CN114680120A - Insecticidal composition containing emamectin benzoate and cinnamaldehyde - Google Patents
Insecticidal composition containing emamectin benzoate and cinnamaldehyde Download PDFInfo
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- CN114680120A CN114680120A CN202011570216.3A CN202011570216A CN114680120A CN 114680120 A CN114680120 A CN 114680120A CN 202011570216 A CN202011570216 A CN 202011570216A CN 114680120 A CN114680120 A CN 114680120A
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- CN
- China
- Prior art keywords
- cinnamaldehyde
- emamectin benzoate
- insecticidal composition
- composition containing
- thrips
- Prior art date
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- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 title claims abstract description 43
- 229940117916 cinnamic aldehyde Drugs 0.000 title claims abstract description 43
- KJPRLNWUNMBNBZ-UHFFFAOYSA-N cinnamic aldehyde Natural products O=CC=CC1=CC=CC=C1 KJPRLNWUNMBNBZ-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 230000000749 insecticidal effect Effects 0.000 title claims abstract description 16
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- 238000011156 evaluation Methods 0.000 description 1
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000005089 fruit drop Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229960003692 gamma aminobutyric acid Drugs 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- CRVVHBFLWWQMPT-UHFFFAOYSA-N naphthalene-1-sulfonic acid;sodium Chemical compound [Na].C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 CRVVHBFLWWQMPT-UHFFFAOYSA-N 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000001738 pogostemon cablin oil Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000473 propyl gallate Substances 0.000 description 1
- 235000010388 propyl gallate Nutrition 0.000 description 1
- 229940075579 propyl gallate Drugs 0.000 description 1
- 239000010666 rose oil Substances 0.000 description 1
- 235000019719 rose oil Nutrition 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 239000004250 tert-Butylhydroquinone Substances 0.000 description 1
- 235000019281 tert-butylhydroquinone Nutrition 0.000 description 1
- 230000001018 virulence Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- A01N35/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical
- A01N35/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having two bonds to hetero atoms with at the most one bond to halogen, e.g. aldehyde radical containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses an insecticidal composition containing emamectin benzoate and cinnamaldehyde. The weight ratio of the emamectin benzoate to the cinnamaldehyde is 1: 1-20, wherein the total weight of the emamectin benzoate and the cinnamaldehyde accounts for 5-60% of the composition. The emamectin benzoate and cinnamaldehyde composition can be prepared into one of a water suspending agent, a dispersible oil suspending agent, an aqueous emulsion, a microemulsion or a water dispersible granule according to the actual application requirement, and is used for controlling eggplant thrips.
Description
Technical Field
The invention relates to an insecticidal composition containing emamectin benzoate and cinnamaldehyde, which takes the emamectin benzoate and the cinnamaldehyde as effective components and is used for preventing and treating eggplant thrips.
Background
Eggplant is one of the common vegetable varieties in China. In the eggplant planting process, thrips is a main insect pest which harms eggplants. The thrips sucks the juice of heart leaves, tender stems and young fruits by adult and nymphs, so that tender buds and leaves of the damaged plants are curled and contracted, the heart leaves cannot be unfolded, and the clustering phenomenon occurs; the young fruit is deformed, and fruit drop is caused when the young fruit is serious. The damaged peel is rough and has spots, little fuzz, or has brown ripples, or the melon peel is covered with 'rusty peel' and is in deformity.
The English name of emamectin benzoate: emamectin Benzoate. Chemical name: 4 '-epi-methylamino-4' -deoxyabamectin B1 benzoate. The emamectin benzoate has stomach toxicity and contact killing effects, gamma-aminobutyric acid is stimulated to be released by interfering the neurophysiological activity, the pests have paralysis after contacting, do not move or eat, die in 1-2 days, and have high activity on lepidoptera and thysanoptera pests. The pesticide has incomparable activity with other pesticides when being used on economic crops such as vegetables, tea, fruit trees and the like.
