CN115886007B - Pesticide composition, application thereof and pesticide preparation containing pesticide composition - Google Patents

Pesticide composition, application thereof and pesticide preparation containing pesticide composition Download PDF

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Publication number
CN115886007B
CN115886007B CN202211360673.9A CN202211360673A CN115886007B CN 115886007 B CN115886007 B CN 115886007B CN 202211360673 A CN202211360673 A CN 202211360673A CN 115886007 B CN115886007 B CN 115886007B
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pesticide
pyrethroid
composition
pesticide composition
bemisia tabaci
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CN115886007A (en
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司贤良
吴秋芳
祝志凯
杨晓迪
王秋莹
胡守忠
程建
张慧敏
郭宇
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UNITED BIO-SHANGHAI AND SHANGHAI PHARMACEUTICAL (XIAYI) CO LTD
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UNITED BIO-SHANGHAI AND SHANGHAI PHARMACEUTICAL (XIAYI) CO LTD
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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Abstract

The invention provides a pesticide composition, which comprises a dicycloprid and pyrethroid pesticide; the pyrethroid pesticide is selected from beta-cypermethrin or deltamethrin, and the weight ratio of the beta-propisochlor to the pyrethroid pesticide is 1-20:0.1-20. The composition has obvious synergistic effect, can effectively reduce the dosage of active ingredients, slow down the generation of drug resistance of pests, lighten environmental pollution and ensure food safety.

Description

Pesticide composition, application thereof and pesticide preparation containing pesticide composition
Technical Field
The invention relates to the field of agrochemistry, in particular to a pesticide composition, application thereof and a pesticide preparation containing the same.
Background
Bemisia tabaci is commonly called as white moth, has a very wide host range, and can harm various crops such as tomatoes, cucumbers, peppers and the like. Primary in tropical and subtropical regions, today spread rapidly throughout the world. The adult body length of the bemisia tabaci is less than 1mm, but the damage caused by the bemisia tabaci is not ignored. Bemisia tabaci directly pierces plant juice, so that the plant is weakened, nymphs and adults can also secrete honeydew, and the generation of coal pollution is induced. When the density is high, the leaves are black, the photosynthesis is seriously affected, and in addition, more than 70 virus diseases can be transmitted on 30 crops by the bemisia tabaci.
Wheat aphids commonly called oil worms and aphid can carry out piercing and sucking harm on wheat, influence photosynthesis and nutrition absorption and transmission of the wheat, basically occur in a wheat planting area, have light and heavy occurrence degree, and bring no small influence on the yield and quality of the wheat. The common pesticide for preventing and controlling wheat aphids is, for example, thiamethoxam, imidacloprid and other nicotinic pesticides, and the action mechanism is to destroy the function of a nervous system by interacting with a sodium ion channel of the pest, inhibit nicotinic acid acetylcholinesterase receptors of the central nervous system of the pest, block normal conduction of the central nervous system of the pest, and cause paralysis of the pest to cause death.
At present, the use of pesticides in the control of bemisia tabaci and aphids is still dominant. Because of the use of single pesticides throughout the year, the pests can generate strong resistance, and in this case, the pesticides need to be replaced in time for control.
The common name of the hydroprene is: afidopyropen which has novel structure and brand new action mechanism, can be used for preventing and controlling small pests such as scale insects, thrips, leafhoppers, whiteflies and the like on rice, fruit trees, vegetables, intertillage crops and ornamental plants, has good effect on leaf surface treatment, seed treatment and soil treatment, and has low toxicity. The novel pesticide has a unique action mechanism, so that the novel pesticide is very suitable for pest control which generates drug resistance or is easy to generate drug resistance, but the raw material price of the hydroprene is higher, the popularization is not facilitated, and the problem that drug resistance can be generated after long-term single use is also existed.
