CN107751238A - One kind preventing and treating rape flea beetle, stem weevil seed coat agent - Google Patents
One kind preventing and treating rape flea beetle, stem weevil seed coat agent Download PDFInfo
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- CN107751238A CN107751238A CN201711142488.1A CN201711142488A CN107751238A CN 107751238 A CN107751238 A CN 107751238A CN 201711142488 A CN201711142488 A CN 201711142488A CN 107751238 A CN107751238 A CN 107751238A
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- seed coat
- coat agent
- flea beetle
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- stem weevil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/10—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds
- A01N57/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-oxygen bonds or phosphorus-to-sulfur bonds containing heterocyclic radicals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
Abstract
It is more specifically to a kind of to prevent and treat rape flea beetle, the special microemulsion dosage seed coat agent of stem weevil harm the present invention relates to a kind of preparation for Crop seed coating processing；The present invention is a kind of to prevent and treat rape flea beetle, the special microemulsion dosage seed coat agent of stem weevil harm, consists of the following components in percentage by weight：Chlopyrifos 29%~34.3%, ethiprole 3%~5.7%, compound surfactant 18%~22%, cosurfactant 1%~3%, cosolvent 18%~22% and film forming agent 0.4%~0.6% and the water of surplus；Beneficial effects of the present invention：A kind of preventing and treating rape flea beetle of the present invention, the special microemulsion dosage seed coat agent of stem weevil harm have drug effect height, cost is low, environment-friendly, easy to use, ethiprole dosage is few and can delay drug-fast advantage.
Description
Technical field
The present invention relates to a kind of preparation for Crop seed coating processing, more specifically to a kind of preventing and treating rape
Flea beetle, stem weevil seed coat agent.
Background technology
The outburst of rape seedling insect, it is that rape loses one of factor the most serious, therefore, focuses on the anti-of seedling stage insect
The methods of controlling, be the important measures that rape protects production volume increase, typically spraying medicament using dressing seed, the native Reel of processing, field is carried out
Preventing and treating, wherein dressing seed are the effective ways of current preventing and treating seedling stage insect.
Seed coating technology is an agricultural high-tech, can be coated with agricultural chemicals, growth regulator, micro- fertile isoreactivity composition
In the clothing film that the surface of the seed is formed, sprouted in seed with slowly being discharged in growth course, effective prevention and control seedling stage diseases and pests, promote control
Growth of seedling, save kind save medicine, a saving of work and time, economize on resources, reduce environmental pollution, be corresponding seed quality criteria, processing mechanization,
Sowing essence quantifies, cultivates lightness and the important channel increased income and economized on spending.Medicament used in seed pelleting is seed coat agent, and seed coat agent is certainly
From birth, receive many national great attentions, existing nearly 30 countries put into a large amount of manpower and materials researchs, develop and
Using crops seed coating agent.
The resistance problem of insecticide is into the emphasis of the concerns of agricultural chemicals circle plant Bao Jie in recent years, according to relevant information,
Quickly, for the wherein bollworm resistance cruel to the chrysanthemum of cyanogen penta up to 228.2 times, biphenyl chrysanthemum is cruel for pyrethroid vinegar insecticides resistance development
It is minimum, also there are more than 10 times.Other agricultural chemicals also because using resistance is produced to some extent, therefore, studying new desinsection all the year round
Agent and use Compositional type insecticide are effective solution routes.
Ethiprole (Frontline, Fipronil) is a kind of Phenylpyrazole insecticides, and insecticidal spectrum is wide, using stomach poison function as
It is main, have concurrently and tag and certain systemic action, lasting period length, be mainly used in rice, corn, cotton, banana, vegetables, potato, flower
The control of insect of the various crops such as life, beet, rape, tobacco, soybean, but it is slower and right drug effect to be in use present
Very big to honeybee, aquatic toxicity, foliage-spray is unfriendly to environment, and most area limitation uses.
