CN102696615A - Insecticidal composition containing etofenprex - Google Patents

Insecticidal composition containing etofenprex Download PDF

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Publication number
CN102696615A
CN102696615A CN2012101417268A CN201210141726A CN102696615A CN 102696615 A CN102696615 A CN 102696615A CN 2012101417268 A CN2012101417268 A CN 2012101417268A CN 201210141726 A CN201210141726 A CN 201210141726A CN 102696615 A CN102696615 A CN 102696615A
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China
Prior art keywords
chrysanthemum ester
ether chrysanthemum
worm nitrile
pesticidal combination
insecticidal composition
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CN2012101417268A
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Chinese (zh)
Inventor
李文明
吴秀华
庞婷婷
尹仕兵
马伦冬
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Anhui Huaxing Chemical Co Ltd
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Anhui Huaxing Chemical Co Ltd
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Priority to CN2012101417268A priority Critical patent/CN102696615A/en
Publication of CN102696615A publication Critical patent/CN102696615A/en
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Abstract

The invention provides an insecticidal composition containing etofenprex. The insecticidal composition consists of active ingredients and an auxiliary. The active ingredients comprise the etofenprex and ethiprole, wherein the weight ratio between the etofenprex and the ethiprole is (1-40): (1-40). The usage amount per mu is obviously less than the usage amount of every single dose, the usage amount per mu of the insecticidal composition is reduced by 5-15 g, the cotoxicity coefficient of the insecticidal composition is in a range between 222.52 and 385.19 and is larger than 120, the insecticidal composition has obvious synergy and durative efficacy and is environment-friendly and free from cross resistance, and crops are safe.

Description

A kind of Pesticidal combination that contains ether chrysanthemum ester
Technical field
The invention belongs to technical field of pesticide, relate in particular to a kind of Pesticidal combination that contains ether chrysanthemum ester.
 
Background technology
Paddy rice is one of staple food crop of China; According to statistics, the rice growing area accounts for the total sowing area 20% of national crops, and rice yield accounts for 39.23% of total grain output; Rice is the staple food of about 60% population in the whole nation, so the very important influence of the increase and decrease tool of rice yield.But all the time, all kinds of insect pests such as snout moth's larva, rice fulgorid etc. have had a strong impact on the output of paddy rice, and according to investigations, piece its rice yield in damaged by vermin field loses generally 10~20%, serious loss 40~50%.
The Pesticidal products of control rice grub mainly is to prolong desinsection list, the dimehypo of having used decades at present, and because of it has in use produced resistance, control efficiency difference and also harmful to silkworm has received certain restriction so use; Using maximum in recent years is the fluorine worm nitrile control snout moth's larva of rice; But because of it has excessive risk to shell-fish aquatile and honeybee; It is slow in water and soil earth, to degrade, big to environmental hazard, so The Ministry of Agriculture of the People's Republic of China, MOA forbids strictly registration and the use of fluorine worm nitrile on the paddy field.The Ministry of Industry and Information Technology also puts into effect the policy of halting all emulsifiable concentrates for agricultural chemicals productions and application.So it is future development emphasis that exploitation low toxicity, low-residual and being applied to prevented and treated the agricultural chemicals of crop pests such as paddy rice, vegetables.
Pyrethroid pesticide also has good control efficiency to rice grub, but its most of kind is poisonous to honeybee, has also limited its application on paddy field, and at present, ether chrysanthemum ester is the unique pyrethroid pesticide that on paddy rice, uses of state approval.Ether chrysanthemum ester (english common name ethofenprox, molecular formula C 25H 28O 3), its mode of action is to suppress the Na of the current potential door on the neural axon film +Passage has that insecticidal spectrum is wide, insecticidal activity is high, knocks down that speed is fast, the lasting period is long, less to natural enemy lethality such as paddy field spiders, to advantages such as crop safeties.
Because single use of insecticide, insect is easy to generate pesticide resistance, causes control efficiency not good, causes the single drug amount sharply to increase, and has not only increased use cost and contaminated environment.Now people a kind ofly can reduce usage amount and improve the mixed insecticide of control efficiency seeking.
 