The pyrethroid insecticide is a novel broad-spectrum insecticide which is synthesized artificially on the basis of simulating the active ingredients of natural pyrethrum and has the advantages of high efficiency, low toxicity, low residue and safety. The pesticide has the advantages of high knockdown speed, strong knockdown force, small dosage and rain wash resistance after spraying, and is an ideal substitute for traditional organic chlorine and organic phosphorus pesticides. The pyrethroid pesticide can prevent and treat lepidoptera, homoptera, diptera, orthoptera and coleoptera pests, and has good effect on lepidoptera and homoptera pests. But due to their large use, many pests develop resistance to them.
The applicant screens out the insecticidal composition with synergistic effect by researching the compound combination of the bifenthrin and different pyrethroid medicines.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides a pesticidal composition comprising a dicycloprid and a pyrethroid pesticide; the pyrethroid pesticide is selected from beta-cypermethrin or deltamethrin, and the weight ratio of the beta-propisochlor to the pyrethroid pesticide is 1-20:0.1-20.
The weight ratio of the preferred hydroprene to the pyrethroid pesticide is 1-10:0.2-10.
The weight ratio of the preferred hydroprene to the beta-cypermethrin is 1:2.5-1:2; the weight ratio of the dicycloprid to the deltamethrin is 1:1-2.5:1.
The second aspect provides a pesticide preparation, which comprises the pesticide composition, wherein the weight percentage of active ingredients is 1-50%, and the formulation of the pesticide preparation is one of wettable powder, water dispersible granules, suspending agent, aqueous emulsion, microemulsion, suspoemulsion, microcapsule suspending agent and dispersible agent.
In a second aspect there is provided the use of a pesticide composition or pesticide formulation for controlling crop pests. The pests are bemisia tabaci, aphids, plasmaphis and other pests; the crops are tomato, capsicum, cucumber, wheat, cabbage, cucumber, peach, apple tree and other plants.
The invention has at least one of the following beneficial effects:
The invention ensures excellent pest control effect and simultaneously controls the raw material cost by compounding the hydroprene and pyrethroid pesticides, thereby being easier to be widely popularized in agricultural production.
The composition has obvious synergistic effect, can effectively reduce the dosage of active ingredients, slows down the generation of drug resistance of pests such as tomato bemisia tabaci, reduces environmental pollution and ensures food safety.
The dispersible agent is added with the synergist methyl oleate, so that the control effect of the dispersible agent preparation on pests can be improved; in particular, the methyl oleate promotes the remarkable improvement of the prevention effect of the 3% diester-cyanuric chloride dispersible agent, and has remarkable variability.
Detailed Description
The invention is further illustrated with reference to specific embodiments.
Example 1: indoor toxicity test of hydroprene and pyrethroid compound combination on bemisia tabaci
Test material: tomato type B bemisia tabaci is collected from a greenhouse population in a tomato test field, and is cultivated and stored indoors, and bemisia tabaci adults with consistent individual sizes are selected for testing during experiments.
The testing method comprises the following steps: the blade impregnation method is adopted. On a pre-test basis, the test agents were diluted to 7 series of concentrations. Beating fresh tomato leaves into leaf discs by using a puncher with the diameter of 2.5cm, immersing the leaves in the liquid medicine for 10s, placing the leaves on absorbent paper for airing, and clamping the leaves into glass tubes which are added with 1mL of agar in advance by using tweezers, wherein each tube is 1 piece; sucking the adult bemisia tabaci to be tested into a fluke device, transferring the device into a glass tube, repeating the treatment for 4 times, sealing the glass tube with a cotton plug for 30-40 times, inverting the glass tube into a artificial climate box, counting and checking the death number of the bemisia tabaci after 48 hours, and calculating the death rate by taking the case that the light touch body of the writing brush tip cannot be regarded as death by a crawler.
Regression analysis is carried out on the treatment concentration log values and the corresponding mortality probability values of the single agents and the mixed and combined agents with different proportions by using DPS statistical software, a virulence regression curve, LC 50 values and correlation coefficients are calculated, and the co-virulence coefficient (CTC value) of the mixture is calculated according to the grand Yunpei method.
