CN109907053B - Pesticide composition and application thereof - Google Patents
Pesticide composition and application thereof Download PDFInfo
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Abstract
The invention provides a pesticide composition and application thereof, the pesticide composition is prepared by mixing bixafen and brassinolide, and the pesticide composition has the effects of promoting plant growth and preventing and treating diseases and has better effects on promoting plant growth and preventing and treating diseases than the effect of singly using the bixafen or the brassinolide.
Description
Technical Field
The invention relates to the field of pesticides, and particularly relates to a pesticide composition and application thereof.
Background
Bixafen (bixafen) is a pyrazole amide bactericide developed by Bayer crop science corporation, is a systemic bactericide, has a wide bactericidal spectrum, and is specially used for foliar spray. By interfering succinate dehydrogenase on a complex II in a respiratory electron transfer chain of the mitochondria of pathogenic bacteria, the functions of the mitochondria are inhibited, the energy generation of the mitochondria is prevented, the growth of the pathogenic bacteria is inhibited, and the mitochondria are finally killed. Can effectively prevent and treat important diseases on cereal crops caused by ascomycetes, basidiomycetes and imperfect fungi. Bixafen has excellent control effect on various diseases of wheat crops.
The brassinolide is a novel low-toxicity plant growth regulator, can promote the growth of crops such as vegetables, melons, fruits and the like through soaking seeds and spraying stems and leaves of the brassinolide with proper concentration, can improve the quality and the yield, can also improve the drought resistance and the cold resistance of the crops, and can relieve the symptoms of plant diseases and insect pests, phytotoxicity, fertilizer injury and freezing injury of the crops. In the middle and later growth stages of wheat, the air temperature rises quickly and grows vigorously, the brassinolide can obviously increase the growth of the nutrient body of the wheat and promote fertilization, has obvious promotion effect on root systems (including root length and root number) and plant height, can increase the tillering number and chlorophyll content of the wheat, can obviously increase the stress resistance of the wheat, improves the low temperature resistance and dry and hot wind resistance of seedlings in winter, promotes the filling of the wheat, and improves the quality and yield of the wheat.
In actual production, modern high-efficiency agriculture is focused on popularizing and simplifying agricultural technology, two or more of pesticides, bactericides, herbicides and growth regulators are used together with pesticides by combining the growth characteristics of crops, pest and disease occurrence rules and pesticide miscibility, so that the insecticidal, bactericidal and herbicidal spectrum is expanded, the resistance of pests is delayed, the growth of plants is promoted, the environmental pollution is reduced, and the pesticide residue is reduced.
Disclosure of Invention
The invention aims to provide a pesticide composition which is formed by combining a bactericide and a growth regulator, and can effectively prevent and control plant diseases and insect pests and promote the growth of crops compared with the bactericide and the growth regulator which are independent.
The invention provides a pesticide composition, which comprises pyrazole amide bactericides and a plant growth regulator, wherein the pyrazole amide bactericides comprise bixafen, and the plant growth regulator comprises at least one of brassinolide and derivatives thereof.
Further, the weight ratio of the bixafen to the brassinolide is 1000:1-30000: 1.
Further, the weight ratio of bixafen to brassinolide is 10000: 1.
Furthermore, the pesticide composition is in the form of a suspending agent, missible oil or water dispersible granules.
Further, when the dosage form of the pesticide composition is water dispersible granules, the pesticide composition comprises the following components in percentage by mass: 10-75% of bixafen and brassinolide, 3-6% of wetting agent, 3-5% of dispersing agent, 2-6% of disintegrating agent, 0.5-3% of binder and the balance of filler to 100%.
Further, when the pesticide composition is in the form of emulsifiable concentrate, the pesticide composition comprises the following components in percentage by mass: 10-50% of bixafen and brassinolide, 5-15% of emulsifier and the balance of solvent to 100%.
