CN110896948A - Insecticidal composition containing d-limonene - Google Patents
Insecticidal composition containing d-limonene Download PDFInfo
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- CN110896948A CN110896948A CN201911027769.1A CN201911027769A CN110896948A CN 110896948 A CN110896948 A CN 110896948A CN 201911027769 A CN201911027769 A CN 201911027769A CN 110896948 A CN110896948 A CN 110896948A
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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
- A01N27/00—Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/06—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings
- A01N43/12—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom five-membered rings condensed with a carbocyclic ring
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
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Abstract
The invention discloses an insecticidal composition containing d-limonene, which is mainly characterized in that: the active ingredients comprise an active ingredient A and an active ingredient B, wherein the active ingredient A is d-limonene, the active ingredient B is any one of celastrus angulatus, cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, the weight ratio of the active ingredient A to the active ingredient B is 1: 80-80: 1, and the composition is prepared into a soluble liquid agent, a water dispersible granule, a microemulsion, an aqueous emulsion and an aqueous solution. The composition can prevent and treat various pests on crops, has obvious synergistic effect, reduces the pesticide dosage, is safe to human and livestock, has no pesticide damage and has good environmental compatibility; the preparation has high adhesion and rain wash resistance.
Description
Technical Field
The invention belongs to the technical field of pesticides, and relates to an insecticidal composition containing d-limonene.
Background
D-limonene (D-limonene), molecular formula: c10H16D-limonene is orange oil extracted from orange peels by a professional cold pressing technology, belongs to a natural plant source pesticide, has a unique physical contact killing effect on pests, has no cross resistance with a common chemical pesticide, and has an insecticidal mechanism that a wax layer on the body surfaces of the pests is dissolved, so that the pests are quickly knocked down and die in an obvious water loss state.
Cnidium lactone, celastrus angulatus, oxymatrine, chamaejasmine, tea saponin and stemonine are botanical insecticides, and the most easily generated problem for preventing and controlling pests is the generation of drug resistance in the actual process of agricultural production. The compounding of different kinds of components is a common method for preventing and controlling resistant pests. Different components are compounded, and whether a certain compound has synergism, addition or antagonism is judged according to the actual application effect. In most cases, the compounding effect of the pesticide is additive effect, the compounding with real synergistic effect is less, and especially the compounding with very obvious synergistic effect and very high co-toxicity coefficient is less. A large number of experiments of the inventor show that after d-limonene is compounded with celastrus angulatus, cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, the synergistic effect is obvious, the environmental compatibility is excellent, the pesticide dosage is greatly reduced, and when the d-limonene is compounded with the celastrus angulatus, the cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, no relevant report is found at home and abroad.
Disclosure of Invention
The insecticidal composition provided by the invention comprises two active components of d-limonene and any one of celastrol, cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, and also comprises a proper amount of surfactant and carrier.
An insecticidal composition containing d-limonene, which comprises an active ingredient A and an active ingredient B, and is characterized in that: the active ingredient A is d-limonene, the active ingredient B is any one of celastrus angulatus, cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, and the weight ratio of the active ingredient A to the active ingredient B is 1: 80-80: 1; preferably, the weight ratio of the active ingredient A to the active ingredient B is 1: 40-40: 1; more preferably, the weight ratio of the d-limonene to the active ingredient B is 1: 20-20: 1.
The insecticidal composition is characterized in that: the composition can be made into soluble liquid, water dispersible granule, microemulsion, aqueous emulsion and aqua.
The insecticidal composition is used for preventing and controlling pests on grain crops, bean crops, fiber crops, sugar crops, melon crops, fruit crops, dry fruit crops, hobby crops, root crops, oil crops, flower crops, medicinal crops, raw material crops and green manure pasture crops, and the pest prevention and control comprises the following steps: aphids, psylla chinensis, tetranychus urticae, cabbage caterpillars, tea leafhoppers, whiteflies, scale insects, armyworms, flea beetles, cotton bollworms, thrips, leafhoppers, asparagus caterpillars, diamond back moths, rice planthoppers, striped rice borers, rice leaf rollers, tryporyza incertulas or prodenia litura.
