CN104585230A - Nematicidal composition containing fosthiazate and fluopyram - Google Patents
Nematicidal composition containing fosthiazate and fluopyram Download PDFInfo
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- CN104585230A CN104585230A CN201410838829.9A CN201410838829A CN104585230A CN 104585230 A CN104585230 A CN 104585230A CN 201410838829 A CN201410838829 A CN 201410838829A CN 104585230 A CN104585230 A CN 104585230A
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- fosthiazate
- nematicidal composition
- acid amides
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- fluorine pyrrole
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Abstract
The invention relates to a nematicidal composition containing fosthiazate and fluopyram. The nematicidal composition comprises the following effective components fosthiazate and fluopyram in binary combination at the weight ratio of (1-25) to (25-1); the ratio of the effective components fluxapyroxad and prothioconazole in the preparation in parts by weight is 1%-80%; and the balance is allowed and acceptable auxiliary components in the pesticide. The dosage forms of the nematicidal composition are missible oil, a suspending agent, wettable powder, water aqua, a water dispersible granule, an emulsion in water, a microemulsion, a granule and a microcapsule; and the nematicidal composition is mainly used for preventing and treating diseases such as nematodes of solanaceous vegetables, cucurbitaceous vegetables, lettuce and leaf vegetables.
Description
Technical field
The present invention relates to technical field of pesticide combination, particularly relate to a kind of nematicidal composition containing fosthiazate and fluorine pyrrole bacterium acid amides.
Background technology
Nematode belongs to Nemathelminthes Nematoda, and the bodily form is small, can observe under the microscope.To the nematode about 3000 kinds of plant pest, mostly live in soil, what also have colonizes in plant corpus.Nematode by soil or seed dispersal, can destroy the root system of plant, or the organ of upper part intrusively, affects growing of crops, also indirectly propagates the disease caused by other microorganisms, cause very large economic loss.Use chemical control nematode to be the effective ways that modern agriculture generally adopts, be generally used for soil treatment or seed treatment, nematocide has volatility and non-volatile two classes, and the former plays fumigation action, and the latter plays action of contace poison.Generally should have good lipophilicity and environmental stability, can with liquid or gaseous state diffusion in soil, toxic action from nematode epidermal penetrates.Most nematocide has comparatively high toxicity to people and animals, and some kind has poisoning to crop.
Fosthiazate (fosthiazate) is organic phosphates nematocide, and main effect model is the synthesis suppressing root-knot nematode acetylcholinesterase, can be used for preventing and treating all kinds of root-knot nematode, aphid etc.Vegetables can be widely used in, banana, fruit tree, the crops such as medicinal material.
Fluorine pyrrole bacterium acid amides (the chloro-5-(trifluoromethyl of fluopyram, No. CAS: 658066-35-4 chemical name: N-{2-(3-)-2-pyridine radicals) ethyl-
-three fluoro-O-toluamides } be a kind of new benzamides series bactericidal agent, suppress mitochondrial respiratory by hindering the electro transfer of succinate dehydrogenase in respiratory chain.Be mainly used in broad leaf crop being prevented and treated the microbial disease of capsule.To the downy mildew on the vegetables such as cucumber, custard squash, powdery mildew, the downy mildew of fruit tree etc. cause multiple diseases to have favorable effect by germ.
Composite or the mixture of rational chemicals has expansion insecticidal spectrum, improve control efficiency, extend the optimum period for applying fertilizer, reduce dosage, reduce poisoning, minimizing remains, delay pest resistance and the actively feature such as drug-fast generation and development, pesticide compositional or mixture are one of the effective methods the most solved the problem.We on the basis of lab screening and field trial, filter out fosthiazate and fluorine pyrrole bacterium acid amides carries out composite, have obvious synergistic effect, and about fosthiazate and fluorine pyrrole bacterium acid amides composite nematicidal composition and apply and there is no people at present and reported.
