CN107484765B - Synergistic weeding composition containing topramezone and topramezone - Google Patents
Synergistic weeding composition containing topramezone and topramezone Download PDFInfo
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- CN107484765B CN107484765B CN201710963335.7A CN201710963335A CN107484765B CN 107484765 B CN107484765 B CN 107484765B CN 201710963335 A CN201710963335 A CN 201710963335A CN 107484765 B CN107484765 B CN 107484765B
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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
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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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
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/10—Sulfones; Sulfoxides
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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
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
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- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention belongs to the technical field of pesticides, and particularly relates to a synergistic weeding composition containing topramezone and used for preventing and treating weeds. The synergistic weeding composition containing the topramezone and the topramezone comprises the effective components of the topramezone and the topramezone, wherein the weight ratio of the topramezone to the topramezone is 1: 2-8: 1. The composition can effectively prevent and remove weeds in wheat fields and corn fields, particularly drug-resistant weeds, and has the characteristics of wide weed control spectrum, obvious synergistic effect, low application dosage and high safety.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a synergistic weeding composition containing topramezone and topramezone.
Background
Chemical weeding by adopting a herbicide is the most economic and effective means in preventing and removing farmland weeds. However, the problems of drug resistance and resistance evolution of weeds are easily caused by long-term continuous high-dose use of a single variety or single action mode of chemical herbicide. The reasonable compounding or mixing of the herbicide compound has the advantages of expanding the weed spectrum, improving the control effect, delaying the occurrence and development of drug resistance and drug resistance of weeds and the like, and is one of the most effective methods for solving the problems.
The diconazole is a newly developed broadleaf weed herbicide, has obvious effect on controlling broadleaf weeds such as cleavers, descurainia sophia, shepherd's purse and maidenhair, and has obvious control effect on broadleaf weeds such as descurainia sophia, shepherd's purse and maidenhair which generate drug resistance to acetolactate synthase (ALS) inhibitor herbicides (tribenuron-methyl, mesosulfuron-methyl, flucarbazone and pyroxsulam).
The triketone compound is a p-hydroxyphenyl pyruvate dioxygenase (HPPD) herbicide. The HPPD inhibitor has the characteristics of broad-spectrum herbicidal activity, can be used before and after germination, and is dead after albinism of weeds. The risk of weed resistance of the HPPD inhibitor herbicide is greatly lower than that of an acetyl coenzyme A carboxylase (ACCase) inhibitor and an acetolactate synthase (ALS) inhibitor, and the cross resistance caused by target resistance does not exist with common ALS inhibitors such as tribenuron-methyl, bensulfuron-methyl, florasulam and the like.
The synergistic weeding composition is developed by combining the characteristics of the topramezone, and has important significance for controlling drug-resistant weeds in wheat fields and corn fields.
Disclosure of Invention
In order to solve the problems in the prior art and combine the characteristics of the topramezone, the invention provides the synergistic weeding composition containing the topramezone and the topramezone, which can effectively prevent and kill weeds and drug-resistant weeds in wheat fields and corn fields, and has the characteristics of enlarged weed control spectrum, obvious synergistic effect, small application amount and high safety.
A synergistic herbicidal composition containing topramezone and triketone compounds comprises an active ingredient A and an active ingredient B which have herbicidal effect, wherein the active ingredient A is the compound topramezone.
The active component B is one or more of triketone compounds topramezone, mesotrione and sulcotrione.
Wherein, the weight ratio of A to B is 1-90: 1-90, preferably the weight ratio of A to B is 1-50: 1-50, 1-20: 1-20, and the active component A and the active component B are mixed in the limited weight ratio range to obtain the technical effect of synergy.
The mass percentage of the active ingredient A and the active ingredient B in the synergistic weeding composition accounts for 1-95 percent of the total amount, and preferably 10-80 percent.
The synergistic herbicidal composition of the present invention comprises 1 to 95 parts of active ingredients and 5 to 99 parts of common agricultural chemical adjuvants. Adjuvants refer to carriers, surfactants, and the like that aid in the application of the active ingredient.
