CN111183999A - Composition containing trifluoro-benzene pyrimidine and azoxystrobin, seed treating agent and application - Google Patents
Composition containing trifluoro-benzene pyrimidine and azoxystrobin, seed treating agent and application Download PDFInfo
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- CN111183999A CN111183999A CN202010152168.XA CN202010152168A CN111183999A CN 111183999 A CN111183999 A CN 111183999A CN 202010152168 A CN202010152168 A CN 202010152168A CN 111183999 A CN111183999 A CN 111183999A
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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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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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
Abstract
The invention discloses a composition containing trifluoropyrimidine and azoxystrobin, a seed treatment agent and application. The composition comprises a first active ingredient trifluoro-fluoropyrimidine and a second active ingredient azoxystrobin in a mass ratio of 1: 5-5: 1. The seed treatment agent prepared by the composition can prevent and treat rice planthopper at seedling stage, rice blast at seedling stage, rice thrips after field transplantation, rice planthopper and the like, the lasting period is more than 90 days, and compared with a single agent, the seed treatment agent can prevent and treat various plant diseases and insect pests through one-time seed treatment, has the characteristics of quick acting, multiple effects and long lasting effect, and can also reduce the production cost.
Description
Technical Field
The invention relates to a pesticide composition, and particularly relates to a composition containing trifluoropyrimidine and azoxystrobin, a seed treatment agent and application.
Background
In modern agricultural production, the seed is treated with seed coating agent, and this is one of the economic and simple methods for preventing and controlling soil-borne and seed-borne diseases of underground pests and crops. Seed coating is a formulation of agricultural chemicals with film-forming properties for the treatment of crop or other plant seeds, which cures on the surface of the seed to form a film called a seed coating. The seed coating agent absorbs water and swells in soil without being dissolved, allows water and air required by normal germination of seeds to pass through, slowly releases substances such as pesticides and seed fertilizers, can kill underground pests and pests in seedling stage, and has the effects of preventing and treating diseases and systemic diseases in seedling stage, improving the germination rate of seeds, promoting healthy growth of seedlings and the like. Compared with conventional spraying, powder spraying and soil treatment, the seed treatment technology is the most economical and effective method in plant pest control.
The trifluoro-benzene pyrimidine is a novel mesoion or zwitterion pesticide and is also a novel pyrimidinone compound, has the characteristics of high efficiency, quick effect, lasting effect, low dosage, environmental friendliness and the like, and is mainly used for preventing and treating rice planthoppers, leafhoppers and the like. It has different action mechanism from neonicotinoid insecticide, and features no adverse effect on pollinating insect and no virulent defect of nicotine insecticide such as imidacloprid. The trifluoropyrimidine has broad spectrum, high efficiency and lasting effect, has good control effect on various pests of Lepidoptera, Hemiptera and the like, and can be used for crops such as cotton, rice, corn, soybean and the like. The rice planthoppers, namely Nilaparvata lugens, Laodelphax striatellus and Sogatella furcifera, belong to the Hemiptera (Hemiptera) and the plant hopper family (Delphacidae) and are important pests on Asian rice at present. The damage of the pesticide not only can be achieved by the cluster of adult and nymph to absorb the rice phloem sieve tube juice to influence the growth and development of rice, but also is a vector insect for transmitting various virus diseases. Trifluoropyrimidine belongs to an ultra-efficient pesticide, can be used for preventing and controlling rice planthoppers of rice by spraying, and the dosage of active ingredients is only 15-22.5 g/hectare (namely 1-1.5 g/mu). The pesticide has low toxicity, is suitable for acute oral administration and transdermal administration of mammals, is safe to environment and organism, and has no adverse effect on pollinated insects.
