CN1027784C - Mixed insecticide liquid - Google Patents
Mixed insecticide liquid Download PDFInfo
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- CN1027784C CN1027784C CN 92108951 CN92108951A CN1027784C CN 1027784 C CN1027784 C CN 1027784C CN 92108951 CN92108951 CN 92108951 CN 92108951 A CN92108951 A CN 92108951A CN 1027784 C CN1027784 C CN 1027784C
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- liquor
- synergist
- phoxim
- cotton
- decis
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Abstract
The invention relates to an insecticidal mixed solution for reducing phytotoxicity, enhancing insecticidal effect and reducing toxicity. The liquid insecticide is prepared by mixing deltamethrin, parathion and phoxim, which are known insecticides, in different proportions according to different resistance levels of cotton bollworms by using two standards of co-toxicity coefficient and covalent coefficient, and compounding with substances for reducing phytotoxicity and a synergist. The liquid insecticide consisting of the components and commonly used emulsifier and solvent of the liquid insecticide is one of the most economic and effective pesticides for preventing and controlling agricultural pests, particularly cotton field resistant cotton bollworms at present.
Description
The present invention relates to reduce No. one, the new light of mixed liquid insecticide of poisoning, potentiating pesticidal, reduction toxicity.New light is for No. one the different resistance levels according to cotton bollworm, utilizes two standards of co-toxicity coefficient and covalency coefficient, presses different proportion with the known insecticides decis, and parathion, phoxim mix, and cooperates reduction poisoning material, and synergist is composite to form.The emulsifier that above-mentioned each components matching liquid pesticide is commonly used, No. one, the new light of solvent composition, it is ternary built by known insecticides, can prevent and treat the cotton bollworm that chrysanthemum ester class is developed immunity to drugs, reduced the consumption of parathion simultaneously, reduced toxicity, can reduce phoxim produces poisoning to cotton plant growth regulator by adding again, improve the synergist of drug effect, make new light of the present invention that the preventive and therapeutic effect of synergy be arranged various pest for No. one, can reduce the insecticide dosage, reduce toxicity, poisoning, reducing environmental pollution, is that the pest control of present cotton field is most economical, one of efficacious agents.
Pesticidal mixture made is that quantity wide in variety is big, and application surface is a class Pesticidal composition very widely.The different medicament of the insecticidal spectrum expansion insecticidal spectrum that is mixed; The pharmacy mix long with residual effect of quick-acting performances makes insecticidal action rapidly and lastingly; The high price insecticide is used with and can be reduced cost with the low price insecticide; Utilize the synergistic effect between desinsection to improve anthelminthic effect, the control resistant insect.It is a lot of to the example of various pests synergy to be mixed between pyrethrins and the organophosphorus insecticides, U.S. Pat 4305934 discloses phoxim one permethrin mixture (1: 40), and European patent application EP-A-15598 discloses phoxim one cypermethrin and phoxim one sumicidin mixture to cotton spider mites synergy.The mixture that report proof parathion-methyl and bifenthrin are also arranged is to corn borer and fall army worm synergy.
In recent years because the cotton pest development of drug resistance, pyrethrin pesticide in Hebei, high anti-area, Shandong lost control ability to cotton bollworm.Even occurred in the big generation of cotton bollworm period, some place pasts medical help, and therefore the situation of the worm of having to catch with hand selects the pesticidal preparations of economical and efficient, has become the current problem that presses for solution.
The present invention is directed to the problem of cotton bollworm control, 2160 prescriptions to 18 pesticide species screen, after the different agricultural chemicals mixing synergistic effect must be arranged, and and other mixture and pesticide species comparison using value must be standard to the maximum, selected decis, phoxim and three kinds of mixed pesticide medicaments of parathion.In concrete screening, the present invention adopt Sun Yunpei-Johnson's " co-toxicity coefficient method " estimate the synergistic effect of mixture, the economical and effective that adopts " application factor method " to estimate medicament is worth and (sees " agricultural chemicals " 1990 for details, 2 phases, 36 pages), select for use in the medicament conduct preferably of application factor maximum, co-toxicity coefficient and select medicament.
