CN102113509B - Insecticidal composition containing bifenthrin and emamectin benzoate - Google Patents
Insecticidal composition containing bifenthrin and emamectin benzoate Download PDFInfo
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- CN102113509B CN102113509B CN 201110075438 CN201110075438A CN102113509B CN 102113509 B CN102113509 B CN 102113509B CN 201110075438 CN201110075438 CN 201110075438 CN 201110075438 A CN201110075438 A CN 201110075438A CN 102113509 B CN102113509 B CN 102113509B
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- biphenthrin
- pesticidal combination
- emamectin benzoate
- bifenthrin
- insecticidal composition
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Abstract
The invention relates to a synergistic insecticidal composition in the field of pesticides, which comprises the following active ingredients: bifenthrin and emamectin benzoate. The content ratio of the bifenthrin to the emamectin benzoate in a compound preparation is 1-50: 50-1. The compound pesticide is used for controlling lepidoptera, homoptera, diptera and other pests in crops, and can be prepared into emulsifiable solution, suspension concentrate, emulsion in water, wettable powder, water dispersible granules, microemulsion and other formulations by utilizing the methods which are known by those skilled in the art.
Description
Invention field:
The present invention relates to a kind of Synergistic insecticidal compositions of agricultural chemicals, its active ingredient is Biphenthrin and emamectin-benzoate.
Background technology:
Biphenthrin, Chinese chemical name: (1R, S)-cis (Z) 2,2-dimethyl-3-(2-chloro-3,3,3-three fluoro-1-acrylic) cyclopropane-carboxylic acid-2-methyl-3-phenyl benzyl ester.Belong to the pyrethroid Insecticidal and acaricidal agent.Have tag, stomach poison function, without interior suction, fumigation action, insecticidal spectrum is wide, effect rapidly.Not mobile in soil, safer to environment, the longevity of residure is longer.Be applicable to prevent and treat on the crops such as cotton, fruit tree, vegetables, tealeaves the insects such as lepidopterous larvae, aleyrodid, aphid, leaf miner, leafhopper, tetranychid, evil mite.For worm, when mite is concurrent, province's medicine saves time.But Biphenthrin belongs to medium toxic pesticides, to fish and the high poison of silkworm, and honeybee poisoning, and resistance is comparatively general, the fruits and vegetables residual quantity exceeds standard because unreasonable use causes in extension process.
In use need reasonably use and composite to reduce its usage amount, increase the control efficiency for insect.
Emamectin-benzoate (hereinafter to be referred as first dimension salt), it is a kind of new and effective semisynthetic antibiotics insecticide that begins to synthesize from the fermented product AVERMECTIN B1, it has super-high-efficient, low toxicity (preparation is closely nontoxic), low-residual, the nuisanceless characteristics that wait biopesticide, with Avermectin at first insecticidal activity improved 3 orders of magnitude, active high to the larva of lepidopterous insects and other many insects, existing stomach poison function is double action of contace poison again, (has good effect under 0.084 ~ 2g/ha) at low-down dosage, and in the process of pest control, beneficial insect is not injured, be conducive to the integrated control to insect, enlarged in addition insecticidal spectrum, reduced the toxicity to people and animals.First dimension salt can strengthen neurotic effect such as glutamic acid and γ one aminobutyric acid (GABA), thereby make a large amount of chlorions enter nerve cell, make the cell function forfeiture, upset nerve conduction, larva stops feed at once afterwards in contact, irreversible paralysis occurs, and reaches the highest lethality rate in 3-4 days.Since it and soil in conjunction with closely, leaching not, in environment, do not accumulate yet, can shift by the Translaminar motion, very easily absorbed by crops and be penetrated into epidermis, make the dispenser crop that long-term residual effect be arranged, occurring again second desinsection lethality rate peak more than 10 days, affected by environmental factor such as wind, rain etc. simultaneously.
First dimension salt in use passes through a large amount of clinical discoveries, adds pyrethrin pesticide when using first dimension salt and can improve quick-acting, and the interval result of use is better within the vegetative period of crop.
Summary of the invention:
Based on above situation, the object of the present invention is to provide a kind of agricultural insecticide composition, this Pesticidal combination is characterized in that tieing up salt (B) as active ingredient is mixed take Biphenthrin (A) and first, prevents the various pests of crops.
