CN114052035B - Insecticidal composition containing emamectin benzoate B2a benzoate - Google Patents
Insecticidal composition containing emamectin benzoate B2a benzoate Download PDFInfo
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Abstract
The invention discloses an insecticidal composition containing emamectin benzoate B2a, belonging to the technical field of pesticide preparation. The insecticidal composition of the invention contains a component A and a component B. Wherein the component A is emamectin benzoate B2a, and the component B is selected from one of fluoro alkene sulfone, fluoro thiazole acyl hydroxylamine, trifluoro imidazole amide, trifluoro nematocide, amino-oligosaccharin and nerolidol. The insecticidal composition provided by the invention has the advantages that the control effect on plant nematodes is remarkably improved, the single selection pressure on the nematodes is reduced, the generation of nematode resistance is favorably overcome, the generation speed of the nematode resistance is delayed, and the popularization value is great.
Description
Technical Field
The invention belongs to the technical field of pesticide preparation, and particularly relates to an insecticidal composition containing emamectin benzoate B2a benzoate.
Background
Plant parasitic nematodes are pathogenic microorganisms with great harm, are wide in distribution range, various in variety and strong in environmental adaptability, and severely restrict the development of agricultural economy.
Therefore, in order to effectively control diseases and protect the ecological safety of the environment, reduce the pesticide dosage and reduce the pesticide residue while effectively controlling the harm of the nematodes, the research and the development of the pollution-free biological pesticide which has good killing activity on plant nematodes and long lasting effect has very important significance.
The emamectin benzoate B2a is a macrolide disaccharide pesticide with insecticidal, acaricidal and aphid killing activity. The product has higher control effect on various agricultural pests, especially has ultrahigh insecticidal activity on aphids and parasites, and is popularized and applied. The applicant finds in research that emamectin benzoate B2a has high activity on nematodes. After being compounded with other nematicides according to a specific proportion, the compound pesticide has extremely remarkable synergistic effect. Therefore, the compound preparation of emamectin benzoate B2a needs to be researched to enhance the drug effect, prolong the effective drug efficacy and reduce the dosage.
Disclosure of Invention
Aiming at the problems of high toxicity, unsatisfactory insecticidal effect and poor persistence of the insecticidal composition in the prior art, the invention provides the insecticidal composition which can enhance the drug effect and reduce the dosage.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an insecticidal composition containing emamectin benzoate B2a comprises a component A and a component B, wherein the component A is emamectin benzoate B2a, and the component B is selected from one of fulvene sulfone, fluconazole hydroxylamine, triflumidine amide, trifloxystrobin, amino-oligosaccharin and nerolidol.
The technical scheme of the invention is further improved as follows: the weight ratio of the component A to the component B of the insecticidal composition containing emamectin benzoate B2a is 1:60-60: 1.
The technical scheme of the invention is further improved as follows:
the weight ratio of the emamectin benzoate B2a to the fluoro-ene sulfone is 30:1-1: 30;
the weight ratio of the emamectin benzoate B2a to the fluxapyroxad is 30:1-1: 30;
the weight ratio of the emamectin benzoate B2a to the triflumidine amide is 60:1-1: 20;
the weight ratio of the emamectin benzoate B2a to the trifloxystrobin is 20:1-1: 20;
the weight ratio of the emamectin benzoate B2a to the amino-oligosaccharin is 20:1-1: 20;
the weight ratio of the emamectin benzoate B2a to the nerolidol is 30:1-1: 20.
The technical scheme of the invention is further improved as follows: the weight ratio of the emamectin benzoate B2a to the nerolidol is 2:1-1: 10.
The technical scheme of the invention is further improved as follows: the formulation of the insecticidal composition is one of microemulsion, missible oil, aqueous emulsion, suspension emulsion, oil suspending agent and granules.
The technical scheme of the invention is further improved as follows: the application mode is root irrigation, spraying, broadcasting, furrow application, hole application or seed dressing.
