CN101116445A - Method for improving the effect of chemical agent for preventing and curing lepidopterous pests - Google Patents
Method for improving the effect of chemical agent for preventing and curing lepidopterous pests Download PDFInfo
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- CN101116445A CN101116445A CNA2007100712735A CN200710071273A CN101116445A CN 101116445 A CN101116445 A CN 101116445A CN A2007100712735 A CNA2007100712735 A CN A2007100712735A CN 200710071273 A CN200710071273 A CN 200710071273A CN 101116445 A CN101116445 A CN 101116445A
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- chlopyrifos
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- worm prestige
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Abstract
The invention discloses a method of improving the control effects of the lepidoptera pest of a medicine, belonging to the pest control technical field. The method is as follows: (1) the indoxacarb and the chlopyrifos are mixed according to the ratio 1:7-35 of the percentages by weight of the active ingredient of indoxacarb and the percentages by weight of the active ingredient of chlopyrifos; (2) with 8 to 40 grams of active ingredients for each mu is added with 30 to 60 liters of water to make the water solution; (3) during the crop lepidopterous larvae prime, the water solution is sprayed on the crop. The compound insecticide is capable of an oblivious synergistic action, the cotoxicity coefficient is more than 300, the drug resistance of pest is delayed, the pesticide use cost for each mu is lowered, the cost is reduced from 12 to 15 yuan for the indoxacarb single agent to 5 to 7 yuan for the mixing agent, the prevention and cure spectrum is enlarged and the high efficiency pesticide application time is prolonged. The method can be applied to control the lepidoptera pest and other pests of such crop as rice and vegetables etc.
Description
Technical field
The invention belongs to control pest technical field, especially belong to a kind of composite using method that improves the original pharmacy effect of control lepidoptera pest.
Background technology
Rice leaf roller, prodenia litura, diamond-back moth etc. all belong to Lepidoptera, are the primary pests of paddy rice and vegetables, and occurrence degree is serious in recent years, and above-mentioned production has been caused bigger influence.The rise of simultaneously current pollution-less agriculture has proposed new requirement to the use of agricultural chemicals, clearly ban use of severe toxicity, high poison, high residue and carcinogenic, teratogenesis, mutagenesis agricultural chemicals, and the consumption of available agricultural chemicals, working concentration, use age etc. have all been done strict control.
In the past, indenes worm prestige (indoxacarb) is though have the better prevention effect to rice leaf roller, prodenia litura, diamond-back moth etc., but its use cost higher (12-15 unit/mu), narrower of its insecticidal spectrum is better to the lepidoptera pest effect simultaneously, and to other insect poor effect; Chlopyrifos (chlorpyrifos) is though use cost lower (2-5 unit/mu), and genus broad spectrum pesticide, effective to most insects, but its low instar larvae effect to rice leaf roller, prodenia litura, diamond-back moth is better, preventive effect is more than 80%, high instar larvae effect to above-mentioned insect is then not good, generally only is about 60%, so its dispenser efficiently is narrower period.
Summary of the invention
The present invention seeks to existing defectives such as higher at indenes worm prestige (indoxacarb) use cost, that insecticidal spectrum is narrower and the efficient dispenser of chlopyrifos (chlorpyrifos) period is narrower, by above-mentioned two kinds of medicaments rationally being mixed and using, provide a kind of and can reach that insecticidal spectrum is wide, control efficiency good, safety, low, the dispenser broad in period of use cost, especially lepidoptera pest is had the method for higher insecticidal effect.
The present invention is achieved through the following technical solutions.
A kind of method that improves effect of chemical agent for preventing and curing lepidopterous pests, this method is carried out according to the following steps:
(1) with indenes worm prestige (indoxacarb) and the weight portion 1 of chlopyrifos (chlorpyrifos) by its active ingredient: 7-35 is mixed, and is standby;
(2) step (1) mixed agent is pressed active ingredient 8-40 gram/mu consumption, add water 30-60 liter, be made into the aqueous solution;
(3), use crop lepidopterous larvae occurrence in peak period spraying plant with step (2) aqueous solution.