Summary of the invention
The object of the invention will solve above-mentioned deficiency exactly, and a kind of good disinsection effect is provided, is difficult for producing resistance, and environment amenable insecticides.
In order to achieve the above object; The present invention provides a kind of Pesticidal combination that contains ether chrysanthemum ester; Said Pesticidal combination is made up of effective ingredient and adjuvant, and said effective ingredient is ether chrysanthemum ester and second worm nitrile, and said ether chrysanthemum ester and second worm nitrile weight ratio are 1~40:1~40.
The preferred version of such scheme is that said ether chrysanthemum ester and second worm nitrile weight ratio are 3~20:3~40, especially preferably 5~10:10~20.
Said adjuvant comprises surfactant, filler and auxiliary agent.
Said Pesticidal combination is mixed with suspending agent, wetting powder.
Said Pesticidal combination is used to prevent and treat paddy rice, vegetable crop insect.
(English name: Ethiprole, molecular formula: be the novel pyrazole insecticides C13H9Cl2F3N4OS), insecticidal spectrum is wide for second worm nitrile among the present invention.Its mechanism of action is to disturb chloride channel through GABA (GABA); Thereby destroying central nervous system (CNS) normal activity causes death insect; And be different from the main insecticide mechanisms of action such as pyrethroid, organic phosphor, carbamate, so this medicine does not produce the chance of cross resistance with the existing insecticide of majority, be the desirable reserve kind of resistance management; Row is mixed in the time of can be with other agricultural chemicals, is used alternatingly.In addition, this medical instrument has very high selection toxicity, and is tightr to the white clothing constraint comparison vertebrate of insect GABA chloride channel.
Must comprise also in the insecticides of the present invention that surfactant, filler and auxiliary agent and effective ingredient are prepared into preparation and just can be applied on the target crop and be used for desinsection.
Wherein, described surfactant is APES, AEO, phenethyl phenol polyethenoxy ether, phenethyl phenol polyethenoxy polyethenoxy ether, castor oil ethylene oxide adduct, APES formaldehyde condensation products, APES phosphate, phenethyl phenol polyethenoxy ether phosphate, benzylphenol APEO, polyoxyethylene carboxylate, calcium dodecyl benzene sulfonate, neopelex, lignosulfonates, NNO, NO, MF, ZS-1, lauryl sodium sulfate, draws back powder, N-methyl fatty acyl group sodium taurocholate, APES formaldehyde condensation products sulphate, the withered powder of tea, saponin, lignosulfite, aliphatic alcohol sulfate, penetrant t, bleeding agent OT, JFC, fatty acid amide-N-N-methyltaurine sodium salt, sodium sulfate of polyethenoxy ether of fatty alcohol, draws back powder.
Said filler and auxiliary agent can be any addible components, are mixed with each application target final products with active constituent ether chrysanthemum ester, second worm nitrile, like the preparation of suspending agent, wetting powder, water dispersible granules or other formulations.Be mainly used in primary pest snout moth's larva, rice fulgorid etc. on the control paddy rice, can also be as the insects such as beet armyworm on the control vegetable crop.Its preventive effect is higher than single preventive effect with ether chrysanthemum ester or second worm nitrile, and can reduce auxiliary dosage.
Certainly, the present invention can also include other functional aids such as antifreeze, thickener, stabilizing agent, antifoaming agent, disintegrant.
More than various surfactants, filler and auxiliary agent etc. all can on market, buy.
The processing technology of the various preparations of the present composition and equipment are known.Processing like suspending agent is by formula rate, after pesticide activity component, surfactant, antifoaming agent, thickener or the filler of capacity and part water are mixed, through high speed shear, the wet method sand milling, semi-finished product, add water after the analysis and mix to filter and get product; Capital equipment is that batching still, colloid mill or even matter mixer, sand mill are arranged.The processing of wetting powder is that pesticide activity component, auxiliary agent, filler are mixed the mixed again wetting powder that gets behind comminution by gas stream in proportion; Capital equipment has mixer, airslide disintegrating mill.
The present composition can be used by commonsense method, as adds water spray and make cauline leaf and handle, and also can directly spread fertilizer over the fields.Amount of application of the present invention changes with weather condition and crop state, can prevent and treat purpose through using suitable formulation to reach.
The invention has the beneficial effects as follows:
1, ether chrysanthemum ester is different fully to the mechanism of action of target pest with second worm nitrile, with the two composite insecticides of making, has notable synergistic effect and lasting effect; Co-toxicity coefficient formula according to Sun Yunpei is calculated, and the co-toxicity coefficient of the insecticides that each proportioning of ether chrysanthemum ester and second worm nitrile is formed is 222.52~385.19, all is far longer than 120, and it has obvious synergistic effect.Show according to field demonstration test result, insecticides of the present invention to the medicine of rice hoppers after 7 days preventive effect be 92.45%, 14 days preventive effect is 94.58% behind the medicine; To 7 days preventive effect behind the medicine of vegetables beet armyworm is 93.16%, and 14 days preventive effect is 96.32% behind the medicine.
2, show that according to field demonstration test result the mu usage amount of the insecticides that the present invention prepares obviously is less than each single agent dosage, few 5~15 grams of mu consumption; Ether chrysanthemum ester and second worm nitrile are composite to be alleviated various lethality like natural enemies such as spiders, and to crop safety;
3, the present invention mainly is processed as suspending agent, wetting powder, and its product and formulation are all environmentally friendly;
4, because the special mechanism of action of second worm nitrile is different from the main insecticide mechanisms of action such as pyrethroid, organic phosphor, carbamate, can not produce cross resistance so second worm nitrile and ether chrysanthemum ester are composite.
 