The technical scheme of the invention is further improved as follows: the insecticidal composition is used for preventing and controlling plant nematodes and soil insects, namely Chinese chive maggots.
Due to the adoption of the technical scheme, the invention has the following technical effects:
compared with the prior art, the insecticidal composition provided by the invention has the advantages that the control effect on plant nematodes and Chinese chive maggots is obviously improved by compounding the emamectin benzoate B2a with other medicaments, the action mechanisms of the active ingredients in the insecticidal composition are different from each other, the single selection pressure on the nematodes is reduced, and the generation of nematode resistance is favorably overcome and the generation speed of nematode resistance is delayed.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The nematicidal composition containing emamectin benzoate B2a is a microemulsion and is prepared by the following steps: 3.34% of methylamino abamectin B2a benzoate, 1.66% of nerolidol, 5% of dimethylacetamide, 15% of diethylene glycol monoethyl ether, 5% of propylene glycol, 15% of oleic acid polyoxyethylene ether phosphate and 5% of calcium dodecyl benzene sulfonate are mixed and stirred uniformly, and then deionized water is added to complement 100% and stirred uniformly, so that the 5% methylamino abamectin B2a benzoate-nerolidol microemulsion is obtained.
Nerolidol in this embodiment can be replaced with any of fluensulfone, fluxapyroxad, triflumidine amide, trifloxystrobin, and amino-oligosaccharin to form a new embodiment.
Example 2
A nematicidal composition containing emamectin benzoate B2a is an aqueous emulsion and is prepared according to the following processes: 3.33 percent of methylamino abamectin B2a benzoate, 6.67 percent of nerolidol, 4 percent of 5# white oil, 12 percent of diethylene glycol monobutyl ether acetate, 15 percent of N, N-dimethyl decanamide, 4 percent of octyl phenyl polyoxyethylene ether, 5 percent of isotridecyl alcohol polyoxyethylene ether and 2 percent of calcium dodecyl benzene sulfonate are taken, mixed and stirred uniformly, added with deionized water to complement 100 percent, and sheared at high speed to obtain 10 percent of methylamino abamectin B2a benzoate-nerolidol aqueous emulsion.
Nerolidol in this embodiment can be replaced with any of fluensulfone, fluxapyroxad, triflumidine amide, trifloxystrobin, and amino-oligosaccharin to form a new embodiment.
Example 3
A nematicidal composition containing emamectin benzoate B2a is a suspending emulsion, and is prepared according to the following process: taking 16% of nerolidol, 6% of Solvesso 150 solvent oil and 9% of N, N-dimethyl capramide, and uniformly mixing and stirring the mixture to obtain an oil phase; 4% of methylamino abamectin B2a benzoate, 4% of fatty alcohol-polyoxyethylene ether phosphate triethanolamine hydrochloride, 2% of hydroxy polyethylene oxide block copolymer, 5% of propylene glycol, 0.2% of xanthan gum and 100% of deionized water are mixed uniformly and ground by a sand mill to be used as a water phase. Slowly adding the oil phase into the water phase under the stirring condition, and performing high-speed shearing to obtain the 20% emamectin benzoate B2a benzoate-nerolidol suspension emulsion.
Nerolidol in this embodiment can be replaced with any of fluensulfone, fluxapyroxad, triflumidine amide, trifloxystrobin, and amino-oligosaccharin to form a new embodiment.
Example 4
A nematicidal composition containing emamectin benzoate B2a is an emulsifiable concentrate, and comprises the following components: 5.7% of emamectin benzoate B2a, 34.3% of nerolidol, 15% of dimethylacetamide, 12% of castor oil polyoxyethylene ether, 8% of oleic acid amide polyoxyethylene ether phosphate, 12% of castor oil and N, N-dimethyldecanamide. The components are mixed and stirred evenly to obtain 40 percent of methylamino abamectin B2a benzoate-nerolidol missible oil.