Described method can further be improved, and wherein said indenes worm prestige (indoxacarb) is 1 with the weight part ratio that is mixed of chlopyrifos (chlorpyrifos) active ingredient: 13-25.
Described method also can further be optimized, and wherein said indenes worm prestige (indoxacarb) is 1: 19 with the weight part ratio that is mixed of chlopyrifos (chlorpyrifos) active ingredient.
The invention has the beneficial effects as follows:
1, the present invention is with indenes worm prestige and the chlopyrifos weight portion 1 in its active ingredient: after the 7-35 ratio rationally is mixed, have obvious synergistic effect, its co-toxicity coefficient is all more than 300; And can delay the drug-fast generation of harmful insect, pest resistance treatment is had great importance;
2, mixed agent consumption of the present invention is in its active ingredient 8～40 gram/mus, can effectively prevent and treat the lepidoptera pest on the important agricultural crops such as paddy rice, vegetables, improving the drug effect of control crop pests greatly, as behind the medicine 7 days, is 92.35-98.67% to the effect of control rice leaf roller; Behind the medicine 7 days, insect-the diamond-back moth field efficacy was 93.70-97.40% to the control brassicaceous vegetable; Behind the medicine 7 days, insect-the prodenia litura field efficacy was 94.20-97.10% to the control brassicaceous vegetable; Because higher its weight portion of indenes worm prestige of this mixed agent Central Plains medicine cost only is 1, and its weight portion of the lower-cost chlopyrifos of former medicine is 7-35, therefore greatly reduce agricultural cost, mu is reduced to the 5-7 unit of mixed agent by the 12-15 unit of the single agent of indenes worm prestige with cost; And can expanding prevention compose, to simultaneous various pests, as the tea caterpillar of tea tree, the cotton bollworm of cotton, the peach fruit borer of fruit tree etc. stronger control efficiency is arranged all, thereby help delaying even overcome owing to the chemical pesticide rampant again problem of insect that screening causes between planting.
Though 3, the wide advantage of chlopyrifos tool insecticidal spectrum, its efficient dispenser is narrower period, after being mixed, has improved the control efficiency to larva at advanced age (more than 3 ages), thus widened efficient dispenser period (from 1 age of insect to 4 length of times.)。
The present invention has excellent control efficiency, efficacy stability, lasting effect, safety are arranged preferably, reduced the cultural control cost, broad spectrum activity is good, insect is planted by the Zhiduo County of can a dispenser holding concurrently, widened dispenser period, thereby receives remarkable economic efficiency and social benefit.
Embodiment
The present invention is described in further detail with the test example by following examples.
Embodiment all adopts following raw material medicament with the test example:
15% indenes worm prestige (indoxacarb) suspending agent, E.I.Du Pont Company produces.
48% chlopyrifos (chlorpyrifos) missible oil, The Dow Agrosciences, LLC. produces.
Embodiment 1:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 9 grams with balance weighing apparatus respectively, put into bucket, pour clear water into and mix thoroughly for 30 liters, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Embodiment 2:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 14 grams with balance weighing apparatus respectively, put into bucket, pour clear water into and mix thoroughly for 50 liters, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Embodiment 3:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 19 grams with balance weighing apparatus respectively, put into bucket, pour clear water into and mix thoroughly for 40 liters, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Embodiment 4:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 24 grams with balance weighing apparatus respectively, put into bucket, pour clear water into and mix thoroughly for 35 liters, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Embodiment 5:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 29 grams with balance weighing apparatus respectively, put into bucket, pour clear water into and mix thoroughly for 55 liters, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Embodiment 6:
After going out active ingredient amount 15% indenes worm prestige 1 gram, 48% chlopyrifos and be 35 grams with balance weighing apparatus respectively, put into bucket, pour 60 liters of clear water into and mix thoroughly, use sprayer then, on the plant in lepidopterous larvae occurrence in peak period even spraying to mu field.
