16 results about "Buprofezin" patented technology

The present invention discloses a method for quantitatively determining the residues of bipropionate and its metabolite M440I007 in broken tea infusion by PVPP combined with Cleanert TPT solid-phase extraction, which includes steps such as sample extraction, sample purification, UPLC-MS / MS determination, blank test, result calculation and expression, and judgment. First of all, the present invention purifies the test sample through the solid-phase dispersion of PVPP and the Cleanert TPT solid-phase extraction column, which can effectively purify the co-extracted substances that interfere with the detection of the target substance in broken tea infusion; secondly, on this basis, the present invention adopts specific UPLC-MS / MS detection conditions for the target substance; finally, it not only has high extraction efficiency and excellent purification effect, but also can meet the detection requirements in terms of recovery rate, detection limit and precision.

The invention relates to the technical field of compound synthesis and pesticides, in particular to benzothiazinone pyrazole derivatives as well as a preparation method and application thereof, and the general formula of the benzothiazinone pyrazole derivatives is as shown in formula I; the derivative has effective pre-emergence and post-emergence herbicidal activity, is high in safety to crops and can be applied to preparation of herbicides; the derivative is simple in structure and preparation process, low in production cost and wide in application prospect.

The present invention provides a chitin synthesis inhibitor compound-containing pesticide composition, which comprises a first effective component and a second effective component, the first effective component is a compound having a structural formula (I), the second effective component is buprofezin, lufenuron, cyromazine, diafenthiuron, diflubenzuron, chlorbenzuron, hexaflumuron or chlorfluazuron, and the weight ratio of the first effective component to the second effective component is 1-50: 1-50. The invention also provides application of the pesticide composition in prevention and control of agricultural and forestry pests, especially brown planthopper, beet armyworm or liriomyza sativae. The invention verifies that the binary composition of the inhibitor insecticide synthesized from the flufenutraniliprole and the chitin has a remarkable synergistic effect, effectively improves the control effect, reduces the dosage and expands the insecticidal spectrum. The composition disclosed by the invention has an excellent control effect on target pests such as chilo suppressalis, plutella xylostella, green peach aphid, beet armyworm, ostrinia nubilalis, thrips, flea beetle, spider mites, brown planthopper or liriomyza sativae. (I).

The application provides a compound agent for preventing and treating termites based on Serratia marcescens, which comprises 7.75x10 8 ~2.63x10 12 CFU / mL of Serratia marcescens, and a pathogenic fungus or a biological pesticide or an insect growth regulator or a chemical agent; the pathogenic fungus is Beauvaria bassiana or Metarhizium anisopliae; the biological pesticide is ivermectin; the insect growth regulator is lufenuron or buprofezin or diflubenzuron; and the chemical agent is emamectin benzoate or indoxacarb. The compound agent has obvious synergistic effect on preventing and treating termites, reduces the use amount of single agent, is lower in cost, more efficient, stable and green.

The invention discloses a method for determining residual quantity of picoxystrobin, flufenoxuron, fenazaquin and buprofezin in tea, the determination method is a gas chromatography-tandem mass spectrometry method, and the method comprises the following steps: (1) preparing a standard stock solution and a standard working solution; (2) preparing a sample to be detected; (3) setting gas chromatography-tandem mass spectrometry analysis conditions; (4) drawing a standard curve; and (5) calculating a result. The invention establishes a method for determining the residual quantity of picoxystrobin, flufenoxuron, fenazaquin and buprofezin in tea leaves by using gas chromatography-tandem mass spectrometry. The method fills up the blank that the prior art cannot simultaneously detect the items of picoxystrobin, flufenoxuron, fenazaquin and buprofezin, has the characteristics of good selectivity, high sensitivity, strong background interference resistance and the like, and is suitable for daily detection of residual quantity of picoxystrobin, flufenoxuron, fenazaquin and buprofezin in tea.