The carrier mainly refers to substances commonly used in the pesticide industry, such as pottery clay, silicate, solid fertilizer, water, alcohols, ketones and the like.
The surfactant comprises an emulsifier, a dispersant, a wetting agent and the like, is a common variety in the pesticide industry, such as salts of polyacrylic acid, lignosulfonate, alkyl sulfate, lauryl ether sulfate, lauryl alcohol polyethylene glycol ether acetal, sorbitol ester, modified protein, hydrophobically modified starch, polyvinyl alcohol and the like, and at least one surfactant is required to be present, so that the dispersant application of the active ingredients in water is facilitated.
The compositions may also contain various other components such as protective colloids, binders, thickeners, thixotropic agents, penetrants, stabilizers, chelating agents, dyes, colorants, and polymers.
The compositions of the present invention may be diluted or used directly by the user prior to use. The formulation can be prepared by conventional processing methods, i.e., mixing the active substance with a liquid solvent or solid carrier, and adding one or more surfactants such as dispersants, stabilizers, wetting agents, binders, defoamers, etc.
The specific preparation of the weeding composition is missible oil, a suspending agent, a microemulsion, a suspoemulsion, an emulsion in water, a dispersible oil suspending agent, wettable powder or water dispersible granules (dry suspending agent).
When the composition is prepared into wettable powder, the composition comprises the following components in percentage by weight: the active ingredient A is 1-70%, the active ingredient B1-60%, the dispersing agent is 6-10%, the wetting agent is 2-10%, and the rest is the filler.
When the composition is prepared into water dispersible granules, the composition comprises the following components in percentage by weight: the active ingredient A is 1-75%, the active ingredient B is 1-60%, the dispersing agent is 3-12%, the wetting agent is 3-8%, the disintegrating agent is 1-10%, the binder is 1-9%, and the balance is filler.
The composition is prepared into a suspending agent and comprises the following components in percentage by weight: the active component A1-40%, the active component B1-30%, the dispersant 2-10%, the wetting agent 2-10%, the defoamer 0.1-1%, the binder 0.1-1.5%, the antifreeze 0.1-8%, and deionized water added to 100%.
The composition is prepared into a suspension emulsion and comprises the following components in percentage by weight: 0.1-40% of active ingredient A, 0.1-30% of active ingredient B, 3-10% of emulsifier, 3-10% of dispersant, 0.1-3% of defoamer, 0.1-3% of thickener, 0.1-8% of antifreeze, 0.05-3% of stabilizer and water added to 100%.
When the composition is prepared into an aqueous emulsion, the composition comprises the following components in percentage by weight: active component A2-40%, active component B2-30%, solvent 2-10%, emulsifier 2-12%, dispersant 2-10%, emulsifier 0.2-6%, antifreeze agent 0.1-8%, defoaming agent 0.1-3%, thickener 0.1-2%, deionized water to 100%.
The composition when prepared into microemulsion comprises the following components in percentage by weight: active component A1-35%, active component B1-35%, emulsifier 4-10%, solvent 2-12%, antifreeze agent 4-12%, stabilizer 0.5-5%, deionized water to 100%.
In a further preferred embodiment, the herbicidal composition also comprises a safener C selected from one or more of mefenpyr-diethyl, cloquintocet-mexyl, isoxadifen, cyprosulfamide, naphthalic anhydride, clomazone, R-28725, AD-67, CGA-154281, CGA-43089, CGA-43089, Hoe-70542, clomazone, cloquintocet-mexyl, BAS-145138, MON-13900, quinoline derivatives, sulfonylurea safeners, 2, 4-D, novel antidotes T and gibberellins.
The composition can be applied to plant leaves to be treated by a spraying method, and field efficacy tests show that the composition is applied to the leaves of the plants before wheat jointing and corn 2-leaf stage in the stages with different weeds of 1-4 leaves, has no phytotoxicity symptom, and has good safety to the wheat and the corn. The weed control effect reaches more than 95 percent in 30 days, the control effect is obviously increased along with the increase of the dosage, the weeds, namely cleavers, descurainia sophia, shepherd's purse, maigong, veronica officinalis, sun euphorbia herb and the like in the whole growth period of crops can be controlled by one-time application, the weeding effect is obvious, the weeding composition is environment-friendly, and the weeding composition has no influence on next-stubble crops.