Summary of the invention
Based on above situation, the object of the invention is to provide a kind of new and effective agricultural chemicals nematicidal composition.Be mainly used in preventing and treating solanaceous vegetable, cucurbitaceae vegetable, the insect pests such as the nematode of romaine lettuce and other leaf vegetables.
Technical scheme of the present invention is realized by following measures:
Contain a nematicidal composition for fosthiazate and fluorine pyrrole bacterium acid amides, active ingredient fosthiazate and the fluorine pyrrole bacterium acid amides two yuan of this nematicidal composition are composite, and all the other are auxiliary element.In wherein said nematicidal composition, the mass ratio of active ingredient fosthiazate and fluorine pyrrole bacterium acid amides is 1 ~ 25: 25 ~ 1, described nematicidal composition of the present invention is through toxicity test experimental verification, when the mass ratio of fosthiazate and fluorine pyrrole bacterium acid amides is 1 ~ 10: 10 ~ 1, synergistic effect is better.
The formulations of pesticide that described nematicidal composition of the present invention can be prepared are missible oil, suspending agent, wetting powder, aqua, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations.Wherein active ingredient fosthiazate and fluorine pyrrole bacterium acid amides gross mass in the formulation account for 1% ~ 80% of the whole quality of the pharmaceutical preparations, and when wherein accounting for 10% ~ 60%, toxicity reaches good balance with residual, and cost is also lower.
The specific embodiments of the formulations of pesticide that nematicidal composition of the present invention is mixed with is as follows:
Described nematicidal composition is cream preparation, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Conventional emulsifier 10 ~ 30 parts; Conventional solvents 20 ~ 50 parts; Conventional synergist 1 ~ 5 part.The concrete production stage of this cream preparation be first active ingredient fosthiazate and fluorine pyrrole bacterium acid amides are added dissolve completely in solvent after add emulsifier again, synergist becomes transparent and homogeneous oily liquids after stirring, filling, namely can be made into the cream preparation of the present composition.
Described nematicidal composition is suspending agent, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Dispersant 5 ~ 20 parts; Antifreezing agent 1 ~ 5 part; Thickener 0.1 ~ 2 part; Defoamer 0.1 ~ 0.8 part; Penetrating agent 0 ~ 10 part; PH value regulator 0.1 ~ 5 part; Water, surplus.The concrete production stage of this suspending agent is for first to mix other auxiliary agents, mix through high speed shear, add active ingredient fosthiazate and fluorine pyrrole bacterium acid amides, abrading-ball 2 ~ 3 hours in ball crusher, make a diameter all at below 5mm, namely can be made into the aqueous suspension formulations of the present composition.
Described nematicidal composition is wetting powder, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Dispersant 3 ~ 10 parts; Wetting agent 1 ~ 5 part; Filler, surplus.The concrete production stage of this wetting powder is: mixed with fluorine pyrrole bacterium acid amides and dispersant, wetting agent and filler by active ingredient fosthiazate by above-mentioned formula, uniform stirring in stirred tank, mixing after airslide disintegrating mill, namely can be made into the wetting powder of the present composition.
Described nematicidal composition is water dispersible granules, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Dispersant 3 ~ 10 parts; Wetting agent 1 ~ 10 part; Disintegrant 1 ~ 5 part; Filler, surplus.The concrete production stage of this water dispersible granules is: mixed with fluorine pyrrole bacterium acid amides and dispersant, wetting agent, disintegrant and filler by active ingredient fosthiazate by above-mentioned formula, pulverize with micro jet, through mediating, then add in fluidized-bed granulation dryer and to carry out after granulation, drying, screening, through sample analysis, namely can be made into the water dispersible granules of the present composition.