Cotton bollworm for different resistance levels, decis, parathion, three kinds of insecticidal active ingredients of phoxim have different best proportionings, and to the low area of chrysanthemum ester class resistance level, the ratio of decis is slightly high, the area that resistance level is high, the ratio of decis reduces; And excessive may causing of parathion consumption poisons in actual applications; The phoxim consumption is crossed conference plant is produced poisoning.Above-mentioned three kinds of composite reagents can be prevented and treated the cotton bollworm that chrysanthemum ester class is produced resistance, can reduce poisoning again, reduce toxicity, improve drug effect, reduce cost.Particularly, the ratio range of three kinds of insecticidal active ingredients of the present invention is a decis: phoxim: parathion=1-32: 20-172: 0-156.The content of insecticidal active ingredient of the present invention in preparation is generally from 20-80%.
In the mixing liquor of the present invention, also can further add the various synergist that chrysanthemum ester class or organophosphorus insecticides had synergistic effect.Synergist can be piperonyl butoxide, sesame ether, Octachlorodipropyl Ether, SV
1, SV
2, Butacide etc.More preferably adopt sesame ether as synergist.In liquor of the present invention, the content of synergist is generally the 0-15% of composition total content.
Find aborning, use the phoxim of high concentration, can cause growth inhibition, promote effects such as early ageing cotton plant.Because it is lower that growth inhibition and early ageing all relate to the auxin ratio,, also can further contain plant growth regulator in the preparation of the present invention therefore in order to overcome poisoning.The plant growth regulator that the present invention adopts can be materials such as growth hormone, the basic element of cell division and gibberellin.The preferred gibberellin that adopts, it is 0-1% that the consumption of gibberellin accounts for the composition total content.Add plant growth regulator, have the effect of the flower bud of guarantor simultaneously, the cotton increasing both production and income is played a role.
Except that above-mentioned various active ingredients, also contain preparation liquid pesticide emulsifier and solvent commonly used in the liquor of the present invention.The emulsifier and the solvent of various preparation missible oil all are suitable in the present invention, see the related content in the book of " chemical protection of plant " (agricultural chemicals publishing house, 1983) for details.Emulsifier content is generally the 5-20% of liquor, and surplus is a solvent.
According to above-mentioned, liquor of the present invention is composed as follows:
Decis 0.5-16%
Phoxim 20-86%
Parathion 0-78%
Synergist 0-15%
Plant growth regulator 0-1%
Emulsifier 5-20%
The solvent surplus
Above-mentioned each composition is evenly mixed, can be made into liquor of the present invention.
Liquor of the present invention is the uniform brownish red oily liquids of outward appearance, and density is 1.02g/cm
3The physicochemical property of liquor of the present invention and various indexs all meet the national standard of relevant emulsifiable concentrates for 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 control of cotton field various pests, preferably the cotton mouthful cotton bollworm of control.
Except as otherwise noted, the percentage among the present invention is percent weight in volume.
The preparation of following mask body and drug effect embodiment only are described in detail the present invention, but do not limit the present invention.
Embodiment 1: the mensuration of several single agent application factors
Adopt the method for indoor accurate toxicity test, measure the Lc50 value of each medicament in the following table, tested on July 6th, 91 and carry out.The three bell cotton bollworm larvaes that adopt the artificial indoor rearing are as the examination worm.Medicament is diluted with water to series concentration, adopts the spraying of potter spray tower, spray value 5ml, each repeats with 10 cotton bollworms, each medicament triplicate, water gagings such as control group spray.After the spray medicine finishes, try worm and continue to raise under 27 ℃ of conditions, checkout facility after 48 hours is death to stir the examination worm gently reactionless, writes down, calculates the Lc50 value, and further computing application coefficient.
Prescription one:
Decis 1%
Phoxim 40%
Parathion 8%
Sesame ether 1%
Gibberellin 0.1%
203 emulsifier 8%
The dimethylbenzene surplus
After table 1 is seen literary composition
From experimental result as can be known, the application factor maximum of No. one, new light.Promptly reach under the situation of identical control efficiency at above-mentioned medicament, new cost of light is minimum, the using value maximum.