Test routine 1:(insecticide formulation screening)
" dip method " of NY/T1154.7-2006 adopted in test.15% indenes worm prestige that two single agent and embodiment 1 to 6 are mixed with and 6 composite dose of 48% chlopyrifos are mixed with the soup of series concentration respectively, and three repetitions are established in every processing, every processing with rice leaf roller for 30 of examination worms.To put into special-purpose wire small container for the examination larva earlier, and soak 10s in soup, will put into the insect box of diameter 8cm, high 6cm for the examination larva again, it is a repetition for the examination larva that every box connects 10.Rice leaf is cut into 4-5cm length, in soup, soaks 10s, behind the airing 5 blades of handling are put into box slightly and feed for the examination larva, at the constant temperature indoor feeding.Check dead borer population after 2 days and the borer population of living, calculate the LC of each single agent and composite dose with the DPS data handling system
50
The abundant method of utilization Sun Yun is calculated co-toxicity coefficient (CTC).Wherein, the mixture co-toxicity coefficient is greater than 120, and then two medicaments are synergistic effect (wherein being notable synergistic more than 170); Co-toxicity coefficient is an antagonism less than 80; Between 80-120, then two medicaments are summation action as co-toxicity coefficient.
Table 1: insecticide formulation The selection result
| The medicament title | LC 50 (mG/L) | Relative virus force index ATI | Proportioning (poison: indenes worm prestige) | Theoretical toxicity index TTI | Co-toxicity coefficient CTC |
| Chlopyrifos | 32.9377 | 13.01 | |||
| Indenes worm prestige | 4.2853 | 100 | |||
| No. 1, poison indenes worm prestige | 4.5645 | 93.88 | 9∶1 | 21.71 | 432.46 |
| No. 2, poison indenes worm prestige | 5.0562 | 84.75 | 14∶1 | 18.81 | 450.59 |
| No. 3, poison indenes worm prestige | 4.7801 | 89.65 | 19∶1 | 17.36 | 516.42 |
| No. 4, poison indenes worm prestige | 6.7213 | 63.76 | 24∶1 | 16.49 | 386.65 |
| No. 5, poison indenes worm prestige | 8.9198 | 48.04 | 29∶1 | 15.91 | 301.97 |
| No. 6, poison indenes worm prestige | 9.3254 | 45.95 | 35∶1 | 15.42 | 297.99 |
Under this experimental condition, the mixed agent of chlopyrifos and indenes worm prestige has higher indoor activity to rice leaf roller, has the notable synergistic effect simultaneously.
Test the control test of routine 2:(rice leaf roller)
1 materials and methods
1.1. test medicine: mixed insecticide among the embodiment of the invention 1-6 and 48% chlopyrifos EC.
1.2. trial crops: paddy rice (Guangdong excellent 938)
1.3. subjects: rice leaf roller (Cnaphalocrocis medinalis)
1.4. test period and place: Zhejiang Jiaxing, 17-24 day in July, 2006
1.5. experimental scheme:
1.5.1. test is handled:
Table 2 is respectively handled medicament and consumption
| Handle numbering | The medicament title | Effective ingredient mu consumption (gram) |
| 01 | No. 1, poison indenes worm prestige | 10 |
| 02 | No. 2, poison indenes worm prestige | 15 |
| 03 | No. 3, poison indenes worm prestige | 20 |
| 04 | No. 4, poison indenes worm prestige | 25 |
| 05 | No. 5, poison indenes worm prestige | 30 |
| 06 | No. 6, poison indenes worm prestige | 40 |
| 07 | 48% chlopyrifos EC | 40 |
| 08 | ck | 0 |
1.5.2. experimental scheme: test is carried out in Hu Chen village, Hu Chen township, Ninghai County, Zhejiang Province, experimental field rich water quality management homogeneous, and well-grown, the single cropping rice is to transplant June 20.8 processing are established in test altogether, repeat totally 36 sub-districts, sub-district area 33m for 4 times
2, the minizone is built little ridge and is isolated randomized arrangement.The experimental field soil property is the sticking field of light soil, and fertility is better, and the chemical sprayer tool is the Jacto manual sprayer, mu spraying liquid amount 45kg.The dispenser date is July 17, is two a leaf-roller Sheng phase in generation at that time, and wherein the 2-3 instar larvae accounts for 84.1%, tests and does not use any medicine control in preceding 14 days.Spray medicine fine day on the same day, maximum temperature is 37.6 ℃, and minimum temperature is 28.1 ℃, and mean temperature is 31.0 ℃, and the duration of test daily mean temperature is 30.4 ℃, duration of test co-falling rain 62.0mm.