The azoxystrobin is brown solid as a raw pesticide, the pure product is white crystalline solid, the strobilurin fungicide with the largest global sales amount belongs to methoxyacrylate compounds, is a mitochondrial respiration inhibitor, namely inhibits the respiration of mitochondria through electron transfer between cytochrome B and cytochrome C, is effective on strains which generate resistance to 14-demethylase inhibitors, benzamides, dicarboxamides and benzimidazoles, and has protection, treatment, eradication, permeation and systemic activity. Azoxystrobin is a novel efficient, broad-spectrum and systemic fungicide, can be used for stem and leaf spraying and seed treatment, can also be used for soil treatment, has good activity on almost all fungal (ascomycetes, basidiomycetes, oomycetes and fungi imperfecti) diseases, such as powdery mildew, rust disease, glume crime, net blotch, downy mildew, rice blast and the like, and has no cross resistance with the existing fungicides at present. It is used for grains, rice, grapes, potatoes, vegetables, fruit trees and other crops, and is safe for the crops.
In the current agricultural production process, 20-40 days are needed for rice seedling raising, and rice seedlings are extremely easily invaded by various plant diseases and insect pests such as rice planthoppers, seedling plagues, leaf plagues and the like due to factors such as high humidity, high density, rich nutrient substances, poor self stress resistance and the like in a nursery. At present, rice planthoppers and seedling plagues in China are mainly prevented and controlled in a stem and leaf spraying mode, time and labor are consumed, and environmental pollution is easily caused. Meanwhile, the sogatella furcifera and brown planthopper belong to migratory pests, and the pesticide has strong liquidity and difficult control. The occurrence of rice blast is easily affected by temperature and humidity, and the emphasis is on prevention.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects of the prior art, the invention provides a high-efficiency pesticide combination formula containing triflumizole and azoxystrobin. The invention also utilizes the respective advantages of the trifluoro-phenylpyrimidine and the azoxystrobin to form a seed treatment agent with obvious lasting effect on the rice planthoppers and the rice blast, realizes long-acting prevention and control on the rice planthoppers and the rice blast, and simultaneously can reduce the source base of pests and alleviate the later-stage prevention and control pressure. The invention also provides application of the medicament.
The technical scheme is as follows: the composition containing the trifluoropyrimidine and the azoxystrobin comprises a first active ingredient, namely the trifluoropyrimidine, and a second active ingredient, namely the azoxystrobin, wherein the mass ratio of the trifluoropyrimidine to the azoxystrobin is 1: 5-5: 1.
Preferably, the mass ratio of the first active ingredient trifluoro-phenylpyrimidine to the second active ingredient azoxystrobin in the composition is 1: 1-1: 3.
Preferably, the composition is prepared into a seed treatment agent, and the total mass of a first active ingredient, namely trifluoro-phenylpyrimidine and a second active ingredient, namely azoxystrobin, in the seed treatment agent accounts for 30-60% of the mass of the seed treatment agent.
The active ingredients of the rice seed treating agent comprise a first active ingredient triflumizole and a second active ingredient azoxystrobin in a mass ratio of 1: 5-5: 1.
Preferably, the total mass of the first active ingredient trifluoro-phenylpyrimidine and the second active ingredient azoxystrobin in the seed treatment agent accounts for 30-60% of the mass of the seed treatment agent.
The composition and the seed treatment agent are applied to the rice plant hoppers, the rice blast, the rice thrips and the rice plant hoppers.
The method of the application comprises the following steps: the mass ratio of the effective components of the water seed treating agent to the seeds is more than 1.5 g/kg.
In the present invention, "%" is a mass percentage unless otherwise specified.
Has the advantages that: (1) compared with a single agent, the combination of the trifloxystrobin and the trifloxystrobin can reduce the using amount of the trifloxystrobin and the production cost; (2) according to the invention, active components are prepared into a seed treatment agent, and by means of a seed treatment method, the systemic effect in the rice seed germination process is utilized, so that the agent enters rice plants in a biological extraction mode and is carried with the agent for a long time, and the purposes of controlling plant hoppers and rice blast are achieved; (3) the invention effectively controls the rice blast in seedling stage and reduces the pathogenic base number of the transplanted field; (4) the seed treatment agent can prevent and control Laodelphax striatellus in the seedling stage, and can be used for long-acting prevention and control of the Laodelphax striatellus in the field after seedlings are transplanted.