Embodiment two: to the accurate toxicity test of high resistance helicoverpa armigera
This experiment adopts cotton field, Ji County, Hebei in 1992 cotton bollworm in three ages as the examination worm.Except that No. one, the new light that adopts prescription two as the reagent agent, the method for the accurate toxicity test of present embodiment is identical with embodiment one, utilizes the abundant co-toxicity coefficient method of Sun Yun to calculate co-toxicity coefficient.See prescription two tables two for details.
Prescription two
0.5 part of decis
73 parts of phoxims
26.5 parts of parathion
4 parts of Butacides
The drug effect that has also compared No. one, the new light that does not add synergist in this test.The new light that does not add synergist in table two is represented with x for No. one.
After table two is seen literary composition
Experimental data shows, No. one, new light has the preventive and therapeutic effect of synergy to cotton bollworm, and co-toxicity coefficient is 352, nearly three sesquialters of synergy, add synergist after, control efficiency slightly improves.
Embodiment three: the accurate toxicity test of the anti-regional cotton bollworm of centering
Cotton field, Ji County, nineteen ninety Hebei is adopted in this experiment, three age cotton bollworm as the examination worm.Cotton bollworm this moment is lower than 1992 to the pesticide resistance of chrysanthemum ester in this area.The drug effect that has compared binary mixture and ternary mixture in this experiment, concrete component ratio is that 0-E mixture * is a decis: parathion=4.8: 95.2; The hot mixture * of 0-is a decis: phoxim=4.8: 95.2; New light is for No. one decis: parathion: phoxim=1: 50: 49.The drug effect that adds synergist and do not add formulation of synergist has also further been compared in this experiment.The addition of synergist is to add 4 parts of sesame ethers or other synergist in per 100 parts of active ingredients.The prescription of representing not add synergist with *.The concrete prescription that No. one, new light is seen prescription three.Identical among this method of testing accurate toxicity test and the embodiment one, experimental data sees table three for details.
Prescription three
1 part of decis
50 parts of parathion
49 parts of phoxims
4 parts in sesame ether
According to a conventional method above-mentioned active ingredient is mixed with missible oil.
After table three is seen literary composition
Experimental data shows, the synergistic effect of ternary mixture is 459 than the binary mixture co-toxicity coefficient of new light that adds behind the synergist that is significantly improved, and nearly four sesquialters of mixture synergism be describeds, and drug effect is than the obvious improve of other prescription.
Embodiment four: to low bollworm resisting precision
This test adopts Ji County cotton bollworm in three ages in 1988 as the examination worm, and the cotton bollworm of this moment is lower to the resistance level of chrysanthemum ester.Except that No. one, the new light that adopts prescription four as the reagent agent, this test method is with identical with embodiment one.Detailed content is seen prescription four tables four.
Prescription four
12 parts of decises
10 parts of parathion
78 parts of phoxims
4 parts in sesame ether
According to a conventional method active ingredient is mixed with missible oil.
After table four is seen literary composition
The large usage quantity of decis in the prescription four.Mixture and single agent synergy are nearly more than four times.
The data of consolidated statement two-four can find that the Ji County cotton bollworm mainly developed the resistance to pyrethrin pesticide.From 88-92 the pesticide resistance of decis has been increased by 14.6 times, the preventive effect of chrysanthemum ester class medicament descends greatly.Situation according to the bollworm resistance development of the new light of the present invention adopts different formulations.The high cotton bollworm of deltamethrin resistance has been reduced the decis consumption.Vice versa.Through the prescription two-four of repeated screening, co-toxicity coefficient is all more than 300-400, than using single agent synergy 3-4 doubly.In actual applications, No. one, new light of the present invention can be according to the varying level of each regional pest resistance development, and the selective advance level is bigger, the prescription of most economical practicality, prevents and treats cotton pest effectively.