1.5.3. efficacy survey: 50 clumps of rice (average every clump 12 strain, every strain 3.5 leaves) are investigated in 5 samplings in every sub-district altogether, investigation survivor of a murder attempt radix before medicine, and live borer population and leaf roll number of investigation in 7 days behind the medicine calculates insect population go down rate, leaf roll rate and proofread and correct preventive effect.
2, result of the test
Behind table 3 medicine 7 days, the effect of control rice leaf roller
| Handle numbering | 7 days insecticidal effects behind the medicine | 7 Tian Bao leaf effects behind the medicine | ||
| Preventive effect (%) | The significance of difference | Preventive effect (%) | The significance of difference | |
| 01 | 95.26 | a | 94.79 | a |
| 02 | 92.35 | a | 95.56 | a |
| 03 | 93.8 | a | 94.23 | a |
| 04 | 98.6 | a | 96.93 | a |
| 05 | 98.47 | a | 97.26 | a |
| 06 | 98.67 | a | 99.26 | a |
| 07 | 78.76 | b | 72.45 | b |
Test the test of routine 3:(control diamond-back moth)
1 experimental condition
1.1 subjects, crop and breed selection: diamond-back moth (Plutclla xylostella Linnaeus),
Wild cabbage (ball dish)
1.2 environmental condition: Zhejiang Jiaxing, sub-district bar shaped farming.
2 experimental scheme and arrangement
2.1 medicament
2.1.1 test medicine: the mixed insecticide among the experimental example 1-6 of the present invention, and 48% chlopyrifos EC;
2.1.2 dosing and numbering
Table 4 is respectively handled reagent agent and formulation rate
| Handle numbering | Medicament | Formulation rate (active ingredient amount) gram/mu |
| 01 | No. 1, poison indenes worm prestige | 10 |
| 02 | No. 2, poison indenes worm prestige | 15 |
| 03 | No. 3, poison indenes worm prestige | 20 |
| 04 | No. 4, poison indenes worm prestige | 25 |
| 05 | No. 5, poison indenes worm prestige | 30 |
| 06 | No. 6, poison indenes worm prestige | 35 |
| 07 | 48% chlopyrifos EC | 40 |
| 08 | Ck | 0 |
2.2 arrange the sub-district
2.2.1 arrange the sub-district: district's group is arranged at random
2.2.2 sub-district area and repetition: sub-district area: 33m
2Number of repetition: 4 repetitions
3 application methods
3.1 using method: convert the water even spraying
3.2 spraying equipment: Jacto type manual sprayer
3.3 spraying time and number of times: once in dispenser on October 31 in 2006.
4 investigation, record and measuring method
4.1 dispenser was fine the same day, 24.4 ℃ of maximum temperatures, 15.7 ℃ of minimum temperatures, 19.7 ℃ of daily mean temperatures, 18.8 ℃ of duration of test daily mean temperatures, duration of test co-falling rain 0.0mm.Light soil glues field, middle fertility.4.2 investigation method, time and number of times
4.2.1 control time and number of times: each investigation in 1,3,7 day is once investigated four times altogether before medicine and behind the medicine.