The insecticidal compositions of the present invention comprise at least one surfactant to facilitate dispersion of the active ingredient in water upon application. The content of the surfactant accounts for 5 to 30 percent of the total weight of the preparation, and the balance is solid or liquid diluent. The surfactants selected for use in the pesticidal compositions of the present invention are well known to those skilled in the art: can be selected from one or more of dispersing agent, wetting agent, emulsifying agent or defoaming agent.
The composition is prepared into soluble liquid and comprises the following components in percentage by weight: 0.01-50% of active ingredient A, 0.01-50% of active ingredient B, 1-10% of emulsifier, 2-6% of cosolvent and solvent added to 100%.
When the composition is prepared into water dispersible granules, the composition comprises the following components in percentage by weight: 0.01-60% of active ingredient A, 0.01-80% of active ingredient B, 3-12% of dispersing agent, 1-8% of wetting agent, 1-10% of disintegrating agent and the balance of filler.
The composition is prepared into a suspending agent and comprises the following components in percentage by weight: 0.01-50% of active ingredient A, 0.01-50% of active ingredient B, 2-10% of dispersing agent, 2-10% of wetting agent, 0.1-2% of defoaming agent, 0.05-1% of thickening agent, 1-8% of antifreeze agent and 100% of deionized water.
The composition comprises the following components in percentage by weight when prepared into microemulsion: 0.01-50% of active ingredient A, 0.01-50% of active ingredient B, 3-25% of emulsifier, 1-10% of solvent, 0-8% of antifreeze agent, 0.01-2% of defoamer and 100% of deionized water.
When the composition is prepared into an aqueous emulsion, the composition comprises the following components in percentage by weight: 0.01-40% of active component A, 0.01-50% of active component B, 0-30% of solvent, 1-15% of emulsifier, 0-8% of co-emulsifier, 0-10% of antifreeze agent, 0.05-1% of thickening agent, 0.01-2% of defoaming agent and the balance of deionized water.
When the composition is prepared into a water agent, the composition comprises the following components in percentage by weight: 0.01-50% of active ingredient A, 0.01-50% of active ingredient B, 2-6% of cosolvent, 1-10% of wetting agent, 0-8% of antifreeze agent and 100% of deionized water.
The water dispersible granule has the main technical indexes that:
the microemulsion of the invention has the main technical indexes that:
the aqueous emulsion of the invention has the main technical indexes that:
the main technical indexes of the water aqua of the invention are as follows:
the invention has the advantages that:
(1) after the d-limonene is compounded with the celastrus angulatus, the cnidium lactone, the oxymatrine, the chamaejasmine, the tea saponin and the stemonine, the composition has obvious synergy and lasting effect;
(2) the prevention spectrum is expanded, and the pesticide composition has higher activity on aphids, psylla, two-spotted spider mites, tea leafhoppers, cabbage caterpillars, whiteflies, scale insects, armyworms, flea beetles, cotton bollworms, thrips, leafhoppers, asparagus caterpillars, diamond back moths, rice planthoppers, striped rice borers, rice leaf rollers, tryporyza incertulas or prodenia lituras and the like of grain crops, bean crops, fiber crops, sugar crops, melon crops, fruit crops, dried fruit crops, favorite crops, rhizome crops, root crops, oil crops, flower crops, medicinal crops, raw material crops and green manure pasture crops;
(3) the dosage of the pesticide is reduced, the residual quantity of the pesticide on crops is reduced, and the environmental pollution is reduced;
(4) is safe to human and livestock, has good environmental compatibility and is not easy to generate drug resistance.
Detailed Description
The invention will be further illustrated with reference to the following examples, in which the percentages are by weight, but the invention is not limited thereto.
Application embodiment 1
EXAMPLES 1 to 18 soluble liquid agent
Uniformly shearing and mixing the emulsifier and the cosolvent at a high speed, adding d-limonene, carrying out ball milling in a ball mill for 2-3 hours to ensure that the particle size of particles is below 5 mu m, and complementing the balance with a solvent to obtain the soluble liquid product disclosed by the invention, wherein the specific table 1 is shown in the specification.