Embodiment five: reduce the poisoning data
1. phoxim is a principal item of preventing and treating resistant bollworm now, but 50% phoxim (Lianyun Harbour product) flower bud phase (plant height 10-14cm), when each mu consumption surpasses 60ml, investigation in 15 days after the dispenser, applying area is compared with check plot (100 strains are investigated in every district), the average short 0.5cm(p of plant height＜0.05).According to investigations, phoxim used in the cotton later stage, also can cause early ageing.
It is on the low side to consider that growth inhibition and early ageing all relate to the auxin ratio, therefore, for overcoming poisoning, should add an amount of plant growth promoter.
2. according to investigations, cotton boll larva 20-30 flower bud of will causing harm all one's life, in fact the cotton instars of these flower buds do not eat up, but through the cotton boll insect bite after flower bud is taken place comes off.It is reported (E.E.King, H.C.Lane, 1966) that discovery is a kind of from the cotton boll of being caused harm by cotton bollworm larvae can cause the protein substance that comes off, and produces the effectiveness of similar abscisic acid, and adds some exogenous growth hormones, can offset this effect.According to test, adopt 20ppm gibberellin treatment children bell, can reduce shedding of cotton bolls 34.2-80.3%.
Based on above reason, in No. one, new light, added the gibberellin of 0-1% among the present invention, through evidence: No. one, new light is to cotton plant unrestraint growth effect and devitalizing effect, and can reduce fruit abscission rate 10-15%.
An examination district test of six: 50% new light of embodiment
One. establish the district and be provided with
Be provided with two examination districts in the Meng Ling He Men Zhuan Zhao village, Wu Hang township, 200 mu of cotton areas, in examination district scope, the supply of agricultural chemicals, medication time, administrated method are carried out centralized and unified, have established two check plots in addition.
Two. administrated method:
Adopt conventional spray testing
Suitable decrement;
2. when preventive effect was lower than 80%, increased 1/3 with concentration next time;
3. be 200 times of dilutions in the maximum concentration limit.
(1) examination district's medication:
Missible oil of 50% new light is used in examination district's medication
(2) check plot medication:
The check plot uses nuvacron and Lai Fu spirit to use missible oil with.
Three. result of the test:
(1) an examination district of new light result:
Table one
Medication mu consumption hundred strain radixes were checked in 24 hours
Date ml ovum worm worm preventive effect alive %
6.20 40 320 122 2 98.4
6.23 35 270 118 4 96.6
6.27 35 32 33 1 97
(2) check plot result (table two is seen the literary composition back)
From experimental data, nuvacron of the new light of 35ml, come good fortune spirit mixture effect obviously to improve than 90ml, be suitable for large scale application.
In recent years, No. one, new light in the practice of the cotton region of provinceing pest controls such as Hebei, Henan, Shandong, prove a kind of economy, efficiently, the insecticide of no poisoning, be to prevent and treat one of efficacious agents of cotton bollworm at present.
Table two, to the accurate toxicity test (1992, the Ji County) of high resistance helicoverpa armigera
Medicine virulence equation Lc50(ppm) co-toxicity coefficient Lc90(ppm)
Decis y=1.545x+2.0941 76 512
To sulphur rattle y=1.9063x+0.0314 404 1896
Phoxim y=1.7976x+0.2167 453 2360
New * y=2.1156x+0.4211 146 588 279 of light
New y=2.009x+0.8524 116 503 352 of light
Table three, the accurate toxicity test of centering bollworm resisting
Medicine virulence regression equation Lc50(ppm) co-toxicity coefficient Lc90(ppm)
Decis y=2.047x+1.3449 61 257
To sulphur rattle y=1.907x+0.079 380 1784
Phoxim y=1.943x+0.1295 321 1462
D-E mixture * y=2.2992x+0.2534 116 418 262
The hot mixture * of D-y=2.0242x+1.0442 90 386 296
New * y=1.6174x+1.8712 86 532 387 of light
D-E mixture y=2.0507x+1.0298 86 363 353
The hot mixture y=2.3126x+0.5423 85 303 314 of D-
New y=1.6183x+1.9894 of light 72.5 448 459