4.2.2 investigation method: 15 strains are demarcated in every sub-district, investigate its all insect population quantity.
4.2.3 drug effect computational methods
4.3 the direct influence to crop: reagent agent produces without any the poisoning phenomenon wild cabbage.
5 results and analysis
Table 5 control brassicaceous vegetable insect-diamond-back moth field control effectiveness test result
| Handle numbering | Behind the medicine 1 day | Behind the medicine 3 days | Behind the medicine 7 days | |||
| Preventive effect (%) | The significance of difference | Preventive effect (%) | The significance of difference | Preventive effect (%) | The significance of difference | |
| 01 | 94.60 | a | 93.94 | a | 93.70 | a |
| 02 | 95.19 | a | 97.49 | a | 95.66 | a |
| 03 | 83.58 | a | 94.58 | a | 95.16 | a |
| 04 | 95.42 | a | 98.25 | a | 97.00 | a |
| 05 | 94.6 | a | 97.5 | a | 96.4 | a |
| 06 | 96.4 | a | 99.3 | a | 97.4 | a |
| 07 | 70.2 | b | 65.3 | b | 72.11 | b |
Annotate: through 5% significance test
Test the test of routine 4:(control prodenia litura)
1 experimental condition
1.1 subjects, crop and breed selection: prodenia litura (Prodenia litura (Fabricius);
Wild cabbage (ball dish)
1.2 environmental condition: ShaoXing,ZheJiang, sub-district bar shaped farming.
2 experimental scheme and arrangement
2.1 medicament
2.1.1 test medicine: mixed insecticide among the experimental example 1-6 of the present invention and 48% chlopyrifos EC;
2.1.2 dosing and numbering
Table 6 is respectively handled reagent agent and formulation rate
| Handle numbering | Medicament | Formulation rate (active ingredient gram/mu) |
| 01 | No. 1, poison indenes worm prestige | 10 |
| 02 | No. 2, poison indenes worm prestige | 15 |
| 03 | No. 3, poison indenes worm prestige | 20 |
| 04 | No. 4, poison indenes worm prestige | 25 |
| 05 | No. 5, poison indenes worm prestige | 30 |
| 06 | No. 6, poison indenes worm prestige | 35 |
| 07 | 48% chlopyrifos EC | 40 |
| 08 | Ck | 0 |
2.2 arrange the sub-district
2.2.1 arrange the sub-district: district's group is arranged at random
2.2.2 sub-district area and repetition: sub-district area: 30m
2Number of repetition: 4 repetitions
3 application methods
3.1 using method: convert the water even spraying
3.2 spraying equipment: Jacto type manual sprayer
3.3 spraying time and number of times: once in dispenser on October 31 in 2006.
4 investigation, record and measuring method
4.1 meteorology and soil information
4.1.1 meteorological data: dispenser was fine the same day, 24.4 ℃ of maximum temperatures, 15.7 ℃ of minimum temperatures, 19.7 ℃ of daily mean temperatures, 18.8 ℃ of duration of test daily mean temperatures, duration of test co-falling rain 0.0mm.
4.1.2 soil information: light soil glues field, middle fertility.
4.2 investigation method, time and number of times
4.2.1 control time and number of times: each investigation in 1,3,7 day is once investigated four times altogether before medicine and behind the medicine.
4.2.2 investigation method
15 strains are demarcated in every sub-district, investigate its all insect population quantity.
4.2.3 drug effect computational methods
4.3 the direct influence to crop: reagent agent produces without any the poisoning phenomenon wild cabbage.