Further, when the pesticide composition is a suspending agent, the pesticide composition comprises the following components in percentage by mass: 20-40% of bixafen and brassinolide, 3-5% of emulsifier, 1-2% of wetting agent, 0.5-2% of thickening agent, 6-10% of antifreezing agent, 3-5% of dispersing agent and water for supplementing to 100%.
Further, the wetting agent comprises any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the dispersing agent comprises any one or more of methylene dinaphthalene sodium sulfonate, lignin calcium carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene; the disintegrating agent comprises any one or more of sodium chloride, urea, ammonium sulfate and sodium carbonate; the binder comprises any one or more of polyvinyl alcohol, polyethylene glycol and soluble starch.
Further, the emulsifier comprises any one or more of phenethyl phenol polyoxyethylene ether, fatty alcohol block polyether and NP-7; the wetting agent comprises any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the thickening agent comprises any one or more of gelatin, xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, polyvinylpyrrolidone and polyvinyl acetate; the antifreezing agent comprises any one or more of ethylene glycol, propylene glycol and glycerol; the dispersing agent comprises any one or more of methylene dinaphthalene sodium sulfonate, lignin calcium carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene.
The invention also provides application of the pesticide composition in promoting crop growth and preventing and treating crop diseases and insect pests.
The invention has the beneficial effects that:
according to the technical scheme, the pyraclostrobin bactericide bixafen and the plant growth regulator brassinolide are compounded into the pesticide composition for use, so that the plant growth can be promoted, and the sterilization effect can be improved. And compared with the single use of bixafen, the pesticide composition has better sterilization effect and obviously improves the promotion effect on plant growth compared with the single use of brassinolide.
Preferably, the bixafen and the brassinolide are mixed for use and the proper mixing proportion is adjusted, so that the compound pesticide has an obvious synergistic effect on crop diseases, can reduce the dosage, and simultaneously has the effects of improving the stress resistance of crops, promoting the growth and development of the crops and improving the yield and the quality.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a pesticide composition, which comprises pyrazole amide bactericides and a plant growth regulator, wherein the pyrazole amide bactericides comprise bixafen, and the plant growth regulator comprises at least one of brassinolide and derivatives thereof.
Specifically, the pyrazole amide bactericide is a member of succinate dehydrogenase inhibitors (SDHI) bactericides, and the SDHI bactericides play a role by inhibiting succinate dehydrogenase in tricarboxylic acid circulation in the respiratory action process of pathogenic bacteria mitochondria. Succinate Dehydrogenase (SDH) is a flavoenzyme belonging to cytochrome oxidase, which is the only multi-subunit enzyme integrated on a membrane in the tricarboxylic acid cycle, is bound to the inner membrane of mitochondria in eukaryotes, and is integrated on the membrane in prokaryotes, which is one of the junctions connecting oxidative phosphorylation and electron transfer, and can provide electrons for the aerobic and productive respiratory chains of mitochondria of eukaryotes and various prokaryotes, and is a marker enzyme of mitochondria. The SDHI bactericide developed in recent years has the characteristics of novel structure, high activity and wide bactericidal spectrum, and has the effect of improving the quality and yield of crops, thereby bringing about good market performance.
Specifically, the pyrazolecarboxamide fungicide may be furametpyr, penthiopyrad (penthiopyrad), isopyrazam (isopyrazam), fluxapyroxad (fluxapyroxad), bixafen (bixafen), sedaxane (sedaxane), fluxafen (penflufen), benzovindiflupyr (benzovindifiupy), and the like.
Penthiopyrad is a pyrazole amide fungicide developed by Mitsui chemical company of Japan, and can be used for preventing and treating gray mold, powdery mildew, rust disease, downy mildew, sclerotinia and the like of crops such as fruit trees, vegetables and lawns.
The chemical name of the isopyrazam is 3-difluoromethyl-1-methyl-N- [ (1Rs, 4sR, 9Rs) -1, 2, 3, 4-tetrahydro-9-isopropyl-1, 4-methylenaphthalen-5-yl ] pyrazole-4-amide, and the isopyrazam is divided into cis-structure and trans-structure. Can effectively prevent and control diseases of wheat, rice, peanut, grape, vegetable, potato, banana, lemon, coffee, fruit tree, walnut, tea tree, tobacco and ornamental plant, lawn and other field crops. The substance is not only low in toxicity and safe to non-target organisms, but also safe and friendly to users and the environment.
