CN102037996A - Phenthoate and chlorpyrifos compounded pesticide - Google Patents
Phenthoate and chlorpyrifos compounded pesticide Download PDFInfo
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- CN102037996A CN102037996A CN2010106136721A CN201010613672A CN102037996A CN 102037996 A CN102037996 A CN 102037996A CN 2010106136721 A CN2010106136721 A CN 2010106136721A CN 201010613672 A CN201010613672 A CN 201010613672A CN 102037996 A CN102037996 A CN 102037996A
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- dimephenthoate cidial
- phenthoate dimephenthoate
- phenthoate
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Abstract
The invention discloses a phenthoate and chlorpyrifos compounded pesticide, which is characterized by comprising 5 to 75 weight percent of active ingredients, namely phenthoate and chlorpyrifos. The pesticide has the advantages that: after the phenthoate and the chlorpyrifos are compounded, obvious synergism on homopteran pests such as rice planthopper and the like is achieved, namely the quick-acting performance of the pesticide is obvious, and persistence is prolonged; and the dosage of the pesticide is reduced, obvious synergism is achieved through application, namely the quick-acting performance of the pesticide is obvious, effective duration is prolonged, the action spectrum is expanded, the dosage, application times, using cost and pollution are reduced, and the pesticide resistance of the pests is delayed.
Description
Technical field
The present invention relates to a kind of insecticide phenthoate dimephenthoate cidial and chlopyrifos composition of containing, belong to field of agrochemicals.Be specifically related to a kind of insecticide composition.
Background technology
Chlopyrifos also has very strong interior suction, stomach poison function except that stronger action of contace poison is arranged, broad-spectrum organophosphorous pesticide has quick-acting.Permeability is preferably arranged on plant leaf blade.Its mechanism of action is to suppress cholinesterase in the insect bodies.The chemical name of chlopyrifos is: O-(4-bromo-2-chlorphenyl)-O-ethyl-S-propyl group-thiophosphate.
Phenthoate dimephenthoate cidial (phenthoate) is efficient, wide spectrum is an organophosphorus insecticide, have and tag and stomach poison function, its mechanism of action is for suppressing the acetylcholinesterase in the insect bodies, and is effective to the insect of multiple biting mouthparts and sucking mouth parts, has good ovicidal activity.Quick-acting is stronger, very fast death after the insect contact, but the lasting period is shorter.Be applicable to crops such as paddy rice, cotton, fruit tree, vegetables.The chemical name of phenthoate dimephenthoate cidial is: O, O-dimethyl-S-(α-ethoxy carbonyl benzyl) phosphorodithioate.For a long time, the long-term use of single agent agricultural chemicals is used to such an extent that insect has produced pesticide resistance to various medicaments, in order to reach the effect of control of insect, has to strengthen the agricultural chemicals usage amount, so not only increases the weight of peasant's financial burden, and pollution of ecological environment.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of cost that reduces pesticide control, improves control efficiency, can delay the Recompounded pesticide of insect to phenthoate dimephenthoate cidial and chlopyrifos resistance.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of phenthoate dimephenthoate cidial and chlorpyrifos mixture agricultural chemicals, it is an active ingredient with phenthoate dimephenthoate cidial and chlopyrifos, active ingredient accounts for 5%～75% of Recompounded pesticide percentage by weight.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, described active ingredient accounts for 6%～55% of Recompounded pesticide percentage by weight.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, described active ingredient accounts for 20%～45% of Recompounded pesticide percentage by weight.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, the weight ratio of phenthoate dimephenthoate cidial and chlopyrifos is 1: 0.25～10 in the described active ingredient.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, the weight ratio of phenthoate dimephenthoate cidial and chlopyrifos is 1: 1～3 in the described active ingredient.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, described phenthoate dimephenthoate cidial accounts for 2%～30% of Recompounded pesticide percentage by weight, and chlopyrifos accounts for Recompounded pesticide percentage by weight 4%～50%.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, the surfactant percentage by weight is 1%～10%, the percentage by weight 15%-94% of solvent, carrier and auxiliary agent.
As a kind of preferred version of phenthoate dimephenthoate cidial of the present invention and chlorpyrifos mixture agricultural chemicals, wherein, described composition pesticide is missible oil, wetting powder, aqueous emulsion or granule.
