CN105265472A - Pesticide composition containing tefluthrin and iprodione - Google Patents
Pesticide composition containing tefluthrin and iprodione Download PDFInfo
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- CN105265472A CN105265472A CN201510677536.1A CN201510677536A CN105265472A CN 105265472 A CN105265472 A CN 105265472A CN 201510677536 A CN201510677536 A CN 201510677536A CN 105265472 A CN105265472 A CN 105265472A
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Abstract
The invention discloses pesticide composition containing tefluthrin and iprodione. Effective ingredients of the pesticide composition comprise tefluthrin and iprodione, a weight ratio of tefluthrin to iprodione is 1:10-10:1, and the content of tefluthrin and iprodione accounts for 3%-95% of the total weight of the composition. A suspension, water dispersible granules, an emulsion in water, a microemulsion, wettable powder and granules can be prepared from the pesticide composition added with an auxiliary, the pesticide composition has excellent control effect on soil insects such as nematodes, grubs, mole crickets, cutworms and the like, the problem of multiple soil pests of crops can be solved simultaneously through one-time pesticide application, the application dosage of the pesticide is reduced obviously, and the environment pollution is reduced.
Description
Technical field
The present invention relates to agricultural insecticide nematicidal composition and application thereof, specifically with tefluthrin and iprodione for the composite binary complex of active ingredient, be applied to the soil insects such as control nematode, grub, mole cricket, cutworm.
Background technology
Tefluthrin, English name: tefluthrin, tefluthrin is pyrethroid insecticides, act on the nervous system of insect, tag very capable, the Lepidoptera that can prevent and treat coleoptera well and perch in soil and some Diptera pest, have good control efficiency to soil insects such as grub, mole cricket, cutworms.
Iprodione, English name: iprodione, iprodione is contact bactericide, has good bactericidal effect to fungies such as Botrytis, neurospora, Sclerotinia, bulbil genus, also effective to fungies such as Alternaria, the mould genus of compacted spore, silk core genus, Fusarium, volt leather genus.Research finds that the activity of iprodione to root-knot nematode and ovum is very high, and to the various crop safety such as melon, banana, green onion, ginger and garlic, Solanaceae, vegetables.
Nematode is the common agricultural disease of a class, and host range is extensive, 30 various crop such as melon, the solanaceous vegetables of often causing harm, beans and radish, lettuce, Chinese cabbage, ginger, green onion, garlic, banana.Common are root-knot nematode, often cause plant root to form the root knot of enlargement, can not normal absorption nutrient, cause plant withered and yellow or dead, some fungus and bacterium venereal diseases evil can also be propagated simultaneously.The main component of current control nematode is fosthiazate and Avermectin, fosthiazate excellent effect but with high costs, and the Avermectin lasting period is shorter.Therefore, take the ovum of iprodione to nematode to tag, can effectively prevent nematode from breeding, reduce the extent of injury of nematode, extend the lasting period, solve the problem of eelworm harm from cost and effect two aspect.
Grub, mole cricket and cutworm etc. are common soil insects.Its growth time is long, heavy, harm is heavy.This type of soil insect often bites plants stems base portion broken at crops seedling stage, causes plant to be short of seedling disconnected ridge.The serious time occurs to be occurred dropping in production over a large area, and even having no harvest, is the important potential threat affecting output.
Different pesticide species composition carries out composite, is the common methods of the agriculture resistant insect of control and time and labour saving.The present inventor is on the basis of a large amount of indoor virulences and field medicine effect test, the compounded formula screening of tefluthrin and iprodione is conducted in-depth research, find that tefluthrin and iprodione carry out composite, in certain proportion, there is obvious synergistic function, and to soil insects such as root-knot nematode, grub, mole cricket, cutworms, there is outstanding control efficiency, after further study, the present invention is completed.
Summary of the invention
The object of the present invention is to provide a kind of compound synergic composition pesticide containing tefluthrin and iprodione, be applied to the soil insects such as control nematode, grub, mole cricket, cutworm.
Technical scheme: a kind of composition pesticide containing tefluthrin and iprodione, with tefluthrin and iprodione for active ingredient, the weight ratio of tefluthrin and iprodione is 1:10 ~ 10:1, tefluthrin and the percentage by weight of iprodione weight summation in composition pesticide are 3% ~ 95%, and all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Composition pesticide of the present invention can be prepared into any one formulation being applicable to agriculturally using by known method, reasonable formulation has suspending agent, water dispersible granules, aqueous emulsion, microemulsion, wetting powder, granule.
The auxiliary element used in the present composition comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc., and to be of value to active ingredient stable and play the known substance of drug effect in the formulation, be all various compositions that are conventional in pesticidal preparations or permission use, concrete composition and consumption are determined by test according to recipe requirements.