The fluxapyroxad has the advantages of high activity, wide application spectrum, long lasting period, good selectivity, excellent systemic conductivity, protection and treatment effects and the like. Can be used for preventing and controlling diseases such as spot blight (husk needle bag), gray mold (botrytis cinerea), powdery mildew (powdery mildew), leaf spot disease or apple tree alternaria leaf spot (rhizoctonia solani, alternaria alternata and the like), damping-off disease or stem-base rot disease (rhizoctonia solani), anthracnose (colletotrichum gloeosporioides) and the like of grains, soybeans, corns, rapes, fruit trees, vegetables, beet, peanuts, cotton, lawns and the like.
Bixafen has the chemical name of N- (3',4' -dichloro-5-fluoro [1,1' -biphenyl ] -2-yl) -3-difluoromethyl-1-methyl-1H-pyrazole-4-formamide, is a pyrazole amide bactericide developed by Bayer crop science, is a systemic bactericide, has a wide bactericidal spectrum, is special for foliar spray, and can be used for preventing and treating various diseases such as powdery mildew, rust disease, downy mildew and the like.
The sedaxane is a pyrazole amide fungicide developed by Zhang Fangda company, and can be used for preventing and treating fungal diseases such as head smut, loose smut, black nevus and the like of crops such as corns, wheat, rice, soybeans, cotton, potatoes and the like. At present, 44% of sedaxane suspension seed coating agent, 8% of sedaxane fludioxonil suspension seed coating agent (3.7g/L +4.3g/L) and 9% of sedaxane fludioxonil difenoconazole suspension seed coating agent (4.6% + 2.2% + 2.2%) are registered in China and used for seed treatment of corn, potato and wheat.
The fluxapyroxad aniline has the chemical name of N- [2- (1, 3-dimethylbutyl) phenyl ] -5-fluoro-1, 3-dimethyl-1H-pyrazole-4-formamide, is developed by Bayer crop science, is mainly used for seed treatment, can be used for seeds of potatoes, corns, rice, cotton, wheat, barley, alfalfa, vegetables, beans, rape and the like, and can be used for preventing and treating seed-borne and soil-borne diseases caused by fungi of Basidiomycota and ascomycota, such as potato black nevus, rice sheath blight, sclerotinia rot of colza, wheat loose smut, wheat stinking smut, corn small spot and the like.
The benzovindiflupyr is a pyrazole amide bactericide developed by Zhangda, and has no cross resistance with the existing bactericide. The benzovindiflupyr can be used for treating main diseases of various crops such as wheat, corn, soybean, fruit trees, potato, peanut and the like, and has excellent control effects on wheat take-all, leaf blight, basal rot, powdery mildew, peanut black spot, corn small spot and gray mold, Asian soybean rust disease and the like.
Specifically, the plant growth regulator is a synthetic chemical substance having a regulating effect on the growth and development of plants and a natural plant hormone extracted from organisms. The plant hormone refers to trace organic substances which naturally exist in plants and have remarkable effects on the growth and development of plants, and is also called plant natural hormone or plant endogenous hormone. Its existence can influence and effectively regulate and control the growth and development of plants, including a series of plant life processes from cell growth, division, rooting, germination, flowering, fructification, maturation and abscission. The plant growth regulator is used in agricultural production by means of artificial synthesis of matter with physiological and biological effect similar to that of plant hormone after understanding the structure and action mechanism of natural plant hormone, and can regulate the growth process of crop effectively to reach the aims of stabilizing yield, raising yield, improving quality, raising crop resistance, etc.
At present, the plant growth regulator in the pesticide market mainly comprises two main types of artificially synthesized compound sodium nitrophenolate and brassin. In practical application, the naturally extracted brassin has the best quality, the comprehensive economic benefit is better, and the brassin can be welcomed and applied by farmers.