The co-toxicity coefficient (CTC value) of the mixture is calculated according to the formulas (1), (2) and (3):
Wherein: ati—actual measured virulence index of the mixture;
S-LC 50 for standard pesticides in milligrams per liter (mg/L);
LC 50 for M-blends in milligrams per liter (mg/L).
TTI＝A×PA+B×PB·························(2)
Wherein: TTI-the theoretical toxicity index of the mixture;
a-a agent virulence index;
The percentage of the P A -A medicament in the mixture is expressed as percentage (%);
B-B drug toxicity index;
the percentage of the P B -B agent in the mixture is expressed as a percentage (%).
Wherein: ctc—co-toxicity coefficient; ati—actual measured virulence index of the mixture; tti—theoretical toxicity index of the mixture.
The co-toxicity coefficient CTC of the compound combination is more than or equal to 120, and the synergistic effect is shown; ctc.ltoreq.80 shows antagonism; 80 < CTC < 120 shows additive effect.
Test results: the combination of the hydroprene and different pyrethroid medicaments shows different combined actions on tomato bemisia tabaci. As shown in table 1, the mass ratio of the dicycloprid to the beta-cypermethrin is 1:2.5-1:2, the synergistic effect is shown, and the additive effect is shown under other proportions. As shown in table 2, the mass ratio of the hydroprene to the deltamethrin is 1:1-2.5: the synergistic effect is shown in the 1 st stage, and the additive effect is shown in the other stages. As can be seen from Table 3, the mixture ratio of the bifenthrin to the iprovalicarb is in the range of 1:5-5:1.
When the composition shows a synergistic effect, the dosage of the active ingredients can be effectively reduced, the generation of drug resistance of tomato bemisia tabaci is slowed down, the environmental pollution is lightened, and the food safety is ensured.
TABLE 1 determination of the combined effects of Dipropisochlamum and beta-cypermethrin on Bemisia tabaci
TABLE 2 determination of the combined action of Dipropisochlamum and deltamethrin on Bemisia tabaci
TABLE 3 determination of the combined effects of Bispyriferyl and bifenthrin on Bemisia tabaci
Example 2 formulation example
Formulation 1:
3.5% of diester-cyanuric chloride suspending agent, which comprises the following components in percentage by weight: 1% of hydroprene, 2.5% of beta-cypermethrin, 4% of sodium lignin sulfonate, 3% of calcium dodecyl benzene sulfonate, 0.2% of SP-2702%, 0.2% of xanthan gum, 0.5% of sodium benzoate, 2% of ethylene glycol, 0.5% of organosilicon, 3% of white carbon black and deionized water which make up 100%.
Formulation 2:
6% bis-ester-cyanuric chloride suspending agent
2% Of hydroprene, 4% of beta-cypermethrin, 3% of sodium lignin sulfonate, 4% of calcium dodecyl benzene sulfonate, 0.1% of SP-2700%, 0.5% of xanthan gum, 2.5% of sodium benzoate, 0.5% of ethylene glycol, 2% of organic silicon, and 100% of white carbon black and deionized water.
Formulation 3:
4% diester bromocyanides suspending agent
2% Of dicycloprid, 2% of deltamethrin, 4% of calcium dodecyl benzene sulfonate, 3% of nekal, 3% of SP-2800%, 3% of magnesium aluminum silicate, 1% of sodium benzoate, 3% of glycol, 0.5% of organosilicon, 4% of white carbon black and 100% of deionized water.
Formulation 4:
4% diester bromocyanides suspending agent
2.5% Of dicycloprid, 1.5% of deltamethrin, 2% of calcium dodecyl benzene sulfonate, 4% of nekal, 2% of SP-2800, 2% of magnesium aluminum silicate, 0.8% of sodium benzoate, 2% of ethylene glycol, 0.3% of organosilicon, 3% of white carbon black and deionized water which are added to make up 100%.