The invention discloses preparation of two nano-pesticides and application of the nano-pesticides to control of rice whiteflies, graphene oxide or mesoporous silica is used as a nano-carrier to load the pesticides to prepare the two nano-pesticides, namely imidacloprid-graphene oxide and afidopyropen-mesoporous silica, and the LC50 of the nano-pesticides to the rice whiteflies reaches 5.711 mg / L and 1.351 mg / L respectively, and the LC50 of the nano-pesticides to the rice whiteflies reaches 5.711 mg / L and 1.351 mg / L respectively. And compared with the original medicine, the insecticidal activity is obviously improved. The imidacloprid-graphene oxide and the afidopyropen-mesoporous silica have good slow release property, wettability, thermal stability and safety, have high biological activity and control efficiency on the rice whiteflies, and realize efficient delivery and target pertinence of the insecticide in the rice whiteflies. A new thought is provided for efficient prevention and control of rice whiteflies, and the developed nano pesticide can achieve the purposes of pesticide reduction and synergism, can also reduce environmental pollution and has a relatively high application prospect.

The invention belongs to the field of organic synthesis methods, and discloses an azo / deuterated imidazo buprofezin compound as well as a synthesis method and application thereof. According to the method, at the room temperature, aryl diazonium tetrafluoroborate or deuterium water, acryloyl chloride and 2-mercapto benzimidazole or 2-mercapto imidazole compounds are used as raw materials, and the azo / deuterated imidazo buprofezin compounds with medical application prospects are synthesized in the air atmosphere in the presence of alkali. Compared with a previously reported preparation method, the method has the advantages of being green, environmentally friendly, safe, efficient and energy-saving, the substrate application range is wide, the product functional group compatibility is good, raw materials are easy to obtain, operation is easy and convenient, and potential industrial application prospects are achieved.

The invention provides a pesticide composition for preventing and treating Chinese chive maggots, and belongs to the field of pesticides. The effective components of the pesticide composition comprise chlorfluazuron and chlorfenapyr, the weight ratio of chlorfluazuron to chlorfenapyr is (1: 12)-(10: 3); the chlorfenapyr is subjected to double-layer coating with chitosan and tannic acid, the tannic acid is an inner coating layer, and the chitosan is an outer coating layer; the chlorfluazuron adopts fucoidan-polylactic acid double-layer coating, polylactic acid is an inner coating layer, and fucoidan is an outer coating layer. The pesticide composition disclosed by the invention takes chlorfluazuron and chlorfenapyr as effective components, the chlorfluazuron and chlorfenapyr show a remarkable synergistic effect in a specific proportion, and compared with a single agent, the pesticide composition has the advantages that the control effect on Chinese chive maggots is effectively improved, so that the dosage and the medication frequency of the pesticide are reduced, and the adverse influence of the pesticide on the ecological environment is reduced. Besides, the chlorfluazuron and the chlorfenapyr are both coated by specific double layers, so that the persistence of the chlorfluazuron and the chlorfenapyr is improved, and the stability and the targeted delivery effect of the chlorfluazuron and the chlorfenapyr are enhanced under the condition that the pesticide effect is not reduced.

The invention relates to an insecticidal composition containing diazinon and buprofezin, which is characterized in that the insecticidal composition comprises active components, and the active components comprise diazinon and buprofezin; the mass ratio of the diazinon to the buprofezin is (1-10): (10-1); the dosage form of the insecticidal composition is selected from one or more of missible oil, a dispersible oil suspending agent, an emulsion in water, a microemulsion, a suspoemulsion, a microcapsule suspension-suspending agent and water dispersible granules. Each dosage form has the advantages that the storage stability is improved, the lasting period is prolonged (permeability is enhanced by an oil-phase medium), the cost advantage (water replaces a solvent) is realized, and the compatibility is high (the composition can be compounded with other pesticides).

The present invention relates to novel applications of thiazolinone as a fungal and oomycete chitin synthase inhibitor and its sterilization application. In vitro enzyme activity inhibition tests and sterilization tests demonstrate that thiazolinone can significantly inhibit the activity of fungal and oomycete chitin synthases, inhibit fungal spore production and hyphal growth, and inhibit the production and infection toxicity of oomycete sporangia. The invention can be used as a sterilant for the prevention and treatment of fungal and oomycete diseases.

The present application relates to a synergistic composition containing a biologically effective amount of compound A and component B, wherein the component B is one of thiazide ketone, avermectin, spirotetramat, pyridalyl, emamectin benzoate, azamethiphos, azocyclotin, pyridaben, quimacryd thiocyl, pyrimidifen, tebufenpyrad, flufenoxuron, chlorfenapyr, cyromazine, and halofenozide, and a method thereof for controlling pests in agronomic and non-agronomic environments. The compound A has a synergistic effect with the component B, which can improve the pest control effect, reduce the application amount, reduce the use frequency, and reduce the use cost.