Embodiment
The present invention is elaborated with following specific embodiment, but the present invention only limits to these examples absolutely not, and percentage all is weight percentage in all prescriptions.
One, pharmaceutical formulation example
1, each composition of 15% suspending agent formula is as follows:
Ether chrysanthemum ester 10%, second worm nitrile 5%, aryl phenol polyoxyethylene ether phosphate 5%, calcium lignosulfonate 2%, xanthans 0.2%, card pine 0.1%, aluminium-magnesium silicate 1.0%, propane diols 5%, antifoaming agent 0.2%, water is mended to 100%.
2, each composition of 20% suspending agent formula is as follows:
Ether chrysanthemum ester 10%, second worm nitrile 10%, aryl phenol polyoxyethylene ether phosphate 6%, sodium lignin sulfonate 2%, xanthans 0.15%, Sodium Benzoate 0.1%, aluminium-magnesium silicate 1.5%, ethylene glycol 5%, antifoaming agent 0.2%, water is mended to 100%.
3,25% wetting powder: ether chrysanthemum ester 20%, second worm nitrile 5%.
4,15% wetting powder: ether chrysanthemum ester 5%, second worm nitrile 10%.
5,12.3% suspending agent: ether chrysanthemum ester 0.3%, second worm nitrile 12%.
6,16.4% suspending agent: ether chrysanthemum ester 16%, second worm nitrile 0.4%.
7,30% wetting powder: ether chrysanthemum ester 10%, second worm nitrile 20%.
Two, co-toxicity coefficient experiment
In order to prevent and treat the rice fulgorid in the agricultural production, the inventor has carried out mutual composite synergy research with second worm nitrile, ether chrysanthemum ester effective active components.It is tested object that rice hoppers is adopted in test, and concrete grammar is:
1 test medicine second worm nitrile, ether chrysanthemum ester are mixed with former medicine the test medicine that needs by technology department of Anhui Huaxing Chemical Co., Ltd..
2 supply the examination targets: the examination worm is that the water rice seedling is raised many generations in the rice fulgorid (brown planthopper Nilaparvata lugens) greenhouse that picks up from the field in, chooses healthy growth, tritonymph of the same size supplies to give birth to test and tests usefulness.
3 dosage settings and test repetition
Carry out preliminary experiment earlier, preliminary confirm to have guided paddy rice brown planthopper lethality, by Geometric Sequence 5 series concentration are set then at 10% and 90% confession reagent agent concentration.Every concentration repeats 3 times, and every to repeat to supply the examination borer population be 20.Each proportioning is measured LC 50After, respectively with the LC of ether chrysanthemum ester, second worm nitrile 50, press the co-toxicity coefficient formula of Sun Yunpei, calculate the co-toxicity coefficient of each group.
4 test methods
The rice stem infusion process that test adopts plant protection institute of Agricultural University Of Nanjing to provide is measured.Prepare preparation before the test, the preparation for preparing is made into mother liquor, then mother liquor is diluted to 5 series concentration by doubly measuring dilution method.Get the rice strain at later stage to the booting initial stage of tillering of healthy and strong unanimity, clean root, be cut into the long band root rice stem of 10cm; One group of 3 strain are soaked 30s respectively after drying in the soup of variable concentrations, dry after the taking-up; Encase root with the absorbent cotton that soaks and put into the cultivation cup, connect worm fully.Select nymph in 3 age is placed and cultivates in the cup, 20 every glass.Connect and to cultivate cup behind the worm to put into temperature be 27 ± 1 ℃, photoperiod=16h:8h (illumination: raise in incubator dark).
5 data statistics and analysis
Handle back 96h investigation examination worm death condition, write down total borer population and dead borer population.
According to survey data, calculate lethality and corrected mortality that each is handled.Use the DPS data analysis system, calculate the LC of each medicament 50And 95% confidence limit.
The co-toxicity coefficient of mixture (CTC value) calculates by following formula:
ATI=?S/?M×100
In the formula: ATI---mixture actual measurement toxicity index
S---standard insecticide LC 50, unit is every liter (mg/L) of milligram;
The LC of M---mixture 50, unit is every liter (mg/L) of milligram;
TTI=TI A×P A+TI B×P B
In the formula: TTI---the theoretical toxicity index of mixture
TI A---A medicament toxicity index
P A---the percentage composition of A medicament in mixture, unit are percentage (%)
TI B---B medicament toxicity index
P B---the percentage composition of B medicament in mixture, unit are percentage (%)
CTC=?ATI/?TTI×100
In the formula: CTC---co-toxicity coefficient
ATI---mixture actual measurement toxicity index
The theoretical toxicity index of TTI---mixture
The co-toxicity coefficient of complex preparation (CTC)>=120 shows as synergistic effect; CTC≤80 show as antagonism, and 80<CTC<120 show as summation action.
Get 1 pair of brown planthopper of formulation Example and carry out Toxicity Determination, its result sees table one:
Table one: 15% second worm nitrile ether chrysanthemum ester suspending agent is to brown planthopper Toxicity Determination result
Above-mentionedly find out that 15% second worm nitrile ether chrysanthemum ester SC lacks than second worm nitrile and ether chrysanthemum ester list agent consumption; Under identical test concentration, 15% second worm nitrile ether chrysanthemum ester SC is higher than the desinsection lethality of second worm nitrile and the agent of ether chrysanthemum ester list.
 
