Summary of the invention
According to the deficiencies in the prior art; the present invention proposes a kind of Pesticidal combination that contains Rynaxypyr, said composition contains A, two kinds of effective active components of B, and component A is selected from imicyafos; B is selected from Rynaxypyr; the present composition has that effect field is wide, and insecticide efficiency is high, and consumption is few; preventive effect is high; residual few, the lasting period is long, is conducive to environmental protection.
The present invention a kind ofly be take novel dose of imicyafos and Rynaxypyr and is carried out two yuan of Pesticidal combination preparations that are mixed as active ingredient, wherein in Pesticidal combination of the present invention, the ratio of weight and number of active ingredient novel pesticide imicyafos and Rynaxypyr is 1~50: 1~50, on the basis of test recipe screening targetedly, the ratio of weight and number of novel dose of imicyafos of active ingredient and Rynaxypyr can be preferably to 5~25: 3~30.
Agricultural insecticide composition of the present invention is wetting powder, suspending agent, microemulsion, aqueous emulsion and water dispersible granules by the formulations of pesticide that the preparation method in pesticidal preparations field can be prepared into, in preparation, to account for the portion rate of gross weight in preparation be 1%~80% to active ingredient gross weight, on the basis of test recipe screening targetedly, in preparation, active ingredient gross weight accounts for the portion rate of gross weight in preparation and is preferably 5%~40%, and all the other are usual auxiliaries in agricultural chemicals.
When above-described Pesticidal combination is microemulsion, in preparation, the ratio of weight and number of each component is:
The concrete production stage of this microemulsion is: former medicine imicyafos, Rynaxypyr are dissolved completely with cosolvent, then add other compositions such as emulsifier, antifreezing agent stabilizing agent, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
When above-described Pesticidal combination is wetting powder, in preparation, the ratio of weight and number of each component is:
The concrete procedure of processing of this Pesticidal combination wetting powder is: by above-mentioned formula, active principle A and active principle B and dispersant, wetting agent and filler are mixed, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, can be made into the wetting powder of the present composition.
When above-described Pesticidal combination is suspending agent, in preparation, the ratio of weight and number of each component is:
The concrete production stage of this suspending agent is for first mixing other auxiliary agents, through high speed shear, mix, add active principle A and active principle B, in ball crusher, abrading-ball is 2~3 hours, make a diameter all below 5mm, make the suspending agent preparation of Pesticidal combination of the present invention.
When above-described Pesticidal combination is aqueous emulsion, in preparation, the ratio of weight and number of each component is:
The concrete production stage of this aqueous emulsion is: first former medicine active principle A and active principle B, 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 into uniform water; When reactor high speed stirs, oil phase is added to water, 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.Make the aqueous emulsion of Pesticidal combination of the present invention.
When above-described Pesticidal combination is water dispersible granules, in preparation, the ratio of weight and number of each component is:
The concrete procedure of processing of this Pesticidal combination water dispersible granules is: by above-mentioned formula, active principle A, active principle B and dispersant, wetting agent, disintegrant and filler are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Pesticidal combination of the present invention.
Described emulsifier is selected from least one in 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, polyoxyethylene aliphatic alcohol ether.
Described solvent is at least one in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), water equal solvent.
Described dispersant is selected from least one in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, fatty acid glyceride APEO.
Described wetting agent is selected from lauryl sodium sulfate, calcium dodecyl benzene sulfonate, pulls open powder copper rosinate X., wetting and penetrating agent F, at least one in alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, soapberry powder.
Described disintegrant is selected from least one in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, sodium bicarbonate.
Described thickener is selected from least one in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, polyvinyl alcohol.
Described stabilizing agent is selected from least one in sodium citrate, resorcinol.
Described antifreezing agent is selected from least one in ethylene glycol, propane diols, glycerine.
Described defoamer is selected from silicone oil, silicone compound, C
10-20saturated fat acid compounds, C
8-10at least one in aliphatic alcohols compound.
Described filler is selected from least one in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, precipitated calcium carbonate.
Pesticidal combination of the present invention can prevent and treat nematoda, etc. the various insects such as sufficient class, coleoptera class pest, Lepidoptera class pest, gastropod, orthoptera pest, phytotrophy acarid class, thrips insect, Diptera pest, Hymenoptera insect, hidden wing order insect, Anoplura insect, Isoptera insect, Semiptera insect, damp insects, centipede insects, thousand-legger class.Especially to destroy the insect of agriculture horticultural crop and trees etc., the insect of destroying the seed of agriculture horticultural crop and trees in soil, such as nematoda, etc. sufficient class, coleoptera class pest, Lepidoptera class pest, gastropod, orthoptera pest, phytotrophy acarid class, Semiptera insect preventive effect remarkable.