Detailed Description
Preparation of seed treatment agent
1.1 the specific formulation of the seed treatment agent in this example is a seed treatment suspending agent, which is prepared by the following method: processing the solid raw material consisting of the trifluorobenzene pyrimidine and the azoxystrobin to be more than 800-1000 meshes by using a jet milling method, accurately weighing 92% of the trifluorobenzene pyrimidinamine raw material and 95% of the azoxystrobin raw material according to the test requirements according to the mass percentage, adding a dispersing agent consisting of alkyl naphthalene formaldehyde condensate sulfonate, wetting agent alkyl naphthalene sulfonate and adhesive alkyl aryl polyoxyethylene ether, adding deionized water to 100%, carrying out primary mixing, shearing, stirring and dispersing, preparing into slurry, adding red warning color, grinding for 1-2 hours by using a horizontal sand mill, and enabling the particle size to be below 5 microns.
1.2 sample preparation
Example 1: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 1:1, the cumulant (sum of the mass) of the first active ingredient and the second active ingredient is 30 percent of the mass of the composition, the other auxiliary ingredients and the mass percent are respectively 6 percent of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 5 percent of wetting agent alkyl naphthalene sulfonate and 5 percent of adhesive alkyl aryl polyoxyethylene ether, deionized water is added to 100 percent for primary mixing, shearing, stirring and dispersing, and 2 percent of red warning color is added after the slurry is prepared.
Example 2: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 1: and 2, the cumulative amount (sum by mass) of the first active ingredient and the second active ingredient is 30% of the composition, the other auxiliary ingredients and the mass percentages are respectively 6% of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 5% of wetting agent alkyl naphthalene sulfonate and 5% of adhesive alkyl aryl polyoxyethylene ether, and deionized water is added to 100% for primary mixing, shearing, stirring and dispersing, and 2% of red warning color is added after the slurry is prepared.
Example 3: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 1: and 3, the cumulative amount (sum by mass) of the first active ingredient and the second active ingredient is 40% of the composition, the other auxiliary ingredients and the mass percentages are respectively 8% of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 6% of wetting agent alkyl naphthalene sulfonate and 6% of adhesive alkyl aryl polyoxyethylene ether, and deionized water is added to 100% for primary mixing, shearing, stirring and dispersing, and 2% of red warning color is added after the slurry is prepared.
Example 4: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 1: and 4, the cumulative amount (sum of the mass) of the first active ingredient and the second active ingredient is 50% of the mass of the composition, the mass percentages of the other auxiliary ingredients are respectively 10% of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 8% of wetting agent alkyl naphthalene sulfonate and 8% of adhesive alkyl aryl polyoxyethylene ether, and deionized water is added to 100% for primary mixing, shearing, stirring and dispersing, so that a slurry is prepared, and then 2% of red warning color is added.
Example 5: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 1:5, the cumulative amount (sum by mass) of the first active ingredient and the second active ingredient is 30% of the composition, the other auxiliary ingredients and the mass percentages are respectively 6% of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 5% of wetting agent alkyl naphthalene sulfonate, 5% of adhesive alkyl aryl polyoxyethylene ether, and deionized water is added to 100% for primary mixing, shearing, stirring and dispersing, and 2% of red warning color is added after the slurry is prepared.
Example 6: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 5:1, the cumulant (sum of the mass) of the first active ingredient and the second active ingredient is 30 percent of the mass of the composition, the other auxiliary ingredients and the mass percent are respectively 6 percent of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 5 percent of wetting agent alkyl naphthalene sulfonate and 5 percent of adhesive alkyl aryl polyoxyethylene ether, deionized water is added to 100 percent for primary mixing, shearing, stirring and dispersing, and 2 percent of red warning color is added after the slurry is prepared.