The herbicidal compositions according to the invention also have the following advantages:
(1) the weeding composition is easy to degrade in the environment and is safe to current crops and succeeding crops.
(2) The weeding composition disclosed by the invention is low in cost and convenient to use, and has great economic and social benefits when popularized and applied.
(3) The weeding composition disclosed by the invention can be used for preventing and removing non-resistant weeds and weeds resistant to an ALS inhibitor, and has a good weeding effect.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. Further, modifications to the invention, as would be obvious to those of ordinary skill in the art, are intended to be included within the scope of the present invention as defined by the following claims and their equivalents.
Example A emulsifiable concentrate
1.1) active ingredient A, and active ingredient B is topramezone
The formula comprises the following components: 5 percent of A, 2.5 percent of topramezone, 4 percent of cyclohexanone, 6 percent of calcium dodecyl benzene sulfonate, 5 percent of phenethyl phenol polyoxyethylene ether and 100# aromatic solvent oil.
1.2) active ingredient A, active ingredient B is mesotrione
The formula comprises the following components: 2.5 percent of A, 7.5 percent of mesotrione, 5 percent of cyclohexanone, 4 percent of calcium dodecyl benzene sulfonate, 6 percent of nonylphenol polyoxyethylene ether and 100# aromatic solvent oil.
1.3) active ingredient A, active ingredient B is sulcotrione
The formula comprises the following components: 2.5 percent of A, 12.5 percent of sulcotrione, 10 percent of isopropanol, 4 percent of calcium dodecyl benzene sulfonate, 6 percent of castor oil polyoxyethylene ether and 150# aromatic solvent oil. A
The processing process of the missible oil comprises the following steps: putting all materials into a batching kettle, stirring and dissolving until the materials are completely transparent, transferring the materials to a storage tank for filling after the materials are qualified in the test.
Test of drug efficacy
1) Test conditions
1.1) test target
Capsella bursa-pastoris (Capsellabrusa-pastoris), Echinochlorus cruris (Echinochlorus-galli) and Descurainiaoxyphilus (Descurainiasophia) were collected from the test base of Taian city, Shandong province.
The weeds are cultured by a pot culture method, plastic nutrition bowls with the size of 180 mm multiplied by 140mm are placed in an enamel tray, surface soil which is collected from a farmland and is dried and sieved is filled in the enamel tray, the soil humidity is controlled to be 20% in the initial stage, weed seeds with full and uniform seeds are selected, the weed seeds are soaked in warm water with the temperature of 25 ℃ for 6 hours, the weed seeds are accelerated to germinate in a biochemical incubator (dark) with the temperature of 28 ℃, the weed seeds which just expose white are evenly placed on the surface of the soil, and then the soil is covered with 0.7 cm. The treated medicament is placed in a controllable sunlight greenhouse for culture, and a certain amount of water is periodically added into an enamel tray to keep the soil moist.
1.2) culture conditions
The method is carried out in a controllable sunlight greenhouse at the temperature of 18-30 ℃ under natural illumination and with the relative humidity of 57-72%.
The soil type is loam, the organic matter content is 1.63 percent, the pH value is 7.1, the alkaline hydrolysis nitrogen is 84.3mg/kg, the quick-acting phosphorus is 38.5mg/kg, and the quick-acting potassium is 82.1 mg/kg.
1.3), instrumentation
3WP-2000 model walking spray tower, Minn Jing agricultural machinery research institute of agricultural department. Ten thousandth electronic balance of GA110 type (germany); ZDR2000 intelligent data recorder (hangzhou ze large instruments ltd); SPX type intelligent biochemical incubator (Ningbo Jiangnan Instrument factory).
2) Design of experiments
2.1), reagents
2.1.1) test Agents
The required active ingredients B are all commercial raw medicines, the active ingredient A is a compound shown in a formula (I), and the compound is produced by Qingdao resistant weed control Limited company.
