122 results about "Captan" patented technology

The present invention discloses synergistic germicide composition with active components including captan and at least one kind of triazole germicide compound. Of the germicide composition, captan and triazole germicide compound have the weight ratio of 1 / 40 to 40 and account for 1-90 wt%. The composition has proper amount of functional assistants and carrier added for being prepared into suspension, wettable powder, water dispersed granule, microemulsion, etc. The composition may be used for preventing and treating diseases caused by oomycetes, ascomycete, basidiomycete and other germs.

The invention discloses a sterilizing composite containing captan. The sterilizing composite comprises an effective and active component, wherein the effective and active component of the sterilizing composite consist of captan as a first active component and methoxyl acrylate bactericide from pyraclostrobin, trifloxystrobin and coumoxystrobin as a second active component; the weight ratio of the first active component to the second active component is 1:10-20:1, and preferred as 1:5-10:1. The sterilizing composite can be prepared into an agriculturally-allowable suspending agent, a suspending emulsion, a suspending seed coating agent, a micro-capsule suspending-suspending agent and seed-treatment dispersible powder. The sterilizing composite disclosed by the invention has the advantages that the components are reasonable, the sterilizing effect is good, the medicine use cost is low, and the activity and the sterilizing effect are not in simple superposition of various components. Compared with the traditional single preparation, the sterilizing composite disclosed by the invention not only has an obvious sterilizing effect, but also has an obvious synergistic action, has no pollution to crops, is good in safety, meets the requirement of safety of pesticide formulations, and has obvious preventing effects on wheat powdery mildew, rice sheath blight diseases, cochliobolus miyabeanus, damping off, vegetable pythium aphanidermatum and downy mildew.

The invention provides a low-toxicity and high-efficiency insecticide for wheat, and relates to the technical field of pesticides. The low-toxicity and high-efficiency insecticide for wheat is prepared from the following raw materials in parts by weight: 80-90 parts of herba artemisiae scoparzae, 10-20 parts of achnatherum inebrians endophytes, 3-5 parts of sodium alkyl benzene sulfonate, 5-10 parts of fenpropathrin, 1-3 parts of cypermethrin, 18-45 parts of pyroligneous, 2-5 parts of captan, 8-10 parts of thiram, 3-5 parts of mancozeb, 20-30 parts of plant extract, 0.5-1 part of manganese sulfate, 15-20 parts of fructus gleditsiae powder, 10-20 parts of herba houttuyniae, 10-12 parts of matrine, 10-15 parts of oxymatrine, 8-10 parts of fructus cnidii extract and 2000-3000 parts of water.The low-toxicity and high-efficiency insecticide for wheat, provided by the invention, has better insecticidal, bactericidal and antibacterial functions, can inhibit reproduction of infectious microbes under low concentration, has anti-bacterial and anti-insect effects, has obvious effects on prevention and treatment of diseases and insect pests of wheat, and has low toxicity and high insecticidalefficiency.

The invention discloses an efficient sterilization composition. The efficient sterilization composition comprises an active component A and an active component B, wherein the active component A is selected from fluopyram; the active component B is selected from any one of the following compounds: dithianon, cyprodinil, captan, fosetyl aluminium, chlorothalonil and bromothalonil; the weight ratio of the active component A to the active component B is 1:80 to 60:1. The composition has high activity to various diseases on a plurality of crops, exerts remarkable synergistic effects, and expands a fungicide spectrum. Moreover, the efficient sterilization composition has the characteristics of small dosage, rain wash resistance, and remarkable efficacy enhancement.

The invention relates to an industrial clean production process of captan, which is characterized in that it comprises the following steps: adding water into a reaction kettle, adding an alkali metal compound and 1,2,3,6-tetrahydrophthalamide under stirring imide or directly add phthalimide salt, after it is completely dissolved, add trichlorothiochloromethane dropwise at 0-30°C, and keep warm for 0.5-3.0 hours. Then the material is transferred to a purification and temperature-increasing treatment kettle, heated to 50-100° C., kept at this temperature for 0.5-5.0 hours, then cooled, filtered, rinsed, and dried to obtain the original drug of decaptan.

The invention discloses a sterilization composition containing penthiopyrad. The sterilization composition contains an active component A and an active component B, wherein the active component A is selected from penthiopyrad; the active component B is selected from any one of the following compounds: cymoxanil, dimethomorph, propamocarb or a salt thereof, iprovalicarb, captan, chlorothalonil, metalaxyl or a salt thereof; the weight ratio of the component A to the component B ranges from (1:80) to (60:1). The composition has a synergistic effect on a plurality of types of diseases which endanger agricultural production; the dosage of pesticides is reduced; the residual amount of the pesticides on crops is reduced and the environmental pollution is alleviated; the composition is safe to human and livestock and has good environment compatibility, and drug resistance of the diseases is not easy to cause.