Example 7: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 4: 1, the cumulant (sum of the mass) of the first active ingredient and the second active ingredient is 50 percent of the mass of the composition, the other auxiliary ingredients and the mass percent are respectively 10 percent of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 8 percent of wetting agent alkyl naphthalene sulfonate and 8 percent of adhesive alkyl aryl polyoxyethylene ether, deionized water is added to 100 percent for primary mixing, shearing, stirring and dispersing, and 2 percent of red warning color is added after the slurry is prepared.
Example 8: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 3: 1, the cumulant (sum of the mass) of the first active ingredient and the second active ingredient is 40 percent of the mass of the composition, the other auxiliary ingredients and the proportion are respectively 8 percent of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 6 percent of wetting agent alkyl naphthalene sulfonate and 6 percent of adhesive alkyl aryl polyoxyethylene ether, deionized water is added to 100 percent for primary mixing, shearing, stirring and dispersing, and 2 percent of red warning color is added after the slurry is prepared.
Example 9: a seed treatment agent containing triflumopyrimidine and azoxystrobin comprises a first active ingredient, namely triflumopyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the first active ingredient to the second active ingredient is 2: 1, the cumulant (sum of the mass) of the first active ingredient and the second active ingredient is 30 percent of the mass of the composition, the other auxiliary ingredients and the mass percent are respectively 6 percent of dispersant alkyl naphthalene formaldehyde condensate sulfonate, 5 percent of wetting agent alkyl naphthalene sulfonate and 5 percent of adhesive alkyl aryl polyoxyethylene ether, deionized water is added to 100 percent for primary mixing, shearing, stirring and dispersing, and 2 percent of red warning color is added after the slurry is prepared.
Control 1: 10% trifluorobenzene pyrimidine suspension.
Control 2: 25% azoxystrobin suspending agent.
1.3 test agent types and amounts
The combination of agents used in the test is shown in table 1. The preparation method of the seed treatment flotation agent is used for preparing and reserving.
Table 1 shows the proportion, content and dosage of each medicament
Second, indoor rice germination and emergence safety determination
2.1 method for determining influence of indoor seed treatment suspending agent on rice germination and emergence
Rice variety: nanjing 9108. The germination rates of rice seeds treated with the compositions in the amounts shown in table 1 were measured by wet paper bed culture, specifically by placing water-absorbent paper in a glass petri dish, thoroughly wetting with water, pouring out excess water, placing about 100 rice seeds in each dish, repeating each treatment 3 times, placing in an incubator at 35 ℃ for 24 hours, and adjusting to 25 ℃. And respectively recording the germination number and the non-germination number of the seeds on the 3 rd day and the 7 th day, and calculating the 3-day germination vigor and the 7-day germination rate of each treated seed. And simultaneously measuring the emergence rate of each treatment, wherein the specific method comprises the steps of selecting 100 rice seeds, uniformly dibbling the rice seeds in a plastic seedling tray, covering a layer of thin soil, keeping a wet state, placing the rice seeds in an indoor dark state for 5 days, moving the rice seeds to the outdoor for seedling culture, replenishing water in time during germination and emergence, and investigating the emergence condition of each treatment on the 15 th day after sowing.
2.2 test results
The test results are shown in Table 2. As can be seen from Table 2, when the effective components are mixed in a ratio of 1:5 to 5:1, the triflumidine and azoxystrobin have certain influence on the germination vigor of 3 days under the condition of the test dosage, which is mainly shown in that the higher the effective dosage of the triflumidine is, the lower the germination vigor is, but after the seeds are treated for 7 days, the germination rate of each treatment is not different from that of a control, and the germination rate of 15 days is also not different from that of the control. The rice seed treatment suspending agent has no influence on the final germination rate and emergence rate of rice.