Microemulsion (micro-emulsion, ME) is pesticide active ingredient in emulsifying agent, stabilizer, antifreezing agent, cosolvent
And the transparent or semitransparent homogeneous heat of the oily ﹣ surfactants ﹣ water composition formed in water is dispersed in the presence of solvent
Mechanics stabilising system, is oil-in-water (O/W) type micro emulsion, 0.01~0.1um of particle diameter, less than visible wavelength (400nm).It is micro-
Emulsion has that particle is ultra tiny, stability is good, solubilization is strong, efficient transitivity and promotes to animal vegetable tissue internal penetration
The features such as property；Usually to water ﹣ oil ﹣ surfactant dispersions system, if it is appearance transparent or intimate transparent, mobility
Good homogeneous system, and 5min is centrifuged without separating under 100 times of acceleration of gravity, you can it is considered micro emulsion
Liquid.
Usually containing 60%-90% dimethylbenzene or toluene etc. in missible oil (emulsifiable concentrate, EC) has
Solvent, production cost is higher, and the accidents such as generation burning, blast, poisoning are also easier in production, storage, transportation,
Easily environment is polluted during use, it is higher to animal and plant risk.Microemulsion does not have to or with a small amount of organic molten substantially
Agent, organic solvent is replaced to greatly reduce the influence to environment and people with water.Due to being using water as decentralized medium, so flash-point
Height, nonflammable or do not explode, production accumulating is safe to use；Environmental pollution is few, to the small toxicity of the producer and user；Together
When because microemulsion particle diameter permeability smaller than missible oil it is stronger；There are more preferable wet exhibition, tack, thus medication in crop and polypide surface
Effect is more preferable than missible oil；The processing cost of other microemulsion product is also lower.
Ethiprole is GABA chloride channel inhibitor, is killed by hindering the chloride that insect r- aminobutyric acids control to be metabolized to rise
Worm effect；Chlorpyrifos pesticide is the inhibitor of insect cholinesterase again, and the mechanism of action of two kinds of insecticides differs, by poison
Dead tick insecticide with it is Firponil compounded, there is synergistic effect.
Have in the prior art and 70% ethiprole is made into seed-dispersed seed coat agent and 20% ethiprole suspension seed-coating agent, still
Single not is it is obvious that oil can not be controlled effectively for preventing the effect that rape flea beetle, stem weevil endanger using ethiprole
Dish flea beetle, the harm of stem weevil, and；Also have in the prior art and ethiprole and other insecticides are subjected to compounding use, but all
It is made as spraying use, clear stipulaties ethiprole does not allow to spray agricultural chemicals management rules, missible oil formulation one unfriendly to environment
As be to convert the insecticide of missible oil with water by a certain percentage, then spray, also make missible oil and suspending agent, due to missible oil and outstanding
The reason for agent molecular mass itself is big is floated, seed absorbs not exclusively after seed dressing, uneven in seed dressing process Chinese medicine distribution, breast
The organic solvents such as 60%~90% dimethylbenzene or toluene are usually contained in oil, production cost is higher, and in production, storage, transport
During be also easier to occur burning, blast, poisoning etc. accident, easily environment is polluted in use, to animal and plant wind
Danger is higher, endangers effect all unobvious preventing rape flea beetle, stem weevil.
The content of the invention
The purpose of the present invention is to be directed to above particular problem, the defects of in order to overcome prior art, is made so as to provide one kind
With convenience, good disinsection effect, low in the pollution of the environment, ethiprole dosage is few, cost is low, can resist the resistance to the action of a drug, delays drug-fast anti-
Control rape flea beetle, the special microemulsion dosage seed coat agent of stem weevil harm.
The present invention for solve its technical problem provides it is following use technical scheme, it is a kind of to prevent and treat rape flea beetle, stem weevil kind clothing
Agent, consist of the following components in percentage by weight：Chlopyrifos 29%~34.3%, ethiprole 3%~5.7%, compounding surface are lived
Property agent 18%~22%, cosurfactant 1%~3%, cosolvent 18%~22% and film forming agent 0.4%~0.6% and remaining
The water of amount.
Preferably, described seed coat agent is microemulsion formulation.
Preferably, described compound surfactant is by alkyl phenol ether sulfosuccinic acid ester sodium salt and EO-PO block type tables
The weight ratio of face activating agent composition, alkyl phenol ether sulfosuccinic acid ester sodium salt and EO-PO block-type surfactants is 1~2:5.
Preferably, described cosolvent is the mixture of dimethylbenzene and dimethylformamide, dimethylbenzene and dimethyl formyl
The weight ratio of amine is 2~4:1.
Preferably, described film forming agent is xanthans.