When the present invention was missible oil, solvent for use was one or more mixtures in benzene,toluene,xylene, methyl alcohol, ethanol, isopropyl alcohol, butanols, a line oil, cyclohexanone, dimethyl formamide, dimethyl sulfoxide (DMSO), N-Methyl pyrrolidone, ethyl acetate, acetone, butanone, the gylcol ether.Used surfactant is one or more mixtures in alkylbenzenesulfonate, aliphatic alcohol sulfate, alkylphenol polyoxyethylene, alkyl phenyl phenol polyethenoxy ether, alkylphenol-polyethenoxy polyethenoxy ether, the alkyl phenyl phenol polyethenoxy polyethenoxy ether.
When the present invention was wetting powder and granule, used carrier was one or more mixtures in kaolin, bentonite, atlapulgite, sepiolite, white carbon, diatomite, precipitated calcium carbonate, talcum powder, the plaster of paris, chalky soil, potter's clay, imvite, the clay.Used surfactant is one or more mixtures in commercially available NNO, BX, LS, lignosulfonates, carboxymethyl cellulose salt class, alkylsulfonate, aliphatic alcohol sulfate, the alkylphenol polyoxyethylene.
When the present invention is aqueous emulsion, its continuous phase is water, and used surfactant is one or more mixtures in alkylbenzenesulfonate, aliphatic alcohol sulfate, alkylphenol polyoxyethylene, alkyl phenyl phenol polyethenoxy ether, alkylphenol-polyethenoxy polyethenoxy ether, the basic phenyl phenol polyoxyethylene poly-oxygen propylene aether.Employed other auxiliary agent is one or more mixtures in polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl (ethyl) cellulose, xanthans, gum Arabic, gelatin, starch, alginic acid, urea, ethylene glycol, propane diols, the glycerine.
When formulation of the present invention was missible oil, the preparation method that adopts was a stirring and dissolving; When formulation is wetting powder, the preparation method that adopts for earlier various raw material being mixed then through comminution by gas stream to required particle diameter; When formulation is aqueous emulsion, the preparation method that adopts in the aqueous solution that contains surfactant, antifreezing agent, defoamer etc., two kinds of active ingredient homogeneous shears being emulsified into the liquid of the required particle diameter of milky; When formulation was granule, the preparation method who is adopted was for mixing earlier,, mediated then, through the dry gained of extruder grain to required particle diameter through comminution by gas stream.
The objective of the invention is to overcome deficiency of the prior art and defective: use separately that cost is higher in the process of phenthoate dimephenthoate cidial, chlopyrifos pest control, preventive effect is on the low side, the medicament frequency of utilization is higher and easily bring out the practical problem that insect develops immunity to drugs.A kind of insecticides that contains insecticide phenthoate dimephenthoate cidial and chlopyrifos is provided, thereby has improved the insecticidal activity of phenthoate dimephenthoate cidial, enlarged insecticidal spectrum, prolonged the service life of kind.
Tool is stopped embodiment to be proved through indoor and field trial, after two kinds of insecticides reasonable composite, have obvious synergistic effect among the present invention, the control efficiency of crop pests is significantly increased, and can enlarge insecticidal spectrum, delay the service life of single agent kind.Concrete experimental result is: phenthoate dimephenthoate cidial and chlopyrifos mass ratio 1: 0.5～10 o'clock are compared to co-toxicity coefficient (CTC) 106.34-149.38 of paddy rice rice leaf roller with single agent.Phenthoate dimephenthoate cidial is different with the chlopyrifos structure, mode of action complementation, and the two the composite generation and development that can delay pest resistance to insecticide to a certain extent improves drug effect, reduces cost.
The invention has the advantages that: behind phenthoate dimephenthoate cidial and the chlorpyrifos mixture, obtained the notable synergistic effect to homoptera pest grass such as rice fulgorids, the quick-acting of the worm agent of promptly stopping is remarkable, and lasting effect prolongs.Reduced the dosage of agricultural chemicals, the notable synergistic effect of dispenser worm, promptly the quick-acting of desinsection is remarkable, and the lasting period prolongs, and has enlarged action spectrum, has reduced dosage, spraying times and drug cost, reduces the generation of polluting and having delayed pest resistance to insecticide.
Embodiment
The present invention is further illustrated with application below in conjunction with embodiment.