TABLE 2 influence of trifluoropyrimidine azoxystrobin seed treatment suspending agent on rice germination and emergence
Third, field efficacy test of suspending agent for seed treatment
In order to verify the control effect of the trifluorobenzene pyrimidine azoxystrobin seed treatment suspending agent on plant diseases and insect pests in various proportions, the control effect of the combination and the dosage of the suspending agent on rice planthoppers and rice blast in seedling stage and rice planthoppers and rice thrips after field transplantation in a dry breeding machine seedling transplanting mode is developed. The amount of rice to be used is 4 kg/mu, and the rice is sowed on 28 seedling trays, wherein the length of the bottom of each seedling tray is 575 millimeters and 275 millimeters, and the vertical height of each seedling tray is 25 millimeters. Weighing rice seeds, placing the rice seeds in a net bag, soaking the seeds in clear water for 48 hours, then draining the seeds for 24 hours, and weighing the medicaments and the dosages in the table 1 according to the test requirements for seed dressing. The specific method comprises adding seeds and seed dressing agent into disposable thickened plastic bag (40cm × 60cm), rapidly turning and mixing, making seeds contact with the medicinal liquid, and spreading the seeds uniformly red on paper for drying in the shade.
3.1 Trifluoropyrimidine azoxystrobin seed treatment suspending agent for preventing and controlling rice planthopper in seedling stage
The planthopper is mainly Laodelphax striatellus in seedling stage, and the planthopper on the seedling is lightly beaten by disk beating method with disk beating area of 0.20m until seeding for 20 days2And (4) performing 10-point survey for each treatment, counting the number of the laodelphax striatellus, and calculating the control effect.
And (3) test results:
the results of the tests after treatment at the amounts indicated in Table 1 are given in Table 3. As can be seen from Table 3, each treatment of the triflumimidine-azoxystrobin seed treatment suspending agent has certain control effect on Laodelphax striatellus in seedling stage, the insect population is reduced along with the increase of the dosage of triflumimidine, and the control effect is increased along with the increase of the dosage of triflumimidine. When the suspension agent for treating the seed of the rice is used for treating the rice seed, when the effective dosage of the triflumizole reaches more than 0.3g/kg of the seed, the control effect on the laodelphax striatellus is more than 85%, namely, the control effect of the flaccid nilaparvata lugens is higher than that of the flaccid nilaparvata lugens in the above examples 1, 2, 3, 4, 6, 7, 8 and 9 by the combination of the triflumizole and the azoxystrobin.
TABLE 3 Trifluoropyrimidine azoxystrobin seed treatment suspending agent control Effect on Laodelphax striatellus at seedling stage
3.2 test for preventing and controlling rice blast in seedling stage by using trifluorobenzene pyrimidine azoxystrobin seed treatment suspending agent in each proportion
The seedling raising method is the same as the above. And investigating rice blast occurrence disease blocks in the seedling stage from the 3-4 leaf stage of the rice seedlings to the 3 d-5 d before transplanting the rice seedlings into the field. 10 spots per treatment, 0.20m per spot2. And recording the total plant number and the number of diseased plants of each investigated seedling, calculating the disease incidence, and comparing with the control to calculate the control effect.
And (3) test results:
the results of the tests after treatment at the amounts indicated in Table 1 are given in Table 4. As can be seen from Table 4, each treatment of the triflumidine-azoxystrobin seed treatment suspending agent has a certain control effect on rice blast in seedling stage, the number of rice blast disease-causing strains in seedling stage is reduced with the increase of the use amount of azoxystrobin, and the control effect on seedling plague is increased with the increase of the use amount of azoxystrobin. When the suspension is used for treating rice seeds, the effective using amount of the azoxystrobin reaches more than 1.0g/kg of seeds, the control effect on the seedling blight is more than 80%, namely, the trifloxystrobin and the azoxystrobin in the above examples 2, 3, 4 and 5 have higher control effect on the seedling plague than the mixture of the trifloxystrobin and the azoxystrobin.