Example 5
The nematicidal composition containing emamectin benzoate B2a is an oil suspending agent in the dosage form of the following components: 9% of methylamino abamectin B2a benzoate, 72% of nerolidol, 6% of glyceryl monostearate, 2% of castor oil polyoxyethylene ether, 1.5% of polyacrylate, 1% of organic bentonite and methyl oleate. The components are mixed evenly and ground by a sand mill to obtain the 81 percent methylamino abamectin B2a benzoate-nerolidol oil suspending agent.
Example 6
A nematicidal composition containing emamectin benzoate B2a is a granule, and comprises the following components: 1.4% of methylamino abamectin B2a benzoate, 14% of nerolidol, 6% of alkylphenol polyoxyethylene ether sulfonate, 0.1% of polyvinyl alcohol, 1% of polyvinyl acetate, 15% of white clay and attapulgite. The raw materials are uniformly mixed in a mixing tank, and are extruded, granulated, dried and screened to obtain 15.4 percent of methylamino abamectin B2a benzoate-nerolidol granules.
Nerolidol in this embodiment can be replaced with any of fluensulfone, fluxapyroxad, triflumidine amide, trifloxystrobin, and amino-oligosaccharin to form a new embodiment.
Example 7
The difference between the embodiment and the embodiment 4 is that the proportion of emamectin benzoate B2a in the component is 3.6%, the proportion of nerolidol is 36.4%, and the rest components and the proportion thereof are the same as the embodiment 4.
Comparative example 1
The difference between the comparative example and the example 2 is that the proportion of the emamectin benzoate B2a in the components is 10 percent, nerolidol is not included, and the rest components and the proportion thereof are the same as the example 2.
Comparative example 2
The difference between the comparative example and the example 2 is that the nerolidol proportion in the components is 10 percent, and the emamectin benzoate B2a is not included, and the other components and the proportion thereof are the same as the example 2.
The above examples are only partial representatives of the present invention, and the active ingredients, contents, kinds of adjuvants and amounts of the examples can be adjusted according to the actual compound dosage to obtain new examples.
Indoor toxicity assay
According to the Sun Yunpei method, the synergistic effect of the mixed medicaments is evaluated according to the co-toxicity coefficient (CTC), namely the CTC is less than or equal to 80 and is a synergistic antagonistic effect, the CTC is less than 80 and is less than 120 and is a synergistic effect, and the CTC is more than or equal to 120. Measured virulence index (ATI) ═ (EC 50 for standard agents/EC 50 for test agents) x 100; the theoretical virulence index TTI is the virulence index of the A medicament multiplied by the percentage of the A medicament in the mixed preparation plus the virulence index of the B medicament multiplied by the percentage of the B medicament in the mixed preparation; co-toxicity coefficient (CTC) × 100 [ measured toxicity index (ATI) of the mixture)/Theoretical Toxicity Index (TTI) of the mixture ].
Indoor combined virulence determination tests were performed on meloidogyne incognita. By direct contact killing (Vanda Rohdea, 1994), adding 1ml of 200 heads/ml of newly hatched second-instar larvae suspension of Meloidogyne incognita into each high-temperature sterilized culture dish, and adding 1ml of different concentrationsThe dilutions, controls, were supplemented with 1ml of sterile water, each treatment was repeated 3 times, and incubated in an incubator at 25 ℃. After 24h, observing the death condition of the nematodes under a microscope, counting the death number and calculating the death rate. Calculated by the virulence regression equation v ═ a + bx, and subjected to the chi-square test. Determination of lethal medium-concentration LC of test agent by machine value analysis method 50 And 95% confidence limits, see the following pharmacodynamic examples.