Preferably, described cosurfactant is n-butanol or n-hexyl alcohol.
A kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, comprise the following steps：
Step 1 is mixed compound surfactant and water by formula；
Step 2 adds cosurfactant into step 1, and aqueous phase is made；
Step 3 mixes chlopyrifos and ethiprole with cosolvent, and oil phase is made；
100~150r/min of step 4 stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues to stir after terminating
40~45min, obtain microemulsion；
After step 5 forms microemulsion, 100~130r/min continues to stir, and adds film forming agent and stirs 2~3 minutes, produces
Prevent and treat rape flea beetle, stem weevil seed coat agent.
Preferably, the described seed coat agent is in use, seed coat agent and seed in mass ratio 1:100 mixing.
The beneficial effects of the invention are as follows：For the present invention using the unique mechanism of action of ethiprole, it is that GABA chloride channels suppress
Agent, by hindering the chloride that insect r- aminobutyric acids control to be metabolized to play insecticidal action, chlorpyrifos pesticide is insect again
The inhibitor of cholinesterase, the mechanism of action of two kinds of insecticides differ, compounding use, have synergistic effect；
One kind of the invention prevents and treats rape flea beetle, stem weevil seed coat agent is microemulsion formulation, can after being coated to rape seed
The surface of the seed is coated on directly or after dilution, forms the water-based suspension preparation diaphragm with some strength and permeability, kind
Clothing agent in soil water swelling and be not dissolved, it is allowed to seed normally germination needed for moisture and air pass through contained agriculture
Medicine slowly discharges, while the ethiprole used in the present invention is poisonous to honeybee, it is of the invention then be rape seedling stage use, can't
Threat is produced to honeybee；
Of the invention a kind of preventing and treating rape flea beetle, stem weevil seed coat agent have that drug effect is high, cost is low, environment-friendly, user
Just, ethiprole dosage is few and can delay drug-fast advantage.
Embodiment
Embodiment 1
One kind preventing and treating rape flea beetle, stem weevil seed coat agent, are consisted of the following components in percentage by weight：Chlopyrifos 30%,
Ethiprole 3%, alkyl phenol ether sulfosuccinic acid ester sodium salt 3%, EO-PO block-type surfactants 15%, n-butanol 1.5%,
Dimethylbenzene 13.5%, dimethylformamide 4.5% and xanthans 0.4% and water 29.1%.
A kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, comprise the following steps：
Following constituent content is count by weight percentage
Step 1 is by 3% alkyl phenol ether sulfosuccinic acid ester sodium salt, 15%EO-PO block-type surfactants and 29.1%
Water mixes, and stirs；
Step 2 adds 1.5% n-butanol, referred to as aqueous phase into step 1, standby；
Step 3 is by the mixing of 30% chlopyrifos and 3% ethiprole and dimethylbenzene 13.5% and dimethylformamide 4.5%
Liquid mixes, referred to as oil phase, standby；
Step 4 100r/min stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues to stir after terminating
40min, obtain microemulsion；
After step 5 forms microemulsion, 100r/min continues to stir, and adds 0.4% xanthans and stirs 2 minutes, produces preventing and treating
Rape flea beetle, stem weevil seed coat agent.
Embodiment 2
One kind preventing and treating rape flea beetle, stem weevil seed coat agent, are consisted of the following components in percentage by weight：Chlopyrifos 30%,
Ethiprole 5%, alkyl phenol ether sulfosuccinic acid ester sodium salt 4%, EO-PO block-type surfactants 16%, n-butanol 2%, two
Toluene 15%, dimethylformamide 5% and xanthans 0.5% and water 22.5%.
A kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, comprise the following steps：
Following constituent content is count by weight percentage
Step 1 is by 4% alkyl phenol ether sulfosuccinic acid ester sodium salt, 16%EO-PO block-type surfactants and 22.5%
Water mixes, and stirs；
Step 2 adds 2% n-butanol, referred to as aqueous phase into step 1, standby；
Step 3 mixes the mixed liquor of 30% chlopyrifos and 5% ethiprole and dimethylbenzene 15% and dimethylformamide 5%
Close, referred to as oil phase, it is standby；
Step 4 120r/min stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues to stir after terminating
43min, obtain microemulsion；
After step 5 forms microemulsion, 110r/min continues to stir, and adds 0.5% xanthans and stirs 3 minutes, produces preventing and treating
Rape flea beetle, stem weevil seed coat agent.