Described nematicidal composition is aqueous emulsion, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Emulsifier 3 ~ 30 parts; Solvent 5 ~ 15 parts; Stabilizing agent 2 ~ 15 parts; Antifreezing agent 1 ~ 5 part; Defoamer 0.1 ~ 8 part; Thickener 0.2 ~ 2 part; Water, surplus.The concrete production stage of this aqueous emulsion is: first fosthiazate and fluorine pyrrole bacterium acid amides, solvent and emulsifier, cosolvent are added together, make to be dissolved into uniform oil phase; By part water, antifreeze, other the insecticides adjuvant such as antimicrobial mixes uniformly aqueous phase; While high-speed stirred, oil phase is added aqueous phase in a kettle., slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water, shear about half an hour, form the aqueous emulsion of oil-in-water type, namely can be made into the aqueous emulsion of the present composition.
Described nematicidal composition is microemulsion, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Emulsifier 10 ~ 30 parts, antifreezing agent 1 ~ 8 part, stabilizing agent 0.5 ~ 10 part, Conventional solvents cosolvent 20 ~ 50 parts.Fosthiazate and fluorine pyrrole bacterium acid amides cosolvent are dissolved completely, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, Homogeneous phase mixing, finally adds water, can be made into microemulsion after fully stirring.
Described nematicidal composition is granule, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Wetting dispersing agent 1 ~ 10 part; Thickener 0.1 ~ 5 part; Defoamer 0.1 ~ 5 part; Castor oil, surplus is supplied.Each components such as active ingredient fosthiazate and fluorine pyrrole bacterium acid amides, dispersant, stabilizing agent, defoamer and solvent are mixed in the ratio of filling a prescription, after putting into the grinding of sand milling still, sends into mixing in mixer for well-distribution and get product.
Described nematicidal composition is aqua, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; Wetting dispersing agent 0.1 ~ 30 part; Antifreezing agent 2 ~ 8 parts; Defoamer 0.1 ~ 1 part; Thickener 0.1 ~ 3 part; Spreader-sticker 5 ~ 15 parts; Water, surplus is supplied.By active ingredient fosthiazate and fluorine pyrrole bacterium acid amides, dissolve completely with cosolvent, then add other compositions such as dispersant, antifreezing agent, defoamer, Homogeneous phase mixing, finally adds water, after fully stirring, finished product.
Described nematicidal composition is microcapsule formulations, and the mass fraction of component is: fosthiazate 1 ~ 25 part; Fluorine pyrrole bacterium acid amides 1 ~ 25 part; 5 ~ 20 parts, urea; 5 ~ 20 parts, formaldehyde; Emulsifying dispersant 5 ~ 20 parts; Antifreezing agent 1 ~ 5 part; Thickener 0.1 ~ 2 part; Defoamer 0.1 ~ 0.8 part; Water, surplus.Urea and formaldehyde (amount of substance ratio is about l:1.5 ~ 2.0) is added in the there-necked flask that agitating device is housed, regulate the pH value of solution to about 8 ~ 9 with sodium hydroxide solution, then be warming up to 70 ~ 80 DEG C, be obtained by reacting stable urea resin prepolymer.Get a certain amount of fosthiazate and fluorine pyrrole bacterium acid amides is dissolved in cyclohexane, and add emulsifying dispersant in the solution, with vigorous stirring, the O/W type stable emulsion that to be made into the aqueous solution containing emulsifying dispersant be aqueous phase.Above-mentioned urea resin prepolymer is added in emulsion, adjust ph, polymerization reaction take place under acid catalysed conditions, oil phase substance is wrapped, form microcapsule granule.Slow intensification, solidification, temperature controls at 40 ~ 50 DEG C, hardening time 1h.Select to add appropriate auxiliary agent, stable microcapsules.
Wherein above-described emulsifier is selected from calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styrylphenol polyoxyethylene ether, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, any one in polyoxyethylene aliphatic alcohol ether or more than one any mixtures than composition.
Described solvent is dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine-based vegetable oil code name is ND-45, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), one or more in water equal solvent are arbitrarily than the mixture of composition.
