CN102613235B - Suspending agent of lufenuron and difenoconazole - Google Patents

Abstract

The invention relates to an agricultural insecticidal composition, in particular to an insecticidal sterilizing composition consisting of lufenuron and difenoconazole, which adopts organic silicon as a synergistic agent. A suspending agent of the lufenuron and difenoconazole comprises following raw materials by weight percent: 15 percent of lufenuron, 10 percent of difenoconazole, 5 percent of organic silicon, 3 percent of ethylene oxide-propylene oxide (EO-PO) segmented surface active agent, 6 percent of sodium sulfosuccinate alkylphenol polyoxyethylene ether, 6 percent of fatty alcohol-polyoxyethylene ether, 8 percent of diatomite, 2 percent of sodium sulfate, 3 percent of dextrin and balance of water, and all raw materials are placed into a mixing kettle to be mixed according to a conventional method for preparing the suspending agent, and then the mixture enters a primary colloidal mill procedure and a secondary colloidal mill procedure to prepare the suspending agent with 15 percent of lufenuron and 10 percent of difenoconazole. The insecticidal sterilizing composition consisting of the lufenuron and the difenoconazole belongs to a novel farm chemical with low toxicity, high efficiency and low residue. By compounding the lufenuron and the difenoconazole, an action on improving the toxicity of crops and controlling both diseases and insect pests can be realized. Not only can a control range be enlarged, but also the application times of farm chemicals can be reduced, and the labor efficiency can be improved.

Description

The suspending agent of lufenuron and Difenoconazole

Present patent application is dividing an application of application for a patent for invention (application number: 200810163724.2 applyings date: 2008-12-31, invention and created name: containing the insecticidal and bactericidal composition of lufenuron and Difenoconazole and organosilicon synergist).

Technical field

The present invention relates to a kind of agricultural insecticidal composite, relate in particular to the insecticidal and bactericidal composition containing lufenuron and Difenoconazole composition, and comprise that organosilicon coordinates and adds as synergist.

Background technology

At present, the mankind pay much attention to environmental problem, and then have higher requirement on the toxicity of agricultural chemicals and on the impact of environment, and high malicious organophosphorous pesticide is due to toxicity and environmental problem and be eliminated gradually.Research and develop in recent decades many medicaments new and effective, low toxicity and replaced high malicious organophosphorous pesticide.China's pesticide species and formulation are a lot, and some has caused severe contamination harm to ecotope, and pesticide efficacy is low, and the residue of pesticide time is long, have not easy-clear, to defects such as the physical and mental health of numerous people have a certain impact.

Therefore, exploitation low toxicity, efficient, environment amenable novel pesticide is very urgent for the life requirement of agricultural production instantly and numerous people.

Summary of the invention

The shortcomings such as the technical problem to be solved in the present invention is that prior art cost is high, control efficiency is single in order to overcome, easily produce resistance, usage amount is large, provide a kind of use cost low, long to human body, environmental friendliness, lasting period, be difficult for producing resistance and improved again the lufenuron of effective ingredient availability and the insecticidal and bactericidal composition of Difenoconazole and organosilicon synergist simultaneously.

The present invention solves the problems of the technologies described above by following technical proposals: containing the insecticidal and bactericidal composition of lufenuron and Difenoconazole and organosilicon synergist, it comprises lufenuron, Difenoconazole, organosilicon synergist and other auxiliary agent, excipient etc., and wherein each component accounts for the percentage of gross weight and is:

Lufenuron accounts for 0.1%～30%

Difenoconazole accounts for 0.5～50%

Organosilicon accounts for 0.1%～20%

Auxiliary agent accounts for 10%～50%

Excipient accounts for 5%～50%.

As preferably, described organosilicon refers to containing the organic silicon surfactant of trisiloxanes or modification trisiloxanes structure, comprises single organosilicon, or two kinds and above organic silicon compound or organosilicon and other auxiliary agent is composite.

As preferably, described auxiliary agent is to comprise alkylphenol polyoxyethylene (OP-9-15), Ben-zylphenol Polyoxyethyl Ether, polyoxyethylene nonylphenol ether phosphate (NPEP04), alkylphenol polyoxyethylene sulfosuccinate disodium (2020), soil temperature 20-24 (T-20-24), EO-PO block type surfactant (EPE), castor oil polyoxyethylene ether (EC-90-100), styrene phenol formaldehyde resin APEO (rather breast), diphenyl biphenyl aldehyde APEO (agriculture breast), cinnamic aldehydes phenol APEO (603#), one or more in fatty alcohol-polyoxyethylene ether (A-105). or the phosphate of these compounds, alkyl benzene sulphonate sodium salt or alkyl benzene sulfonate calcium salt, lignosulfonates, alkylnaphthalene sulfonate, methyl naphthalene sulfonic acid salt, naphthalene sulfonic acid-formaldehyde condensation product, lauryl sodium sulfate, pull open powder, JFC, the withered powder of tea, polymerization of carboxylic acid sodium and directly commercially available emulsifier monomer or composite product, such as: agriculture breast 500# series, 600# series, 1600# series, NP series OP series, AEO series, composite 2201, 0203B, 2021B, 4103.

