focuses on prevention, conforms to the agricultural prevention and control principle, is accurate in prevention and control time, covers the most critical periods of the flue-cured tobacco forming yield and quality, is remarkable in effect, and can effectively reduce the incidence rate and improve the flue-cured tobacco yield and value.

Provided is a stock solution composition for Bordeaux liquid that has a neutral pH range, is less likely to cause discoloration or deterioration over time, is stable even when stored for a long period, and exhibits medicinal effects such as a sufficient bactericidal effect. 【Solution means】The Bordeaux liquid composition is a water suspension containing, in a quantitative ratio in 100 parts by mass of a solid component or a dry component, 50 to 95 parts by mass of gypsum, 2 to 30 parts by mass of posnjakite, and 2 to 30 parts by mass of calcium basic copper sulfate trihydrate, and containing no brochantite or containing at most 0.8 parts by mass thereof.

The present invention belongs to the field of nano-pesticides, in particular to the preparation of a suspension of a water and solvent insoluble pesticide having a particle size of less than 100 nm, especially less than 50 nm. A nano-suspension of basic copper sulphate particles in a water soluble polymeric dispersant, present in a random coil conformation in water.

The invention relates to a degradable spraying agent and process for enhancing disease resistance of Hongyang kiwifruit plants, and the degradable spraying agent is prepared by taking environment-friendly degradable natural polysaccharides or natural polymers, water-soluble high-molecular polymers, a coalescing agent, a wetting agent, a bactericide and deionized pure water as raw materials through weighing, blending, grinding, compounding, sealing and packaging. The prepared degradable spraying agent can be sprayed and smeared, the pesticide effect of the Bordeaux mixture or lime sulfur is enhanced, the usage amount of the Bordeaux mixture or lime sulfur is greatly reduced, and the degradable spraying agent has a good effect on enhancing the canker and root rot resistance of the Hongyang kiwi fruit plants.

The present application belongs to the technical field of inactivation of pathogenic microorganisms in water bodies, and discloses a method for inactivating pathogenic microorganisms in water bodies by activating persulfate oxidation with Bordeaux mixture and application thereof. The method is as follows: Bordeaux mixture is added to water bodies contaminated with pathogenic microorganisms, and then a persulfate solution is added to form a reaction system, and the reaction system is shaken at room temperature to simulate real water bodies, so as to inactivate the pathogenic microorganisms. The present application provides a new method for inactivating pathogenic microorganisms such as Escherichia coli and Enterococcus faecalis in water bodies. Sulfate radicals and hydroxyl radicals are generated by activating persulfate with Bordeaux mixture, and alkaline copper sulfate and calcium sulfate precipitate and flocculate and settle the pathogenic bacteria residues in cooperation. The inactivation effect of the Bordeaux / PS system within 5 minutes reaches more than 99%.

This invention relates to a transparent Bordeaux mixture nanosuspension and its preparation method, wherein the basic copper sulfate particles in the suspension are smaller than 100 nanometers. The basic copper sulfate particles in the nanosuspension are suspended and dispersed in water in a random coil morphology using a water-soluble polymeric dispersant.

A transparent Bordeaux mixture is a water-in-oil nanoemulsion of basic copper sulfate, in which the basic copper sulfate particles are located within water-in-oil nanosolubilizing micelles. It belongs to a pesticide variety that is insoluble in water and solvents, and is a suspension dispersion with particle size less than 100 nanometers, especially less than 50 nanometers.