Experimental example 1
1 test objective
Rice leaf roller is an insect pest of rice, has a strong impact on output and the economic benefit of paddy rice.For effectively preventing paddy rice rice leaf roller, solve the resistance of paddy rice simultaneously to phenthoate dimephenthoate cidial and chlopyrifos, reduce pesticide cost, improve preventive effect.We carry out indoor joint toxicity measuring with drop method to the paddy rice rice leaf roller with the mixture of not making on year-on-year basis of phenthoate dimephenthoate cidial and chlopyrifos.
2 materials and methods
2.1 experimental condition
2.1.1 for the examination insect
Rice leaf roller Nilaparvata lugens picks up from suburb, Yangzhou paddy field, through 2 generations of indoor propagation, gets its nymph for examination in 3 age.
2.1.2 condition of culture
The rice leaf roller that the land for growing field crops is fetched is placed in the pot rice guard dependent insect cage to be raised.Under field conditions (factors), breed from July 20 to September 22.The maximum air temperature is 35 ℃ between breeding period, 24 ℃ of the minimum air temperatures, and natural lighting, for the military fragrant round-grained rice 14 of the rice varieties that tries the water, soil property is a sandy loam, organic matter 1.6, pH value 6.9.Paddy rice is managed same land for growing field crops.Rice leaf roller is not used any chemical control between breeding period.
2.1.3 instrument and equipment
Potted plant guard dependent insect cage, pest sucking device, illumination box, teat glass, electronic balance, filter paper, beaker, culture dish, pipettor, writing brush soaks the worm string bag, stopwatch etc.
2.2 reagent
2.2.1 test medicine
Phenthoate dimephenthoate cidial (you are diffusing, philharmonic diffusing for benefit), the former medicine of phenthoate:93% is provided by Jiangsu Tenglong Biological Pharmaceutical Co., Ltd..
Chlopyrifos (Le Siben), the former medicine of chlorphrifos:95% is provided by Jiangsu Tenglong Biological Pharmaceutical Co., Ltd..
2.2.2 other reagent
Acetone (solvent), 0.1% Tween 80 (surfactant)
2.3 test is handled
2.3.1 dosage setting
By the requirement of Jiangsu Tenglong Biological Pharmaceutical Co., Ltd., the former medicinal acetone solution of two single agent of phenthoate dimephenthoate cidial and chlopyrifos is mixed with the preparation that concentration is 5 different proportionings of 45%.Each preparation 100ml, the former medicine 45ml of phenthoate dimephenthoate cidial and chlopyrifos wherein, acetone 55ml.Proportioning is as follows.
The different proportionings of phenthoate dimephenthoate cidial chlopyrifos
2.3.2 test is handled and design iterations
According to phenthoate dimephenthoate cidial and chlopyrifos preliminary experiment result, to add 0.1% Tween 80 for examination phenthoate dimephenthoate cidial and 6 kinds of proportioning medicaments of chlopyrifos and be diluted to 5 concentration (active ingredient), be respectively 112.5mg a.i./L, 56.25mg a.i./L, 25.625mg a.i./L, 14.063mga.i./L and 7.0313mg a.i./L, other establishes clear water contrast, totally 6 processing.Every processing is for 120 of examination rice leaf roller, and each drug concentration is handled 4 times and repeated.
2.4 test method
Adopt dip method, with reference to the indoor biological activity determination test rule of agricultural chemicals insecticidal n Y/T1154.6-2006, the regulation of NY/T1154.7-2006 is tested.Drawing 30 of rice leaf roller nymphs in 3 age with pest sucking device is a repetition, put into 40 order gauze pockets, in the processing soup for preparing in advance, soak 5s, take out after drying on the clean filter paper, put into the glass-tube of the no end of 1.8cm * 30cm, in vitro put into 2 of the rice stem stalks of late tillering state.The test tube upper end is pricked with gauze, and the lower end clogs with rayon balls, paddy rice is wrapped up in the root immersion preserve moisture, and checks the borer population of living in 24 hours behind medicine, calculates the average mortality of each processing, and the calculation correction lethality.
2.5 data survey and statistical analysis
2.5.1 corrected mortality calculates
Test and check dead borer population, statistical correction lethality after 24 hours
2.5.2LC
50Calculating
Convert each experimental concentration to logarithm value (x), corrected mortality converts probit value (y) to, calculates independent regression equation y=a+bx with method of least squares, calculates the LC of each medicament then
50, and calculate 95% confidence interval and b value and standard error.