As preferably, described excipient is one or more that comprise in dimethylbenzene, propane diols, toluene, solvent naphtha, ethanol, DMF, DMSO, methyl naphthalene, ethyl acetate, diatomite, kaolin, bentonite, quartz sand, calcium carbonate, potter's clay, White Carbon black, water, glauber salt, starch, CMC, soybean protein, gypsum, paraffin, urea, xanthans, dextrin etc.

As preferably, preparation formulation can be missible oil, wetting powder, water dispersible granules, suspending agent or seed coat agent.

Lufenuron (Lufenuron), chemical name: RS)-1-[2, the chloro-4-(1 of 5-bis-, 1,2,3,3,3-hexafluoro propoxyl group) phenyl]-3-(2,6-difluoro benzoyl) urea.The exploitation of Shi You Switzerland Syngenta Co.,Ltd, CAS:103055-07-8, wherein 5% missible oil commodity U.S.A by name removes.

Lufenuron belongs to benzoyl area kind and kills mite, insecticide, and a kind of insect growth regulator, IGR is chitin synthesis inhibitor.Be mainly used in preventing and treating noctuid, cotton bollworm, lima bean pod borer, thrips, rust mite, leaf miner, plant hopper, leafhopper etc.There is stomach toxicity, action of contace poison, there is unique insecticidal mechanism: suppress insect decortication, desinsection, ovicidal are effective, are characterized in: 1. low toxicity, is applicable to Agricultural product without pollution; 2. all effective to worm's ovum, big or small instar, the lasting period reaches 14 days; 3. permeability is strong, positive spray medicine, the dead worm in the back side, dead ovum; 4. resistance of rainwater washing against, spraying the latter 15 minutes rainy drug effects that do not affect.

In China, because lufenuron import price is high, usable floor area is confined on Vegetable and fruit tree that economic value added is high, application area is less, can not in crop pests control, use more widely, and the lufenuron less control of insect being applied on the field crops such as paddy rice, wheat of document at home and abroad.

Difenoconazole (difenoconazole), chemical name:: suitable, the chloro-4-[4-methyl-2-(1H-1 of trans-3-, 2,4-triazol-1-yl methyl)-1,3-dioxolane-2-yl] phenyl 4-chlorphenyl ether.This kind is developed by Switzerland Syngenta Co.,Ltd.CAS：119446-68-3。

Difenoconazole belongs to systemic fungicide, tool protection and therapeutic action.Suppress sterol demethylation.Fungicidal spectrum is wide, and leaf surface treatment or seed treatment can improve output and the guaranteed quality of crop.To Ascomycetes, Basidiomycetes and comprise Alternaria, Ascochyta, the mould genus of tail spore, Colletotrichum, ball Cuo Pseudomonas, Phoma, Ramularia, Septoria, Venturia partly know disease, Erysiphaceae, Uredinales and some Seedborne pathogen have lasting protection and therapeutic action.

The insecticidal and bactericidal composition that lufenuron and Difenoconazole form, all belongs to the novel agrochemical of low toxicity, efficient, low-residual, and both composite uses, can play raising virulence for crop, the double effect of killing of sick worm.Can expanding prevention scope, can reduce spraying times again, raise labour efficiency.

Adopt the invention of the technical program, its beneficial effect is:

Insecticidal and bactericidal composition of the present invention compared with prior art, produces following beneficial effect: (1) compare with single dose, said composition has obviously improved control efficiency to crop, and a medicine is multiplex, and a dispenser is insect in anti-Zhiduo County simultaneously, reduces control recruitment cost; (2) high-toxic pesticide be can replace, and environmental pollution and residue of pesticide significantly reduced; (3) have concurrently quick-acting and long-acting; (4) compare with Difenoconazole single dose with lufenuron, produce and use cost reduction.

Embodiment

Embodiment 1:

Take lufenuron 5%, Difenoconazole 10%, organosilicon 3%, fatty alcohol-polyoxyethylene ether 8%, agriculture breast 500#6%, solvent naphtha surplus supplies 100%, and above raw material, according to the method for normal compound missible oil, is dropped into mixing kettle and mixes.

Make 5% lufenuron, 10% Difenoconazole missible oil.

Embodiment 2:

Take lufenuron 1%, Difenoconazole 40%, organosilicon 0.5%, naphthalene sulfonic acid-formaldehyde condensation product 10%, styrene phenol formaldehyde resin APEO 3%, White Carbon black 10%, kaolin surplus supplies 100%, above raw material, according to the method for normal compound wetting powder, is dropped into mixing kettle and mixes, then carry out air-flow crushing operation.