Embodiment 3
One kind preventing and treating rape flea beetle, stem weevil seed coat agent, are consisted of the following components in percentage by weight：Chlopyrifos
34.3%th, ethiprole 5.7%, alkyl phenol ether sulfosuccinic acid ester sodium salt 6.3%, EO-PO block-type surfactants 15.7%,
N-hexyl alcohol 2.5%, dimethylbenzene 17.6%, dimethylformamide 4.4% and xanthans 0.6% and water 12.9%.
A kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, comprise the following steps：
Following constituent content is count by weight percentage
Step 1 by 4.4% alkyl phenol ether sulfosuccinic acid ester sodium salt, 17.6%EO-PO block-type surfactants and
12.9% water mixes, and stirs；
Step 2 adds 2.5% n-hexyl alcohol, referred to as aqueous phase into step 1, standby；
Step 3 is by 34.3% chlopyrifos and 5.7% ethiprole and dimethylbenzene 17.6% and dimethylformamide 4.4%
Mixed liquor mixes, referred to as oil phase, standby；
Step 4 150r/min stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues to stir after terminating
45min, obtain microemulsion；
After step 5 forms microemulsion, 130r/min continues to stir, and adds 0.6% xanthans and stirs 2 minutes, produces preventing and treating
Rape flea beetle, stem weevil seed coat agent.
A kind of preventing and treating rape flea beetle of embodiment 4, the quality standard of stem weevil seed coat agent
According to ethiprole, the produce reality of chlopyrifos physicochemical property and the country and the matter with reference to some domestic microemulsions
Figureofmerit, has formulated a kind of preventing and treating rape flea beetle, stem weevil seed coat agent quality index, and detailed index situation is shown in Table 1.
A kind of preventing and treating rape flea beetle of table 1, the quality standard of stem weevil seed coat agent
A kind of preventing and treating rape flea beetle of embodiment 5, stem weevil seed coat agent are to the Toxicity Determination to rape flea beetle, stem weevil
For formation testing dish flea beetle adult with picking up from tested by Qinghai Academy of Agriculture and Forestry Sciences's spring rape, collection Individual Size it is consistent,
The adult of health.
For examination Rape stem weevil adult with picking up from tested by Qinghai Academy of Agriculture and Forestry Sciences's spring rape, Individual Size one is gathered
Cause, the adult of health.
Toxicity test experiment to rape flea beetle is diluted with water to series concentration using infusion process, by reagent agent, is placed on
In beaker, one week of emergence is chosen, rape is in the Brassica Napus Seedling of a leaf phase, impregnated 35 seconds in decoction, each treatment agent
Each concentration is repeated 4 times, and control is used as using clear water.It is put into after processing in plastics insect box, it is consistent, strong to be put into Individual Size per box
The adult of health 50, is subsequently placed in 25 DEG C of illumination box and raises, and result is checked after 48h, records life or death borer population, institute's total
According to through computer software processing, toxicity regression formula, LC are obtained50And virulence multiple.
Toxicity test experiment to Rape stem weevil adult is diluted with water to serial dense using infusion process, by reagent agent
Degree, is placed in beaker, chooses the Brassica campestris L seedling that rape is in squaring period, is impregnated 35 seconds in decoction, each each concentration for the treatment of agent
It is repeated 4 times, control is used as using clear water.It is put into after processing in plastics insect box, the adult that Individual Size is consistent, healthy is put into per box
20, it is subsequently placed in 25 DEG C of illumination box and raises, result is checked after 48h, record life or death borer population, the data obtained is computed
Machine software processing, obtain toxicity regression formula, LC50And virulence multiple.