Brassinolide is the first sterol compound with plant growth regulator effect, can show various activities at low concentration, is a new plant endogenous hormone, and has effects of enhancing plant vegetative growth, promoting cell division and reproductive growth, increasing plant vegetative growth and promoting fertilization.
The brassinolide can comprehensively regulate various functions of plants under extremely low concentration, and the high efficiency and the safety of the brassinolide are mainly reflected in the following aspects:
1. the usage amount is very low, and only 0.001-0.1 ml of brassinolide is needed in one thousand liters of aqueous solution to play the role.
2. The activity is high.
3. Is not easy to cause phytotoxicity.
4. Broad spectrum, high efficiency, capability of relieving phytotoxicity and excellent stress resistance.
5. Environmental protection and no residue.
Specifically, the brassinolide is one or more mixtures with similar brassinolide structures, and mainly comprises common types, such as BR1, BR2, BR3, BR4, BR5, BR6 and the like which are common brassinolide types, alone or in a mixture.
Specifically, the derivative of brassinolide can be a new substance derived from brassinolide by simple group modification in the structural formula, such as propionyl brassinolide, 24-epibrassinolide, 22,23, 24-epibrassinolide, 28-homobrassinolide, 14-hydrocarbyl brassinosteroid and the like.
According to the invention, the pyraclostrobin bactericide, bixafen and the plant growth regulator brassinolide are mixed for use, so that the plant growth can be promoted, the bactericidal effect is improved, and the use effect of the pesticide composition is improved. Compared with the single use of bixafen, the pesticide composition has better sterilization effect and obviously improves the promotion effect on plant growth compared with the single use of brassinolide.
Preferably, the weight ratio of bixafen to brassinolide is 1000:1-30000: 1.
Preferably, the weight ratio of bixafen to brassinolide is 10000: 1.
According to the invention, the bixafen and the brassinolide are mixed for use and the proper mixing proportion is adjusted, so that the pesticide composition has a remarkable synergistic effect on crop diseases, can reduce the dosage, and simultaneously has the effects of improving the stress resistance of crops, promoting the growth and development of the crops and improving the yield and quality.
Furthermore, the pesticide composition can be in the form of a suspending agent, missible oil or water dispersible granules.
Further, when the dosage form of the pesticide composition is water dispersible granules, the pesticide composition comprises the following components in percentage by mass: 10-75% of bixafen and brassinolide, 3-6% of wetting agent, 3-5% of dispersing agent, 2-6% of disintegrating agent, 0.5-3% of binder and the balance of filler to 100%.
Further, the preparation method of the water dispersible granule of the pesticide composition comprises the steps of uniformly mixing the components according to the mass percentage, crushing the components into powder by using an ultramicro/jet mill, and then granulating, drying, grading, selecting and detecting to prepare the water dispersible granule.
Specifically, the wetting agent may be any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the dispersing agent can be any one or more of methylene dinaphthalene sodium sulfonate, lignin calcium carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene; the disintegrating agent can be any one or more of sodium chloride, urea, ammonium sulfate and sodium carbonate; the binder can be any one or more of polyvinyl alcohol, polyethylene glycol and soluble starch; the filler can be any one or more of white carbon black, kaolin, bentonite and diatomite.
Further, when the pesticide composition is in the form of emulsifiable concentrate, the pesticide composition comprises the following components in percentage by mass: 10-50% of bixafen and brassinolide, 5-15% of emulsifier and the balance of solvent to 100%.
Further, the preparation method of the emulsion of the pesticide composition comprises the following steps:
1. adding the emulsifier into a proper amount of the solvent, and uniformly mixing;
2. adding the bixafen and the brassinolide mixed solution into the solution obtained in the step 1, and uniformly mixing;
3. and adding the rest of the solvent into the solution obtained in the step (2), and uniformly mixing to obtain the missible oil.