Cinnamaldehyde occurs naturally in essential oils such as cinnamon oil, cinnamon bark oil, patchouli oil, hyacinth oil and rose oil. The cinnamaldehyde has strong contact activity on pests such as thrips, aphids, citrus red spiders and the like, can cause the pests to be dehydrated and killed, and has no related report in the field of pesticides at present.
The natural plant essential oil is extracted and introduced as a pesticide variety, is used for preventing and treating plant diseases and insect pests in agriculture, and is one of approaches for solving agricultural resistance plant diseases and insect pests. By screening pesticide formulas, reasonable formulas are screened out, the actual prevention and control effect can be effectively improved, the dosage is reduced, the cost is reduced, the generation of pest resistance to pesticides is delayed, and the method is an important means for agricultural comprehensive treatment. The inventor of the invention has conducted intensive research on formulation screening of emamectin benzoate and cinnamaldehyde, finds that the blending of emamectin benzoate and cinnamaldehyde has an obvious synergistic effect on eggplant thrips within a certain blending proportion range, and completes the invention through further research.
The application of the composition of emamectin benzoate and cinnamaldehyde is not reported at present.
Disclosure of Invention
The invention aims to provide a composition containing emamectin benzoate and cinnamaldehyde, which has high efficiency and low toxicity and can effectively prevent and treat agricultural pests.
In order to solve the problems, the technical scheme adopted by the invention is as follows: a composition containing emamectin benzoate and cinnamaldehyde and a pesticide auxiliary agent are disclosed, wherein the weight part ratio of the emamectin benzoate to the cinnamaldehyde is 1: 1-20, wherein the weight percentage of the total weight of emamectin benzoate and cinnamaldehyde in the pesticide composition is 5-60%.
The insecticidal composition containing emamectin benzoate and cinnamaldehyde can be prepared into one of a water suspending agent, a dispersible oil suspending agent, an aqueous emulsion, a microemulsion or a water dispersible granule according to a method known by a person skilled in the art.
The insecticidal composition containing emamectin benzoate and cinnamaldehyde also contains an auxiliary agent required for preparing an agricultural chemical preparation, wherein the auxiliary agent is one or a mixture of a plurality of solvents, emulsifiers, wetting agents, stabilizers, dispersants, thickeners, pH regulators, defoaming agents, antifreezing agents, filling agents and the like, is a known substance, is various auxiliary agents commonly used in agricultural chemical preparations, can be changed according to different conditions, and is not particularly limited.
The insecticidal composition containing emamectin benzoate and cinnamaldehyde is used for controlling eggplant thrips.
The insecticidal composition containing emamectin benzoate and cinnamaldehyde provided by the invention is usually used by a spraying method, and other application technologies applied in agriculture can be adopted according to needs.
The composition containing emamectin benzoate and cinnamaldehyde provided by the invention has the following beneficial effects:
1. the insecticidal composition provided by the invention shows an obvious synergistic effect in a certain proportioning range, the control effect of the composition is obviously improved compared with that of a single agent, the using dosage of pesticide is reduced, the using times of the pesticide are reduced, the using cost is reduced, and the adverse effect of the pesticide on the ecological environment is reduced.
2. The effective components of the insecticidal composition provided by the invention are emamectin benzoate and cinnamaldehyde. The two effective components have incomplete action mechanisms, can overcome the defect that the resistance is easy to generate after long-term single use, prolong the service life of the medicament and have important significance for comprehensive treatment of the resistance.
3. The insecticidal composition provided by the invention has the advantages of quick drug effect exertion, long lasting period, low use cost, convenience in use, time and labor saving, and great economic and social benefits in popularization and application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more concise and clearer, the present invention is described with reference to the following specific embodiments, but the present invention is by no means limited to these embodiments. The following description is only a preferred embodiment of the present invention, and is only for the purpose of describing the present invention, and should not be construed as limiting the scope of the present invention. It should be understood that any modifications, equivalents, and improvements made within the spirit and principle of the present invention should be included within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
The contents described in the examples are all percentages by weight.