The above nematode pests comprises the pratylenchus classes such as pratylenchus, pseudo-Pratylenchidae, Lu Si Pratylenchidae, disability Pratylenchidae, the Cyst nematode such as soybean cyst nematode Heterodera glycines, globodera rostochiensis class, the root-knot nematode such as peanut root-knot nematode, Meloidogyne incognita class, the Aphelenchoidea classes such as aphelenchoides besseyi, leaf bud nematode, species of Tylenchorhynchus Nematodes class, loop wire insects, needlework insects, long capsule nematoda, burr nematoda, nematode on strawberry, pine wood nematode.In addition the insects such as aphid, leafhopper, plant hopper, chrysomelid, wireworm, cutworm, diamond-back moth, imported cabbageworm, rice thrips are all had to favorable effect.
Agricultural insecticide composition of the present invention is especially to anti-eliminate aphis section, Aleyrodidae, Cicadellidae and Delphacidae insect, and the various pests such as especially various insects, pear sucker, cabbage caterpillar, diamond-back moth, beet armyworm, apple leaf miner, leaf miner, Liriomyza, Americal rice leaf miner and vegetables trialeurodes vaporariorum have efficient effect.
Pesticidal combination of the present invention is compared similar medicament a lot of other advantages, first, Rynaxypyr and novel pesticide imicyafos is composite, improved the insecticide efficiency of Rynaxypyr, delayed the resistance of insect to novel pesticide imicyafos, compare that single dose sphere of action is wider separately, improved disinsection efficiency; The second, delayed the generation of pest resistance to insecticide, reduced agricultural chemicals Reusability number of times, reduced agricultural chemicals usage amount, reduce agricultural cost; The 3rd, the residual quantity of this Pesticidal combination is lower, more friendly to environment, and the safe edible of agricultural products is significant.
Embodiment:
In order to make object of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The method that the present invention adopts indoor bioassay and field trial to combine, if no special instructions, the ratio of below mentioning (comprising percentage) is all ratio of weight and number.
Embodiment 1: by imicyafos22 part, 3 parts of Rynaxypyrs, 10 parts of lignosulfonates, 12 parts of lauryl sodium sulfate and 53 parts of mixing of diatomite, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of Pesticidal combination of the present invention.
Embodiment 2: by imicyafos8 part, 22 parts of Rynaxypyrs, 8 parts of alkylphenol polyoxyethylene, 10 parts of oxygen ethene triphenylethylene phosphenylic acid salt and 52 parts of mixing of bentonite, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of Pesticidal combination of the present invention.
Embodiment 3: by imicyafos3 part, 27 parts of Rynaxypyrs, 10 parts of dispersants, 10 parts of wetting agents and 50 parts of mixing of filler, uniform stirring in stirred tank, after airslide disintegrating mill, mixing, making the wetting powder of Pesticidal combination of the present invention.
Embodiment 4: by 12 parts of alkylphenol polyoxyethylene, 1 part of glycerine, 5 parts of CMCs, 1 part of silicone oil, 56 parts of mixing of water, through high speed shear, mix, add successively 7 parts of imicyafos18 part, Rynaxypyrs, in ball crusher, abrading-ball is 2~3 hours, make a diameter all below 5mm, make the suspending agent preparation of Pesticidal combination of the present invention.
Embodiment 5: by 12 parts of dispersants, 2 parts of antifreezing agents, 4 parts of thickeners, 2 parts of defoamers, 48 parts of mixing of water, through high speed shear, mix, add successively 22 parts of imicyafos10 part, Rynaxypyrs, in ball crusher, abrading-ball is 2~3 hours, make a diameter all below 5mm, make the suspending agent preparation of Pesticidal combination of the present invention.
Embodiment 6: by 8 parts of dispersants, 1 part of antifreezing agent, 4 parts of thickeners, 2 parts of defoamers, 61 parts of mixing of water, through high speed shear, mix, add successively 6 parts of imicyafos18 part, chlorine worm benzene first, in ball crusher, abrading-ball is 2~3 hours, make a diameter all below 5mm, make the suspending agent preparation of Pesticidal combination of the present invention.