Table four, to the accurate toxicity test (1988, the Ji County) of low bollworm resisting
Medicine
Virulence regression equation Lc50(ppm) co-toxicity coefficient Lc90(ppm)
Co-toxicity coefficient
y＝2.3736x+3.3005 5.2 18
Decis
y＝1.8922x-0.3020 634 3010
To the sulphur rattle
y＝1.6641x+0.5751 456 2680
Phoxim
y＝2.2830x+2.8438 8.8 32 450
No. one, new light
The application factor of table one, several single agent is measured
The actual measurement of equal value of prices such as medicine kilogram is used
Price Lc90 Lc90
(unit) equivalent (ppm) is coefficient (ppm)
10% peace 50 2 1,028 4,154 0.25
Green treasured
5% comes 50 1 514 643 0.8
The good fortune spirit
2.5% bromine 50 0.5 257 257 1
Cyano chrysanthemate
40% of a specified duration 23 17.4 3,944 4,416 2.03
Imitate phosphorus
50% first 16 31.25 16,063 3,653 4.40
Amine phosphorus
50% pair 16 31.25 16,063 1,784 9
Sulphur phosphorus
50% hot 13 27.3 14,289 1,462 9.77
Sulphur phosphorus
50% new 39 12.32 6,590 448 14.71
No. one, light
(2) check plot result
Table two
Medication mu consumption (ml) hundred strain radixes were checked in 24 hours
Date 40% nuvacron 5% comes good fortune spirit ovum worm worm preventive effect alive %
6.19 20 20 286 76 32 58
6.21 30 30 367 88 29 67
6.23 45 45 321 56 22 61
6.25 45 45 123 68 28 59
6.27 45 45 56 86 49 43
6.29 45 45 21 80 46 42
Claims (14)
1, a kind of potentiating pesticidal mixed liquor, it is characterized in that containing in the liquor decis, phoxim and parathion insecticide, decis, phoxim and parathion mix with the ratio of 1-32: 20-172: 8-156, and active ingredient accounts for the 20-80% in the percent weight in volume gross weight in mixing liquor.
2,, it is characterized in that containing in the liquor synergist according to the liquor of claim 1.
3, according to the liquor of claim 2, synergist wherein can be synergy phosphorus, Butacide, Octachlorodipropyl Ether, sesame ether piperonyl butoxide.
4, according to the liquor of claim 3, wherein preferred synergist is a sesame ether.
5,, it is characterized in that containing in the liquor synergist of the 0-15% of percent by volume meter by weight according to the liquor of claim 2.
6,, it is characterized in that containing in the liquor plant growth regulator to reduce poisoning according to the liquor of above-mentioned arbitrary claim.
7, according to the liquor of claim 6, plant growth regulator wherein can be gibberellin, growth hormone, the basic element of cell division.
8, according to the liquor of claim 7, reduction poisoning material wherein is gibberellin preferably.
9, liquor according to Claim 8 is characterized in that containing in the liquor plant growth regulation of the 0-1% of percent by volume meter by weight, to reduce poisoning.
10,, it is characterized in that liquor contains emulsifier and solvent according to the liquor of above-mentioned arbitrary claim.
11, according to the liquor of claim 10, the content of emulsifier wherein is the 5-20%(percent weight in volume), contain balance solvent in the liquor, form to constitute absolutely.
12, according to the preparation 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.
13,, it is characterized in that the liquor of effective dose is sprayed onto on the crop with pest control according to the purposes of claim 1-11 liquor.
14,, it is characterized in that preferably preventing and treating cotton field bollworm according to the purposes of claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108951 CN1027784C (en) | 1992-08-04 | 1992-08-04 | Mixed insecticide liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108951 CN1027784C (en) | 1992-08-04 | 1992-08-04 | Mixed insecticide liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1067550A CN1067550A (en) | 1993-01-06 |
| CN1027784C true CN1027784C (en) | 1995-03-08 |
Family
ID=4943891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92108951 Expired - Fee Related CN1027784C (en) | 1992-08-04 | 1992-08-04 | Mixed insecticide liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027784C (en) |
-
1992
- 1992-08-04 CN CN 92108951 patent/CN1027784C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1067550A (en) | 1993-01-06 |
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