According to the co-toxicity coefficient formula of Sun Yunpei, the second worm nitrile+ether chrysanthemum ester that records under each proportioning is seen table two to the co-toxicity coefficient of rice hoppers:
Table two: second worm nitrile+ether chrysanthemum ester is to the co-toxicity coefficient of rice hoppers
Medicament LC50(mg/L) Actual measurement toxicity index (ATI) Theoretical toxicity index (TTI) Co-toxicity coefficient (CTC)
The former medicine of second worm nitrile 30.42 100 / /
The former medicine of ether chrysanthemum ester 58.40 52.09 / /
Second worm nitrile: ether chrysanthemum ester (5:10) 24.36 124.88 49.07 254.49
Second worm nitrile: ether chrysanthemum ester (10:10) 26.96 112.83 44.41 254.06
Second worm nitrile: ether chrysanthemum ester (3:40) 23.16 131.35 56.45 232.68
Second worm nitrile: ether chrysanthemum ester (5:20) 25.12 ? 121.10 52.80 229.36
Second worm nitrile: ether chrysanthemum ester (20:3) 23.96 126.96 32.96 385.19
Second worm nitrile: ether chrysanthemum ester (20:40) 27.86 109.19 49.07 222.52
Can find out that from last table second worm nitrile and ether chrysanthemum ester carry out composite in 3~20:3~40 ratios, the co-toxicity coefficient of respectively organizing of calculating according to the co-toxicity coefficient formula of Sun Yunpei is 222.52~385.19, all exceeds 120 far away, and it has obvious synergistic effect.
 