TABLE 1 examples 1-18 compositions and parts by weight
Examples 19 to 36 Water dispersible granule
D-limonene, an active ingredient B, a dispersing agent, a wetting agent, a disintegrating agent and a filler are subjected to airflow crushing to obtain a required particle size, and other auxiliary agents such as a binder (optionally added) and the like are added to obtain the granulating material. And (3) quantitatively feeding the material into a fluidized bed granulation dryer, and granulating and drying to obtain the water dispersible granule product. See table 2 for details.
TABLE 2 examples 19 to 36 compositions and amounts
Examples 37 to 54 aqueous solutions
Mixing d-limonene, active component B, wetting agent, antifreezing agent (optionally added), solvent and deionized water together to obtain the invented aqueous product. See table 3 for details.
TABLE 3 examples 31-54 compositions and amounts
Example 55 to 66 emulsion in Water
D-limonene, an active ingredient B, a solvent and an emulsifier are added together to be dissolved into a uniform oil phase; mixing deionized water, antifreeze agent (optionally), thickener (optionally), and defoaming agent together to obtain uniform water phase. Adding the water phase into the oil phase under high-speed stirring, and supplementing the balance with deionized water; the aqueous emulsion product of the invention can be prepared, and the details are shown in Table 4.
TABLE 4 examples 55 to 66 compositions and parts by weight
Examples 67 to 78 microemulsions
D-limonene and an active component B are dissolved in a homogenizer filled with a solvent, an emulsifier, an antifreeze agent (optionally added) and a defoaming agent are added into the homogenizer filled with the solution, and strong mixing and homogenization are carried out after the balance is made up by deionized water, and finally the microemulsion product with clear and transparent appearance is obtained. See table 5 for details.
TABLE 5 examples 67-78 compositions and amounts
The new preparation can be prepared by interchanging celastrine, cnidium lactone, oxymatrine, chamaejasmine and tea saponin in tables 1-5.
The embodiment of the invention adopts a method combining indoor toxicity measurement and field test. Firstly, determining the co-toxicity coefficient (CTC) of two medicaments compounded according to a certain proportion by indoor toxicity measurement, wherein the CTC is less than 80 and is antagonistic action, the CTC is more than or equal to 80 and is less than or equal to 120 and is additive action, and the CTC is more than 120 and is synergistic action, and then carrying out field test on the basis.
The test method comprises the following steps: during the test, the mother liquor of each mixture is respectively diluted into five series of concentrations and respectively placed in beakers for standby. Soaking leaves which are not contacted with any medicament and have consistent size in prepared liquid medicine for 5s, taking out, naturally drying, placing in an insect breeding box, inoculating tested larvae, breeding at 25 ℃, repeating for 3 times, wherein the number of the tested insects used in each repetition is 50, simultaneously setting a blank control, checking the number of dead insects in 72h, calculating the death rate and correcting the death rate, solving a toxicity regression equation, and calculating LC50The value is obtained. If the control mortality is greater than 10%, the test is considered invalid. The calculation formula is as follows:
the corrected mortality of pests was converted into a probability value (y), the treated concentration (. mu.g/ml) was converted into a logarithmic value (x), a virulence regression equation was obtained by the least square method, and a value of each agent was calculated therefrom. And (4) calculating a co-toxicity coefficient CTC according to a Sun cloud Peel formula method. The calculation formula is as follows (d-limonene is taken as a standard medicament, and the virulence index is 100):
TI × Pd-Limonene+ TI XP of active ingredient BActive ingredientB
In the formula: m is a mixture with different proportions;
Pactive ingredientB is the proportion of the active component B in the composition;
Pd-limoneneIs the proportion of d-limonene in the composition.
Note: the active component B is one of kurarinone, osthole, oxymatrine, chamaejasmine, tea saponin and stemonine.
Application example two:
the tested pests: tomato bemisia tabaci.
And (3) experimental design: the effective lethal concentration ranges of the d-limonene, the osthole technical and the mixture of the d-limonene and the osthole with different proportions are determined through a preliminary test.