The frequency of administration of the present composition and amount of application change with crops, insect, weather condition and have small variations, can by the object using suitable dosage reach effectively control.
Compared with prior art, the invention has the advantages that:
1, tefluthrin and iprodione have beyond thought synergistic function, are used alone the control efficiency that improve insect than single dose;
2, tefluthrin and the iprodione mechanism of action different, mixed can delay insect and the drug-fast generation of germ;
3, tefluthrin and iprodione two kinds of active ingredients composite, expand insecticidal spectrum, a drug just can solve soil insect simultaneously, decreases Pesticide use amount, reduces use cost and alleviates pollution to environment.
Embodiment
In order to understand essence of the present invention better, below in conjunction with embodiment, content of the present invention is described further, but can not limitation of the present invention be considered as.
Embodiment 1: described composition pesticide is suspending agent, and each component percentages is respectively:
Concrete operation step is: first mixed by other auxiliary agent, in clipper, shear-mixed is even, then adds effective constituents A and active ingredient B, in ball crusher, grinds 2-3h, make a diameter all at below 5mm, composition pesticide aqueous suspension formulations of the present invention can be obtained.
Embodiment 2: described composition pesticide is aqueous emulsion, and each component percentages is respectively:
Concrete operation step is: first effective constituents A and active ingredient B, solvent, emulsifier are mixed, and dissolves and becomes uniform oil phase.Again part water and other auxiliary agents are mixed, dissolve and become uniform aqueous phase.Then oil phase is added aqueous phase while high-speed stirred in a kettle., slowly add water to and reach phase inversion point, carry out high speed shear afterwards, and add remaining water, shear about 30min, composition pesticide aqueous emulsion preparation of the present invention can be obtained.
Embodiment 3: described composition pesticide is microemulsion, and each component percentages is respectively:
Concrete operation step is: effective constituents A and active ingredient B solvent and cosolvent are dissolved completely, and then add other auxiliary agent, mix, finally add water, after fully stirring, can obtain composition pesticide microemulsion formulation of the present invention.
Embodiment 4: described composition pesticide is wetting powder, and each component percentages is respectively:
Concrete operation step is: by effective constituents A and the mixing of active ingredient B, other auxiliary agent and filler, fully stir, mix, can obtain composition pesticide wettable powder formulation of the present invention after airslide disintegrating mill is pulverized in stirred tank.
Embodiment 5: described composition pesticide is water dispersible granules, and each component percentages is respectively:
Concrete operation step is: effective constituents A and active ingredient B, other auxiliary agent and filler are mixed, pulverize with micro jet, add after mediating after carrying out granulation, drying, screening in fluidized-bed granulation dryer, composition pesticide water-dispersible grain agent formulation of the present invention can be obtained.
Embodiment 6: described composition pesticide is granule, and each component percentages is respectively:
Concrete operation step is: above-mentioned effective constituents A and active ingredient B, auxiliary agent are mediated through mixing and water adding, uses pinch-out granulator pinch out and be shaped, afterwards by particle fluid-bed drying, screening, can obtain composition pesticide granular preparation of the present invention.
In above formulation, auxiliary agent is selected from the following stated:
Solvent can be trimethylbenzene, durene, methyl naphthalene, methyl oleate, fatty acid methyl ester, loose base oil, soybean oil, biodiesel, 2-butyl acetate, dimethyl carbonate, diesel oil, white oil, machine oil, etc. in one or more.
Emulsifier can be calcium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer, dibenzyl xenyl APEO, phenethyl phenol polyethenoxy ether, castor oil polyoxyethylene ether, phenethyl fluosite APEO, phenethyl phenol polyoxyethylene polyoxypropylene ether, alkylaryl polyoxyethylene polyoxypropylene ether, phenethyl phenol formaldehyde resin APEO, Sorbitan fatty acid ester, sorbitan fatty acid ester APEO, natural fatty alcohol and ethylene oxide adduct, fatty acid and ethylene oxide condensate, one or more in polyoxyethylene fatty acid ester etc.
Wetting agent can be one or more in sodium butylnaphthalenesulfonate, lauryl sodium sulfate, aliphatic alcohol polyethenoxy (6-7) ether, aerosol-OT salt, MorwetEFW, alkylnaphthalene sulfonate etc.
Disintegrant can be one or more in sodium bicarbonate, magnesium chloride, aluminium chloride, sodium chloride, urea, ammonium sulfate, bentonite etc.
Dispersant can be the formaldehyde condensation products of methyl naphthalene sulfonic acid sodium, sodium lignin sulfonate, calcium lignosulfonate, to methoxyl group fatty acyl anilinesulfonic acid, desugar one or more in the sodium lignin sulfonate of classification, naphthalene sulfonic acid condensate sodium salt, alkyl naphthalene sulfonic acid condensation polymer sodium salt, alkylphenol polyoxyethylene formaldehyde condensation products sulfuric acid etc.