Three, field demonstration test
1,15% suspending agent (second worm nitrile 5%, ether chrysanthemum ester 10%) control paddy rice brown planthopper test.
The test of pesticide effectiveness is established 3 processing altogether, and each handles repetition 4 times.By the mu consumption is that 100 grams per liter second worm nitrile suspending agents are by 30 grams and 10% ether chrysanthemum ester suspending agent, 40 grams and 15% second worm nitrile ether chrysanthemum ester suspending agent, 30 grams; Water dilutes even spraying for 50 kilograms respectively; Behind medicine, got at 5 in every processing sub-district respectively in 7 days and 14 and investigate, its concrete control efficiency is seen table three.
Table three: 15% second worm nitrile ether chrysanthemum ester suspending agent control paddy rice brown planthopper effect
Can find out from last table; 7 days preventive effect is 92.45% behind the medicine of 15% second worm nitrile ether chrysanthemum ester suspending agent; 14 days preventive effect is 94.58% behind the medicine; And 7 days preventive effect is respectively 86.05% and 89.09% behind the medicine of 100 grams per liter second worm nitrile suspending agents and 10% ether chrysanthemum ester suspending agent, and 14 days preventive effect is respectively 88.81% and 87.23% behind the medicine.So the preventive effect of 15% second worm nitrile ether chrysanthemum ester suspending agent obviously is superior to the preventive effect of each single agent, and the effective ingredient consumption obviously reduces, to crop safety.
 
2, the test of 20% suspending agent (second worm nitrile 10%, ether chrysanthemum ester 10%) control vegetables beet armyworm.
The test of pesticide effectiveness is established 3 processing altogether, and each handles repetition 4 times.By the mu consumption is that 100 grams per liter second worm nitrile suspending agents are by 30 grams and 10% ether chrysanthemum ester suspending agent, 40 grams and 20% second worm nitrile ether chrysanthemum ester suspending agent, 25 grams; Water dilutes even spraying for 50 kilograms respectively; Behind medicine, got at 5 in every processing sub-district respectively in 7 days and 14 and investigate, its concrete control efficiency is seen table four.
Table four: 20% second worm nitrile ether chrysanthemum ester suspending agent control vegetables beet armyworm effect
Can find out that from last table 7 days preventive effect is 93.16% behind the medicine of 20% second worm nitrile ether chrysanthemum ester suspending agent, 14 days preventive effect is 96.32% behind the medicine; And 7 days preventive effect is respectively 83.21% and 89.45% behind the medicine of 100 grams per liter second worm nitrile suspending agents and 10% ether chrysanthemum ester suspending agent, and 14 days preventive effect is respectively 87.15% and 86.03% behind the medicine.So the preventive effect of 20% second worm nitrile ether chrysanthemum ester suspending agent obviously is superior to the preventive effect of each single agent, and the effective ingredient consumption obviously reduces, to crop safety.
Above embodiment is not limited only to protection scope of the present invention, and all are based on basic thought of the present invention and all belonging in protection scope of the present invention of making amendment or change.

Claims (6)

1. Pesticidal combination that contains ether chrysanthemum ester, it is characterized in that: said Pesticidal combination is made up of effective ingredient and adjuvant, and said effective ingredient is ether chrysanthemum ester and second worm nitrile, and said ether chrysanthemum ester and second worm nitrile weight ratio are 1~40:1~40.
2. according to the said Pesticidal combination of claim 1, it is characterized in that: said ether chrysanthemum ester and second worm nitrile weight ratio are 3~20:3~40.
3. according to the said Pesticidal combination of claim 1, it is characterized in that: said ether chrysanthemum ester and second worm nitrile weight ratio are 5~10:10~20.
4. according to the said Pesticidal combination of claim 1, it is characterized in that: said adjuvant comprises surfactant, filler and auxiliary agent.
5. according to the said Pesticidal combination of claim 1, it is characterized in that: said Pesticidal combination is mixed with suspending agent, wetting powder.
6. according to described each Pesticidal combination of claim 1-4, it is characterized in that: said Pesticidal combination is used to prevent and treat paddy rice, vegetable crop insect.
CN2012101417268A 2012-05-09 2012-05-09 Insecticidal composition containing etofenprex Pending CN102696615A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103651377A (en) * 2012-09-04 2014-03-26 南京华洲药业有限公司 Compound pesticidal composition containing ethiprole and ethofenprox and application thereof
JP2020007238A (en) * 2018-07-04 2020-01-16 株式会社大阪製薬 Animal pest control composition

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888778A (en) * 2007-12-05 2010-11-17 拜耳作物科学股份公司 Pesticidal compound mixtures

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888778A (en) * 2007-12-05 2010-11-17 拜耳作物科学股份公司 Pesticidal compound mixtures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103651377A (en) * 2012-09-04 2014-03-26 南京华洲药业有限公司 Compound pesticidal composition containing ethiprole and ethofenprox and application thereof
JP2020007238A (en) * 2018-07-04 2020-01-16 株式会社大阪製薬 Animal pest control composition

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Application publication date: 20121003