CN1103545A - Agricultural insecticide mixture liquid - Google Patents
Agricultural insecticide mixture liquid Download PDFInfo
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- CN1103545A CN1103545A CN 93120571 CN93120571A CN1103545A CN 1103545 A CN1103545 A CN 1103545A CN 93120571 CN93120571 CN 93120571 CN 93120571 A CN93120571 A CN 93120571A CN 1103545 A CN1103545 A CN 1103545A
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- liquor
- emulsifier
- cosolvent
- cypermethrin
- methomyl
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Abstract
The present invention relates to a binary agricultural insecticide prepn, which has cypermethrin and Mieduowei (pesticide) as effective component and cosolvent, emulsifier and stabilizer as supplement, and water as solvent. As a micro-emulsion, the said insecticide prepn is non-inflammable and with no corrosion to container, less smell and strong permeability and has strong poisonousness to resistant cotton bollworm and certain bollworm egg-killing effect.
Description
The present invention relates to cypermethrin, Methomyl is the lethane of effective ingredient, above-mentioned effective ingredient cooperates microemulsion of north farming of forming through the cosolvent of screening, emulsifier, stabilizing agent, the various agricultural insect is had synergistic effect, cotton pest is had preventive effect preferably.Cotton bollworm is the primary pest on the cotton, and the harm of cotton bollworm brings massive losses for Cotton Production and textile industry.Because a large amount of, single use chemical pesticide makes the resistance problem of cotton bollworm expose more and more outstanding for a long time.The resistance mechanism of generally acknowledging can be at present: (1) separates the enhancing of toxenzyme system; (2) neural sensitivity reduction; (3) the epidermis permeability reduces.And the reduction of epidermis permeability may be one of bollworm resistance mechanism.
Because the generation of bollworm resistance makes chemical control dosage in cotton field increase, environmental pollution is serious, and the pesticide poisoning incident increases, and brings massive losses for cotton grower's production and life.The objective of the invention is to increase the environmental problem of bringing at overcoming the agricultural chemicals usage amount, increase the infiltration capacity of medicament to insect, selected carbamates has the Methomyl of ovicidal action, with the tangible pyrethroid pesticide cypermethrin of Methomyl synergistic effect, by best proportioning, being aided with cosolvent, emulsifier, stabilizing agent, is solvent with water, is processed into microemulsion of north farming.
Microemulsion is the pesticides new formulation that occurs the external eighties.It is a kind of by the ternary system that water-surfactant-the oleophylic component constitutes, because the particle diameter of formed emulsion particle is very little, therefore names and is microemulsion.It has (1) incombustibility, convenient transportation.(2) with water for going into agent, do not corrode container, do not have container restriction.(3) particle of emulsion is ultra tiny, and is littler than common missible oil, and penetration increases, so render a service high.Advantage such as (4) smell is little is very promising novel form.Because it is one of mechanism of resistance development that the epidermis permeability reduces, and microemulsion has good dispersion, the particle superfine of emulsion, the characteristics that permeability increases can overcome owing to the epidermis permeability reduces the pesticide resistance that produces.Around the physical property of cypermethrin and Methomyl, multiple solvent, emulsifier, stabilizing agent are screened, determine rational formula at last.
According to test, liquor of the present invention is composed as follows:
Cypermethrin 1-10%
Methomyl 10-30%
Cosolvent 10-40%
Emulsifier 10-30%
Stabilizing agent 1-5%
The solvent surplus
Above-mentioned each composition is evenly mixed, can preparation cost invention liquid.
Liquor of the present invention is the uniform yellow transparent liquid of outward appearance, and density is 1.04g/cm
a
The physicochemical property of liquor of the present invention and every index all meet the national standard of relevant agricultural chemicals.
In actual applications, the liquor dilute with water of the present invention of effective dose, spray pest control.Liquor of the present invention can be used for the cotton field and prevents and treats various pests, preferably prevents and treats cotton field bollworm, cotten aphid.
Except as otherwise noted, the percentage among the present invention is percent weight in volume.
The preparation of following mask body and drug effect are implemented illustration, only the present invention have been made detailed explanation, but have not limited the present invention.
Prescription one:
Cypermethrin 5%
Methomyl 15%
Cosolvent 20%
Emulsifier 20%
Stabilizing agent 5%
The solvent surplus
Above-mentioned active ingredient is evenly mixed, be mixed with single-phase transparency liquid, below Pei Fang compound method is all identical in prescription one.
Prescription two:
Cypermethrin 3%
Methomyl 17%
Cosolvent 20%
Emulsifier 25%
Stabilizing agent 5%
The solvent surplus
Prescription three:
Cypermethrin 3%
Methomyl 17%
Cosolvent 20%
Emulsifier 20%
Stabilizing agent 5%
The solvent surplus
Embodiment one: agricultural bigger mixture synergism toxicity test.