Thickener can be one or more in xanthans, aluminium-magnesium silicate, bentonite, white carbon etc.
PH adjusting agent can be one or more in ammonium hydroxide, potassium hydroxide, sodium hydroxide, hydrochloric acid, acetic acid, citric acid, phosphoric acid etc.
Stabilizing agent can be one or more in epoxidized soybean oil, epoxychloropropane, butylated hydroxy anisole, dibutyl hydroxy toluene, n-propyl gallate, ditert-butylhydro quinone etc.
Defoamer can be one or more in silicone compound, methyl alcohol, silicone oil etc.
Antifreezing agent can be one or more in glycerine, ethylene glycol, propane diols, sorbierite, polyethylene glycol etc.
Carrier can be one or more in kaolin, diatomite, bentonite, white carbon, precipitated calcium carbonate, attapulgite, clay, talcum powder, quartz sand, starch, APG etc.
Embodiment 7: tefluthrin and iprodione are to the indoor joint toxicity measuring of root-knot nematode, cutworm.
Test medicine adopts the former medicine of 96% tefluthrin and the former medicine of 95% iprodione.
Root-knot nematode soil insect system pick up from Tang Jiao village, Li Lin town, Huizhou for many years root-knot nematode there is serious watermelon field, the watermelon old complaint of morbidity is taken back laboratory for subsequent use.
Survey standard method NY/T1833.1-2009 with reference to raw, adopt dip method.Nematode suspension preparation: the pieces of an egg of picking root-knot nematode from the watermelon root of morbidity, by sterile water wash, at 20-25 DEG C, hatching obtains consistent second instar larvae, with sterile water, nematode suspension concentration is adjusted to every milliliter about 300, for subsequent use.From low concentration to high concentration, draw liquid 3mL successively with pipettor to add respectively in test tube, then draw the equivalent nematode suspension 3mL prepared and add in test tube, make liquid and nematode suspension mixed in equal amounts even.Pipette the above-mentioned mixed liquor of 2mL in the Xiao Sun of many grandsons biochemical test plate with pipettor, add a cover, in 25 DEG C of constant temperature culture 24h.Often process 4 times repeat, and establish not containing liquid process in contrast.
Cutworm be pick up from Tang Jiao village, Li Lin town, Huizhou for many years cutworm there is serious Peanut Fields.
Survey standard method NY/1154.6-2006T with reference to raw, adopt dip method.On the basis of preliminary experiment, two single doses are made into 5 series mass concentration with the Tween 80 water dissolved dilution of 0.1% respectively, are respectively placed in 250ml beaker.Take out after ready cutworm second instar larvae being flooded 10 seconds in liquid with leaching worm cage, unnecessary liquid is sucked with blotting paper, carry out mark, raise respectively, testing in temperature 26 ± 1 DEG C, photoperiod 16L:8D, relative moisture is carry out in the bio-incubator of 50 ± 5%.Each concentration process repeats for 4 times, often repeats 15 examination worms.And establish not containing liquid process in contrast.
Statistical analysis is carried out, by calculating the LC of each medicament with DPS statistical analysis software
50evaluate the insecticidal activity of each medicament, and calculate the co-toxicity coefficient (CTC value) of mixture according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent LC
50/ reagent agent LC
50) × 100.
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B.
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
According to the NY/T11547.7-2006 desinsection synergy criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Or with reference to Huang Guoyang chief editor " pesticide test technology and evaluation method ", adopt equivalent comparison method: to the LC of target when medicament is alone
50value, with the LC be added with in medicament to target after synergist
50pH-value determination pH out, if be added with the LC of synergist in medicament
50be worth more alone than medicament little, just indicate synergistic effect.Its synergy size, represents with synergy index:
Usually, synergy index is greater than 1 expression synergistic effect, is less than 1 for antagonism, is summation action between equaling 1.
As can be seen from Table 1 and Table 2, tefluthrin and iprodione composite in the scope of 1:10 ~ 10:1 time, co-toxicity coefficient (CTC) is all greater than 120, and synergy index is all greater than 1, all shows synergistic function to the soil insect such as root-knot nematode and cutworm.Visible tefluthrin and iprodione have reasonability and feasibility.
Table 1, tefluthrin and iprodione are to the indoor joint toxicity measuring result of root-knot nematode worm's ovum.
Table 2, tefluthrin and iprodione are to the indoor joint toxicity measuring result of cutworm.
Embodiment 8: tefluthrin and iprodione are to the field control effectiveness test of watermelon root-knot.