Embodiment 7: 9 parts of imicyafos22 parts, 8 parts of Rynaxypyrs, 12 parts, turpentine oil, 7 parts of castor oil polyoxyethylene ethers, resorcinol are mixed, be dissolved into uniform oil phase; 1 part, part water, 2 parts of propane diols, silicone compound is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 4 parts of polyvinyl alcohol, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, and shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Pesticidal combination of the present invention.
Embodiment 8: 10 parts of imicyafos8 parts, 12 parts of Rynaxypyrs, 22 parts of solvents, 8 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 3 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Pesticidal combination of the present invention.
Embodiment 9: 8 parts of imicyafos5 parts, 13 parts of Rynaxypyrs, 20 parts of solvents, 8 parts of emulsifier, stabilizing agent are mixed, be dissolved into uniform oil phase; 2 parts, part water, 1 part of antifreezing agent, defoamer is mixed into uniform water; When reactor high speed stirs, oil phase is added to water, add 3 parts of thickeners, slowly add water until reach phase inversion point, open clipper and carry out high speed shear, and add remaining water to supply 100 parts, shear about half an hour, form the aqueous emulsion of oil-in-water type.Make the aqueous emulsion of Pesticidal combination of the present invention.
Embodiment 10: 50 parts of imicyafos20 part, 5 parts of Rynaxypyrs, 10 parts of aliphatic amine polyoxyethylene ethers, 10 parts of alkylnaphthalene sulfonates, 5 parts, aluminium chloride and bentonites are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Pesticidal combination of the present invention.
Embodiment 11: 48 parts of imicyafos12 part, 18 parts of Rynaxypyrs, 8 parts of dispersants, 10 parts of wetting agents, 4 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Pesticidal combination of the present invention.
Embodiment 12: 50 parts of imicyafos7 part, 18 parts of Rynaxypyrs, 11 parts of dispersants, 13 parts of wetting agents, 4 parts of disintegrants and fillers are mixed, with micro jet, pulverize, through mediating, then add and in fluidized bed prilling dryer, carry out granulation, dry, screening by sample analysis, make the water dispersible granules of Pesticidal combination of the present invention.
Embodiment 13: 10 parts of former medicine imicyafos18 parts, Rynaxypyr are dissolved completely with cosolvent, add again other compositions such as 10 parts of aliphatic acid polyethenoxy base esters, 2 parts of ethylene glycol, 3 parts of sodium citrates, 4 parts of resorcinols, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Embodiment 14: 10 parts of former medicine imicyafos21 parts, Rynaxypyr are dissolved completely with cosolvent, then add other compositions such as 11 parts of emulsifier, 2 parts of antifreezing agents, 7 parts of stabilizing agents, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Embodiment 15: 20 parts of former medicine imicyafos5 parts, Rynaxypyr are dissolved completely with cosolvent, then add other compositions such as 8 parts of emulsifier, 2 parts of antifreezing agents, 8 parts of stabilizing agents, evenly mix, finally add water, after fully stirring, can be made into microemulsion.
Indoor biometrics screening and field experiment:
The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio of below mentioning (comprising percentage) is all mass ratio.
Determination of activity example:
(1) reagent agent
The former medicine of 95%imicyafos, the former medicine of 95% Rynaxypyr.
(2) for examination worm source
Indoor diamondback moth larvae of for many generations raising, indoor conditions: temperature (26 ± 2) ℃, relative moisture 68% ± 5%, periodicity of illumination 16/8h (L/D).
(3) single dose assay method
Adopt dip method respectively two groups of former medicines all to be used to a small amount of acetone solution, then with 0.1% Tween solution, be diluted to into 5 dense solution of equal difference, be diluted in beaker with standby, and with clear water in contrast.
Diamondback moth larvae of the same size is flooded to 5S in the liquid that soaks worm cage, be placed in the culture dish that diameter is 9cm after sucking unnecessary liquid, in ware, be placed with fresh vegetable leaf and add a cover.Every concentration is processed 10, repeats 4 times, establishes blank.Keep 24h in (27 ± 1) ℃ illumination box after, check lethality, it is dead by pulling needle, touching polypide nonresponder.Lethality Abbott formula correction, then according to concentration logarithm---lethality probit value is analyzed (Bliss) method, obtains virulence regression equation and puts dead middle amount LC
50value.
(4) the joint toxicity measuring method of different proportionings
According to the toxicity test result of single dose, by active ingredient 25% ratio of weight and number imicyafos: Rynaxypyr is respectively 8:17,10:15,12:13,14:11,16:9.