Formulation examples: the preparation method of the pesticide preparation of the composition of the invention
The pesticide composition can be prepared into water suspending agent, dispersible oil suspending agent, aqueous emulsion, microemulsion or water dispersible granule which are suitable for agriculture by using a known method. The following description is only a preferred embodiment of the present invention, and is only for the purpose of explanation, and should not be construed as limiting the scope of the present invention.
Formulation example 1:
weighing 2 g of emamectin benzoate, 40 g of cinnamaldehyde, 4 g of sodium butylnaphthalene sulfonate, 4 g of sodium lignosulfonate, 3 g of propylene glycol, 3 g of xanthan gum, 2 g of methanol and 1 g of potassium hydroxide, and supplementing water to 100 g. Mixing the materials, and grinding the mixture in a ball mill for 2-3 hours to ensure that the particle diameter is less than 5mm, thus obtaining the 42% emamectin benzoate-cinnamaldehyde water suspending agent.
Formulation example 2:
weighing 2 g of emamectin benzoate, 30 g of cinnamaldehyde, 15 g of sodium dodecyl sulfate, 7 g of polyoxyethylene fatty acid ester, 5 g of dioctyl sodium sulfosuccinate, 3 g of xanthan gum and methyl oleate, and supplementing to 100 g. Dissolving the components into a uniform oil phase, and mixing under high-speed stirring to obtain the 32% emamectin benzoate and cinnamaldehyde dispersible oil suspending agent.
Formulation example 3:
weighing 2 g of emamectin benzoate, 20 g of cinnamaldehyde, 13 g of trimethylbenzene, 13 g of sorbitan fatty acid ester, 3 g of epoxidized soybean oil, 3 g of glycerol, 2 g of silicone oil, 5 g of magnesium aluminum silicate and water to supplement to 100 g. Adding pesticide active ingredients, an emulsifier and a defoaming agent into a solvent in sequence according to a certain proportion, fully stirring and dissolving to prepare a high-concentration mother solution, adding deionized water, uniformly stirring, adding an antifreezing agent, and preparing the 22% emamectin benzoate-cinnamaldehyde aqueous emulsion after analysis and inspection are qualified.
Formulation example 4:
weighing 5 g of emamectin benzoate, 25 g of cinnamaldehyde, 14 g of methylnaphthalene, 10 g of calcium dodecylbenzene sulfonate, 3 g of epichlorohydrin, 3 g of acetic acid and water to supplement to 100 g. The active ingredients are completely dissolved by using a solvent and a cosolvent, then other auxiliary agents are added and uniformly mixed, finally water is added, and the mixture is fully stirred to prepare the 30 percent methylamino abamectin benzoate-cinnamaldehyde microemulsion.
Formulation example 5:
weighing 5 g of emamectin benzoate, 15 g of cinnamaldehyde, 10 g of methylnaphthalene, 10 g of calcium dodecylbenzene sulfonate, 2 g of epichlorohydrin, 2 g of acetic acid and 100 g of water. The active ingredients are completely dissolved by using a solvent and a cosolvent, then other auxiliary agents are added and uniformly mixed, finally water is added, and after full stirring, the 20% methylamino abamectin benzoate-cinnamaldehyde microemulsion is prepared.
Formulation example 6:
weighing 5 g of emamectin benzoate, 5 g of cinnamaldehyde, 3 g of naphthalene sulfonic acid condensate sodium salt, 4 g of alkyl naphthalene sulfonate, 2 g of magnesium chloride, 2 g of ammonium hydroxide, 1 g of methanol, 3 g of dibutyl phthalate and supplementing white carbon black to 100 g. The components are uniformly mixed, crushed by an ultramicro jet mill, kneaded, added into a fluidized bed granulation dryer for granulation, drying and screening, and then the 10 percent methylamino abamectin benzoate-cinnamaldehyde water dispersible granule is prepared.
