157 results about "Fenpropathrin" patented technology

The invention discloses a method for simultaneously measuring multiple residues of organic chloride and pyrethroid pesticides. The method comprises the following working procedures: crushing a tobacco sample until grain diameters are less than 450 mu m; adding 10 to 20ml of extracting solution and internal standard solution into every program of tobacco sample; extracting the mixed solution by using ultrasonic wave; filtering the mixed solution by using a funnel filled with anhydrous sodium sulfate to obtain the extracting solution; adding the extracting solution into a Florisil solid extraction column for extracting and eluting; collecting an eluent; analyzing the eluent by using a gas chromatograph, wherein the analysis comprises the following conditions: adopting an Elite 5MS capillary column, high-purity N2 as a carrier gas, a constant flow mode in which the flow rate is 0.5 to 1.5 ml/min, a sample inlet temperature of between 280 and 320 DEG C, a detector temperature of between 330 and 370 DEG C, splitless sampling in which the sampling volume is between 1 and 2 mu L, and an initial temperature of 100 DEG C which rises from 100 to 180 DEG C at a speed of 8 DEG C/min, is kept for 4 minutes, rises from 180 to 270 DEG C at the speed of 5 DEG C/min and is kept for 15 minutes until all sample flows out completely; and determining the nature of the sample by using the retaining time of a standard sample and quantifying by using an internal standard method. In the method, ultrasonic wave is adopted for extracting and a solid extraction column is adopted for purifying, so that the method has the advantages of operating step simplification, high work efficiency, good purification effect, capability of simultaneously measuring multiple residues of 25 kinds of pesticides including 17 organic chloride pesticides of hexachlorocyclohexane, DDT and the like, seven pyrethroid pesticides such as fenpropathrin and the like, and one plant growth regulator.

The invention relates to a pesticide combination, which is characterized by comprising the active ingredients including tolfenpyrad (A) and a pyrethroid insecticide (B) which can be beta-cypermethrin,cypermethrin, beta-cyfluthrin, lambda-cyhalothrin, bifenthrin, fenpropathrin or deltamethrin. The mass ratio of A and B in the pesticide combination is 100:1 to 1:100. The pesticide combination of the invention is suitable for controlling various common pests and mites in agriculture.

The invention relates to an agricultural composition; and the effective ingredient of the agricultural composition comprises a component A and a component B in a mass ratio of 50:1 to 1:100. The component A is tebufenpyrad, and the component B is pyrethrins pesticide which is fenpropathrin, bifenthrin, high-efficiency cyfluthrin, or high-efficiency lambda-cyhalothrin. The composition has the synergy and is used for preventing mites on plants.

The invention discloses an insecticidal composition comprising spirotetramat and pyrethroid. The composition is mainly characterized in comprising an active component A, an active component B, and balance of auxiliary agents. The active component A is spirotetramat, and the active component B is any one of permethrin, lambda-cyhalothrin, fenvalerate, beta-cyfluthrin, deltamethrin, and fenpropathrin. A weight ratio of the active component A to the active component B is 60:1-1:60. The composition can be prepared into wettable powders, water-dispersible granules, suspensions, suspension emulsions, water emulsions, micro-emulsions, microcapsule suspensions, and microcapsule-microcapsule suspensions. The composition provided by the invention can control various pests, and has substantial synergetic effect and sustained-release effect. The composition is safe to human and animals, and has the advantages of no phytotoxicity and good environmental compatibility. The preparation has the advantages of enhanced adhesion, rain erosion resistance, long duration, and the like.

The invention provides application of a microbe strain-Enterobacter aerogenes capable of degrading various pyrethroid pesticides simultaneously to the degrading of pyrethroid pesticide residue, and a preparation for degrading the pyrethroid pesticide residue prepared by the strain. An efficient degrading strain is obtained through screening to simultaneously degrade three pyrethroid pesticide residues, namely bifenthrin, fenpropathrin and cypermethrin, and is analyzed and researched in degrading characteristic, so as to disclose the basic rule of the strain for degrading the pesticide and provide scientific basis for controlling pyrethroid pesticide residue.

The invention discloses hybridoma cell strain No. 15, and pyrethroid-resistant mass selection monoclonal antibody produced by the hybridoma cell strain No. 15, and belongs to the field of immunochemical technology.<{EN3}>The monoclonal antibody secreted by the cell strain is detected by indirect competition euzymelinked immunosorbent assay, and is capable of realizing cross reaction with monoclonal antibodies of 10 kinds of pyrethroids including fenpropathrin, cypermethrin, beta-cypermethrin, cyfluthrin, lambda-cyhalothrin, fenvalerate, deltamethrin, fluvalinate, cyphenothrin and alphamethrin; IC50 ranges from 3.2 to 50ng/ml; the pyrethroid-resistant mass selection monoclonal antibody produced by the hybridoma cell strain No. 15 can be used for development of colloidal gold immunochromatography test strips and immunosensors, is capable of providing raw materials for immunodetection of pyrethroid residue in agricultural products, and possesses practical application value. The monoclonal antibody secreted by the cell strain is detected by indirect competition euzymelinked immunosorbent assay, and is capable of realizing cross reaction with monoclonal antibodies of 10 kinds of pyrethroids including fenpropathrin, cypermethrin, beta-cypermethrin, cyfluthrin, lambda-cyhalothrin, fenvalerate, deltamethrin, fluvalinate, cyphenothrin and alphamethrin; IC50 ranges from 3.2 to 50ng/ml; the pyrethroid-resistant mass selection monoclonal antibody produced by the hybridoma cell strain No. 15 can be used for development of colloidal gold immunochromatography test strips and immunosensors, is capable of providing raw materials for immunodetection of pyrethroid residue in agricultural products, and possesses practical application value.

