CN101637181A - Pesticide mixture agent for preventing ostrinia nubilalis and application thereof - Google Patents
Pesticide mixture agent for preventing ostrinia nubilalis and application thereof Download PDFInfo
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- CN101637181A CN101637181A CN200910042323A CN200910042323A CN101637181A CN 101637181 A CN101637181 A CN 101637181A CN 200910042323 A CN200910042323 A CN 200910042323A CN 200910042323 A CN200910042323 A CN 200910042323A CN 101637181 A CN101637181 A CN 101637181A
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- cypermethrin
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Abstract
The invention relates to pesticide mixture agent for preventing ostrinia nubilalis and the application thereof. The pesticide mixture agent is missible oil mainly prepared by abamectin, high-efficientalpha cypermethrin, emulsifier, methyl alcohol and dimethylbenzene. The emulsifier is the mixture of triphenethyl phenmethyl polyoxyethylene ether, calcium dodecylbenzene sulfonate, benzene and alcohol solvent. By weight percentage, raw materials of the mixture agent are as follows: 1.0-2.0% of abamectin, 3.0-4.0% of alpha cypermethrin, 9-16% of emulsifier, 25-40% of methyl alcohol and 40-60% ofdimethylbenzene. When in use, the pesticide mixture agent is diluted with water at 600-900-fold and sprayed in maize bell-mouth period, tasseling stage and husking period in the fields, and thus can prevent ostrinia nubilalis, effectively reduce the population quantity of the ostrinia nubilalis and obviously reduce wood-boring steams, tassel and spike buds.
Description
Technical field
The present invention relates to the mixed agricultural chemicals of control of maize snout moth's larva, be specifically related to mixed agricultural chemicals of a kind of control of maize snout moth's larva and preparation method thereof, belong to pesticide field.
Background technology
Corn borer is the primary pest of China's corn, and this worm mainly works the mischief to corn to bore moth stem stalk, tassel and female fringe, has a strong impact on corn yield and quality, makes the corn underproduction more than 30%, brings about great losses.At present, still to use chemical pesticide, medicament kind is mainly biopesticides such as organophosphorous pesticides such as parathion, phoxim and orthene and bacillus thuringiensis,Bt to the control of maize snout moth's larva.Organophosphorus insecticide exists drawbacks such as person poultry toxicity's height, the big and difficult degradeds of residual quantity, can reduce the edible safety level of corn after the use greatly.Though the Su Yun bacillus is environmentally safe, insecticidal effect is slower, uses to reach the purpose of forcing down insect population rapidly under high insect density.Because long-term the use, corn borer develops immunity to drugs to above-mentioned medicament.Therefore, be necessary to develop a kind of remarkable to the corn borer control efficiency, insecticidal effect is quick and environmentally safe medicament.
It is to separate the natural products that obtains from actinomycetes that Ah keeps rhzomorph, belongs to biopesticide, environmentally safe.Its insecticidal mechanism is different with general insecticide, disturbing the neurophysiology activity, insect with paralysis symptom promptly appears after medicament contacts, inertia is not got food, death is usually used in preventing and treating harmful mite and phosphorus wing order class pest after 2-4 days.Because Avermectin is at the plant surface less residue, its lethal effect to the natural enemy population is also less.But compare with chemical pesticides such as organic phosphors, Avermectin have a slow slightly and expensive deficiency of action effect, limited the large-scale application of Avermectin to a certain extent.
Cypermethrin is a kind of pyrethroid insecticides, has to tag and stomach poison function, has characteristics such as the wide and speed of knocking down of insecticidal spectrum is fast, and is lower to the person poultry toxicity, is usually used in preventing and treating insect and sanitary insect pest on the various crop such as fruits and vegetables.The cypermethrin cost is lower, effect is quick, is mixed with Avermectin and can plays good complementation.The mixed agent of Avermectin and beta-cypermethrin is usually used in the control of fruits and vegetables insects such as pear sucker, two spotted spider mite, Americal rice leaf miner, diamond-back moth and cabbage caterpillar.Up to the present, domestic do not see as yet Avermectin and beta-cypermethrin made up make the report that mixed agent is applied to the corn borer control.