The standard drop method that assay method adopts FAO to recommend, each handles 30, triplicate, 24 hours check results of mythimna separata, 48 hours check results of cotton bollworm, 24 hours check results of cotten aphid are obtained the lethal dose of 50, and co-toxicity coefficient is tried to achieve by the abundant method of Sun Yun.
Measurement result sees Table 1, table 2, table 3.
Table 1 reagent agent is to the cotten aphid toxicity test
From experimental result as can be seen, cypermethrin+Methomyl, three kinds of proportioning co-toxicity coefficients have synergistic effect all greater than 100, but 1: 5 proportioning obviously was better than 1: 3 and 1: 10 two kinds of proportioning.For the ease of processing, later mensuration is all selected and was handled in 1: 5 approaching 3: 17.
From measurement result, the synergy that is mixed of cypermethrin and Methomyl is remarkable.
Embodiment two: the selection of cosolvent and emulsifier:
Select 4 kinds of cosolvents and 5 kinds of emulsifier to test.Result of the test sees Table 4.
Table 4 cosolvent and emulsifier are selected test
Find out that from the result to select cosolvent A.B effect better, and the toxicity height of B, thus select A as cosolvent, A as cosolvent in emulsifier first, second effect better, and after cooperating stabilizing agent, be best with the emulsifier first.
Embodiment three
No. 1 control of the farming cotton field generation cotton bollworm field control effectiveness test report of 20% north
Test method
The cotton bollworm field control effectiveness test carries out in the area just outside a city gate, Xihua County.About 60 square metres of sub-district area whenever is treated to a sub-district, triplicate.3 samplings in every sub-district, 50 strains of fixedly listing, investigation insect population radix before the dispenser, 2,4,6 days investigation insect populations rate that goes down is calculated control efficiency according to the insect population rate that goes down after the dispenser.
Result and analysis
Result of the test sees Table 5, and as seen from Table 5: No. 1,20% north farming control efficiency under same dose is higher than 10% cypermethrin and Methomyl.1000 times of uses of 10% cypermethrin, after the dispenser 2 days preventive effects only be 37.8%, 4 day be 60.1%.Main cause is on the occasion of spawning peak, and cypermethrin does not have ovicidal action, so preventive effect is relatively poor.And Methomyl has ovicidal action, so with after 1000 times of dispensers 2,4,6, a day preventive effect is respectively 74.4%, 76.4% and 82.6%, preventive effect is better than the cypermethrin that uses the same period.Control efficiency is higher than Methomyl and cypermethrin after No. 1 1000 times of dispensers of 20% north farming.
The result of the test of the Hebei Cangzhou Area institute of agricultural sciences
Test method
The cotton seedling aphids field control effectiveness test carries out in the Hebei Cangzhou Area.60 square metres of sub-district areas, each is treated to a sub-district, and 3 points are got in each sub-district, decide strain and list, and investigation insect population radix is investigated residual borer population at different time behind the spray medicine.Calculate insect population go down rate and control efficiency.
Interpretation of result
Result of the test sees Table 6, and as can be seen from Table 6, the drug effect of No. 1 control of 20% north farming cotten aphid is suitable with the 24%0000 Lingshui Spring agent of import medicament, and drug effect can reach the effective control to cotton aphid a little more than cypermethrin.
No. 1, table 5 20% north farming is to the experiment of cotton bollworm field efficacy (prescription one)
Cotton field, Cangzhou, table 6 Hebei control cotten aphid field control effectiveness test (prescription two)
Table 7 cotton seedling aphids field efficacy experiment statistics table (prescription three)
No. 1,20% north farming is at cotton field, Haidian, Beijing control cotten aphid field control effectiveness test
Test method
The cotton seedling aphids field control effectiveness test experimental field carries out at northern agricultural university research park, sub-district area 40m
2, each is treated to a sub-district, triplicate.Every sub-district the is decided at the higher level but not officially announced investigation insect population radix of listing, different time is investigated remaining borer population behind the spray medicine, calculates insect population go down rate and control efficiency.
Interpretation of result
As can be seen from Table 7, contrast medicament 20% Methomyl, 20% cypermethrin and 30% go out the bell spirit under the situation of recommended drug amount, and control efficiency all is lower than No. 1 microemulsion of 20% north farming.And No. 1, north farming after dispenser five days, control efficiency all is higher than 90%, and the lasting period is longer.