2.5.3 co-toxicity coefficient computational methods
The actual measurement toxicity index of mixture is calculated and is used following formula:
In the formula: ATI-mixture actual measurement toxicity index;
The LC of S-standard insecticide
50, unit is every liter (mg/L) of milligram
The LC of M-mixture
50, unit is every liter (mg/L) of milligram
The actual measurement toxicity index of mixture is calculated and is used following formula: TTI=TI
A* P
A+ TI
B* P
B
In the formula: the theoretical toxicity index of TTI-mixture;
TI
A-A medicament toxicity index;
P
AThe percentage composition of-A medicament in mixture, unit are percentage (%)
TI
B-B medicament toxicity index;
P
BThe percentage composition of-B medicament in mixture, unit are percentage (%).
Co-toxicity coefficient calculates uses following formula:
In the formula: the CTC-co-toxicity coefficient
ATI-mixture actual measurement toxicity index
The theoretical toxicity index of TTI-mixture;
Evaluation criterion: composite dose co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; CTC≤80 show as antagonism;
80＜CTC＜120 show as summation action.
3 results and analysis
8 medicament variable concentrations such as medicament phenthoate dimephenthoate cidial, chlopyrifos and different proportioning medicament phenthoate dimephenthoate cidial chlopyrifos thereof No. 1, No. 2, No. 3, No. 4, No. 5 are handled the result of the test initial data of rice leaf roller is put in order in subordinate list after 24 hours.Each pharmacy test concentration in the subordinate list is converted to logarithm value x, and corrected mortality converts probit value y to, in table 1.Calculate its regression equation according to table 1 result, and calculate LC
50And co-toxicity coefficient, the results are shown in Table 1.
Table 28 kind of different medicaments are to the malicious together coefficient determination result of the virulence of rice leaf roller (24 hours)
4 conclusions and evaluation
Indoor joint toxicity measuring and formulation screening test result show: phenthoate dimephenthoate cidial all has certain synergistic effect with 5 kinds of different proportioning preparations that chlopyrifos is mixed to rice leaf roller.
Embodiment 2
Phenthoate dimephenthoate cidial 15 grams (rolling over hundred content), chlopyrifos 15 grams, calcium dodecyl benzene sulfonate 3 grams, fatty alcohol-polyoxyethylene ether (n=20) 7 grams are with diformamide 20 grams, xylene soluble gets 100 gram missible oil products, according to 100 gram/mu dosage control paddy rice rice leaf roller, the spray medicine once connects and sprays 2 times every about 7 days, 77.3%, 14 day " Invest, Then Investigate " preventive effect of 7 days average preventive effects of " Invest, Then Investigate " is 91.5%.
Embodiment 3
Phenthoate dimephenthoate cidial 30 grams (rolling over hundred content), chlopyrifos 15 grams, calcium dodecyl benzene sulfonate 2 grams, polyoxyethylene nonylphenol ether (n=20) 3 grams, one line oil, 5 grams, carboxymethyl cellulose salt 0.3 gram, propane diols 3 grams, defoamer 0.2 gram, deionized water adds to 100 grams, adopts high speed shear stirring and emulsifying machine dispersed with stirring, and mixing speed is 2000 rev/mins, mixing time is 30 minutes, gets the white emulsion product that evenly can flow.According to 100 gram/mu dosage control paddy rice rice leaf roller, the spray medicine once connects and sprays 2 times every about 7 days, and 79.5%, 14 day " Invest, Then Investigate " preventive effect of 7 days average preventive effects of " Invest, Then Investigate " is 93.4%.
Embodiment 4
Phenthoate dimephenthoate cidial 5 grams (rolling over hundred content), chlopyrifos 15 grams, NN04 gram, BX4 gram, white carbon 10 grams, atlapulgite is added to 100 grams, is the 20um wetting powder through comminution by gas stream to average grain diameter, according to 100 gram/mu dosage control rice-stem borer, the spray medicine once every about 7 days, connect and spray 2 times, 73.5%, 14 day " Invest, Then Investigate " preventive effect of 7 days average preventive effects of " Invest, Then Investigate " is 85.7%.