Fruits and vegetables insects such as pear sucker, two spotted spider mite, Americal rice leaf miner, diamond-back moth and cabbage caterpillar are mainly caused harm on the plant surface, medicament is easy to touch polypide, as long as Ah keeps rhzomorph and cypermethrin respectively as active substance, has the stronger property of medicine, even it is improper that Ah keeps the mixed ratio and the consumption of rhzomorph and cypermethrin, do not bring into play be mixed effect and concentration effect that Ah keeps rhzomorph and cypermethrin, can obtain comparatively ideal control efficiency yet.It as application number 200510042921.5 the disclosed a kind of insecticides of Chinese invention patent application, it is the microemulsion that a kind of Avermectin and beta-cypermethrin are mixed, when Avermectin and beta-cypermethrin are mixed with weight percent content 0.4% and 4.6% (dilute with water is more than 1000 times during use), the control efficiency of diamond-back moth and cabbage caterpillar is respectively 86.4%～95.8% and 85.2%～95.1%.But during to the preventing and treating of corn borer, control efficiency is less than 40% with this mixed ratio.The patent No. is that 02100024.7 Chinese invention patent discloses a kind of insecticides, Avermectin content is 0.2～0.8%, beta-cypermethrin content 1.6～6.0%, when Avermectin and beta-cypermethrin are mixed with weight percent content 0.4% and 1.6% (dilute with water is more than 1000 times during use), the control efficiency of pear sucker and two spotted spider mite is respectively 80%～95% and 85%～93%.But when with this mixed ratio corn borer being prevented and treated, control efficiency is also less than 60%.Therefore, be necessary the proportioning and the degree of Avermectin and beta-cypermethrin are prepared again, develop a kind of dimension rhzomorph and beta-cypermethrin mixed agent that can be used for corn borer control, with the medicament kind of horn of plenty control of maize snout moth's larva, alleviate the corn borer pesticide resistance and improve the corn borer control efficiency and provide one effectively to select.
Summary of the invention
The objective of the invention is to remedy the deficiencies in the prior art, provide a kind of beta-cypermethrin and Avermectin content to have best ratio range, can be used for the mixed agricultural chemicals of corn borer control.
The corn borer biological nature is different with fruits and vegetables insects such as pear sucker, two spotted spider mite, Americal rice leaf miner, diamond-back moth and cabbage caterpillars, belongs to borer pest, and its individuality pierces in the milpa and endangers, and medicament directly touches polypide often certain degree of difficulty.And active constituent content is often on the low side in existing Avermectin and the beta-cypermethrin mixed agent, and perhaps beta-cypermethrin and Avermectin content optimal components ratio are improper, do not give full play to the effect that is mixed of Avermectin and beta-cypermethrin.The present invention is on the prior art basis, through a large amount of tests, when the weight percent content of finding Avermectin and beta-cypermethrin finally is respectively 1-2% and 3-4%, can give full play to the effect that is mixed of Avermectin and beta-cypermethrin, the mixed agricultural chemicals of preparation can be used for control of maize snout moth's larva damage by disease and insect.
Purpose of the present invention is achieved by the following technical programs:
A kind of mixed agricultural chemicals of control of maize snout moth's larva, the composition of raw materials of the mixed agricultural chemicals of this control of maize snout moth's larva consists of:
The composition percentage by weight
Avermectin 1.0～2.0%
Beta-cypermethrin 3.0～4.0%
Emulsifier 9～16%
Methyl alcohol 25-40%
Dimethylbenzene 40～60%
Described emulsifier by three phenethyl APEOs, calcium dodecyl benzene sulfonate, styrene and ethanol by weight 35: 35: 15: 15 are mixed makes.
For further realizing the object of the invention, by weight percentage, during described composition of raw materials was formed, Avermectin was preferably 1.5%, and beta-cypermethrin is preferably 3.75%.
By weight percentage, during described composition of raw materials was formed, Avermectin was preferably 1%, and beta-cypermethrin is preferably 4%.