It is LG-3, GY-D1252, GY-D1256, SNWGF-01 that described dispersant is selected from polycarboxylate code name, lignosulfonates code name is 201107,201108, alkylphenol polyoxyethylene methyl ether condensate sulfate, alkylsulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, polyoxyethylene carboxylate, aliphatic amine polyoxyethylene ether, one or more in fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, Nekal BX, moistening bleeding agent F, alkylbenzenesulfonate polyoxyethylene triphen phosphenylic acid salt dimly, spaonin powder, silkworm excrement, one or more in soapberry powder.
Described disintegrant is selected from bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, one or more in sodium bicarbonate.
Described thickener is selected from xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose, Magnesiumaluminumsilicate, in polyvinyl alcohol one or more.
Described stabilizing agent is selected from sodium citrate, the one in resorcinol.
Described antifreezing agent is selected from ethylene glycol, propane diols, one or more in glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10one or more of fatty alcohol.
Described filler is selected from kaolin, diatomite, bentonite, attapulgite, white carbon, starch, one or more in precipitated calcium carbonate.
The compounded pesticides that the present invention is active ingredient with fosthiazate and fluorine pyrrole bacterium acid amides has obvious synergistic effect, delay the drug-fast generation in key, and reduce into product cost and use cost, be mainly used in preventing and treating solanaceous vegetable, cucurbitaceae vegetable, the insect pests such as the nematode of romaine lettuce and other leaf vegetables.
Embodiment
For making technical scheme of the present invention, object and advantage are clearly understood, the following specific embodiment of the present invention is described, but the present invention is not limited to these examples.The mode that effect experimental of the present invention adopts indoor biometrics and field trial to combine, if no special instructions, the ratio below mentioned is all ratio of quality and the number of copies.
Embodiment: fosthiazate and fluorine pyrrole bacterium acid amides different ratio co-toxicity are tested.
Test target: cucumber root-knot nematode
Evaluation method is liquid infusion method.First use the former medicine of acetone solution, appropriate active component is made into several different ratio by the result according to preliminary experiment, then it is stand-by with acetone, each process to be diluted to several concentration gradients respectively.In each hole of 96 orifice plates, inject 100ul, then add equivalent root-knot nematode suspension, at 25 DEG C, dark place is placed after one week by nematode survival number and death toll in each hole of microscopic counting.
Drug effect computational methods: lethality (%)=dead borer population/(survival number+dead borer population) × 100.
The expection effect (i.e. theoretical control efficiency, %) of mixture of active principles uses Colby formula to determine and compares with the effect observed:
Colby formula: E=X+Y-X*Y/100
E: when in composition, fluorine pyrrole bacterium acid amides working concentration is a, fosthiazate working concentration is the expection effect of the composition of b;
X: fluorine pyrrole bacterium acid amides working concentration is the expection effect of a;
Y: fosthiazate working concentration is the expection effect of b;
Illustrate there is synergistic effect when the preventive effect observed exceedes expection preventive effect.
Form 1 is that fluorine pyrrole bacterium acid amides and fosthiazate are separately to the Toxicity Determination result of cucumber root-knot nematode
result of the test shows, in room conditions fosthiazate and fluorine pyrrole bacterium acid amides is composite all has higher activity to root-knot nematode, and suggestion carries out further field control effectiveness test, to evaluate its field practical application effect.
3, field trial control cucumber root-knot nematode
3.1 test method
Test and move wind shop vegetable field in Qingdao Jimo, root-knot nematode harm is serious.9 process are established in test altogether, and employing applies mode and carries out, and after chemicals treatment, takes the method for random sampling, the sampling of 5, every community, the strain of often some random searching 2, amount to l0 strain cucumber seedling, are dug out by cucumber root, and root-knot nematode hazard level is recorded in investigation.Investigation method is undertaken by pesticide field efficacy medicine test criterion.
Eelworm harm classification adopts and pulls out strain percentage:
0 grade: without visible root nodule or pieces of an egg;
1 grade: root nodule total length accounts for total with 1%-24% of length;
2 grades: root nodule total length accounts for total with 25%-49% of length;
3 grades: root nodule total length accounts for total with 50%-74% of length;
4 grades: root nodule total length accounts for total with 75%-100% of length.