Adopt above-mentioned 1.3 methods to carry out toxicity test, calculate LC
50, and press the abundant method of Sun Yun and calculate co-toxicity coefficient (CTC), co-toxicity coefficient CTC, computing formula is as follows: (take imicyafos as standard medicament, its toxicity index is 100):
The LC of the toxicity index of Rynaxypyr (TI)=imicyafos
50the LC of/Rynaxypyr
50* 100
The LC of actual toxicity index (ATI)=imicyafos of M
50the LC of/M
50* 100
TI * P Rynaxypyr of TI * P imicyafos+ Rynaxypyr of theoretical toxicity index (TTI)=imicyafos of M
TTI * 100 of the ATI/M of the co-toxicity coefficient of M (CTC)=M
In formula:
M is Rynaxypyr and the mixture of the different proportionings of imicyafos
P Rynaxypyr is Rynaxypyr shared ratio in mixture
P imicyafos is imicyafos shared ratio in mixture
(5) toxicity test result and analysis
Table 1imicyafos, the indoor measurement result of Rynaxypyr to diamond-back moth
As can be seen from the table, in being mixed of different proportion, its co-toxicity coefficient is all greater than 120, shows certain synergistic effect, wherein imicyafos: the synergistic effect that Rynaxypyr is 14: 11 is the most obvious, and co-toxicity coefficient is 198.39.Result of the test shows, under indoor conditions, Rynaxypyr, two kinds of medicaments of imicyafos all have higher activity to diamond-back moth, the result of the test of different proportion proportioning shows, by active ingredient imicyafos: when Rynaxypyr is 8:17,10:15,12:13,14:11,16:9, all show stronger synergistic effect, wherein take imicyafos: Rynaxypyr is, synergistic effect is best at 14: 11 o'clock.Suggestion is carried out further field control effectiveness test to the mixture preparation of suitable proportion 14:11 left and right scope, to evaluate its field practical application effect.
Field experiment: field trial control rice pest
(1) test method
Test is carried out in the double cropping rice field in Luo Wan village, journey market town, Jianli County, Jingzhou City, Hubei Province, and experimental field soil is loam, middle fertility, and irrigation and drainage are convenient, and surrounding is all planted double cropping rice.For before the medication of examination paddy rice, the rice is doing well.The Zhu little Ni ridge, minizone is in case string is filled with, and during dispenser, there is 3~4cm shoaling layer in field, and water conservation 7d after medicine tests four (2) for rice fulgorid low age nymph occurrence in peak period (September 4) medication in afternoon 1 time, to water 50kg/hm
2, with the evenly thick spraying of workers and peasants 16 type knapsack hand sprayers, time paddy rice in grouting mid-term, field is mainly white-backed planthopper, is secondly small brown rice planthopper, and 1~3 age nymph account for 90%.Dispenser same day is fine day, 29.5 ℃ of mean temperature of air; After medicine, 7d is all without rain, weather on this test substantially without impact.
(2) investigation method
Investigate altogether 5 times, (September 4) investigation insect population radix before medicine, 2d after medicine (September 6), 7d after medicine (September 11), 14d after medicine (September 18) investigates respectively 1 time.Take parallel great-jump-forward random sampling 15 points in every community, 2 clumps every, totally 30 clumps of rice, record respectively the borer population alive of white-backed planthopper, small brown rice planthopper by the basin method of clapping, and then calculate it and proofread and correct preventive effect (hereinafter to be referred as preventive effect).
(3) drug effect computational methods
Borer population * l00 lives before insect population decline rate (%)=(borer population of living after borer population one dispenser of living before dispenser)/dispenser;
(4) poisoning investigation method
After medicine 2,7,14d observes paddy growth situation, range estimation medicament to paddy rice all without poisoning.
(5) field control effectiveness test result of the test
Table 2 treatment agent is prevented and treated rice hoppers field control effectiveness test result
As can be seen from Table 2,25%imicyafos Rynaxypyr is better than 22% Rynaxypyr SC, 20%imicyafos SC and contrasts single dose by be mixed successful that combination prevents and treats rice hoppers of the weight portion of 14: 11,25%imicyafos Rynaxypyr insecticidal effect of 7 days after medicine is respectively 93.35%, 93.77% and 94.67%, and insecticidal effect increases progressively along with the increase of consumption.Within the scope of test dose, plant growth is normal in addition, and the poisoning phenomenon to paddy rice does not all appear in each treatment agent, illustrates that it is safe to paddy rice.