41results about How to "Reduce contact toxicity" patented technology

A nanosphere of abamectin used as both medicine and agricultural chemical is prepared through preparing the polylactic acid-polyglycollic acid copolymer (PLGA), mixing abemectin with PLGa, ultrasonicemulsifying, volatilizing solvent, supersonic centrifugal treating, mixing, concentrating, leaching with distilled water, and supersonic centrifugal treating, mixing, concentrating again, and freeze drying at -106- -108 deg.C. Its advantages are slow release, low poison and low cost.

The invention relates to a microcapsule suspending agent compounded by chlorpyrifos and pymetrozine, and a preparation method thereof, and belongs to the pesticide production technology field. The pesticide takes the chlorpyrifos and the pymetrozine as the main active substances, a small amount of organic solvent and emulsifier as the auxiliary material, and takes urea-formaldehyde resin as the cyst membrane material, and is prepared through the interfacial polymerization-solidification method. The toxic components of the compound microcapsule suspending agent are packaged by the urea-formaldehyde resin, and the microcapsule suspending agent has the advantages of security, low-toxicity, high-efficiency, stabilization, etc.; meanwhile, the pesticide ingredient in the product slowly releases through the wrapping material, therefore, the control time of the product is prolonged, and the availability of the pesticide ingredient is improved; and the product is suitable for preventing and controlling pests, such as rice plant hoppers and Chinese chives maggot, etc.

The invention aims to provide a seed treatment agent composition having mouse or bird repellent effects and an application method thereof and provides a composition of a suspension concentrate for seed dressing and a sustained release repellent. The contact between seeds and chemical components is reduced to the largest extent through layered coating, the goal of driving mice or birds can be achieved while insect killing and sterilization for promoting plant growth are achieved, the goal of adding a sustained release agent is to reduce the influence of the repellent on pesticide active ingredients and avoid pesticide hazard, and the mouse and bird repellent duration of the repellent can be prolonged. The composition can be widely applied to agriculture, forestry and grassland farming seed ratproof treatment, and the blank of a seed treatment agent in the function is filled.

The invention relates to the technical field of solenopsis invicta buren control preparation; the solenopsis invicta buren contains the following constituents by mass percentage: 0.01-0.6 percent of insecticidal active constituents including chlopyrifos or nicouline; 0.001-1 percent of microcapsule membrane material; 75-78 percent of fried flour, 15.37-21.979 percent of peanut oil, 3-5 percent ofwhite granulated sugar or brown sugar, and 0.01-0.03 percent of preservative. The bait has good insecticidal effect to the solenopsis invicta buren injurious insects, and the insecticidal active constituents which can not be prepared into bait directly are prepared into microcapsule water suspension, and then the solenopsis invicta buren bait is prepared, thereby not only covering the odor which is not loved by solenopsis invicta buren in the production of the solenopsis invicta buren bait, but also reducing the contact toxicity, inhalation toxicity and phytotoxicity of the preparation; indoorpesticide effect experiments and field tests are carried out in the invention, so as to prove that the solenopsis invicta buren bait has good control effect to the solenopsis invicta buren.

The invention discloses a high-efficient cyhalothrin microcapsule suspending agent and a preparation method thereof; the suspending agent comprises the following components by weight: 1%-10% of high-efficient cyhalothrin, 3%-20% of a capsule core solvent, 5%-30% of a capsule wall material, 3%-10% of an emulsifier, 1%-5% of a dispersant, 0.1%-10% of a pH adjusting agent, and the balance of deionized water. The invention also discloses the preparation method of the high-efficient cyhalothrin microcapsule suspending agent. The product of the invention is low in cost, stable in performance, good in insecticidal effect, long in persistent period, low in toxicity, friendly to environment, and safe for people and livestock, and can meet the requirements of insect pollution-free control.