Pharmacodynamic example 1 Combined virulence of emamectin benzoate B2a and Fluorenylsulfone
TABLE 1
Remarking: a is emamectin benzoate B2a benzoate, B is fluoroenoyl sulfone
The results in table 1 show that the weight ratio of emamectin benzoate B2a to fluoroenoyl sulfone is in the range of 30:1-1:30, the co-toxicity coefficients are all larger than 120, and the partial ratio even exceeds 150, which shows that the two have obvious synergy.
Pharmacodynamic example 2 Combined virulence of emamectin benzoate B2a and Fluxapyroxad
TABLE 2
Remarking: a is emamectin benzoate B2a benzoate, B is fluxapyroxad hydroxylamine
The results in table 2 show that the weight ratio of the emamectin benzoate B2a to the fluxapyroxad is within the range of 30:1-1:30, the co-toxicity coefficients are both greater than 120, and the synergy of the emamectin benzoate B2a and the fluxapyroxad is obvious.
Pharmacodynamic example 3 Combined virulence of emamectin benzoate B2a and Trifluoropyridyl amide
TABLE 3
Remarking: a is emamectin benzoate B2a benzoate, B is triflumimidine amide
The results in table 3 show that the weight ratio of the emamectin benzoate B2a to the trifluropicolinamide is in the range of 60:1-1:20, the co-toxicity coefficients are both greater than 120, and the synergy of the emamectin benzoate B2a and the trifluropicolinamide is obvious.
Pharmacodynamic example 4 Combined virulence of emamectin B2a benzoate and trifloxystrobin
TABLE 4
Remarking: a is emamectin benzoate B2a benzoate, B is trifloxystrobin
The results in table 4 show that the weight ratio of the emamectin benzoate B2a to the trifloxystrobin is within the range of 20:1-1:20, the co-toxicity coefficients are both greater than 120, and the synergy of the emamectin benzoate B2a and the trifloxystrobin is obvious.
Pharmacodynamic example 5 Combined virulence of Emamectin B2a benzoate and amino-oligosaccharins
TABLE 5
Remarking: a is emamectin benzoate B2a, and B is amino-oligosaccharin
The results in Table 5 show that the weight ratio of the emamectin benzoate B2a to the amino-oligosaccharin is within the range of 20:1-1:20, the co-toxicity coefficients are both greater than 120, and the synergy of the emamectin benzoate B2 and the amino-oligosaccharin is obvious.
Drug effect example 6
And (3) measuring indoor toxicity of the emamectin benzoate B2a and nerolidol.
The indoor toxicity test method is the same as the method. Because nerolidol is not a pesticide ingredient, it is inactive against meloidogyne incognita. The synergy of both was therefore evaluated using the synergy ratio SR. The test results are shown in table 6.
Ratio of potentiation SR-LC 50 value for the agent alone/LC 50 value for the agent and potentiator combination
TABLE 6 Combined virulence of emamectin benzoate B2a and nerolidol
Remarking: a is emamectin benzoate B2a benzoate, B is nerolidol; LC50 of the mixture in the table indicates the total mass concentration of A and B
As can be seen from Table 6, nerolidol itself has little insecticidal effect on Meloidogyne incognita, but nerolidol can significantly enhance the toxicity of emamectin benzoate B2a on Meloidogyne incognita. When the weight ratio of the two is within the range of 30:1-1:20, the synergy ratio SR is more than 1; and when the weight ratio of the two is 2:1-1:10, the synergy ratio SR even exceeds 3, wherein when the weight ratio of the two is 1:2, the synergy ratio SR reaches a maximum value of 4.76.
Drug efficacy example 7
And (3) measuring indoor toxicity of the emamectin benzoate B2a and nerolidol to the Chinese chive maggots.