Make 1% lufenuron, 40% Difenoconazole wetting powder.

Embodiment 3:

Take lufenuron 20%, Difenoconazole 1%, organosilicon 20%,

Castor oil polyoxyethylene ether 1%, styrene phenol formaldehyde resin APEO 10%, Ben-zylphenol Polyoxyethyl Ether 5%, White Carbon black 10%, glauber salt 2%, CMC 1.5%, potter's clay surplus supplies 100%, and above raw material, according to the method for normal compound water dispersible granules, is dropped into mixing kettle and mixes, then carry out air-flow crushing operation, finally carry out granulation, baking operation.

Make 20% lufenuron, 1% difenoconazole water dispersible granule.

Embodiment 4:

Take lufenuron 15%, Difenoconazole 10%, organosilicon 5%, EO-PO block type surfactant 3%, alkylphenol polyoxyethylene sulfosuccinate disodium 6%, fatty alcohol-polyoxyethylene ether 6%, diatomite 8%, glauber salt 2%, dextrin 3%, water surplus supplies 100%, by above raw material according to the method for normal compound suspending agent, input mixing kettle mixes, and then carries out one colloid mill, two road sand milling operations.

Make 15% lufenuron, 10% difenoconazole suspending agent.

Embodiment 5:

Take lufenuron 0.5%, Difenoconazole 1%, organosilicon 2%, EO-PO block type surfactant 4%, polyoxyethylene nonylphenol ether phosphate 6%, diatomite 5%, glauber salt 1%, dextrin 2%, water surplus supplies 100%, above raw material, according to the method for normal compound seed coat agent, is dropped into mixing kettle and mixes, then carry out one colloid mill, two road sand milling operations.

Make 0.5% lufenuron, 1% Difenoconazole seed coat agent.

Implementation result 1

The mensuration of 5% lufenuron, 10% Difenoconazole insecticides co-toxicity coefficient:

1. diamond-back moth 3 instar larvaes of interior artificial feeding are examination worm, adopt Turnip Sprouts spraying to raise worm method, and the virulence equation that records lufenuron missible oil is Y=4.6775+1.0795X(R=0.9980), LC50=201.2mg/L; The virulence equation of lufenuron, Difenoconazole missible oil is Y=5.0568+1.3608X(R=0.9803), LC50=91.02mg/L; , synergic ratio is 2.21, effect is remarkable.

2. white powdery mildew is for supplying examination bacterial classification, and the virulence equation that adopts inhibition mycelial growth rate method to record Difenoconazole missible oil is Y=1.0870+3.9130X(R=0.9961), EC50=35.94mg/L; The virulence equation of lufenuron, Difenoconazole missible oil is Y=0.089+3.2690X(R=0.9969), EC50=31.79mg/L; , illustrate that lufenuron p-phenylene methyl cyclic-azole does not have a significant effect.

Implementation result 2

5% lufenuron, the field control effectiveness test of 10% Difenoconazole insecticides to aleyrodid:

Within 2007, in Deqing, Zhejiang, carry out the rice field test of pesticide effectiveness, now paddy rice is the cut phase, and 5% lufenuron, 1000 times of spraying controls of 10% Difenoconazole missible oil dilution, re-used once after 7 days.After spraying, three of rice leaf roller control efficiency are repeated to average out to 92% for the second time, and three of rice sheath blight disease controlling effects are repeated to average out to 89.2%.

The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (2)

1. the suspending agent of lufenuron and Difenoconazole, it is characterized in that: this suspending agent is by weight by lufenuron 15% Difenoconazole 10%, organosilicon 5%, EO-PO block type surfactant 3%, alkylphenol polyoxyethylene sulfosuccinate disodium 6%, fatty alcohol-polyoxyethylene ether 6%, diatomite 8%, glauber salt 2%, dextrin 3%, water surplus is supplied 100% composition, and described organosilicon is the organic silicon surfactant containing trisiloxanes or modification trisiloxanes structure; The preparation method of above-mentioned suspending agent is as follows: described raw material, according to the method for normal compound suspending agent, is dropped into mixing kettle and mixes, then carry out one colloid mill, two road sand milling operations, make 15% lufenuron, 10% difenoconazole suspending agent; Described organosilicon refers to the organic silicon surfactant containing trisiloxanes or modification trisiloxanes structure.

2. a preparation method who prepares the suspending agent of lufenuron claimed in claim 1 and Difenoconazole, it is characterized in that: by described raw material according to the method for normal compound suspending agent, input mixing kettle mixes, then carry out one colloid mill, two road sand milling operations, make 15% lufenuron, 10% difenoconazole suspending agent; Described organosilicon refers to the organic silicon surfactant containing trisiloxanes or modification trisiloxanes structure.