TABLE 4 preventing and treating effect of trifluoropyrimidine azoxystrobin seed treatment suspending agent on rice blast in seedling stage
3.3 experiments on prevention and treatment of thrips rice with Trifluoropyrimidine azoxystrobin seed treatment suspending agent in each ratio
The seedling raising method is the same as the above. The prevention and treatment effects of rice thrips are investigated 30 days after the rice seedlings are transplanted into the field, and the specific method comprises the following steps: 10 points are investigated for each treatment, a parallel jumping method is adopted for investigation, 5 holes of rice are investigated for each point, and the number of thrips oryzae individuals on each treatment is recorded.
And (3) test results:
the results of the tests after treatment at the amounts indicated in Table 1 are given in Table 5. As can be seen from Table 5, each treatment of the triflumimidine azoxystrobin seed treatment suspending agent has certain control effect on thrips oryzae, the number of thrips oryzae population is reduced along with the increase of the dosage of triflumimidine, and the control effect on thrips oryzae is increased along with the increase of the dosage of triflumimidine. When the suspension is used for treating rice seeds, the control effect on rice thrips is over 90 percent when the effective dosage of the trifluorobenzene pyrimidine is over 0.375g/kg of seeds, namely, the control effect of the trifluorobenzene pyrimidine and the azoxystrobin in the above examples 1, 2, 3, 6, 7, 8 and 9 is higher than that of the rice thrips.
TABLE 5 control Effect of Trifluoropyrimidine azoxystrobin seed treatment suspending agent on thrips oryzae
3.4 experiments of controlling rice planthopper in paddy field by using trifluorobenzene pyrimidine azoxystrobin seed treatment suspending agent in each proportion
The seedling raising method is the same as the above. The treatments in the field are randomly arranged, each treatment is repeated for 4 times, and each repeated area is 60m2The above. Transplanting the rice planthoppers into the field after 30 days of sowing and transplanting, and investigating the population of the rice planthoppers in each field at 70d and 90d after sowing. Sampling by adopting a parallel jumping method, repeatedly surveying 10 points each, surveying 2 groups of rice each point, carrying out a disk shooting method, counting the number of the planthoppers, and calculating the control effect.
And (3) test results:
the results of the tests after treatment at the amounts indicated in Table 1 are shown in Table 6. As can be seen from Table 6, the suspension for seed treatment of triflumidine-azoxystrobin has a long-acting control effect on rice planthoppers on rice after field transplantation, the number of rice planthoppers after sowing 70d is reduced along with the increase of the dosage of triflumidine, the control effect on the rice planthoppers is increased along with the increase of the dosage of the triflumidine, and the control effect similar to that of 70d also appears at 90d after sowing. The rice planthoppers in the field in the middle period before the growth of rice (within 90 days after sowing) are mainly the gray planthoppers and the sogatella furcifera, and the quantity of the insect pests in the hundred holes is more than 500, so that the results show that the number of the rice planthoppers is controlled in the control index by combining various agents 70 days after the seed treatment of the suspension agent by utilizing the triflumimidine-azoxystrobin seed treatment, and the rice planthoppers in the field are controlled in the control index in 90 days after sowing in the examples 1, 2, 6, 7, 8 and 9.
TABLE 6 control Effect of Trifluoropyrimidine azoxystrobin seed treatment suspending agent on Rice planthopper in big field
From the tests, the seed treatment suspending agent is prepared by compounding the trifluoropyrimidine and the azoxystrobin according to different concentration ratios, and can solve various plant diseases and insect pests in rice production. Although no synergistic effect is found temporarily in the combination of the two, the disease and insect pests which occur simultaneously in the same period can be solved in the practical production, including the rice planthopper at the seedling stage, the rice blast at the seedling stage, the field thrips and the rice planthopper at the early and middle stages of the growth of the rice, the disease and insect pest control of the rice from sowing to 90 days after sowing can be reduced, meanwhile, the trifluoropyrimidine serving as a new drug is higher in price, the dosage of the trifluoropyrimidine can be reduced by combining the trifloxystrobin and the azoxystrobin, and the. From the above tests, it can be seen that the above pests and diseases need to be treated simultaneously, and the ratio of triflumizole to azoxystrobin can be in the range of 1: 1-3, the effective component is 30-60%, and the sum of the effective content of the two components per kilogram of seeds is more than 1.5 g/kg.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and such improvements and modifications should be considered as the protection scope of the present invention.