Toxicity test of the insecticide of table 2 to flea beetle Qinghai academy of agricultural sciences population adult
From table 2, thimet is comparison medicament；Microemulsion dosage seed coat agent of the present invention, 20% Frontline suspension seed-coating agent,
40% phoxim emulsifiable concentrate, 48% chlorpyrifos ec, 60% thimet missible oil, 50% Benfuracard micro suspension seed-coating agent, 70% thiophene
The relative virus force index of the dispersible seed coat agent of worm piperazine is respectively 20.3,5.2,2.3,2.1,1.0,0.8,0.5；Microemulsion of the present invention
Type seed coat agent is 3.6 times of 20% Frontline suspension seed-coating agent to the insecticidal activity of flea beetle adult, is 40% phoxim emulsifiable concentrate
8.1 times, be 34.4 times of 48% chlorpyrifos ec, is 20.3 times of 60% thimet missible oil；It can be seen that microemulsion dosage kind of the present invention
Clothing agent, 20% Frontline suspension seed-coating agent, 40% phoxim emulsifiable concentrate are still higher to the virulence of flea beetle adult；50% rosickyite gram
Budweiser suspension seed-coating agent and the dispersible seed coat agent of 70% Diacloden are relatively less better.
Toxicity test of the insecticide of table 3 to Rape stem weevil Qinghai academy of agricultural sciences population adult
From table 3：Thimet is comparison medicament；Microemulsion dosage seed coat agent of the present invention, 20% Frontline suspension seed-coating agent,
40% phoxim emulsifiable concentrate, 48% chlorpyrifos ec, 60% thimet missible oil, 50% Benfuracard micro suspension seed-coating agent, 70% thiophene
The relative virus force index of the dispersible seed coat agent of worm piperazine is respectively 3.1,2.5,1.7,1.1,1.0,0.6,0.3；Microemulsion of the present invention
Type seed coat agent is 40% phoxim emulsifiable concentrate to 1.24 times that the insecticidal activity of stem weevil adult is 20% Frontline suspension seed-coating agent
1.86 times, be 2.8 times of 48% chlorpyrifos ec, be 3.1 times of 60% thimet missible oil；It can be seen that microemulsion dosage of the present invention
Seed coat agent is still higher to the virulence of Rape stem weevil adult；50% Benfuracard micro suspension seed-coating agent, 70% Diacloden can
Scattered seed coat agent is relatively less better.
A kind of preventing and treating rape flea beetle of embodiment 6, stem weevil seed coat agent are to the field control effectiveness test to rape flea beetle, stem weevil
Field control effectiveness test is carried out tested by Qinghai Academy of Agriculture and Forestry Sciences's spring rape, and rape variety is blue or green miscellaneous No. 7, should
Rape is planted on ground throughout the year, and soil property is chestnut soil, and flea beetle occurs year after year, and insect density is larger.Set respectively before rape seed：The present invention
Microemulsion dosage seed coat agent, 60% thimet missible oil, 48% chlorpyrifos ec, 20% ethiprole (Frontline) suspending agent seed coat agent,
50% Benfuracard micro suspension seed-coating agent, 40% phoxim emulsifiable concentrate, 70% Diacloden seed treatment dispersible pulvis, grain weight 1/
100 dosage seed pelleting (missible oil seed dressing), is sowed after drying.
Per 67 square metres of plot area, cell random alignment, each processing is repeated 4 times.
Rape flea beetle Occurrence situations：10 days after rape emergence, the grade scale endangered rape flea beetle and computational methods,
Investigate the hazard index of Brassica Napus Seedling.
Cause harm classification of the rape flea flea beetle of table 4 to Brassica campestris L seedling
Hazard index DI (%)=∑ (s × n)/(N × S) × 100
In formula：
DI --- rape flea beetle hazard index；
S --- each hazard level (such as numerical value 0-4)；
N --- the strain number of corresponding each hazard level；
N --- investigation total strain number；
S --- highest hazard level number；
Rape stem weevil Occurrence situations：In rape peduncle-growing period for rapeseed, using the point sampling of diagonal 5,5 sampling points are taken to enter per cell
Row investigation, per the ㎡ of the sampling point 0.25 record aggrieved strain numbers of sampling point, calculate aggrieved rate.
Field control effectiveness test result of the insecticide of table 5 to rape flea beetle adult
Field control effectiveness test shows：The pharmaceutical quantities coating of seed coat agent (dressing seed) grain weight 1/100 (is mixed before rape seed
Kind), 10 days after rape emergence, field investigation Brassica Napus Seedling Harm.Microemulsion dosage seed coat agent of the present invention is kept a full stand of seedings best, field
Brassica Napus Seedling rape flea beetle hazard index is below 10% in 2 years, compared with blank control preventive effect up to more than 80%, compared with Generally used
60% thimet missible oil dresses seed preventive effect up to 66.8%；Composite chemical efficiency test result is seen：Microemulsion dosage seed coat agent of the present invention is
The effect of rape area preventing and treating rape flea beetle is better than other medicaments.