5 results and analysis
Table 7 control brassicaceous vegetable insect-prodenia litura field control effectiveness test result
| Handle numbering | Behind the medicine 1 day | Behind the medicine 3 days | Behind the medicine 7 days | |||
| Preventive effect (%) | The significance of difference | Preventive effect (%) | The significance of difference | Preventive effect (%) | The significance of difference | |
| 01 | 94.9 | a | 95.2 | a | 96.2 | a |
| 02 | 93.1 | a | 93.8 | a | 94.2 | a |
| 03 | 94.6 | a | 94.0 | a | 95.0 | a |
| 04 | 95.5 | a | 94.1 | a | 96.3 | a |
| 05 | 96.6 | a | 96.5 | a | 97.1 | a |
| 06 | 97.2 | a | 98.5 | a | 96.1 | a |
| 07 | 86.8 | b | 85.5 | b | 82.3 | b |
Annotate: through 5% significance test
Application technology:
Chlopyrifos indenes worm prestige mixed insecticide uses has excellent control efficiency to the lepidoptera pest on the important agricultural crops such as paddy rice, vegetables, dispenser period with broad, at the lepidoptera pest occurrence in peak period, recommending using dosage is every mu of active ingredient 8-40 gram, convert water 30-60 liter/mu, plant gets final product even spraying.
Claims (3)
1. method that improves effect of chemical agent for preventing and curing lepidopterous pests is characterized in that this method carries out according to the following steps:
(1) with indenes worm prestige and the chlopyrifos weight portion 1 by its active ingredient: 7-35 is mixed, and is standby;
(2) step (1) mixed agent is pressed active ingredient 8-40 gram/mu consumption, add water 30-60 liter, be made into the aqueous solution;
(3), use crop lepidopterous larvae occurrence in peak period spraying plant with step (2) aqueous solution.
2. according to the described method of claim 1, it is characterized in that the weight part ratio that is mixed of described indenes worm prestige and chlopyrifos active ingredient is 1: 13-25.
3. according to claim 1 or 2 described methods, it is characterized in that the weight part ratio that is mixed of described indenes worm prestige and chlopyrifos active ingredient is 1: 19.
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| CNB2007100712735A CN100551241C (en) | 2007-09-10 | 2007-09-10 | A kind of method that improves effect of chemical agent for preventing and curing lepidopterous pests |
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| CN101116445A true CN101116445A (en) | 2008-02-06 |
| CN100551241C CN100551241C (en) | 2009-10-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210954A (en) * | 2013-04-15 | 2013-07-24 | 北京明德立达农业科技有限公司 | Insecticide composition, insecticide and application of insecticide |
| CN103444770A (en) * | 2012-05-30 | 2013-12-18 | 天津绿动植物营养技术开发有限公司 | Pesticide |
| CN104012570A (en) * | 2014-06-27 | 2014-09-03 | 济南东泽生物科技有限公司 | Indoxacarb-chlorpyrifos suspoemulsion and preparation method thereof |
| CN106106504A (en) * | 2016-06-27 | 2016-11-16 | 江苏新农化工有限公司 | Pesticidal combination containing chlorpyrifos-methyl and preparation thereof and application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0418047D0 (en) * | 2004-08-12 | 2004-09-15 | Syngenta Participations Ag | Fungicidal compositions |
| AP2007004296A0 (en) * | 2005-06-03 | 2007-12-31 | Basf Ag | Pesticidal mixture |
-
2007
- 2007-09-10 CN CNB2007100712735A patent/CN100551241C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103444770A (en) * | 2012-05-30 | 2013-12-18 | 天津绿动植物营养技术开发有限公司 | Pesticide |
| CN103210954A (en) * | 2013-04-15 | 2013-07-24 | 北京明德立达农业科技有限公司 | Insecticide composition, insecticide and application of insecticide |
| CN104012570A (en) * | 2014-06-27 | 2014-09-03 | 济南东泽生物科技有限公司 | Indoxacarb-chlorpyrifos suspoemulsion and preparation method thereof |
| CN106106504A (en) * | 2016-06-27 | 2016-11-16 | 江苏新农化工有限公司 | Pesticidal combination containing chlorpyrifos-methyl and preparation thereof and application |
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| CN100551241C (en) | 2009-10-21 |
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