Pesticidal combination of the present invention is characterized in that the mass ratio of effective constituents A and B is 1～50: 50～1.
Pesticidal combination of the present invention is characterized in that through the toxicity test experiment, the mass ratio of effective constituents A and B is preferably 1～20: 20～1.
The formulation that described Pesticidal combination of the present invention can be prepared according to the known method of those skilled in the art of the present technique is the formulations such as missible oil, aqueous emulsion, suspending agent, wetting powder, water dispersible granules, microemulsion.
Described Biphenthrin and the gross mass content of first dimension salt in preparation are 1 ~ 50%, preferred 1% ~ 30%.
Pesticidal combination of the present invention has very significantly synergistic effect, can reduce effective ingredient consumption, delays the generation of pest resistance to insecticide, and can be used for the improvement of resistant insect.Be particularly suitable for diptera, Homoptera and Lepidoptera class pest for control vegetables and fruit.Pesticide dosage is low, is difficult for causing residual exceeding standard, and also has simultaneously the low characteristics of toxicity, is conducive to environmental protection and production non-polluted farm product.
Embodiment:
Biphenthrin and the different proportioning co-toxicities of first dimension salt
1.1 reagent agent
The former medicine of 96% Biphenthrin, the former medicine of 75% first dimension salt, above-mentioned former medicine provides by Qingdao Hailir Pesticides and Chemical Co., Ltd..
1.2 for examination worm source
Indoor Turnip Sprouts are raised the third-instar larvae of the diamond-back moth in 10 generations, temperature (25 ± 2) continuously
oC, relative moisture 50% ± 4%, periodicity of illumination 1 4/1 0 h (L/D).
1.3 single dose assay method
Adopt dip method that two former medicines are all used a small amount of acetone solution, be diluted to into again 5 dense solution of equal difference with 0.1% Tween solution, be diluted in the beaker with for subsequent use, and with clear water in contrast.With of the same size three age diamondback moth larvae in the liquid that soaks the worm cage, flood 5S, be placed in the culture dish that diameter is 9 c m after sucking unnecessary liquid, be placed with fresh cabbage leaves in the ware and add a cover.Every concentration is processed 10, repeats 4 times.If blank.Keep in (27 ± 1) ℃ illumination box checking lethality behind the 24h that it is dead touching the polypide nonresponder with pulling needle.Lethality Abbott formula correction, again according to the concentration logarithm---the lethality probit value is analyzed (Bliss) method, obtains virulence regression equation and puts dead middle amount LC
50Value.
1.4 the joint toxicity measuring method of different proportionings
According to the toxicity test result of single dose, be 5% quality than Biphenthrin by active ingredient: first dimension salt is respectively 1: 4,2: 3,2.5: 2.5,3:2,4:1.Adopt above-mentioned 1.3 methods to carry out toxicity test, calculate LC
50, and press the abundant method of Sun Yun and calculate co-toxicity coefficient (CTC).Co-toxicity coefficient CTC, computing formula is as follows: (take Biphenthrin as the standard medicament, its toxicity index is 100):
The LC of the toxicity index of pleocidin (TI)=Biphenthrin
50The LC of/first dimension salt
50* 100
The LC of the actual toxicity index (ATI) of M=Biphenthrin
50The LC of/M
50* 100
The TI of the TI of the theoretical toxicity index (TTI) of M=Biphenthrin * P Biphenthrin+first dimension salt * P first dimension salt
The TTI of the ATI/M of the co-toxicity coefficient of M (CTC)=M * 100
In the formula:
M is the mixture that Biphenthrin and first are tieed up the different proportionings of salt amine
P first dimension salt is first dimension salt shared ratio in mixture
The P Biphenthrin is Biphenthrin shared ratio in mixture
1.5 toxicity test result
The indoor measurement result of table 1 Biphenthrin, first dimension salt pair diamond-back moth
As can be seen from the table, in being mixed of different proportion, its co-toxicity coefficient shows certain synergistic effect, wherein Biphenthrin all greater than 120: first dimension salt is that the synergistic effect of 3:2 is the most obvious, and co-toxicity coefficient is 198.84.Result of the test shows, Biphenthrin, two kinds of medicaments of first dimension salt all have higher activity to diamond-back moth under indoor conditions, the result of the test of different proportion proportioning shows, by the active ingredient Biphenthrin: first dimension salt is 1: 4,2: 3,2.5: 2.5, when 3:2,4:1, all show stronger synergistic effect, wherein take Biphenthrin: when first was tieed up salt as 7:3, synergistic effect was best.