By weight percentage, during described composition of raw materials was formed, Avermectin was preferably 2%, and beta-cypermethrin is preferably 3%.
The application of the mixed agricultural chemicals of control of maize snout moth's larva:, carry out the field in corn trumpet period, tasseling stage and fringe bud phase and spray the control of maize snout moth's larva with 600～900 times of the mixed agricultural chemicals dilute with waters of control of maize snout moth's larva.
With respect to prior art, of the present invention have a following beneficial effect:
(1) mixed agricultural chemicals provided by the invention overcomes in existing Avermectin and the beta-cypermethrin mixed agent prescription active ingredient dosage and crosses low and not satisfactory to corn borer control efficiency deficiency.When the weight percent content of Avermectin was 1.0～2.0%, the beta-cypermethrin weight percent content was 3.0～4%.600～900 times of dilutions of this mixed agent dilution field sprays, and can reach 86.7%～97.3% to the corn borer control efficiency.
(2) add methyl alcohol in the mixed agricultural chemicals provided by the invention, can significantly reduce the consumption of dimethylbenzene, thereby reduce the pollution of dimethylbenzene environment.
(3) mixed agricultural chemicals formulation provided by the invention is a missible oil, has characteristics such as drug effect height, easy to use and character are stable, makes things convenient for the storage and the transportation of product.
Embodiment
For better understanding the present invention, below in conjunction with embodiment the present invention is done detailed description further, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Embodiment 1
A kind of composition of raw materials of mixed agricultural chemicals of control of maize snout moth's larva consists of:
The composition percentage by weight
Avermectin 1%
Beta-cypermethrin 4%
Emulsifier 10%
Methyl alcohol 25%
Dimethylbenzene 60%
Avermectin, beta-cypermethrin, methyl alcohol and dimethylbenzene are pressed above-mentioned raw materials formulation weight percentage input stir axe, be stirred well to clear, add emulsifier again.This emulsifier by three phenethyl APEOs, calcium dodecyl benzene sulfonate, styrene and ethanol by weight 35: 35: 15: 15 are mixed makes.Stirred 4 hours.Leave standstill the back packing, can obtain product.
The comparative example: with application number is that 200510042921.5 disclosed a kind of insecticides are prescription, with Avermectin, beta-cypermethrin, emulsifier, methyl alcohol, dimethylbenzene with above-mentioned compound method by weight 0.4: 4.6: 10: 25: 60 mixed preparing, make missible oil medicament as a comparison.
Test method: test arrangement carries out in base, academy of agricultural sciences, Guangdong Province, field piece rice cultivation last year, vegetables, and the crop rotation corn, rich water quality management is good, and the milpa growth is dark green.Embodiment 1 product and contrast agents are converted water dilution even spraying by 800 times, respectively spray medicine 1 time, be sprayed onto blade and begin drippage and be degree in corn typhon mouth phase, tasseling stage and fringe bud phase, the about 10-15m of experimental plot length, every processing repeats for 4 times.
Investigation and statistical method: investigation in 20 days after the phase dispenser of fringe bud.100 strain corns are investigated in every sub-district, add up killed strain number, calculate be injured strain rate and control efficiency by following formula.
Result of the test such as table 1: after the dispenser 20 days, embodiment 1 product significantly reduces corn borer caused harm, and control efficiency reaches 86.7%.And the control efficiency of contrast agents obviously is not so good as embodiment 1 product, and control efficiency only is 61.2%.
From active constituent content, the percentage by weight of embodiment 1 product Avermectin is 1%, and the contrast medicament is 0.4%, and the percentage by weight of embodiment 1 product beta-cypermethrin is 4%, and the contrast medicament is 4.6%.On result of use, embodiment 1 product is obviously compared according to the medicament height the control efficiency of corn borer.Even as seen the content of beta-cypermethrin is higher and Avermectin content is lower, also not satisfactory to the control efficiency of corn borer, both have a preferable ratio range.