The invention discloses a chenopodium ambrosioides volatile oil microcapsule and a preparation method thereof and solves the problem that a conventional chemical bactericide is short in lasting period. A core material of the chenopodium ambrosioides volatile oil microcapsule is chenopodium ambrosioides volatile oil; a wall material is beta-cyclodextrin; the volume-weight ratio of the chenopodium ambrosioides volatile oil to the beta-cyclodextrin is 1 to (6-10). The preparation method comprises the steps of heating distilled water, adding 9-15 percent of the beta-cyclodextrin into the distilled water for dissolving the beta-cyclodextrin, stirring at a constant speed to obtain a beta-cyclodextrin aqueous solution, dissolving the chenopodium ambrosioides volatile oil through absolute ethyl alcohol according to the volume ratio of the chenopodium ambrosioides volatile oil to the absolute ethyl alcohol of 1 to (15-30) to obtain a chenopodium ambrosioides volatile oil and ethyl alcohol solution, gradually dropwise adding the chenopodium ambrosioides volatile oil and ethyl alcohol solution into the beta-cyclodextrin aqueous solution, stirring to obtain a mixed solution, putting the mixed solution into a refrigerator after the mixed solution is cooled, stewing the mixed solution, performing vacuum filtration, and drying the mixed solution until the weight is constant. The chenopodium ambrosioides volatile oil microcapsule has a good packaging effect, has the characteristics of being low in release speed, capable of prolonging of lasting period and safe to human and livestock and has small influence on the environment and non-target organisms.

The invention relates to encapsulated emamectin benzoate microspheres and a preparation method thereof. The preparation method of the present invention solves the problems of low encapsulation efficiency and drug surface crystallization in traditional methods for preparing emamectin benzoate microspheres, alleviates environment stress caused by traditional non-degradable wall materials such as polyureas, polyurethane, and the like, and solves the problem of overquick burst release easily seen in traditional pesticide microspheres. The encapsulated biodegradable emamectin benzoate microspheres of the invention is wide in control spectrum, high in drug effect, strong in stability, less in environment pollution, long in lasting period, and low in control cost, and meets the requirements for pollution-free agricultural production.

The invention discloses a biodegradable spinosyn / emamectin benzoate microsphere and a preparation method thereof. According to the microsphere prepared in the invention, a core material is wrapped with biodegradable materials such as polylactic acid, polycaprolactone, and stearic acid; the microsphere has the advantages of safety, low toxin, high efficiency, long lasting period, and good stability, and has the advantage of good environment compatibility when compared to microcapsules with polymer wall materials most used currently. Meanwhile, aiming at the problem that drug release is too fast or too slow for most products with a single wall material, the method of the invention realizes adjusting control of the microsphere slow release performance by changing the ratio of polylactic acid, polycaprolactone and stearic acid in the wall materials.

The invention discloses an indoxacarb microcapsule suspension and a preparation method thereof. The suspension comprises the following components by weight percent: 1-10% of indoxacarb, 3-20% of capsule core solvents, 5-30% of capsule wall material, 3-10% of emulsifying agents, 1-5% of dispersing agents, 0.1-10% of pH regulator and the balance of deionized water. The invention also discloses the preparation method of the indoxacarb microcapsule suspension. The product has the advantages of low cost, stable performance, good insecticidal effect, long efficacy duration, low toxicity, environmental friendliness, safety for people and livestock and capability of meeting the requirement for nuisanceless control of pests.