The invention discloses a preparation method of a glucosyl modified quantum dot fluorescent probe. The preparation method comprises: adopting D-glucose as a raw material, carrying out hydroxyl complete protection and terminal glycosylation, adding a N,N-dimethylformamide solution and potassium thioacetate to catalyze, removing the protection group through sodium methoxide/methanol to obtain mercapto derivatized glucose, and modifying the mercapto derivatized glucose on the surface of quantum dots through ligand exchange to obtain the glucosyl modified quantum dot fluorescent probe. According to the present invention, the prepared glucosyl modified quantum dot fluorescent probe is used for detecting the pesticide fenpropathrin content; and the glucosyl modified quantum dot fluorescent probe has the specific recognition ability of sugar and the special properties of quantum dots, and further has advantages of good water solubility and long stabilization time, and the preparation method has advantages of short synthesis route of the glucosyl modified body, simple synthesis operation, simple preparation method of the modified quantum dots, and rapid preparation.

The invention discloses a cultivation method of dictyophora rubrovalvata. The method comprises the following steps: turning over a cultivation land, ridging on the soil after being turned over, and digging cultivation ditches on ridges; using avermectin 150-220 mL, dichlorvos 1800-2200 mL, phoxim 1900-2400 mL, fenpropathrin 165-230 mL and a mushroom protecting agent 80-120 g to disinfect the cultivated soil; constructing a greenhouse; uniformly stirring and mixing raw materials containing sawdust, bamboo sawdust, bagasse, wheat bran, calcium superphosphate, calcium carbonate and magnesium sulfate and performing a high-temperature sterilization on the mixed raw materials, taking bamboos, breaking bamboos into two halves and putting broken bamboos into the cultivation ditches; sterilizing the inside of the greenhouse and inoculating the raw materials under a sterile condition; and starting a spraying system every 2-3 days to spray water on dictyophora rubrovalvata. According to the cultivation method of dictyophora rubrovalvata, the soil of the cultivation land is effectively disinfected, the occurrence of dictyophora rubrovalvata egg rot diseases is relatively well avoided and the yield of dictyophora rubrovalvata is improved.

The invention discloses a pesticidal composition, which is mainly characterized in that: it contains an active ingredient A and an active ingredient B, wherein the active ingredient A is diflovidazin, the active ingredient B is any one of abamectin, etoxazole and fenpropathrin, and the active ingredient A and the active ingredient B are in a weight ratio of 1:80-80:1. The composition can be prepared into wettable powder, water dispersible granules, a suspension, a suspension emulsion, an emulsion in water, a microemulsion, a microcapsule suspending agent, and a microcapsule suspension-suspension agent. The composition provided in the invention can be used to control a variety of pests on rice, wheat, cotton, fruit trees, vegetables and tea trees, has an obvious synergistic effect, reduces the dosage of pesticides, is safe to human and livestock, has no phytotoxicity, and has good environment compatibility. With strong adhesion, the preparation is rainwash resistant.

The invention discloses a composite insecticidal and acaricidal nano aqueous agent containing fenpropathrin and lambda-cyhalothrin, wherein the composite insecticidal and acaricidal nano aqueous agentis prepared from active ingredients of fenpropathrin and lambda-cyhalothrin, a surfactant and water, the weight percentage content of the fenpropathrin and the lambda-cyhalothrin is 3-80%, the weightpercentage content of a pesticide adjuvant is 5-20%, the balance is water, and a weight ratio of fenpropathrin to lambda-cyhalothrin is (20:1)-(1:20). The insecticidal composition can generate high synergistic effect, overcomes and delays the drug resistance of pests, is high in insecticidal speed and long in lasting period, reduces the medication cost, has obviously high prevention and control effect compared with a single agent, can prevent and control lepidoptera pests on crops, especially can be used for preventing and controlling helicoverpa armigera and tetranychus cinnabarinus, and hassignificantly high effect compared with the use of a single agent.

The invention belongs to the technical field of devices for eliminating harmful animals or harmful plants and discloses a rapid field detection kit for sensitivity of tetranychidae type tiny pests anda use method. 4-hour sensitive baseline (LC-P line) of a tetranychus cinnabarinus sensitive strain to fenpropathrin and cyflumetofen is obtained through bioassay with an indoor drug membrane method,the diagnostic dose (LC99) is obtained through calculation. The FRC (field recommendation concentration) of two miticides is searched; two agents are prepared, and diagnostic drug bottles with three concentrations including LC99, 2*LC99 and FRC are made for each agent; about 30 tetranychus cinnabarinus is picked, and the death rate condition is detected after 4 hours. Four tetranychus cinnabarinuspopulations are fed in an outdoor net house, each population is treated with the field recommendation dose, and field control effects are investigated after the agents are applied for 1 d, 10 d and 15 d. The kit agent use concentration is determined and detected according to the correlation between the diagnostic death rate in the drug bottles and the field control effects, and kit manufacture iscompleted.

A disclosed high-efficiency pesticide composition is a pesticide composition comprising an active component A and an active component B, wherein the active component A is selected from fluacrypyrim, the active component B is any one compound selected from azocyclotin, bifenazate, fenbutation oxide and fenpropathrin, and the weight ratio of the active component A to the active component B is 1:80-60:1. The pesticide composition is capable of controlling multiple insects, and has obvious synergy effect; and the pesticide composition helps to expand insecticidal spectrum, reduce pesticide consumption, reduce residual quantity of the pesticide in the crops and mitigate environmental pollution.