Field control effectiveness test result of the insecticide of table 6 to Rape stem weevil adult
Continuous 2 years field control effectiveness tests show：The medicament of seed coat agent (dressing seed) grain weight 1/100 before rape seed
Amount coating (seed dressing), 30 days after rape emergence, rape squaring period investigation Brassica campestris L seedling endangers strain rate；Microemulsion dosage seed coat agent of the present invention
Keep a full stand of seedings best, field Rape stem weevil endangers strain rate and is below 10% in 2 years, compared with blank control preventive effect up to more than 80%, is relatively accustomed to
The thimet missible oil of medication 60% dresses seed preventive effect up to 73.8%.Comprehensive 2 years pharmacy control efficacy result of the tests are seen：Microemulsion dosage of the present invention
Seed coat agent is also the excellent seed coat agent of rape area preventing and treating Rape stem weevil harm.
A kind of rape flea beetle, the stem weevil seed coat agent prevented and treated of embodiment 7 is to the field demonstration experiment to rape flea beetle, stem weevil
Field demonstration is carried out in Huzhu County, Qinghai Province Weiyuan town Zhuo Zhatan, Di Yao villages of Huangzhong County great Yuan townshiies, Danma Huzhu Weiyuan
The rape variety of town Zhuo Zha beaches plantation is blue or green miscellaneous No. 11, and the rape variety of Di Yao villages of Huangzhong County great Yuan townshiies plantation is blue or green miscellaneous No. 7.Show
Average annual 500 mu of model area Danma Huzhu Weiyuan town Zhuo Zha beaches 2, Di Yao villages of Huangzhong County great Yuan townshiies demonstration area 2 years are 200 mu.Two
Regional plantation rape throughout the year, equal 2600 meters of height above sea level, soil property is chestnut soil, and flea beetle occurs year after year, and insect density is larger.
Used respectively before rape seed：Microemulsion dosage seed coat agent (demonstration) of the present invention, 70% Diacloden seed treatment are dispersible
2 mu of pulvis (control) cultivated area, the dosage seed pelleting of grain weight 1/100, is sowed after drying.
Field demonstration rape flea beetle Occurrence situations：10 days after rape emergence, with reference to the classification mark to the harm of rape flea beetle
Accurate and computational methods, investigate the hazard index of Brassica Napus Seedling.
Investigation method is investigated with reference to the method for field control effectiveness test.
Field demonstration Rape stem weevil Occurrence situations：In rape peduncle-growing period for rapeseed, using the point sampling of diagonal 5,5 are taken per cell
Individual sampling point is investigated, and per the ㎡ of the sampling point 0.25 record aggrieved strain numbers of sampling point, calculates aggrieved rate.
Field demonstration result of the microemulsion dosage seed coat agent of the present invention of table 7 to rape flea beetle adult
Different regions large-scale demonstration result shows；30 sampling points microemulsion dosage seed coat agent seed pelleting of the present invention is to rape
The preventive effect of flea beetle harm reaches more than 70%, and indivedual sampling points reach 90%, hence it is evident that better than the dispersible seed coat agent of 70% Diacloden.
Field demonstration result of the microemulsion dosage seed coat agent of the present invention to preventing and treating Rape stem weevil harm
Demonstration ground and the model field of preventing and treating flea beetle harm are same field, in rape squaring period, are a sampling point by every 50 mu
Selection represents plot.5 point samplings are used per plot, take 5 sample prescriptions, per the ㎡ of sample prescription sample area 1, investigate aggrieved plant in sample prescription
Strain number, calculate aggrieved strain rate.It the results are shown in Table 8.
Field demonstration result of the microemulsion dosage seed coat agent of the present invention of table 8 to rape flea beetle adult
The continuous 2 years large-scale demonstration results in different regions show；30 sampling points microemulsion dosage seed coat agent rape seed of the present invention
The preventive effect that attached bag clothing is endangered Rape stem weevil reaches more than 70%, and indivedual sampling points reach 90%, hence it is evident that better than 70% thiophene worm
The dispersible seed coat agent of piperazine.