By adopting a stomach poisoning contact method, 3 rd-instar larvae of Chinese chive maggots are taken as target objects, emamectin benzoate B2a benzoate and nerolidol are taken as test agents, and the agents are prepared into liquid medicines with different concentrations. Spreading clean filter paper in a culture dish with diameter of 8cm and agar below, and spreading on the filter paperDropping 1mL of prepared liquid medicine, cutting the false stem of the Chinese chives into small sections of about 2cm, respectively soaking the small sections in the liquid medicine with different dosages for 30s, taking out the small sections, absorbing redundant liquid medicine by using absorbent paper, placing the small sections on filter paper dropping the liquid medicine with the same dosage, then picking 3-year-old Chinese chive maggot larvae with the same size by using a writing brush in each culture dish for 3 times of repetition in 40 heads of each culture dish, and simultaneously setting clear water as blank control. Observing the survival amount of the Chinese chive maggots after 48 hours; calculated by the virulence regression equation v ═ a + bx, and subjected to the chi-square test. Determination of lethal medium-concentration LC of test agent by machine value analysis method 50 And its 95% confidence limit. Synergy was evaluated using the synergy ratio SR. The test results are shown in Table 7.
TABLE 7 Combined virulence of emamectin benzoate B2a and nerolidol on Bradysia odoriphaga
Remarking: a is emamectin benzoate B2a benzoate, B is nerolidol; LC50 of the mixture in the table indicates the total mass concentration of A and B
As can be seen from Table 7, nerolidol has almost no insecticidal effect on Chinese chive maggots, but the nerolidol can obviously enhance the toxicity of emamectin benzoate B2a on Chinese chive maggots. When the weight ratio of the two is within the range of 30:1-1:20, the synergy ratio SR is more than 1; and when the weight ratio of the two is 2:1-1:10, the synergy ratio SR even exceeds 2, wherein when the weight ratio of the two is 1:2, the synergy ratio SR reaches a maximum value of 2.75.
Test of field drug effect
Pharmacodynamic example 8 field control effect of emamectin benzoate B2a and nerolidol mixture formulation on tomato root-knot nematode
The test is carried out on a fixed-state tomato planting shed in Hebei Baoding city, the soil is loam, the soil moisture content is good, the fertility is moderate, and the root-knot nematode damage is serious. The experiment is totally provided with 9 treatments (the nematode harm in the treatment area is basically uniform, the ecological environment is the same), clear water is used as a contrast, each treatment is repeated for 4 times, and each treatment is randomly arranged. Area per cell is about 15m 2 Is determined per cell40 tomatoes with common growth vigor are planted, and the planting time is 8 months and 20 days in 2020. The method of root irrigation or spreading is adopted for reagent application. Root irrigation treatment on the transplanting day, root irrigation and pesticide application are carried out, the medicament is diluted by water, and each seedling is treated by 400ml of diluent; the spreading treatment is carried out before transplantation, the granules and fine soil are stirred evenly into poisonous soil according to the soil mixing amount of 15 kg/mu, the poisonous soil is spread evenly in a cell after the dosage is converted into the cell dosage, and the soil is mixed by a rake, and the medicament is buried to the depth of about 15 cm. And after spreading the toxic soil, transplanting and planting the tomato seedlings.
Sampling is carried out at 5 random points in each cell 2 months after the tomatoes are transplanted, 3 plants are taken at each point, 15 plants are taken in total, the damage degree of the tomatoes is evaluated according to the following root-knot nematode grading standard, and the disease index and the control effect are calculated.
The investigation method is carried out according to the pesticide field efficacy test criteria.
Level 0: no visible nodules or egg masses;
level 1: the total length of the root nodules accounts for 1% -24% of the total root length;
and 2, stage: the total length of the root nodules accounts for 25% -49% of the total root length;
and 3, level: the total length of the root nodules accounts for 50% -74% of the total root length;
4, level: the total length of the root nodules accounts for 75% -100% of the total root length;
disease index ═ Σ (number of disease roots at each stage × number of relative stage)/(total number of investigated plants × 4) × 100;
the preventing and treating effect (%) is (1-treatment disease index/control disease index) × 100.