Be control efficiency to cotton-plant pest-insects of clear and definite north farming, design has been carried out field control effectiveness test in Linqing, Shandong Province county to cotton bollworm, cotten aphid spider, and result of the test sees Table 8, table 9.
From experimental result as can be seen: use 20% agricultural university No. 1 control cotten aphid, insect population goes down rate apparently higher than contrast medicament 20% Methomyl and 20% cypermethrin, can effectively control cotton aphid when recommending working concentration.
Summing up the various places field test results shows: No. one, north farming is used in the recommended drug amount, preventive effect is higher than the contrast medicament, and cotton bollworm, cotten aphid are had the control synergistic effect, is the Pesticidal mixture made of a kind of economy, efficient, no poisoning, it is one of effective agent that prevents and treats at present cotton pest, particularly cotton bollworm.
Claims (18)
1, a kind of mixed pesticide is characterized in that containing cypermethrin, two kinds of insecticides of Methomyl.
2, according to the liquor of claim 1, it is characterized in that effective ingredient cypermethrin content is 1-10%, Methomyl content is that the ratio of 10-30% is mixed.Active ingredient accounts for the 20-40%(percent weight in volume of gross weight in mixing liquor).
3,, it is characterized in that containing in the solution cosolvent according to the liquor of claim 1-2.
4, according to the liquor of claim 3, cosolvent wherein can be methyl alcohol, ethanol.
5, according to the liquor of claim 4, wherein preferred cosolvent is an ethanol.
6,, it is characterized in that containing in the solution emulsifier according to the liquor of claim 1.
7, according to the liquor of claim 6, emulsifier wherein can be 0201 or 0203, No. 500, No. 600, Du Wen 80 etc.
8, according to the liquor of claim 7, wherein preferred solvent is 0201 or 0203.
9, liquor according to Claim 8, wherein the content of emulsifier is the 10-30%(percent weight in volume)
10, according to the liquor of aforesaid right requirement 1, it is characterized in that containing in the solution stabilizing agent.
11, according to the liquor of claim 10, stabilizing agent wherein can be n-butanol, propyl alcohol.
12, according to the liquor of aforesaid right requirement 11, preferred stabilizer wherein is a n-butanol.
13, according to the liquor of claim 1-12, its feature is containing the 1-10% cypermethrin, 10-30% Methomyl, 10-40% cosolvent, 10-30% emulsifier, 1-5% stabilizing agent.(percent weight in volume)
14, according to the spray method of the liquor of above-mentioned arbitrary claim, it is characterized in that above-mentioned each active ingredient is evenly mixed, to form the liquor of homogeneous phase.
15,, it is characterized in that the above-mentioned liquor of effective dose is imposed on the crop, with pest control according to the purposes of claim 1-14.
16, according to the purposes of claim 15, insect wherein comprises the various agricultural insect.
17, according to the purposes of claim 15, wherein preferably cotton bollworm, cotten aphid.
18, according to the purposes of claim 15, wherein preferably be used to prevent and treat resistant bollworm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120571 CN1033256C (en) | 1993-12-09 | 1993-12-09 | Agricultural insecticide mixture liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93120571 CN1033256C (en) | 1993-12-09 | 1993-12-09 | Agricultural insecticide mixture liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1103545A true CN1103545A (en) | 1995-06-14 |
| CN1033256C CN1033256C (en) | 1996-11-13 |
Family
ID=4993346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93120571 Expired - Fee Related CN1033256C (en) | 1993-12-09 | 1993-12-09 | Agricultural insecticide mixture liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033256C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061216C (en) * | 1997-03-31 | 2001-01-31 | 中国农业科学院植物保护研究所 | High-efficiency cypermethrin and shachongdan combined insecticidal preparation |
| CN1073349C (en) * | 1995-04-24 | 2001-10-24 | 农业化学杀虫剂制造贸易和销售有限公司 | Pesticidy formulations and process for mfg. same |
| CN104957132A (en) * | 2015-06-30 | 2015-10-07 | 镇江先锋植保科技有限公司 | Nonflammable thiodicarb preparation formula |
-
1993
- 1993-12-09 CN CN 93120571 patent/CN1033256C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073349C (en) * | 1995-04-24 | 2001-10-24 | 农业化学杀虫剂制造贸易和销售有限公司 | Pesticidy formulations and process for mfg. same |
| CN1061216C (en) * | 1997-03-31 | 2001-01-31 | 中国农业科学院植物保护研究所 | High-efficiency cypermethrin and shachongdan combined insecticidal preparation |
| CN104957132A (en) * | 2015-06-30 | 2015-10-07 | 镇江先锋植保科技有限公司 | Nonflammable thiodicarb preparation formula |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033256C (en) | 1996-11-13 |
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