The invention relates to the technical field of crop pesticides, in particular to a micro-capsule suspending agent containing thiamethoxam and carbosulfan and a preparation method of the micro-capsule suspending agent. The micro-capsule suspending agent comprises an effective component and an auxiliary material, wherein the effective component comprises the following raw materials in percentage by weight: 1%-20% of thiamethoxam and 5%-30% of carbosulfan; the auxiliary material comprises the following raw materials in percentage by weight: 5%-30% of a capsule wall material, 5%-20% of a solvent, 0-3% of a synergist, 1%-15% of an emulsifier, 0.5%-10% of a suspending agent, 0-10% of a dispersing agent, 0-10% of an antifoaming agent and the balance of water; and the mass of the effective component accounts for 10%-45% of that of the mixed preparation. The suspended rate of the carbosulfan and thiamethoxam micro-capsule suspending agent is greater than or equal to 90%; meanwhile, the micro-capsule suspending agent has the advantages of low pesticide toxicity, long lasting time, high insecticidal control effect, simple preparation technology and the like; rice thrips of rice, underground pests of peanut and aphids of wheat paddock can be effectively prevented and controlled; and the yield of crops is increased.

The invention discloses a microcapsule preparation for coating solid pesticide raw drug and a preparation method of the microcapsule preparation, and specifically relates to the technical field of pesticide preparations. The microcapsule preparation comprises capsule skin and a capsule core, wherein the capsule core is encapsulated inside the capsule skin; the capsule skin is composed of any one or two of animal and plant gum, urea formaldehyde gum, melamine formaldehyde resin, isocyanate and polyamine; the capsule core comprises at least one active component of solid pesticide and one or moresurfactants. The microcapsule pesticide preparation inhibits the decomposition and loss of pesticides by light, heat, air, water, microorganisms and other chemical substances in the environment, andimproves the stability of the pesticide. At the same time, the capsule skin can reduce the volatility of pesticides, conceal the original odor, reduce contact toxicity, inhalation toxicity and drug harm, and relieve the irritation to human beings and animals and the toxicity to fish.

The invention discloses a Pyraclostrobin / Isoprothiolane microcapsule suspension, a preparation method therefor and an application of the Pyraclostrobin / Isoprothiolane microcapsule suspension. The microcapsule suspension is prepared from the following ingredients in percentage by weight: 2.5% to 5% of Pyraclostrobin, 10% to 21% of Isoprothiolane, 3% to 10% of capsule-core solvent, 15% to 25% of capsule wall material, 3% to 7.5% of emulsifier, 3.4% to 4.7% of auxiliaries and the balance of water. Compared with the prior art, the microcapsule suspension has the advantages that the microcapsule suspension is prepared from Pyraclostrobin and Isoprothiolane crude pesticides through compounding and microcapsulation technologies, and the two kinds of pesticide ingredients are encapsulated in non-toxic capsule membranes, so that the contact toxicity of pesticide products can be lowered, and the stability of effective ingredients is further improved greatly; in addition, the effective control time of the products can be prolonged obviously, so that the repeated consumption of pesticides can be effectively avoided, and the pollution to environments is alleviated; and the conventional chemical raw materials are used, so that the comprehensive cost is low, the microcapsule suspension is in line with the direction of development of pesticide preparations, and the application prospect is relatively extensive.

The invention relates to a microcapsule suspending agent compounded by chlorpyrifos and pymetrozine, and a preparation method thereof, and belongs to the pesticide production technology field. The pesticide takes the chlorpyrifos and the pymetrozine as the main active substances, a small amount of organic solvent and emulsifier as the auxiliary material, and takes urea-formaldehyde resin as the cyst membrane material, and is prepared through the interfacial polymerization-solidification method. The toxic components of the compound microcapsule suspending agent are packaged by the urea-formaldehyde resin, and the microcapsule suspending agent has the advantages of security, low-toxicity, high-efficiency, stabilization, etc.; meanwhile, the pesticide ingredient in the product slowly releases through the wrapping material, therefore, the control time of the product is prolonged, and the availability of the pesticide ingredient is improved; and the product is suitable for preventing and controlling pests, such as rice plant hoppers and Chinese chives maggot, etc.