Table 1
Embodiment 2
A kind of composition of raw materials of mixed agricultural chemicals of control of maize snout moth's larva consists of:
The composition percentage by weight
Ah keeps rhzomorph 1.5%
Beta-cypermethrin 3.75%
Emulsifier 12.75%
Methyl alcohol 30%
Dimethylbenzene 52%
Avermectin, beta-cypermethrin, methyl alcohol and dimethylbenzene are stirred axe by above-mentioned percentage by weight input, be stirred well to clear, drop into emulsifier again.This emulsifier by three phenethyl APEOs, calcium dodecyl benzene sulfonate, styrene and ethanol by weight 35: 35: 15: 15 mixture.Stirred 4 hours.Leave standstill the back packing, can obtain embodiment 2 products.
The comparative example: application number is 02100024.7 disclosed prescription, with Avermectin, beta-cypermethrin, emulsifier, methyl alcohol, dimethylbenzene with above-mentioned compound method by weight 0.4: 1.6: 10: 28: 60 mixed preparing, make missible oil medicament as a comparison.
Test method: test arrangement carries out in white clouds base, academy of agricultural sciences, Guangdong Province, field piece rice cultivation last year, vegetables, and early make the crop rotation corn this year, and rich water quality management is good, and the milpa growth is dark green.Embodiment 2 products are converted water with contrast agents by 1000 times by 900 times dilute even spraying, respectively spray medicine 1 time, be sprayed onto blade and begin drippage for spending the about 10-15m of experimental plot length, 4 repetitions of every processing in corn typhon mouth phase, tasseling stage and fringe bud phase.
Investigation and statistical method: investigation in 20 days after the phase dispenser of fringe bud.100 strain corns are investigated in every sub-district, add up killed strain number, calculate be injured strain rate and control efficiency by following formula.
Result of the test such as table 2: after the dispenser 20 days, embodiment 2 products significantly reduce corn borer caused harm, and control efficiency reaches 93.2%.And the control efficiency of contrast agents obviously is not so good as embodiment 2 products, and control efficiency only is 54.6%.
From active constituent content, the weight percent content of embodiment 2 product Avermectin is 1.5%, and the contrast medicament is 0.4%, and the weight percentage ratio of embodiment 2 product beta-cypermethrins is 3.75%, and the contrast medicament is 1.6%.Illustrate, when Avermectin content is increased to 1.5% from 0.4%, the content of beta-cypermethrin is increased to 3.75% from 1.6%, can obviously improve Ah and keep rhzomorph and beta-cypermethrin mixed agent control efficiency corn borer.As seen beta-cypermethrin and Avermectin content have a preferable ratio range.
Table 2
Embodiment 3
A kind of composition of raw materials of mixed agricultural chemicals of control of maize snout moth's larva consists of:
The composition percentage by weight
Ah keeps rhzomorph 2%
Beta-cypermethrin 3%
Emulsifier 15%
Methyl alcohol 40%
Dimethylbenzene 40%
Avermectin, beta-cypermethrin, methyl alcohol and dimethylbenzene are stirred axe by above-mentioned percentage by weight input, be stirred well to clear, drop into emulsifier again.This emulsifier by three phenethyl APEOs, calcium dodecyl benzene sulfonate, styrene and ethanol by weight 35: 35: 15: 15 mixture.Stirred 4 hours.Leave standstill the back packing, can obtain embodiment 3 products.
The comparative example: with Avermectin, beta-cypermethrin, emulsifier, methyl alcohol, dimethylbenzene with above-mentioned compound method 3: 1.5: 10.5 by weight percentage: 25: 60 mixed preparing, make missible oil medicament as a comparison.
Test method: test arrangement carries out in white clouds base, academy of agricultural sciences, Guangdong Province, field piece rice cultivation last year, vegetables, and early make the crop rotation corn this year, and rich water quality management is good, and the milpa growth is dark green.Embodiment 3 products are also converted water by 600 times by 600 times with contrast agents dilute even spraying, respectively spray medicine 1 time, be sprayed onto blade and begin drippage for spending the about 10-15m of experimental plot length, 4 repetitions of every processing in corn typhon mouth phase, tasseling stage and fringe bud phase.