Formulation 5:
3% of a diester-cyanuric chloride dispersible agent, comprising the following components in percentage by weight:
1% of hydroprene, 2% of high-efficiency cypermethrin, 4% of tween 80, 1601% of agricultural emulsion, 3% of synergist methyl oleate, 2% of glycerol, 10% of ethanol and 100% of soybean oil.
Formulation 6:
the 4% diester-bromothalonil dispersible agent comprises the following components in percentage by weight:
2% of hydroprene, 2% of deltamethrin, 4% of tween 80, 3% of agricultural emulsion 1601, 3% of synergist methyl oleate, 2% of glycerol, 15% of ethanol and 100% of soybean oil.
Comparative formulation 1 (without synergist)
3% Of a diester-cyanuric chloride dispersible agent, comprising the following components in percentage by weight:
1% of dicycloprid, 2% of high-efficiency cypermethrin, 4% of tween 80, 1601 of agricultural emulsion, 2% of glycerol, 10% of ethanol and 100% of soybean oil.
Comparative formulation 2 (without synergist)
The 4% diester-bromothalonil dispersible agent comprises the following components in percentage by weight:
2% of dicycloprid, 2% of deltamethrin, 4% of tween 80, 3% of agricultural emulsion 1601, 2% of glycerol, 15% of ethanol and 100% of soybean oil.
Example 3 field control of tomato bemisia tabaci by combination of Dipropisochlor and pyrethrin
Testing crop pests: tomato bemisia tabaci
The testing method comprises the following steps: the cell area is 45m 2, the random block arrangement is repeated for 4 times. The spray is used for uniformly spraying all parts of the whole tomato plant, and the dosage of the liquid medicine is 750kg/hm 2. In order to reduce human error, the humidity of the control area is kept consistent with that of the control area, and the control area is sprayed with equal amount of clean water when spraying the pesticide. A 5-point sampling method is adopted for each cell in the test, and 10 tomatoes are sampled in each cell; the number of insects was investigated before the drug, and the number of residual insects was investigated 14 days after the drug. The following formula data processing and analysis are adopted:
Rate of reduction of insect population = (pre-drug insect population base-post-drug number of living insects)/pre-drug insect population base x 100%
Control effect = (rate of reduction of insect population in treatment area-rate of reduction of insect population in control area)/(rate of reduction of insect population in control area 100%
Test results: as can be seen from Table 4, the suspending agent and the dispersible agent prepared by the invention have excellent control effect on tomato bemisia tabaci. In addition, the addition of the synergist methyl oleate into the dispersible agent can improve the pest control effect of the preparation: compared with the comparative preparation 1, the preparation 5 has the obvious difference that the methyl oleate is added into the preparation 5 to promote the prevention effect of the 3% diester-cyanuric chloride dispersible agent to be obviously improved. Compared with the comparative preparation 2, the preparation 6 has the advantages that the methyl oleate is added to promote the prevention effect of the 4% diester-bromothalonil dispersible agent, but no obvious difference exists, and the specific reasons are to be further studied.