The invention discloses a chlorfenapyr microcapsule suspension and a preparation method thereof. The chlorfenapyr microcapsule suspension consists of the following components in percentage by weight: 1 to 10 percent of chlorfenapyr, 3 to 20 percent of capsule core solvent, 5 to 30 percent of capsule wall material, 3 to 10 percent of emulsifying agent, 1 to 5 percent of dispersing agent, 0.1 to 10 percent of pH regulator and the balance of deionized water. The invention also discloses the preparation method for the chlorfenapyr microcapsule suspension. The product has the advantages of low cost, high stability, excellent efficacy, long duration, low toxicity and little environment pollution, is safe to use, and can meet the requirement of pollution-free agricultural production.

The invention relates to the technical field of pesticide production, in particular to a coated aqueous suspension agent and a preparation method thereof. The coating-type aqueous suspension includes the following raw materials in parts by mass: 5-20 parts of pesticide original drug, 1-20 parts of cationic dispersing wetting agent, 0.5-2 parts of tetraethyl orthosilicate, and 1-20 parts of antifreeze agent. 5 parts, 0.1-0.5 parts of defoamer, 0.1-0.5 parts of viscosity modifier, 0.1-2 parts of stabilizer and 100-120 parts of deionized water. The coated aqueous suspension prepared by the invention can reduce the decomposition and volatilization of the pesticide, conceal the original peculiar smell of the pesticide, and is friendly to organisms and the environment. The original drug is stably dispersed in water for a long time, and is not easily affected by the environment and has the phenomenon of layering and bottoming. The suspending agent product prepared by the invention has excellent performance, low investment in production equipment, simple production process, stable product quality, is suitable for large-scale production, and has high social value.

The invention discloses a cyazofamid microcapsule suspending agent and a preparation method thereof. The cyazofamid microcapsule suspending agent comprises the following components by weight parts: 1-10 parts of cyazofamid, 3-20 parts of capsule-core solvent, 5-20 parts of wall material, 3-10 parts of emulsifying agent, 1-5 parts of dispersant and the balance of water. The invention also discloses a preparation method of the cyazofamid microcapsule suspending agent. The cyazofamid microcapsule suspending agent provided by the invention has the advantages of long duration time, low toxicity, environment friendliness, safety for human and livestock and is unlikely to generate drug resistance. The cyazofamid microcapsule suspending agent is stable in performance, easy to degrade, long in duration time for crop diseases and small in environment pollution. Compared with the prior art, the invention provides the more environment-friendly pesticide agent and meets the demand of agricultural pollution-free control.

A microsoftgel-type green agricultural chemical features that its microsoftgel is composed of core and skin. It is prepared through dissolving raw agricultural chemical in solvent, adding assistant, plant oil, surfactant and solvent to obtain core, hydrolyzing the animal glue, plant gum and sea product gelatin, filtering, mixing to obtain skin, mixing said core with skin, stirring at 200-600 rpm, and naturally cooling for 2 hr. Its advantages are high effect and durability, and low cost.

The invention provides a paclobutrazol micro-capsule suspension preparation provided with sustained-release function, which includes the following components according to 100 parts by weight: 10 to 30 parts of film-forming materials, 5 to 40 parts of paclobutrazol, 5 to 10 parts of emulsifying agent and the rest parts of water. The potency of the suspension preparation is more moderate, the potency releases slower and lasts long, thus ensuring the adjustment of steady growth of plants and having the sustained-release function. The invention also provides a preparation method of the paclobutrazol micro-capsule suspension preparation.

The invention provides a new pesticide formulation with a microcapsule suspending agent and a water agent as well as a preparation method and application thereof, and relates to the field of pesticides. The new pesticide formulation with the microcapsule suspending agent and the water agent is mainly prepared from microcapsule suspension liquid medicines and water agent type medicines. The dosageform is the new one of the field of pesticides, the problem that non-water-soluble medicines and water-soluble medicines cannot be compounded and used in one dosage form in the prior art can be solved, and the aims of reducing the production energy consumption, reducing environmental pollution and improving a comprehensive prevention and control effect are fulfilled.