Virulence determination result 1
TABLE 6 determination of toxicity of d-limonene to cnidium lactone on tomato Bemisia tabaci at different ratios
As can be seen from Table 6, when d-limonene and cnidium lactone are compounded to prevent and control tomato bemisia tabaci at a ratio of 80:1 to 1:80, the co-toxicity coefficients are all larger than 120, which shows that the synergistic effect is more obvious when the d-limonene and the cnidium lactone are mixed within a range of 80:1 to 1:80, particularly when the weight ratio of the d-limonene to the cnidium lactone is 20:1 to 1:20, wherein the co-toxicity coefficient is the largest when the weight ratio of the d-limonene to the cnidium lactone is 1:1, the synergistic effect is most obvious, and meanwhile, the ratio of the d-limonene to the cnidium lactone is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pairing of whitefly, scale insect, armyworm, striped flea beetle, cotton bollworm, thrips, pear psylla, leafhopper, beet armyworm, diamond back moth, cabbage caterpillar, rice planthopper, chilo suppressalis, rice leaf roller, tryporyza incertulas, aphid, prodenia litura and other pests also have good synergistic action, and the co-toxicity coefficients are all more than 215.
Application example three:
the tested pests: hot pepper beet noctuid
And (3) experimental design: the effective lethal concentration range of the d-limonene, the celastrus angulatus original drugs and the mixture of the d-limonene and the celastrus angulatus original drugs with different proportions is determined through a preliminary test.
Virulence determination result 2
TABLE 7 virulence determination of hot pepper beet armyworm by different ratios of d-limonene to celastrol
As can be seen from Table 7, the co-toxicity coefficient of the d-limonene and the celastrus angulatus compounded for preventing and treating the pepper beet armyworm is greater than 120 when the ratio of the d-limonene to the celastrus angulatus is 80:1 to 1:80, which indicates that the synergistic effect is shown when the d-limonene and the celastrus angulatus are mixed in the range of 80:1 to 1:80, particularly when the ratio of the d-limonene to the celastrus angulatus is 20:1 to 1:20, the synergistic effect is more obvious, wherein the co-toxicity coefficient is the largest when the weight ratio of the d-limonene to the celastrus angulatus is 1:1, the synergistic effect is most obvious, and meanwhile, the ratio of the d-limonene to the celastrus angulatus is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pairing whitefly, scale insect, armyworm, striped flea beetle, cotton bollworm, thrips, pear psylla, leafhopper, beet armyworm, diamond back moth, cabbage caterpillar, rice planthopper, striped rice borer, rice leaf roller, tryporyza incertulas, aphid, prodenia litura and other pests also have better synergistic action, and the co-toxicity coefficients are all more than 220.
Application example four:
the tested pests: tomato bemisia tabaci.
And (3) experimental design: the effective lethal concentration range of the d-limonene, the oxymatrine technical product and the mixture of the d-limonene and the oxymatrine with different proportions is determined through a preliminary test.
Virulence determination result three
TABLE 8 determination of toxicity of d-limonene and oxymatrine on tomato Bemisia tabaci at different ratios
As can be seen from Table 8, the co-toxicity coefficients of the d-limonene and the oxymatrine are both greater than 120 when the ratio of the d-limonene to the oxymatrine to the d-limonene is 80:1 to 1:80, which indicates that the synergistic effect is more obvious when the ratio of the d-limonene to the oxymatrine is in the range of 80:1 to 1:80, wherein the co-toxicity coefficient is the largest and the synergistic effect is most obvious when the weight ratio of the d-limonene to the oxymatrine is 1:1, and the ratio of the d-limonene to the oxymatrine is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:1, 4:1, 2:1, 1:8, 1:9, 1:10, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pair aphid, psylla chinensis, tetranychus urticae, tea leafhopper, cabbage caterpillar, whitefly, scale insect, armyworm, flea beetle, cotton bollworm, thrip, leafhopper, beet armyworm, diamond back moth, rice planthopper, chilo suppressalis, rice leaf roller, tryporyza incertulas or prodenia litura and other pests also have better synergistic action, and the co-toxicity coefficients are all more than 215.
Application example five:
the tested pests: cabbage caterpillar.