Embodiment 5
Phenthoate dimephenthoate cidial 2 grams (rolling over hundred content), chlopyrifos 4 grams, sodium lignin sulfonate 4 grams, dodecyl sodium sulfate 2 grams, white carbon 20 grams, bentonite are added to 100 grams, through comminution by gas stream to average grain diameter is the 20um wetting powder, adding 10 restrains 6% polyvinyl alcohol water solutions and stirs in above-mentioned wettable powder, by the extruder grain oven dry, obtains 100 gram 2mm*5mm dispersibility granula products.According to 120 gram/mu dosage control paddy rice paddy stem borer, the spray medicine once connects and sprays 2 times every about 7 days, and 80.3%, 14 day " Invest, Then Investigate " preventive effect of 7 days average preventive effects of " Invest, Then Investigate " is 93.7%.
Embodiment 6
Phenthoate dimephenthoate cidial 5 grams (rolling over hundred content), chlopyrifos 50 grams, calcium dodecyl benzene sulfonate 0.5 gram, dodecylphenyl phenol polyethenoxy polyethenoxy ether 3 grams, cyclohexanone 3 grams, xanthans 0.4 gram, defoamer 0.1 gram, deionized water adds to 100 grams, adopt high speed shear stirring and emulsifying machine dispersed with stirring, mixing speed is 4000 rev/mins, and mixing time is 15 minutes, gets the white emulsion product that evenly can flow.According to 100 gram/mu dosage control paddy rice rice leaf roller, the spray medicine once connects and sprays 2 times every about 7 days, and 78.1%, 14 day " Invest, Then Investigate " preventive effect of 7 days average preventive effects of " Invest, Then Investigate " is 91.8%.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. phenthoate dimephenthoate cidial and chlorpyrifos mixture agricultural chemicals, it is characterized in that: with phenthoate dimephenthoate cidial and chlopyrifos is active ingredient, and active ingredient accounts for 5% ~ 75% of Recompounded pesticide percentage by weight.
2. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: described active ingredient accounts for 6% ~ 55% of Recompounded pesticide percentage by weight.
3. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: described active ingredient accounts for 20% ~ 45% of Recompounded pesticide percentage by weight.
4. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: the weight ratio of phenthoate dimephenthoate cidial and chlopyrifos is 1:0.25 ~ 10 in the described active ingredient.
5. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: the weight ratio of phenthoate dimephenthoate cidial and chlopyrifos is 1:1 ~ 3 in the described active ingredient.
6. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: described phenthoate dimephenthoate cidial accounts for 2% ~ 30% of Recompounded pesticide percentage by weight, and chlopyrifos accounts for Recompounded pesticide percentage by weight 4% ~ 50%.
7. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: the surfactant percentage by weight is 1% ~ 10%, the percentage by weight 15%-94% of solvent, carrier and auxiliary agent.
8. according to described phenthoate dimephenthoate cidial of claim 1 and chlorpyrifos mixture agricultural chemicals, it is characterized in that: described composition pesticide is missible oil, wetting powder, aqueous emulsion or granule.
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Citations (4)
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|---|---|---|---|---|
| CN1449249A (en) * | 2000-08-28 | 2003-10-15 | 巴斯福公司 | Organophosphorous compositions |
| CN101305714A (en) * | 2008-01-26 | 2008-11-19 | 益阳市润慷宝化工有限公司 | Malathion - phoxim EC and its preparation method |
| CN101427688A (en) * | 2008-10-27 | 2009-05-13 | 蔡国祥 | Compounded pesticide for preventing and treating pesticide resistant diagonal noctuid |
| CN101622999A (en) * | 2009-08-12 | 2010-01-13 | 深圳诺普信农化股份有限公司 | Insecticidal composition containing metaflumizone |
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2010
- 2010-12-30 CN CN2010106136721A patent/CN102037996A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1449249A (en) * | 2000-08-28 | 2003-10-15 | 巴斯福公司 | Organophosphorous compositions |
| CN101305714A (en) * | 2008-01-26 | 2008-11-19 | 益阳市润慷宝化工有限公司 | Malathion - phoxim EC and its preparation method |
| CN101427688A (en) * | 2008-10-27 | 2009-05-13 | 蔡国祥 | Compounded pesticide for preventing and treating pesticide resistant diagonal noctuid |
| CN101622999A (en) * | 2009-08-12 | 2010-01-13 | 深圳诺普信农化股份有限公司 | Insecticidal composition containing metaflumizone |
Non-Patent Citations (2)
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| 张文明: "颁（换）发农药产品生产批准证书名单（2009年第五批）", 《工业和信息化部《2009年颁（换）发农药产品生产批准证书名单（第五批）公告》拟发布的产品》 * |
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Application publication date: 20110504 |