2 field trials control diamond-back moth, beet armyworm.
2.1 field experiment control diamond-back moth
2.1 test method
2.1.1 application method
Test is sprayed medicine 1 time altogether, and the dispenser date is July 3.This moment, a variety of Chinese cabbage had 5-6 sheet leaf.The diamondback moth larvae major part was in for 2～3 length of times.Weather is cloudy calm during the spray medicine.With the agricultural board level pressure of profit knapsack hand sprayer each is processed even spraying, leave dual sides all requires to be sprayed with the effect liquid.Every residential quarter liquid 2L.
2.1.2 investigation method
Investigate each residential quarter and fix 15 strain a variety of Chinese cabbages as the investigation strain. record the larva quantity on whole blades.Investigate the insect population radix before spraying medicine, respectively 3,7 days and investigation in 10 days borer population alive behind the spray medicine.This test is investigated 4 times altogether.
2.1.3 drug effect computational methods
Borer population * l00 lives before insect population decline rate (%)=(borer population of living after the borer population-dispenser of living before the dispenser)/dispenser
Preventive effect (%)=(treatment region insect population decline rate-check plot insect population decline rate)/(100-check plot insect population decline rate) * 100
2.1.4 poisoning investigation method
Continuous 10d range estimation medicament does not have poisoning to produce to crop after the dispenser, and Growth of Cabbage is good.
2.2 field control effectiveness test result
Table 2 treatment agent control diamond-back moth field control effectiveness test result
As can be seen from Table 2, the Mixed Pharmacy of different proportion, carry out field experiment by different consumptions, its control efficiency to the wild cabbage diamond-back moth all is better than contrasting medicament behind the medicine, 5% (Biphenthrin: first dimension salt) (3:2) behind medicine 10 days, insecticidal effect is respectively 86.69%, 90.20% and 92.94%, and insecticidal effect increases along with the increase of consumption, and each consumption is processed the insecticidal effect difference and reached extremely remarkable.Estimate according to the field, in the test dose scope, plant growth is normal, and the poisoning phenomenon to a variety of Chinese cabbage does not all appear in each treatment agent, illustrate that it is safe to a variety of Chinese cabbage, advise that the insecticide different from the mechanism of action mixes use to delay the generation of pest resistance to insecticide.
The test of 3 field experiments control beet armyworm
3.1.1 test method
Tested on October 8th, 2010 to October 18 and carry out at Kaiping City, Guangdong Province suburb truck garden.Tested on October 8th, 2010 and carry out routine to water spray by each processing design concentration.Spraying equipment is WF-16 type knapsack hand sprayer, and shower nozzle is single fan nozzle, and operating pressure is 0.2-0.4Mpa, and spray amount is 0.36-0.48L/min, carries out the routine spraying, makes every effort to evenly thoughtful during the spray medicine.The field beet armyworm is 1～2 instar larvae peak period during dispenser.Per 667 m
2Be 70kg to the water yield.
Duration of test weather is good, and daily mean temperature is 18.0～26.8 ℃.Dispenser was fine the same day.
3.1.2 investigation method
Before dispenser in every residential quarter by 5 samplings of diagonal. every wild cabbage 2～3 strains (deciding on insect density) of choosing Beet Armyworm Eggs and larva.Statistics is demarcated beet exigua larvae head number in the strain. with this as dispenser before the insect population radix.In after the dispenser the 3rd, 7,10d investigates respectively the beet exigua larvae number of deciding residual survival in the strain. to proofread and correct the insect population decline rate as control efficiency.
3.1.3 drug effect computational methods.
3.1.4 poisoning investigation method
Duration of test is observed and is respectively processed residential quarter wild cabbage well-grown, all finds no the poisoning phenomenon and occurs.