The invention belongs to the technical field of insect genes, and particularly relates to a brown planthopper transcription factor CEBP and application thereof. According to the invention, a promoter sequence at the upstream of a brown planthopper membrane-bound trehalase gene NlTRE2 gene segment is cloned from brown planthopper, a transcription factor CEBP is predicted and verified to promote the expression of a trehalase gene promoter, and RNAi interference is utilized to prove that CEBP enables the trehalase gene NlTRE2 gene segment to have low expression; therefore, the sensitivity of the brown planthopper to buprofezin medicines is improved. The invention provides a new method for enhancing the sensitivity of brown planthopper to buprofezin drugs, and lays a foundation for understanding the relationship between energy metabolism and drug resistance of brown planthopper and for high-efficiency and low-toxicity anti-brown planthopper drugs of brown planthopper.

The invention relates to the technical field of pesticides, and discloses application of a cyantraniliprole suspending agent to tomato bemisia tabaci. 1000 parts by weight of the suspending agent comprises the following raw materials: 200-600 parts by weight of an effective active component, 5-100 parts by weight of a dispersing agent, 3-60 parts by weight of a wetting agent, 5-100 parts by weight of a biological synergist, 2-25 parts by weight of a thickening agent, 0.5-15 parts by weight of a defoaming agent, 1-20 parts by weight of a preservative, 10-80 parts by weight of an antifreeze agent and the balance of water. The effective active components are buprofezin and cyantraniliprole, and the weight ratio of buprofezin to cyantraniliprole is 9: 1. The suspending agent can effectively prevent and control tomato bemisia tabaci, effectively solves the problems of poor permeability and poor dispersibility of pesticides, can improve deposition adhesion and permeation of the pesticides on leaf surfaces, improves the utilization rate of the pesticides, reduces residues, and can solve the technical problem of pesticide spots caused by use of solvents.

The invention belongs to the technical field of insect genes, and particularly relates to a transcription factor of a brown planthopper trehalase gene and application of the transcription factor. According to the invention, a soluble trehalase NlTRE1-1 gene promoter sequence is cloned from brown planthopper, an active fragment is analyzed through dual luciferase, and an efficient transcription factor Adf-1 combined with the active fragment is obtained. Furthermore, the invention designs and synthesizes an RNAi fragment combined with Adf-1, and finds that silence of Adf-1 can influence the expression of NlTRE1-1 and influence the sensitivity of brown planthopper to buprofezin drugs. The invention lays a foundation for deeper understanding of the relationship between energy metabolism and drug resistance of brown planthopper, and can be used for development of anti-brown planthopper drugs.

The present application provides a pesticide composition for leek maggot control, belonging to the field of pesticides. The effective components of the pesticide composition include chlorfluazuron and buprofezin; according to the weight ratio, chlorfluazuron:buprofezin=(1:12)~(10:3); buprofezin is coated with chitosan-tannic acid double layer, tannic acid is the inner coating layer, and chitosan is the outer coating layer; chlorfluazuron is coated with fucoidan-polylactic acid double layer, polylactic acid is the inner coating layer, and fucoidan is the outer coating layer. The pesticide composition of the present application takes chlorfluazuron and buprofezin as the effective components, and in a specific ratio, the two components show significant synergistic effect, compared with single agent, the control effect on leek maggot is effectively improved, and then the dose and the number of pesticide application are reduced, and the adverse effects of pesticides on the ecological environment are reduced. In addition, chlorfluazuron and buprofezin are both coated with specific double layer, which improves the persistence, enhances the stability and target delivery effect without reducing the efficacy.

The invention belongs to the technical field of agricultural insecticide, and discloses an insecticide composition and application thereof.The insecticide composition comprises an active ingredient A and an active ingredient B. The active ingredient A is a compound shown in the formula I. The structure of the compound shown in the formula I. The active ingredient B is flonicamid or buprofezin. The mass ratio of the active component A to the active component B is (1: 55)-(45: 1). The insecticidal composition or the preparation thereof provided by the invention has a synergistic effect on target pests, reduces the use amount of pesticides, and is safe to crops and non-target organisms.