Specifically, the emulsifier can be any one or more of phenethyl phenol polyoxyethylene ether, fatty alcohol block polyether, NP-7 and agricultural emulsion series; the solvent can be any one or more of mineral spirit, pyrrolidone, NN dimethylformamide or methyl oleate.
Further, when the pesticide composition is a suspending agent, the pesticide composition comprises the following components in percentage by mass: 20-40% of bixafen and brassinolide, 3-5% of emulsifier, 1-2% of wetting agent, 0.5-2% of thickening agent, 6-10% of antifreezing agent, 3-5% of dispersing agent and water for supplementing to 100%.
The preparation method of the suspending agent of the pesticide composition comprises the following steps: (1) uniformly mixing a dispersing agent, a wetting agent, an emulsifying agent, a thickening agent, an antifreezing agent and water to obtain a mixed material; (2) and adding the bixafen and the brassinolide into the mixed material, and grinding until the particle size of the material is below 10 mu m to obtain the suspending agent.
Specifically, the emulsifier can be any one or more of phenethyl phenol polyoxyethylene ether, fatty alcohol block polyether, NP-7 and agricultural emulsion series; the wetting agent can be any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the thickening agent can be any one or more of gelatin, xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, polyvinylpyrrolidone and polyvinyl acetate; the antifreezing agent can be any one or more of ethylene glycol, propylene glycol and glycerol; the dispersant can be any one or more of sodium methylene dinaphthalene sulfonate, calcium lignin carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene.
The effect of the pesticide composition of the present invention in promoting plant growth and enhancing the bactericidal effect of plants will be described below with reference to specific examples.
Example 1 synergy test
Test time: 2017
Test site: henan province Lin Ying county
Test work: wheat (variety: Zheng wheat 366)
The test method comprises the following steps:
respectively preparing mother liquor from 95% bixafen and 90% 28-epihomobrassinolide with acetone and tween-80, and preparing the compound preparation of the bixafen and the brassinolide with different mass ratios by using the bixafen mother liquor and the 28-epihomobrassinolide mother liquor. The test groups set up in the examples of the invention included: the specific test design is shown in table 1, wherein the mass ratio of bixafen to 28-epibrassinolide is 30000:1, the mass ratio of bixafen to 28-epibrassinolide is 20000:1, the mass ratio of bixafen to 28-epibrassinolide is 10000:1, the mass ratio of bixafen to 28-epibrassinolide is 5000:1, the mass ratio of bixafen to 28-epibrassinolide is 1000:1, and in addition, a control test group only applying 75g/L of bixafen and only applying 0.01% of 28-epibrassinolide is arranged, and a clear water is used as a blank control test group CK.
Selecting a wheat field with uniform growth vigor, and spraying the quantitative (the liquid spraying amount is 450L/ha) pesticide of each test group on the wheat leaves by adopting a leaf surface spraying method in the booting period of the wheat. The length and thousand grain weight of the wheat ear of each treatment group are measured in the mature period of the wheat, the yield increasing rate of the compound medicament and the single dose is calculated, whether the compound medicament has the synergistic effect or not is judged, and the test result is shown in table 1.
TABLE 1 Bixafen and brassinolide compound pairing wheat synergy test results
And (3) carrying out Tukey method significance analysis on the data in the table 1, namely comparing the result mean values of all the treatment groups pairwise, and reflecting whether the difference between pairwise differences is significant or not through comparison. The significance analysis step of the lower case letters comprises the steps of firstly arranging the average numbers of the experimental results of all treatment groups from large to small, then marking the letter a on the maximum average number, comparing the average number with the average numbers below the average number in sequence, marking the letter a when the difference is not significant, and marking the letter b when one average number is significantly different from the average number; then, the average marked b is used as a standard, and the average number ratio of the average marked b to the average marked b is greater than that of the average marked b, and the average marked b is uniformly marked with the letter b; the most significant number of the means marked b is then used as a standard, and the number of the means marked b compared to the following means marked without any sign is continued until a mean which differs significantly from it is marked with the letter c … … and so on until the smallest mean has the marked letter. Lower case letters indicate a significance level of P0.05, and the value P reflects the statistical significance of the test data and indicates the credibility and probability of the data, and smaller values indicate higher probability of obtaining the value and higher reliability. Thus, among the averages, differences are not significant if one is marked with the same lower case letter, and differences are significant if different lower case letters are marked.