Table 4 field efficacy test of the formulations against tomato bemisia tabaci
Example 4 field control of wheat aphid with the combination of Dipropisochlor and pyrethroid
Testing crop pests: wheat aphid
The testing method comprises the following steps: the cell area is 50m 2, the random block arrangement is repeated for 4 times. The liquid medicine is uniformly sprayed on all parts of wheat, mainly wheat ears and upper leaves, and the dosage of the liquid medicine is 750kg/hm 2. The control area was sprayed with an equal amount of clear water. A 5-point sampling method is adopted for each cell in the test, and 20 wheat plants are sampled in each cell; the number of insects was investigated before the drug, and the number of remaining insects was investigated 7 days after the drug. The following formula data processing and analysis are adopted:
Rate of reduction of insect population = (pre-drug insect population base-post-drug number of living insects)/pre-drug insect population base x 100%
Control effect = (rate of reduction of insect population in treatment area-rate of reduction of insect population in control area)/(rate of reduction of insect population in control area 100%
Test results: as shown in Table 5, the dispersible agent prepared by the invention has excellent control effect on wheat aphids. In addition, the synergistic agent methyl oleate can be added into the dispersion liquid to improve the control effect of the preparation on wheat aphids: compared with the comparative preparation 1, the preparation 5 has the obvious difference that the methyl oleate is added into the preparation 5 to promote the prevention effect of the 3% diester-cyanuric chloride dispersible agent to be obviously improved. Compared with the comparative preparation 2, the preparation 6 has the advantages that the methyl oleate is added into the preparation 5 to promote the prevention effect improvement of 4% of diester-bromocyanides dispersible agent, but no obvious difference exists; the specific reasons are to be further investigated.
Table 5 field efficacy test of the formulations against wheat aphids
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same.

Claims (4)

1. Use of a pesticide composition for controlling bemisia tabaci, characterized in that the pesticide composition comprises a triclopyr and a pyrethroid pesticide; the pyrethroid pesticide is beta-cypermethrin, and the weight ratio of the beta-propiconazole to the pyrethroid pesticide is 1 (2-2.5).
2. Use of a pesticide composition for controlling bemisia tabaci, characterized in that the pesticide composition comprises a triclopyr and a pyrethroid pesticide; the pyrethroid pesticide is deltamethrin, and the weight ratio of the difenoconazole to the pyrethroid pesticide is (1-2.5): 1.
3. The use according to claim 1, characterized in that the pesticide composition is a 3% diester-cyanuric chloride dispersible formulation comprising the following components in weight percentage: 1% of hydroprene, 2% of high-efficiency cypermethrin, 4% of tween 80, 1601% of agricultural emulsion, 3% of synergist methyl oleate, 2% of glycerol, 10% of ethanol and 100% of soybean oil.
4. The use according to claim 2, characterized in that the pesticide composition is a 4% diester-bromothalonil dispersible formulation comprising the following components in weight percentage: 2% of hydroprene, 2% of deltamethrin, 4% of tween 80, 3% of agricultural emulsion 1601, 3% of synergist methyl oleate, 2% of glycerol, 15% of ethanol and 100% of soybean oil.
CN202211360673.9A 2022-11-02 2022-11-02 Pesticide composition, application thereof and pesticide preparation containing pesticide composition Active CN115886007B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101626687A (en) * 2007-03-08 2010-01-13 明治制果株式会社 Pest control composition
CN102905528A (en) * 2010-05-28 2013-01-30 巴斯夫欧洲公司 Pesticidal mixtures
CN106106500A (en) * 2016-06-24 2016-11-16 江苏省绿盾植保农药实验有限公司 A kind of containing double third ring worm esters and the composite insecticide of ethofenprox and application
CN106857640A (en) * 2017-03-20 2017-06-20 陕西上格之路生物科学有限公司 A kind of Pesticidal combination containing double third ring worm esters
CN111669972A (en) * 2018-01-29 2020-09-15 巴斯夫农业公司 Novel agrochemical formulations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101626687A (en) * 2007-03-08 2010-01-13 明治制果株式会社 Pest control composition
CN102905528A (en) * 2010-05-28 2013-01-30 巴斯夫欧洲公司 Pesticidal mixtures
CN106106500A (en) * 2016-06-24 2016-11-16 江苏省绿盾植保农药实验有限公司 A kind of containing double third ring worm esters and the composite insecticide of ethofenprox and application
CN106857640A (en) * 2017-03-20 2017-06-20 陕西上格之路生物科学有限公司 A kind of Pesticidal combination containing double third ring worm esters
CN111669972A (en) * 2018-01-29 2020-09-15 巴斯夫农业公司 Novel agrochemical formulations

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