TABLE 8 results of field experiments on control of tomato root knot nematode
Remarking: effective dose of emamectin benzoate B2a and nerolidol
The results in table 8 show that nerolidol (comparative example 2) has almost no control effect on tomato root-knot nematode, and emamectin benzoate B2a (comparative example 1) has control effect of 64.21%. And the control effect of the examples 1 to 6 is 79.76 to 87.67 percent, and the difference is obvious. The nerolidol is shown to remarkably enhance the control effect of emamectin benzoate B2a on the tomato root-knot nematode.
Pharmacodynamic example 9 field control effect of mixed preparation of emamectin benzoate B2a and nerolidol on meloidogyne cucumis
The root-knot nematode damage is serious in a test in a new county cucumber production base in Xinyang city of Henan province. The test field is convenient for irrigation and drainage, the soil fertility is moderate, and the cucumber variety is green and full of 06-8. Covering in a greenhouse for seedling, planting on the ridge after 10d of seedling age, wherein the row spacing is 0.45m and the plant spacing is 0.28 m. Area per cell is about 15m 2 60 cucumbers with common growth vigor are planted in each cell, and the planting time is 7 months and 30 days in 2020.
The experiment is totally provided with 9 treatments (the nematode harm in the treatment area is basically uniform, the ecological environment is the same), clear water is used as a contrast, each treatment is repeated for 4 times, and each treatment is randomly arranged. The investigation period was carried out after the last cucumber picking (80 d). Sampling is carried out at 5 random points in each cell, 3 plants are taken at each point, 15 plants are counted, the damage degree of the cucumbers is evaluated according to the grading standard of the root-knot nematodes, and the disease index and the prevention and treatment effect are calculated. The specific test method and the investigation and calculation method are the same as those in the example 8.
TABLE 9 test results for field control of meloidogyne cucumerinum
Remarking: the effective dosage is the total amount of emamectin benzoate B2a and nerolidol
The results in table 9 show that nerolidol (comparative example 2) has almost no control effect on meloidogyne cucumerinum, and emamectin benzoate B2a (comparative example 1) has control effect of 56.16%. And the control effect of the examples 1 to 6 is 75.86 to 87.19 percent, and the difference is obvious. The nerolidol is shown to remarkably enhance the control effect of emamectin benzoate B2a on the meloidogyne cucumerinum.
Pharmacodynamic example 10 field control effect of mixed preparation of emamectin benzoate B2a and nerolidol on Bradysia odoriphaga
The method is tested in a leek planting land of the shogaku in the area of Gao city in Shijiazhuang, Hebei province, the leek is planted in the land all the year round, the variety of the leek is Pingdui No. 2, and the damage of leek maggots is serious. The soil fertility of the test field is moderate, and the area of each district is about 30m 2 The experiment is totally provided with 9 treatments (the Chinese chive maggots in the treatment area are basically uniform in damage and same in ecological environment), clear water is used as a reference, each treatment is repeated for 4 times, and the treatments are randomly arranged. The application time is 9 months and 12 days in 2020, the application mode is fixed-point spraying, and the sprayer is a WS-18D knapsack electric sprayer. Diluting the medicine with 15L water, pouring into a sprayer medicine barrel, spraying the Chinese chive root stubbles one by using a spray head, and spraying 25mL of the medicine in each hole. And after the fixed-point spraying is finished, irrigating the test cell with big water immediately, wherein the water depth is 4-5 cm.
The number of plants affected and the number of survivors were examined 2 times before application and 14 and 24 days after application. The number of the damaged plants is investigated by using 10 piers in each row of 2 rows in the center of the cell, the number of healthy plants and the number of the damaged plants are counted, the number of survival openings is investigated by digging 5 piers of Chinese chives in the center of the cell, and the number of live maggots inside and outside the bulb is counted. The control effect and the plant protection effect are respectively calculated by the following formulas:
Control effect (%) (number of worms in control region-number of worms in treatment region)/number of worms in control region [. 100 ]
The plant protection effect (%) (damage rate after drug treatment in control area-damage storage rate after drug treatment in treatment area)/damage rate after drug treatment in blank control area + 100
The test results are shown in the following table.