The significance analysis steps of capital letters are the same as those of lowercase letters, the capital letters represent the significance level of P being 0.01, the difference poles are not significant if one capital letter with the same mark exists among the average numbers, and the difference poles are significant if the capital letters with different marks exist.
The test data in table 1 show that the single brassinolide agent has a certain effect of increasing the yield of wheat, and the single bixafen agent has little effect of promoting the growth of wheat ears and the yield; the bixafen and brassinolide are compounded according to the mass ratio of 30000:1-1000:1, so that the compound has obvious synergistic effect on the wheat yield; particularly, when the mass compounding ratio of bixafen to brassinolide is 10000:1, the yield of the wheat is increased by 8.22%. In general, the yield increasing effect of the bixafen and brassinolide compound preparation is obviously better than that of a single preparation, so that the pesticide composition prepared by mixing the bixafen and the brassinolide has good synergistic effect on promoting the growth and development of wheat and improving the yield.
Example 2 field efficacy test
Test time: 2018 years old
Test site: tuping county of Henan province
Test work: wheat (Zheng wheat 366)
The test method comprises the following steps: the embodiment of the invention is provided with 8 processing groups in total, which are respectively as follows: 75g/L bixafen single dose, 0.01 percent of 28-epihyperbrasactone single dose, 1 compound medicament with the mass ratio of the bixafen to the 28-epihyperbrasactone of 30000:1, 2 compound medicament with the mass ratio of the bixafen to the 28-epihyperbrasactone of 20000:1, 3 compound medicament with the mass ratio of the bixafen to the 28-epihyperbrasactone of 10000:1, 4 compound medicament with the mass ratio of the bixafen to the 28-epihyperbrasactone of 5000:1, 5 compound medicament with the mass ratio of the bixafen to the 28-epihyperbrasactone of 1000:1, and clear water as a blank control group CK.
The medicament of each treatment group is provided with low, medium and high concentration gradients, wherein the concentration gradients of 75g/L bixafen, the compound medicament 1, the compound medicament 2, the compound medicament 3, the compound medicament 4 and the compound medicament 5 of each treatment group are 50ga.i./hm2, 100ga.i./hm2 and 150ga.i./hm2, and the concentration gradient of 0.01% 28-epi-high brassinolide treatment group is 0.01ga.i./hm2, 0.05ga.i./hm2 and 0.1ga.i./hm2, and the specific test design is shown in Table 2.
Screening the field blocks with wheat rust for testing, and uniformly spraying the treatment group agents on the wheat leaves by adopting a leaf surface spraying method. Respectively 3 days, 7 days and 14 days after the application of the pesticide, a 5-point sampling investigation method is adopted, 5 points are randomly sampled in each test treatment area, disease classification is carried out according to relevant standards of national field tests, disease indexes and prevention and treatment effects are calculated, and test results are shown in table 2.
TABLE 2 Bixafen and brassinolide compound preparation for preventing and treating wheat rust
In table 2, significant difference analysis was also performed on the disease index and the prevention and treatment effect of the low, medium and high doses by using the Tukey method, that is, the mean values of the results of the treatment groups at one dose were compared two by two, and the difference between two by two was reflected whether significant or not. The significance analysis procedure was the same as the analysis procedure of table 1 above.