Disease index=∑ (disease at different levels is with number × relative level numerical value)/(investigating total strain number × 4) × 100;
Control efficiency (%)=(1-(process disease index/contrast disease index) × 100.
3.2 results and analysis
As can be seen from Table 2, the Mixed Pharmacy of different proportion, field experiment is carried out by different consumptions, after medicine, it is better than contrasting medicament to the control efficiency of cucumber root-knot nematode, with fosthiazate and fluorine pyrrole bacterium acid amides is composite prevents and treats root-knot nematode and imitate soon, efficiency time is long, and control efficiency is good, and effect increases progressively along with the increase of consumption.Effectively can control the harm of root-knot nematode to host, to the raising of quality of vegetable with increase production significant, have stronger popularizing value.
To sum up described in indoor biometrics and field experiment result, of the present invention with fosthiazate and fluorine pyrrole bacterium acid amides for active ingredient carries out composite nematicidal composition, good control efficiency is shown to nematode, to Target crops safety, compared with single dose, nematicidal composition of the present invention has mechanism of action uniqueness, unit dose is few, quick-acting is good, the plurality of advantages such as the lasting period is long, so research and development of the present invention and promotion conference produce very large economic worth, to vast vegetables, the increasing both production and income of the peasant household in fruit tree producing region and the protection tool of local environment are of great significance.
Claims (4)
1. one kind contains the nematicidal composition of fosthiazate and fluorine pyrrole bacterium acid amides, it is characterized in that: the active ingredient of this nematicidal composition is fosthiazate and fluorine pyrrole bacterium acid amides binary built, all the other are auxiliary element, and wherein the mass ratio of active ingredient fosthiazate and fluorine pyrrole bacterium acid amides is 1 ~ 25: 25 ~ 1.
2. nematicidal composition according to claim 1, is characterized in that: fosthiazate and fluorine pyrrole bacterium acid amides gross weight in the formulation account for 1% ~ 80% of the whole quality of the pharmaceutical preparations.
3. nematicidal composition according to claim 2, is characterized in that: fosthiazate and fluorine pyrrole bacterium acid amides gross weight in the formulation account for 5% ~ 60% of the whole quality of the pharmaceutical preparations.
4. the nematicidal composition according to claim 1 or 2 or 3, is characterized in that: the formulation of this nematicidal composition is missible oil, suspending agent, aqua, wetting powder, water dispersible granules, aqueous emulsion, microemulsion, granule, microcapsule formulations
.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105613505A (en) * | 2016-02-02 | 2016-06-01 | 山东省联合农药工业有限公司 | Nematicide containing fluoride ether bacterium amide |
| CN108353913A (en) * | 2018-03-16 | 2018-08-03 | 佛山市普尔玛农化有限公司 | A kind of nematicidal composition containing fluopyram |
| CN114557342A (en) * | 2022-02-24 | 2022-05-31 | 西安近代化学研究所 | Preparation method of fluopyram microcapsule suspending agent |
-
2014
- 2014-12-30 CN CN201410838829.9A patent/CN104585230A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105613505A (en) * | 2016-02-02 | 2016-06-01 | 山东省联合农药工业有限公司 | Nematicide containing fluoride ether bacterium amide |
| CN105613505B (en) * | 2016-02-02 | 2017-12-19 | 山东省联合农药工业有限公司 | A kind of nematicide of fluorine-containing ether bacterium acid amides |
| CN108353913A (en) * | 2018-03-16 | 2018-08-03 | 佛山市普尔玛农化有限公司 | A kind of nematicidal composition containing fluopyram |
| CN114557342A (en) * | 2022-02-24 | 2022-05-31 | 西安近代化学研究所 | Preparation method of fluopyram microcapsule suspending agent |
| CN114557342B (en) * | 2022-02-24 | 2024-03-29 | 西安近代化学研究所 | Preparation method of fluopyram microcapsule suspending agent |
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Application publication date: 20150506 |