3.2 field control effectiveness test result of the test
Table 3 treatment agent control Laphygma exigua Hubner field control effectiveness test result
As can be seen from Table 3, the Mixed Pharmacy of different proportion, carry out field experiment by different consumptions, its control efficiency to Laphygma exigua Hubner all is better than contrasting medicament behind the medicine, (3:2) control beet armyworm quick-acting is fast for 5% (Biphenthrin: first is tieed up salt), efficiency time is long, and control efficiency is good.10 days insecticidal effect reaches respectively 84.34%, 88.78%, 90.14% behind medicine, and insecticidal effect increases progressively along with the increase of consumption.According to experimental observation, each medication processing all without poisoning, also finds that it to insects such as beet armyworms also have preferably control efficiency simultaneously to wild cabbage.The suggestion dispenser rests in beet exigua larvae before 3 ages period, requires even spraying during dispenser, blade face, blade back even medicine, advise that the medicament different from other mechanisms of action is used alternatingly, to delay the generation of pest resistance to insecticide.
To sum up twice field experiment result is described, the present invention contains the Pesticidal combination of Biphenthrin and first dimension salt, the insects such as beet armyworm and prodenia litura are shown good control efficiency, to the target crop safety, compare with single dose, Pesticidal combination of the present invention has mechanism of action uniqueness, the unit administration amount is few, quick-acting is good, the advantage that lasting period is long, so, in research and development of the present invention and popularization great social effect is arranged, can produce very large economic benefit, promote the peasant's of vast vegetables main producing region increasing both production and income, to agricultural product and Environmental security, the potentiality that vigorously promote the use are arranged.
Claims (5)
1. Pesticidal combination that contains Biphenthrin and emamectin-benzoate is characterized in that: the active ingredient of this Pesticidal combination is Biphenthrin (A) with the mass ratio of emamectin-benzoate (B) is 1～50: 50～1;
2. Pesticidal combination according to claim 1, it is characterized in that: the mass ratio of effective constituents A and B is 1～20: 20～1;
3. Pesticidal combination according to claim 1, it is characterized in that: effective constituents A and the B gross mass in preparation accounts for 1 ~ 50% of the whole quality of the pharmaceutical preparations,
4. Pesticidal combination according to claim 3, it is characterized in that: effective constituents A and the B gross mass in preparation accounts for 1% ~ 30% of the whole quality of the pharmaceutical preparations;
5. according to claim 1 and 2 or 3 or 4 described Pesticidal combinations, it is characterized in that: the formulations of pesticide that this Pesticidal combination can be mixed with are missible oil, suspending agent, wetting powder, water dispersible granules, aqueous emulsion, microemulsion.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102742593A (en) * | 2012-06-20 | 2012-10-24 | 董志平 | Insecticidal composition for control of athetis lepigone |
| CN103907635A (en) * | 2012-12-30 | 2014-07-09 | 青岛锦涟鑫商贸有限公司 | Composition pesticide containing emamectin benzoate |
| CN103891755A (en) * | 2012-12-30 | 2014-07-02 | 青岛锦涟鑫商贸有限公司 | Composition pesticide |
| CN103651512A (en) * | 2013-12-10 | 2014-03-26 | 济南凯因生物科技有限公司 | Missible oil containing emamectin benzoate and bifenthrin and application of missible oil |
| CN108576042A (en) * | 2018-04-20 | 2018-09-28 | 江苏辉丰生物农业股份有限公司 | A kind of microcapsulated granule of prevention peanut pest and disease damage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI364258B (en) * | 2005-03-31 | 2012-05-21 | Mitsui Chemicals Inc | Pest controlling compositions |
| DE102005022147A1 (en) * | 2005-04-28 | 2006-11-02 | Bayer Cropscience Ag | Active agent combination, useful to e.g. combat animal parasites and phytopathogenic fungus, comprises a carboxyamide compound and/or at least an active agent e.g. acetylcholine-receptor-agonist/antagonist |
| CN101185440B (en) * | 2007-12-18 | 2010-06-02 | 张少武 | Compound pesticides containing avermectin |
| CN101480192A (en) * | 2008-01-07 | 2009-07-15 | 青岛奥迪斯生物科技有限公司 | Pesticide composition containing fipronil |
| CN101622989B (en) * | 2009-08-11 | 2012-08-22 | 山东美罗福农化有限公司 | Ambroxol hydrochloride-containing pesticide composition and preparation method thereof |
| CN101790978B (en) * | 2009-12-02 | 2013-03-27 | 深圳诺普信农化股份有限公司 | Pesticide emulsion in water and preparation method thereof |
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