According to the results in the table 2, the compound preparation with different mass ratios of bixafen and brassinolide has excellent control effect on wheat rust, the compound preparation 3 has the best control effect under the same dosage, the control effect of the compound preparation composition on wheat rust is better than that of the single bixafen or brassinolide under the same dosage, when the dosage of the compound preparation reaches 100ga.i./hm2, the control effect of 5 compound preparations is more than 80%, especially when the dosage is 150ga.i./hm 32, the control effect of 2 after the compound preparation 1, the compound preparation 2 and the compound preparation 3 are applied for 7 days is more than 90%, which is obviously higher than that of the corresponding single preparation, which shows that the control effect of the compound preparation of bixafen and brassinolide has obvious synergistic effect on wheat rust, the effect of preventing and increasing yield after one-time application can be achieved, and the requirements of modern agriculture simplification technology can be met, has good popularization and application values in agricultural application.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A pesticide composition is characterized by comprising pyrazole amide bactericides and a plant growth regulator, wherein the pyrazole amide bactericides comprise bixafen, and the plant growth regulator comprises at least one of brassinolide and derivatives thereof;
the weight ratio of bixafen to brassinolide is 1000:1-30000: 1.
2. The pesticide composition as set forth in claim 1, wherein the weight ratio of bixafen to brassinolide is 10000: 1.
3. The agricultural chemical composition as claimed in any one of claims 1 to 2, wherein the agricultural chemical composition is in the form of a suspension, an emulsifiable concentrate or a water dispersible granule.
4. The pesticide composition as claimed in claim 3, wherein when the pesticide composition is in the form of water dispersible granules, the pesticide composition comprises the following components in percentage by mass: 10-75% of bixafen and brassinolide, 3-6% of wetting agent, 3-5% of dispersing agent, 2-6% of disintegrating agent, 0.5-3% of binder and the balance of filler to 100%.
5. The pesticide composition as set forth in claim 3, wherein when the pesticide composition is in the form of emulsifiable concentrate, the pesticide composition comprises the following components in percentage by mass: 10-50% of bixafen and brassinolide, 5-15% of emulsifier and the balance of solvent to 100%.
6. The pesticide composition as claimed in claim 3, wherein when the pesticide composition is in the form of a suspending agent, the pesticide composition comprises the following components in percentage by mass: 20-40% of bixafen and brassinolide, 3-5% of emulsifier, 1-2% of wetting agent, 0.5-2% of thickening agent, 6-10% of antifreezing agent, 3-5% of dispersing agent and water for supplementing to 100%.
7. The pesticide composition as set forth in claim 4, wherein the wetting agent comprises any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the dispersing agent comprises any one or more of methylene dinaphthalene sodium sulfonate, lignin calcium carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene; the disintegrating agent comprises any one or more of sodium chloride, urea, ammonium sulfate and sodium carbonate; the binder comprises any one or more of polyvinyl alcohol, polyethylene glycol and soluble starch.
8. The pesticide composition as claimed in claim 6, wherein the emulsifier comprises any one or more of phenethylphenol polyoxyethylene ether, fatty alcohol block polyether, NP-7; the wetting agent comprises any one or more of sodium lauryl sulfate, nekal BX, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the thickening agent comprises any one or more of gelatin, xanthan gum, hydroxymethyl cellulose, hydroxyethyl cellulose, polyvinylpyrrolidone and polyvinyl acetate; the antifreezing agent comprises any one or more of ethylene glycol, propylene glycol and glycerol; the dispersing agent comprises any one or more of methylene dinaphthalene sodium sulfonate, lignin calcium carbonate, alkyl naphthalene sulfonate and alkylphenol polyoxyethylene.
9. Use of a pesticidal composition according to any one of claims 1 to 2 for promoting the growth of crops and for controlling crop pests.
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| DE10215292A1 (en) * | 2002-02-19 | 2003-08-28 | Bayer Cropscience Ag | New N-biphenylyl-1-methyl-3-(di- or trifluoromethyl)-1H-pyrazole-4-carboxamides, useful as microbicides, especially fungicides and bactericides for protection of plants or materials such as wood |
| EP2105049A1 (en) * | 2008-03-28 | 2009-09-30 | Bayer CropScience AG | Method of plant growth promotion using amide compounds |
| EP2255626A1 (en) * | 2009-05-27 | 2010-12-01 | Bayer CropScience AG | Use of succinate dehydrogenase inhibitors to increase resistance of plants or parts of plants to abiotic stress |
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2019
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