TABLE 10 field test results for Chinese chive maggot control
Remarking: the effective dosage is the total amount of emamectin benzoate B2a and nerolidol
The results in Table 10 show that nerolidol (comparative example 2) has almost no control effect on the Chinese chive maggots, the control effect of emamectin benzoate B2a (comparative example 1)24d is 69.2%, and the plant protection effects of 14d and 24d are 43.6% and 61.3% respectively. The control effect of 24d of the examples 1-5 and 7 is between 87.2 and 98.6 percent, the plant protection effects of 14d and 24d are respectively between 61.2 to 75.3 and 82.7 to 92.5 percent, and the difference is obvious compared with a single agent. The nerolidol is shown to remarkably enhance the control effect of emamectin benzoate B2a on the Chinese chive maggots.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An insecticidal composition containing emamectin benzoate B2a, which is characterized in that: the pesticide comprises a component A and a component B, wherein the component A is emamectin benzoate B2a benzoate, the component B is nerolidol, and the weight ratio of the component A to the component B is 10:1-1: 20.
2. The insecticidal composition containing emamectin benzoate B2a according to claim 1, wherein the insecticidal composition comprises: the weight ratio of the emamectin benzoate B2a to the nerolidol is 2:1-1: 10.
3. The insecticidal composition containing emamectin benzoate B2a according to any one of claims 1-2, wherein: the formulation of the insecticidal composition is one of microemulsion, missible oil, aqueous emulsion, suspension emulsion, oil suspending agent and granules.
4. The use of an insecticidal composition according to any one of claims 1-2 comprising emamectin benzoate B2a, wherein: the insecticidal composition is used for preventing and controlling plant root-knot nematodes.
5. The use of an insecticidal composition according to claim 2 comprising emamectin benzoate B2a, wherein: the insecticidal composition is used for preventing and controlling soil insect chive maggots.
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| GB2457347A (en) * | 2008-01-16 | 2009-08-19 | Syngenta Participations Ag | Fungicidal compositions |
| CN109221184A (en) * | 2018-09-18 | 2019-01-18 | 河北威远生物化工有限公司 | A kind of Pesticidal combination containing emamectin benzoate B2a/B2b benzoate and its preparation and application |
| WO2020064564A1 (en) * | 2018-09-26 | 2020-04-02 | Syngenta Participations Ag | Insecticidal compounds |
| CN111084190A (en) * | 2019-12-04 | 2020-05-01 | 河北威远生物化工有限公司 | Insecticidal composition containing emamectin benzoate B2a and application thereof |
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| CN105638689A (en) * | 2016-03-03 | 2016-06-08 | 陕西上格之路生物科学有限公司 | Nematicidal composition with fluensulfone and emamectin benzoate |
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| CN109006821A (en) * | 2018-08-17 | 2018-12-18 | 山东省联合农药工业有限公司 | A kind of complex composition containing trifluoro sassen and its dosage form and application |
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| GB2457347A (en) * | 2008-01-16 | 2009-08-19 | Syngenta Participations Ag | Fungicidal compositions |
| CN109221184A (en) * | 2018-09-18 | 2019-01-18 | 河北威远生物化工有限公司 | A kind of Pesticidal combination containing emamectin benzoate B2a/B2b benzoate and its preparation and application |
| WO2020064564A1 (en) * | 2018-09-26 | 2020-04-02 | Syngenta Participations Ag | Insecticidal compounds |
| CN111084190A (en) * | 2019-12-04 | 2020-05-01 | 河北威远生物化工有限公司 | Insecticidal composition containing emamectin benzoate B2a and application thereof |
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