Claims (7)
1. The composition containing trifluoropyrimidine and azoxystrobin is characterized by comprising a first active ingredient, namely trifluoropyrimidine, and a second active ingredient, namely azoxystrobin, wherein the mass ratio of the trifluoropyrimidine to the azoxystrobin is 1: 5-5: 1.
2. The composition containing the trifluorobenzene pyrimidine and the azoxystrobin according to claim 1, wherein the mass ratio of the first active ingredient trifluorobenzene pyrimidine to the second active ingredient azoxystrobin in the composition is 1: 1-1: 3.
3. The composition containing the trifluorobenzene pyrimidine and the azoxystrobin according to claim 1, which is prepared into a seed treatment agent, wherein the total mass of the first active ingredient trifluorobenzene pyrimidine and the second active ingredient azoxystrobin in the seed treatment agent accounts for 30-60% of the mass of the seed treatment agent.
4. The seed treatment agent is characterized in that the active ingredients of the seed treatment agent comprise a first active ingredient triflumizole and a second active ingredient azoxystrobin in a mass ratio of 1: 5-5: 1.
5. The seed treatment agent according to claim 4, wherein the total mass of the first active ingredient trifluorobenzene pyrimidine and the second active ingredient azoxystrobin in the seed treatment agent accounts for 30-60% of the mass of the seed treatment agent.
6. Use of the composition according to any one of claims 1 to 3 or the seed treatment agent according to any one of claims 4 to 5 for rice plant hopper, rice blast, thrips oryzae and rice plant hopper.
7. The application method of claim 6, wherein the mass ratio of the effective components of the seed treatment agent to the seeds is more than 1.5 g/kg.
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Citations (5)
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|---|---|---|---|---|
| CN102665415A (en) * | 2009-08-05 | 2012-09-12 | 杜邦公司 | Mixtures of mesoionic pesticides |
| CN103459387A (en) * | 2010-12-29 | 2013-12-18 | 杜邦公司 | Mesoionic pyrido [1,2 -A] pyrimidine pesticides |
| CN107183040A (en) * | 2017-06-30 | 2017-09-22 | 江苏省绿盾植保农药实验有限公司 | A kind of suspension seed-coating agent containing trifluoro-benzene pyrimidine and thifluzamide and its preparation method and application |
| CN109715628A (en) * | 2016-09-28 | 2019-05-03 | 日本化药株式会社 | Novel mesoionic Pesticidal compound |
| CN110461854A (en) * | 2017-03-31 | 2019-11-15 | 巴斯夫欧洲公司 | The method for preparing chirality 2,3- thiazoline simultaneously [3,2-A] pyrimidine -4- compound |
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2020
- 2020-03-06 CN CN202010152168.XA patent/CN111183999A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665415A (en) * | 2009-08-05 | 2012-09-12 | 杜邦公司 | Mixtures of mesoionic pesticides |
| CN103459387A (en) * | 2010-12-29 | 2013-12-18 | 杜邦公司 | Mesoionic pyrido [1,2 -A] pyrimidine pesticides |
| CN109715628A (en) * | 2016-09-28 | 2019-05-03 | 日本化药株式会社 | Novel mesoionic Pesticidal compound |
| CN110461854A (en) * | 2017-03-31 | 2019-11-15 | 巴斯夫欧洲公司 | The method for preparing chirality 2,3- thiazoline simultaneously [3,2-A] pyrimidine -4- compound |
| CN107183040A (en) * | 2017-06-30 | 2017-09-22 | 江苏省绿盾植保农药实验有限公司 | A kind of suspension seed-coating agent containing trifluoro-benzene pyrimidine and thifluzamide and its preparation method and application |
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Application publication date: 20200522 |