The auxiliary agent is one or a mixture of several of a solvent, an emulsifier, a wetting agent, a stabilizer, a dispersing agent, a thickener, a pH regulator, a defoaming agent, an antifreezing agent, a filler and the like, is a known substance, is various auxiliary agents commonly used in pesticide preparations, can be changed according to different situations, and is not particularly limited. The solvent can be one or more of solvent oil S-200, xylene, trimethylbenzene, tetramethylbenzene, methylnaphthalene, methyl oleate, fatty acid methyl ester, pine-base oil, soybean oil, biodiesel, sec-butyl acetate, dimethyl carbonate, diesel oil, white oil, engine oil, N-methylpyrrolidone, etc. The emulsifier can be one or more of calcium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, triphenylethylphenol polyoxypropylene polyoxyethylene block polymer, dibenzyl biphenyl polyoxyethylene ether, phenethyl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, phenethyl phenol formaldehyde resin polyoxyethylene ether, phenethyl phenol polyoxypropylene polyoxyethylene ether, alkylaryl polyoxypropylene polyoxyethylene ether, phenethyl phenol formaldehyde resin polyoxyethylene ether, sorbitan fatty acid ester polyoxyethylene ether, natural fatty alcohol and ethylene oxide addition product, fatty acid and ethylene oxide condensation product, polyoxyethylene fatty acid ester, phenethyl phenol polyoxyethylene ether polyoxypropylene ether and the like. The wetting agent can be one or more of sodium butylnaphthalene sulfonate, sodium dodecyl sulfate, fatty alcohol polyoxyethylene (6-7) ether, dioctyl sodium sulfosuccinate, Morwet EFW, alkyl naphthalene sulfonate, soapberry powder, sodium lauryl sulfate, etc. The disintegrant may be one or more of compound sodium nitrophenolate, sodium bicarbonate, magnesium chloride, aluminum chloride, sodium chloride, urea, ammonium sulfate, bentonite, etc. The dispersant may be one or more of polycarboxylate, formaldehyde condensate of methyl naphthalene sulfonic acid sodium, sodium lignosulfonate, calcium lignosulfonate, p-methoxy fatty amido benzene sulfonic acid, desugarized and classified sodium lignosulfonate, sodium naphthalene sulfonic acid condensate, sodium alkyl naphthalene sulfonic acid condensate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfuric acid, etc. The thickener can be one or more of xanthan gum, magnesium aluminum silicate, bentonite, white carbon black, etc. The pH regulator can be one or more of ammonium hydroxide, potassium hydroxide, sodium hydroxide, hydrochloric acid, acetic acid, citric acid, phosphoric acid, etc. The stabilizer can be one or more of dibutyl phthalate, hexamethylene diisocyanate, epoxidized soybean oil, epichlorohydrin, butyl hydroxy anisole, dibutyl hydroxy toluene, propyl gallate, tert-butyl hydroquinone, etc. The defoaming agent can be one or more of silicone compounds, methanol, silicone oil, azone, polydimethylsiloxane and the like. The antifreezing agent may be one or more of glycerol, ethylene glycol, propylene glycol, sorbitol, polyethylene glycol, etc. The carrier can be one or more of kaolin, diatomite, bentonite, white carbon black, light calcium carbonate, attapulgite, clay, talcum powder, quartz sand, starch, alkyl polyglycoside, urea, potassium chloride, ammonium chloride, etc. The slow release agent can be one or two of polyvinyl alcohol and Arabic gum. The preservative may be sodium benzoate. The binder can be one or two of polyethylene glycol and industrial gelatin.
The compounding of different kinds of pesticide active ingredients is an effective measure for solving the problems of cost, resistance and the like in the use process of a single pesticide. When different kinds of pesticide active ingredients are mixed, three types of action, namely additive action, synergistic action and antagonistic action, are generally shown. But the specific combination of actions can only be known by a large number of bioassay tests.
The composition has obvious coordination and synergism on eggplant thrips, and can be clearly seen from the following results of toxicity determination tests.
Bioassay embodiments
According to a bioassay standard method NY/T1154.1-2006, a dropping method is adopted: collecting thrips on the eggplant leaves, and placing the collected thrips in a glass tube for later use. Anaesthetizing eggplant thrips with diethyl ether, selecting thrips with consistent insect age, placing the thrips in a culture dish, dripping 0.1 microliter of the thrips in the dish by a micro dripping device, and feeding fresh eggplant leaves after the treatment is finished. Each 20 thrips was spotted repeatedly, 4 replicates were set for each treatment, and the treatment with the corresponding organic solvent without the agent was set as a control.