And (3) experimental design: the effective lethal concentration range of the d-limonene, the chamaejasmine technical and the mixture of the d-limonene and the chamaejasmine technical in different proportions is determined through a preliminary test.
Virulence determination result four
TABLE 9 determination of toxicity of d-limonene against cabbage caterpillar in different ratios to chamaejasmine
As can be seen from table 9, the co-toxicity coefficient of the d-limonene and chamaejasmine is greater than 120 when the ratio of the d-limonene to the chamaejasmine is 80:1 to 1:80, which indicates that the synergistic effect is more obvious when the d-limonene and the chamaejasmine are mixed in the range of 80:1 to 1:80, particularly when the ratio of the d-limonene to the chamaejasmine is 20:1 to 1:20, wherein the co-toxicity coefficient is the largest and the synergistic effect is most obvious when the weight ratio of the d-limonene to the chamaejasmine is 2:1, and the ratio of the d-limonene to the chamaejasmine is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pairing aphid, pear psylla, tetranychus urticae, tea lesser leafhopper, cabbage caterpillar, whitefly, scale insect, armyworm, flea beetle, cotton bollworm, thrips, leafhopper, beet armyworm, diamond back moth, rice planthopper, striped rice borer, rice leaf roller, tryporyza incertulas or prodenia litura and other pests also have better synergistic action, and the co-toxicity coefficients are all more than 220.
Application example six:
the tested pests: tea leaf tea lesser leafhopper
And (3) experimental design: the effective lethal concentration range of the d-limonene, the tea saponin technical and the mixture of the d-limonene and the tea saponin with different proportions is determined through a preliminary test.
Virulence determination result five
TABLE 10 determination of toxicity of different proportions of d-limonene and tea saponin on tea leafhoppers
As can be seen from table 10, when the ratio of d-limonene to tea saponin for preventing and treating tea leafhoppers is 80:1 to 1:80, the co-toxicity coefficient is greater than 120, which indicates that the synergistic effect is shown when the d-limonene and the tea saponin are mixed in the range of 80:1 to 1:80, especially when the ratio of d-limonene to tea saponin is 20:1 to 1:20, the synergistic effect is more obvious, wherein when the weight ratio of d-limonene to tea saponin is 1:1, the co-toxicity coefficient is the largest, the synergistic effect is most obvious, and meanwhile, the ratio of d-limonene to tea saponin is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:6, 1: 7: 8, 1:8, 1:9, 1 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pairing aphid, pear psylla, tetranychus urticae, tea lesser leafhopper, cabbage caterpillar, whitefly, scale insect, armyworm, flea beetle, cotton bollworm, thrips, leafhopper, beet armyworm, diamond back moth, rice planthopper, striped rice borer, rice leaf roller, tryporyza incertulas or prodenia litura and other pests also have better synergistic action, and the co-toxicity coefficients are all more than 220.
Application example seven:
the tested pests: rice leaf roller
And (3) experimental design: the effective lethal concentration range of the d-limonene, the stemonine raw pesticide and the mixture of the d-limonene and the stemonine raw pesticide in different proportions is determined through a preliminary test.
Virulence determination result five
TABLE 11 determination of toxicity of d-limonene and stemonine on rice leaf rollers at different ratios
From Table 10, it can be seen that the co-toxicity coefficient of d-limonene and stemonine compounded for preventing and treating rice leaf rollers is greater than 120 when the proportion of d-limonene to stemonine is 80:1 to 1:80, which indicates that the synergistic effect is shown when the proportion of d-limonene to stemonine is in the range of 80:1 to 1:80, especially when the proportion of d-limonene to stemonine is 20:1 to 1:20, the synergistic effect is more obvious, wherein the co-toxicity coefficient is the largest when the weight ratio of d-limonene to stemonine is 1:1, and the synergistic effect is most obvious, and meanwhile, the proportion of d-limonene to stemonine is 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:11, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19 and 1:20 times of compound pairing aphid, pear psylla, tetranychus urticae, tea lesser leafhopper, cabbage caterpillar, whitefly, scale insect, armyworm, flea beetle, cotton bollworm, thrips, leafhopper, beet armyworm, diamond back moth, rice planthopper, striped rice borer, rice leaf roller, tryporyza incertulas or prodenia litura and other pests also have better synergistic action, and the co-toxicity coefficients are all more than 220.