Test site is positioned at watermelon garden, Compounds in Dongfang City of Hainan Province.In root-knot nematode harm Sheng phase dispenser, adopt pouring method and soil treatment method.The process such as liquor, pulvis is watered when watermelon root-knot is fallen ill fills with root use, and granule then needs to spread fertilizer over the fields before the field planting of watermelon seedling.Adopt 0.5% tefluthrin granule, 50% iprodione wettable powder medicament in contrast, 8 chemicals treatment are established in test altogether, and each process repeats for 3 times.Manage cornerwise five of district before dispenser throughout and select investigation watermelon seedling trouble nematodosis radix, often some investigation 10 strain watermelons.Within after dispenser 7 days, 30 days, 50 days, respectively investigate a control efficiency, nematode diseased plant number suffered from record, and calculate control efficiency, result of the test is as shown in table 3.
Table 3, tefluthrin and iprodione mixture prevent and treat the result of the test of root-knot nematode.
All to use apparently higher than the tefluthrin granule single dose same period 0.5% preventive effect of root-knot nematode after tefluthrin and iprodione 7d, 30d, 50d as can be seen from Table 3 and 50% iprodione wettable powder single dose uses, illustrate that tefluthrin and iprodione can improve preventive effect to root-knot nematode compared with being used alone with two kinds of single doses, after medicine, 50d preventive effect still reaches more than 90% simultaneously, illustrate to have good lasting effect, duration of test does not find that this compound drug produces poisoning to watermelon.
Embodiment 9: tefluthrin and iprodione are to peanut grub, mole cricket, cutworm field control effectiveness test.
Test site is positioned at Li Lin town, Huizhou Peanut Fields.In soil insect harm Sheng phase dispensers such as grub, mole cricket, cutworms, adopt pouring method and soil treatment method.The process such as liquor, pulvis is watered spraying or fills with root and uses when finding peanut soil pest, granule then needs to spread fertilizer over the fields before peanut seeding.Adopt 0.5% tefluthrin granule, 50% iprodione wettable powder medicament in contrast, 8 chemicals treatment are established in test altogether, and each process repeats for 3 times.After dispenser, each investigation in 7 days, 30 days, 50 days once records emergence rate, and calculate control efficiency, result of the test is as shown in table 4.
The result of the test of table 4, tefluthrin and iprodione control of grubs, mole cricket, cutworm.
All to use apparently higher than the tefluthrin granule single dose same period 0.5% preventive effect of the soil insects such as grub, mole cricket, cutworm after tefluthrin and iprodione 7d, 30d, 50d as can be seen from Table 4 and 50% iprodione wettable powder single dose uses, illustrate that tefluthrin and iprodione can improve preventive effect to soil insects such as grub, mole cricket, cutworms compared with being used alone with two kinds of single doses, after medicine, 50d preventive effect still reaches more than 70% simultaneously, illustrate to have good lasting effect, duration of test does not find that this compound drug produces poisoning to peanut.
In sum, the present invention adopts two kinds of active components to be the complex composition of tefluthrin and iprodione, compared with existing unitary agent, not only there is obvious synergistic effect, also there is good desinsection and kill nematode effect, lasting period is long, to Crop securify, can slow down the generation of pest resistance to insecticide, a drug just can solve different soil insect problems, time and labour saving, is worth applying in agricultural production.
Claims (3)
1. contain a composition pesticide for tefluthrin and iprodione, it is characterized in that: active ingredient is tefluthrin and iprodione, the weight ratio of tefluthrin and iprodione is 1:10 ~ 10:1; Tefluthrin and iprodione gross weight percentage composition is in the composition 3% ~ 95%.
2. a kind of composition pesticide containing tefluthrin and iprodione according to claim 1, is characterized in that: the formulation of described composition pesticide is the one in suspending agent, water dispersible granules, aqueous emulsion, microemulsion, wetting powder, granule.
3. a kind of application of composition pesticide control nematode, grub, mole cricket, cutworm soil insect containing tefluthrin and iprodione according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510677536.1A CN105265472A (en) | 2015-10-18 | 2015-10-18 | Pesticide composition containing tefluthrin and iprodione |
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| CN201510677536.1A CN105265472A (en) | 2015-10-18 | 2015-10-18 | Pesticide composition containing tefluthrin and iprodione |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325445A (en) * | 2009-02-20 | 2012-01-18 | 迪帕克·普让嘉文达斯·沙 | A kind of novel water-dispersible particulate composition |
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- 2015-10-18 CN CN201510677536.1A patent/CN105265472A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325445A (en) * | 2009-02-20 | 2012-01-18 | 迪帕克·普让嘉文达斯·沙 | A kind of novel water-dispersible particulate composition |
Non-Patent Citations (1)
| Title |
|---|
| 孙元峰等: "《作物种子•病虫害防治技术》", 30 September 2008, 中原出版传媒集团、中原农民出版社 * |
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Application publication date: 20160127 |
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