Embodiment 8 makees creaming agent type by the microemulsion dosage of the present invention and using the chlopyrifos of same dosage, ethiprole
Contrast experiment
The present invention：One kind preventing and treating rape flea beetle, stem weevil seed coat agent, are consisted of the following components in percentage by weight：Poison with poison
Tick 30%, ethiprole 5%, alkyl phenol ether sulfosuccinic acid ester sodium salt 4%, EO-PO block-type surfactants 16%, n-butanol
2%th, dimethylbenzene 15%, dimethylformamide 5% and xanthans 0.5%, water 22.5%.
A kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, comprise the following steps：
Step 1 is by 4% alkyl phenol ether sulfosuccinic acid ester sodium salt, 16%EO-PO block-type surfactants and 22.5%
Water mixes, and stirs；
Step 2 adds 2% n-butanol, referred to as aqueous phase into step 1, standby；
Step 3 mixes the mixed liquor of 30% chlopyrifos and 5% ethiprole and dimethylbenzene 15% and dimethylformamide 5%
Close, referred to as oil phase, it is standby；
Step 4 120r/min stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues to stir after terminating
43min, obtain microemulsion；
After step 5 forms microemulsion, 130r/min continues to stir, and adds 0.5% xanthans and stirs 3 minutes, produces preventing and treating
Rape flea beetle, stem weevil seed coat agent.
According to seed coat agent and seed in mass ratio 1:100 mixing, are coated to seed.
Comparative example：
Chlopyrifos 30%, ethiprole 5%, bleeding agent are azone 2%, the dense newborn 0204A8% of emulsifying agent and solvent diformazan
Benzene is mended to 100%, and chlopyrifos, ethiprole, bleeding agent, emulsifying agent and solvent are sequentially added, each component is stirred.
According to seed coat agent and seed in mass ratio 1:100 mixing, are coated to seed.
Field control effectiveness test is carried out tested by Qinghai Academy of Agriculture and Forestry Sciences's spring rape, and rape variety is blue or green miscellaneous No. 7, should
Rape is planted on ground throughout the year, and soil property is chestnut soil, and flea beetle occurs year after year, and insect density is larger.Set respectively before rape seed：Use this
Seed is coated the microemulsion of invention and the missible oil using comparative example, the dosage seed pelleting (missible oil of grain weight 1/100
Seed dressing), sowed after drying.
Per 67 square metres of plot area, cell random alignment, each processing is repeated 4 times.
Rape flea beetle Occurrence situations：10 days after rape emergence, the grade scale endangered rape flea beetle and computational methods,
Investigate the hazard index of Brassica Napus Seedling.
Rape stem weevil Occurrence situations：In rape peduncle-growing period for rapeseed, using the point sampling of diagonal 5,5 sampling points are taken to enter per cell
Row investigation, per the ㎡ of the sampling point 0.25 record aggrieved strain numbers of sampling point, calculate aggrieved rate.
Field control effectiveness test result of the insecticide of table 9 to rape flea beetle adult
Field control effectiveness test shows：The pharmaceutical quantities coating of seed coat agent (dressing seed) grain weight 1/100 (is mixed before rape seed
Kind), 10 days after rape emergence, field investigation Brassica Napus Seedling Harm.Microemulsion dosage seed coat agent of the present invention is kept a full stand of seedings best, field
Brassica Napus Seedling rape flea beetle hazard index is below 10% in 2 years, compared with blank control preventive effect up to more than 80%, compared with the breast of comparative example
Oil seed dressing preventive effect is up to 76.6%；Composite chemical efficiency test result is seen：Microemulsion dosage seed coat agent of the present invention is rape area preventing and treating oil
The effect of dish flea beetle is dressed seed better than the missible oil of ratio.
Field control effectiveness test result of the insecticide of table 10 to Rape stem weevil adult
Continuous 2 years field control effectiveness tests show：The medicament of seed coat agent (dressing seed) grain weight 1/100 before rape seed
Amount coating (seed dressing), 30 days after rape emergence, rape squaring period investigation Brassica campestris L seedling endangers strain rate；Microemulsion dosage seed coat agent of the present invention
To keep a full stand of seedings best, field Rape stem weevil endangers strain rate and is below 10% in 2 years, compared with blank control preventive effect up to more than 80%, comparative example
Missible oil dress seed preventive effect up to 76.8%.Comprehensive 2 years pharmacy control efficacy result of the tests are seen：Microemulsion dosage seed coat agent of the present invention is also oil
The excellent seed coat agent of vegetable-growing area preventing and treating Rape stem weevil harm.