Investigation and statistical method: investigation in 20 days after the phase dispenser of fringe bud.100 strain corns are investigated in every sub-district, add up killed strain number, calculate be injured strain rate and control efficiency by following formula.
Result of the test such as table 3: after the dispenser 20 days, embodiment 3 products significantly reduce corn borer caused harm, and control efficiency reaches 97.3%.And the control efficiency of contrast agents obviously is not so good as embodiment 3 products, and control efficiency only is 55.8%.
From active constituent content, the weight percent content of embodiment 3 product Avermectin is 2%, and the contrast medicament is 3%, and the weight percent content of embodiment 3 product beta-cypermethrins is 3%, and the contrast medicament only is 1.5%.Beta-cypermethrin content is lower even illustrate that Avermectin content is higher, and is also not satisfactory to the control efficiency of corn borer, needs to increase latter's content.As seen beta-cypermethrin and Avermectin content have a preferable ratio range.
Table 3
Claims (5)
1, a kind of mixed agricultural chemicals of control of maize snout moth's larva is characterized in that: the composition of raw materials of the mixed agricultural chemicals of this control of maize snout moth's larva consists of:
The composition percentage by weight
Avermectin 1.0～2.0%
Beta-cypermethrin 3.0～4.0%
Emulsifier 9～16%
Methyl alcohol 25-40%
Dimethylbenzene 40～60%
Described emulsifier by three phenethyl APEOs, calcium dodecyl benzene sulfonate, styrene and ethanol by weight 35: 35: 15: 15 are mixed makes.
2, the mixed agricultural chemicals of a kind of control of maize snout moth's larva according to claim 1 is characterized in that: by weight percentage, during described composition of raw materials was formed, Avermectin was 1.5%, and beta-cypermethrin is 3.75%.
3, the mixed agricultural chemicals of a kind of control of maize snout moth's larva according to claim 1 is characterized in that: by weight percentage, during described composition of raw materials was formed, Avermectin was 1%, and beta-cypermethrin is 4%.
4, the mixed agricultural chemicals of a kind of control of maize snout moth's larva according to claim 1 is characterized in that: by weight percentage, during described composition of raw materials was formed, Avermectin was 2%, and beta-cypermethrin is 3%.
5, the application of the mixed agricultural chemicals of the described control of maize snout moth's larva of claim 1, it is characterized in that: with 600～900 times of the mixed agricultural chemicals dilute with waters of the described control of maize snout moth's larva of claim 1, carry out the field in corn trumpet period, tasseling stage and fringe bud phase and spray the control of maize snout moth's larva.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126616A (en) * | 2014-08-09 | 2014-11-05 | 桂林桂开生物科技股份有限公司 | Composite abamectin/beta-cypermethrin emulsifiable concentrate plant source biological pesticide |
| CN105145624A (en) * | 2015-08-05 | 2015-12-16 | 丁德凤 | Efficient pesticide |
| CN105638788A (en) * | 2016-02-19 | 2016-06-08 | 滨州禾丰高效生态产业技术开发有限公司 | Special pesticide for corn borers |
| CN105994169A (en) * | 2016-05-31 | 2016-10-12 | 中国农业科学院植物保护研究所 | Method for feeding sesamia inferens by means of tender corn ears |
-
2009
- 2009-08-31 CN CN200910042323A patent/CN101637181A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104126616A (en) * | 2014-08-09 | 2014-11-05 | 桂林桂开生物科技股份有限公司 | Composite abamectin/beta-cypermethrin emulsifiable concentrate plant source biological pesticide |
| CN105145624A (en) * | 2015-08-05 | 2015-12-16 | 丁德凤 | Efficient pesticide |
| CN105638788A (en) * | 2016-02-19 | 2016-06-08 | 滨州禾丰高效生态产业技术开发有限公司 | Special pesticide for corn borers |
| CN105994169A (en) * | 2016-05-31 | 2016-10-12 | 中国农业科学院植物保护研究所 | Method for feeding sesamia inferens by means of tender corn ears |
| CN105994169B (en) * | 2016-05-31 | 2019-04-23 | 中国农业科学院植物保护研究所 | A method of pink rice borer is raised using tucket |
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