The test data were counted after 1 day, and the mortality (%) and corrected mortality (%) were calculated. If the control mortality is lower than 5%, no correction is needed; control mortality between 5% and 20% requires correction; control mortality was greater than 20%, and the test required redo.
Respectively establishing virulence regression equations by taking the logarithmic value of the medicament concentration (mg/L) as an independent variable x and the probability value of correcting the death rate as a dependent variable y, and calculating LC of single dose and mixed doses in each proportion by adopting DPS software50And the co-toxicity coefficient of the mixed agent.
The synergistic effect evaluation method refers to a biological standard method NY/T1154.7-2006, and evaluates the synergistic effect of the mixed medicament according to a co-toxicity coefficient method (CTC), namely that the CTC is less than or equal to 80 and is antagonistic, the CTC is less than 80 and is additive, and the CTC is more than or equal to 120 and is synergistic.
The Theoretical Toxicity Index (TTI) of the mixed preparation is the toxicity index of the medicament A multiplied by 100 percent of the medicament A in the mixed preparation and the toxicity index of the medicament B multiplied by 100 percent of the medicament in the mixed preparation
TABLE 1 determination of indoor combined toxicity of emamectin benzoate and cinnamaldehyde on eggplant thrips
As can be seen from Table 1, when the emamectin benzoate and the cinnamaldehyde are compounded in the range of 1: 1-20, the co-toxicity coefficient (CTC) is greater than 120, and the synergistic effect is shown on eggplant thrips. The compound pesticide is characterized in that the emamectin benzoate and the cinnamaldehyde are mixed according to the proportion of 1:10, the co-toxicity coefficient to eggplant thrips is highest, and the compound pesticide has rationality and feasibility.
Example of the field: the composition is used for field test for controlling eggplant thrips
The test site is located in Haizhou Chenjiang town happiness village in Huizhou, Guangdong province, 5% of emamectin benzoate ME and 20% of cinnamaldehyde ME are used as reference medicines, the preparation of the preparation example adopts a spraying method, the eggplant plants are sprayed after the preparation is diluted by water, and the liquid spraying amount per mu is 30L. The experiment is provided with 9 treatments, each treatment is repeated for 4 times, the population base number of eggplant thrips before and 1 day and 3 days after the application is respectively counted, the control effect is calculated, and the experiment result is shown in table 2.
Calculating the formula:
TABLE 2 field test results of combined emamectin benzoate and cinnamaldehyde control of eggplant thrips
As can be seen from the table 2, the combination of the emamectin benzoate and the cinnamaldehyde in the preparation examples 1-6 has better control effect on the eggplant thrips compared with the control single-dose treatment. The compound of the emamectin benzoate and the cinnamaldehyde can reduce the population base of the eggplant thrips, reduce the using dose of the pesticide, reduce the influence of the pesticide on the environment and reduce the pesticide cost.
Claims (5)
1. An insecticidal composition containing emamectin benzoate and cinnamaldehyde, wherein the weight ratio of the effective components of the emamectin benzoate to the cinnamaldehyde is 1:1 to 20.
2. The insecticidal composition according to claim 1, comprising emamectin benzoate and cinnamaldehyde in a weight ratio of 1:1 to 10.
3. The insecticidal composition according to claim 1, wherein the sum of the weight of emamectin benzoate and the weight of cinnamaldehyde is 5-60% of the composition.
4. The insecticidal composition containing emamectin benzoate and cinnamaldehyde according to claim 1, which can be prepared into one of an aqueous suspension, a dispersible oil suspension, an aqueous emulsion, a microemulsion or a water dispersible granule.
5. The insecticidal composition containing emamectin benzoate and cinnamaldehyde according to claim 1, which is applied to controlling eggplant thrips.
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