Conventionally, it is generally to need to be watered to be sprayed for the missible oil formulation of insecticide, but agricultural chemicals pipe
Clear stipulaties ethiprole does not allow to spray manage bar example, so just being dressed seed with missible oil, 60%~90% 2 is usually contained in missible oil
The organic solvent such as toluene or toluene, dosage is very big, is not suitable for large-scale production and uses, and production cost is higher, and in life
Also it is easier to that the accidents such as burning, blast, poisoning occur in production, storage, transportation, dirt easily is caused to environment in use
Dye, higher to animal and plant risk, a kind of preventing and treating rape flea beetle, stem weevil seed coat agent in the present invention have also used diformazan
The mixture of benzene and dimethylformamide is as cosolvent, but dosage is very few, only the 18%~22% of gross mass, together
When due to being coated using microemulsion dosage to seed, and good to the tack of seed, usage amount is very few, the general mu of rape
The amount of broadcasting 400g coating agent dosages only need 5~10ml, at the same in the experiment more than by using same dosage chlopyrifos and
Ethiprole, missible oil seed dressing will be significantly better than by making the drug effect of microemulsion coating, be due to microemulsion particle diameter permeability smaller than missible oil
It is stronger, there are more preferable wet exhibition, tack in crop and polypide surface, thus medication effect is more preferable than missible oil, microemulsion produces in addition
The processing cost of product is also lower.
Claims (8)
1. one kind preventing and treating rape flea beetle, stem weevil seed coat agent, it is characterised in that：Consist of the following components in percentage by weight：Poison
Dead tick 29%~34.3%, ethiprole 3%~5.7%, compound surfactant 18%~22%, cosurfactant 1%~
3%th, cosolvent 18%~22% and film forming agent 0.4%~0.6% and the water of surplus.
2. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：Described kind clothing
Agent is microemulsion formulation.
3. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：Described compounding
Surfactant is made up of alkyl phenol ether sulfosuccinic acid ester sodium salt and EO-PO block-type surfactants, alkyl phenol ether sulfo group
The weight of succinate sodium salt and EO-PO block-type surfactants ratio is 1~2:5.
4. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：Described hydrotropy
Agent is the mixture of dimethylbenzene and dimethylformamide, and the weight ratio of dimethylbenzene and dimethylformamide is 2~4:1.
5. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：Described film forming
Agent is xanthans.
6. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：Described helps table
Face activating agent is n-butanol or n-hexyl alcohol.
7. a kind of preventing and treating rape flea beetle, the preparation method of stem weevil seed coat agent, it is characterised in that comprise the following steps：
Step 1 is mixed compound surfactant and water by formula；
Step 2 adds cosurfactant into step 1, and aqueous phase is made；
Step 3 mixes chlopyrifos and ethiprole with cosolvent, and oil phase is made；
100~150r/min of step 4 stirs aqueous phase, and oil phase is added in aqueous phase, and oil phase addition continues stirring 40 after terminating
~45min, obtains microemulsion；
After step 5 forms microemulsion, 100~130r/min continues to stir, and adds film forming agent and stirs 2~3 minutes, produces preventing and treating
Rape flea beetle, stem weevil seed coat agent.
8. a kind of preventing and treating rape flea beetle according to claim 1, stem weevil seed coat agent, it is characterised in that：The seed coat agent makes
Used time, seed coat agent and seed in mass ratio 1:100 mixing.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101243790A (en) * | 2008-03-10 | 2008-08-20 | 龚洵胜 | Insecticidal composition for preventing and controlling rice water weevil, uses thereof and method for producing aqueous emulsion |
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2017
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| CN101288409A (en) * | 2007-04-21 | 2008-10-22 | 孔波 | Fipronil, chlopyrifos and production method thereof |
| CN101243790A (en) * | 2008-03-10 | 2008-08-20 | 龚洵胜 | Insecticidal composition for preventing and controlling rice water weevil, uses thereof and method for producing aqueous emulsion |
| CN103271082A (en) * | 2013-06-19 | 2013-09-04 | 北京燕化永乐农药有限公司 | Insect killing composition |
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