Pharmacodynamic test part: the test medicament is provided by Shanxi Kanghuitong biotechnology and medicine industry Co., Ltd, and the reference medicament is 5% d-limonene soluble solution (self-prepared), 1% celastrus angulatus aqueous emulsion (purchased from market), 1% osthole aqueous emulsion (purchased from market), 0.3% oxymatrine aqueous solution (purchased from market), 1.6% chamaejasmine aqueous emulsion (purchased from market), 30% tea saponin aqueous solution (purchased from market) and 1.8% stemonine microemulsion (purchased from market).
Pesticide effect test of octad-limonene, active ingredient B and compound of active ingredient B in application example for controlling tomato bemisia tabaci
The experiment is arranged in Changan area in the west of Shaanxi province, the conventional spraying method is adopted in the experiment, the tomato powdery mildew insect pest indexes are investigated before pesticide application, the pesticide application is carried out at the initial stage of insect pest occurrence, the insect pest indexes are investigated 10 days, 30 days and 60 days after the pesticide application, and the control effect is calculated. The experimental results are shown below:
TABLE 12 d-limonene, active ingredient B and its built-up efficacy test for controlling tomato Bemisia tabaci
As can be seen from Table 12, the d-limonene can effectively prevent and control the tomato bemisia tabaci after being compounded with the active ingredient B, the prevention and control effects are superior to those of a single agent, and the prevention and control time is long. Has no adverse effect on target crops in the application range of the test.
Pesticide effect test of nine d-limonene and active ingredient B and compound of active ingredient B in application embodiment for preventing and treating cabbage caterpillars
The experiment is arranged in Yingshang county of Fuyang city in Anhui province, the conventional spraying method is adopted in the experiment, the insect pest index of cabbage caterpillar is investigated before the pesticide application, the pesticide application is carried out at the initial stage of the insect pest generation, and the insect pest index is investigated 10 days, 30 days and 60 days after the pesticide application and the control effect is calculated. The experimental results are shown below:
TABLE 13D-limonene, active ingredient B and its built pesticide effect test for preventing and controlling cabbage caterpillar
As can be seen from Table 13, after the d-limonene and the active ingredient B are compounded, cabbage caterpillar can be effectively prevented and controlled, the prevention and control effects are superior to those of a single agent, the prevention and control time is long, and no adverse effect is caused to target crops in the application range of experiments.
Application example of dod-limonene, active ingredient B and efficacy test of compound of dodecene and active ingredient B for preventing and controlling pepper beet armyworm
The experiment is arranged in Changan area of Xian city of Shaanxi province, the conventional spraying method is adopted in the experiment, the pest damage index of the pepper beet armyworm is investigated before the pesticide is applied in the initial stage of pest damage occurrence, the pest damage index is investigated 10 days, 30 days and 60 days after the pesticide application, and the control effect is calculated. The experimental results are shown below:
TABLE 14 d-limonene, active ingredient B and its built drug effect test for preventing and treating pepper beet armyworm
As can be seen from Table 14, the d-limonene can effectively prevent and control the pepper beet armyworm after being compounded with the active ingredient B, the prevention and control effects are superior to those of a single agent, and the prevention and control time is long. Has no adverse effect on target crops in the application range of the test.
Application example undec-limonene, active ingredient B and efficacy test of compound composition for controlling tomato bemisia tabaci
The experiment is arranged in a near-wei region of Weinan city in Shanxi province, the conventional spraying method is adopted in the experiment, the insect pest indexes of the tomato powder are investigated before the pesticide is applied in the initial stage of insect pest occurrence, the insect pest indexes are investigated 10 days, 30 days and 60 days after the pesticide is applied, and the control effect is calculated. The experimental results are shown below:
TABLE 15 d-limonene, active ingredient B and its built-up efficacy test for controlling tomato Bemisia tabaci
As can be seen from Table 15, the d-limonene can effectively prevent and control the tomato bemisia tabaci after being compounded with the active ingredient B, the prevention and control effects are superior to those of a single agent, and the prevention and control time is long. Has no adverse effect on target crops in the application range of the test.
Use example Doudu-limonene, active ingredient B and drug effect test of compound of active ingredient B for preventing and treating tea leafhoppers
The experiment is arranged in Yaan city of Sichuan province, and the conventional spraying method is adopted in the experiment, the insect pest indexes of the tea tree tea lesser leafhoppers are investigated before the pesticide is applied, the pesticide is applied at the initial stage of insect pest occurrence, and the insect pest indexes are investigated 10 days, 30 days and 60 days after the pesticide is applied, and the control effect is calculated. The experimental results are shown below:
TABLE 16D-limonene, active ingredient B and its built tea lesser leafhopper prevention and cure drug effect test
As can be seen from Table 16, the d-limonene can effectively prevent and control tea plant tea leafhoppers after being compounded with the active ingredient B, the prevention and control effects are superior to those of a single agent, and the prevention and control time is long. Has no adverse effect on target crops in the application range of the test.
The efficacy test of the tridecyl-limonene, the active ingredient B and the compound thereof in preventing and controlling rice leaf rollers of the application example
The experiment is arranged in suburbs of Changsha city, Hunan province, the conventional spraying method is adopted in the experiment, the rice leaf-rolling borer pest indexes are investigated before pesticide application, the pesticide application is carried out at the initial stage of pest occurrence, and the pest indexes are investigated 10 days, 30 days and 60 days after the pesticide application and the control effect is calculated. The experimental results are shown below:
TABLE 17D-limonene, active ingredient B and test of efficacy of compound thereof on preventing and controlling rice leaf rollers
As can be seen from Table 17, the d-limonene can effectively prevent and control rice leaf rollers after being compounded with the active ingredient B, the prevention and control effects are superior to those of a single agent, and the prevention and control time is long. Has no adverse effect on target crops in the application range of the test.
Experiments in different places around the country show that the synergistic control effect of the d-limonene, the picrinin, the osthole, the oxymatrine, the chamaejasmine, the tea saponin and the stemonine on common pests such as aphids, psylla chinensis, two-spotted spider mites, tea lesser leafhoppers, cabbage caterpillars, whiteflies, scale insects, armyworms, flea beetles, cotton bollworms, thrips, leafhoppers, asparagus caterpillars, diamond back moths, rice planthoppers, chilo suppressalis, rice leaf rollers, tryporyza incertulas or prodenia litura and the like of various crops after the d-limonene, the cnidium fruticosi, the cnidium fruit, the cnidium lactone, the matrimony moth, the spodoptera litura and the like is more than 95 percent, is better than the single-dose control effect, and the effect is obvious.
Claims (6)
1. An insecticidal composition comprising d-limonene, characterized in that: the effective active ingredients comprise an active ingredient A and an active ingredient B, the active ingredient A is d-limonene, the active ingredient B is any one of celastrus angulatus, cnidium lactone, oxymatrine, chamaejasmine, tea saponin and stemonine, and the weight ratio of the active ingredient A to the active ingredient B is 1: 80-80: 1.
2. The insecticidal composition of claim 1, wherein: the weight ratio of the active ingredient A to the active ingredient B is 1: 40-40: 1.
3. The insecticidal composition of claim 2, wherein: the weight ratio of the d-limonene to the active component B is 1: 20-20: 1.
4. An insecticidal composition according to any one of claims 1 to 3, characterized in that: the composition can be made into soluble liquid, water dispersible granule, microemulsion, aqueous emulsion and aqua.
5. Use of the pesticidal composition according to claim 4 for controlling pests on crops.
6. The use according to claim 5, characterized in that the pests to be controlled are aphids, psyllids, tetranychus urticae, cabbage caterpillars, tea lesser leafhoppers, whiteflies, scale insects, armyworms, flea beetles, cotton bollworms, thrips, leafhoppers, beet armyworms, diamond back moths, rice planthoppers, striped rice borers, rice leaf rollers, tryporyza incertulas or prodenia lituras.
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