The raw medicines are all diluted by using an emulsifier T-80 aqueous solution with the content of 0.1 percent by using acetone as a solvent.
2.2) test treatment
2.2.1), dose setting
When determining the ratio or content of the active ingredient A and the active ingredient B, the main purpose of the formula should be considered in consideration of the action characteristics of the two medicaments and the toxicity thereof. On the basis of preliminary experiments, the single use and the mixed use amount of the active ingredient A and the active ingredient B are respectively shown in tables. Water without drug, containing the same solvent and emulsifier was used as a blank.
2.2.2), test repetition
Each treatment was repeated 4 times, 3 pots each time, 20 weed seeds were sown per pot, 60 plants each time.
2.3) treatment method
The test was performed 1 time in total. And (3) thinning after 1-leaf period of 2 weeds, keeping 15 weeds in each pot, keeping 45 weeds in each treatment, and then continuously culturing until the 3-4 leaf period of the shepherd's purse and the barnyard grass and the 3-leaf period of the descurainia sophia are treated.
3) Test method
The potting method is adopted. The weed cultivation is shown in 2.1, and is carried out according to 'herbicide according to the indoor bioassay test criteria for pesticides'.
4) Data survey and statistical analysis
4.1) investigation method
The complete survival weed seedlings are cut off along the soil surface by a blade by adopting an absolute number survey method, and the fresh weight of the weeds is weighed by an analytical balance. For the weeds that have died, the fresh weight is zero.
4.2), statistical analysis of data
The theoretical fresh weight inhibition rate (E0 ═ X + Y-X Y/100) of each treatment mixed combination is calculated by a Gowing method, and then compared with the actually measured inhibition rate (E), the combined action type of the two mixed combinations on the weeds is evaluated, and when the E-E0 value is more than 10 percent, the effect is synergistic, when the E-E0 value is less than-10 percent, the effect is antagonistic, and when the E-E0 value is between-10 percent and 10 percent, the effect is additive. And the optimal proportion is determined according to factors such as actual control effect, characteristics of the herbicide, balance of the formula and the like.
Wherein X is the fresh weight inhibition rate when the dosage of the active component A is P; y is the fresh weight inhibition rate of the active component B when the dosage is Q.
The statistical results are shown in the following table.
TABLE 1 actual control and combined action of active ingredient A on weeds in combination with topramezone (Gowing method)
TABLE 2 actual control and combined action of active ingredient A in combination with mesotrione on weeds (Gowing method)
TABLE 3 actual control and combined action of active ingredient A in combination with sulcotrione on weeds (Gowing method)
The test results in the table show that the composition has good control effect on broad-leaved weed shepherd's purse, has obvious synergistic effect among active ingredients, and has particularly obvious synergistic effect on barnyard grass.
2) And (3) testing the effect of ALS inhibition resistance descurainia sophia.
The seeds of descurainia sophia are collected in Taian city, Shandong province in 2014 and have resistance to tribenuron-methyl.
The test method comprises the following steps: and (3) uniformly accelerating germination of the weed seeds, and uniformly sowing the pretreated weed seeds to be tested on the soil surface.
Thinning is carried out before pesticide application, each pot is fixed to 30 plants, and each pot is used for treating 4 pots of test materials. Carrying out stem and leaf spraying treatment on weeds, investigating the fresh weight of the overground part of the weeds, calculating the fresh weight control effect (the control effect of the plants in the table is the average value of 4 times of repetition), and counting the test condition after 45 days of the test, wherein the results are shown in table 4:
weed control (%) ratio (fresh weight of weeds in control area of clear water-fresh weight of weeds in agent treatment area)/fresh weight of weeds in control area of clear water
TABLE 4 test of ALS inhibitory resistance of descurainia sophia
The application treatment examples 1.1, 1.2 and 1.3 can effectively prevent and kill the descurainia sophia which generates target resistance to tribenuron-methyl, and have no cross resistance with tribenuron-methyl.
Through a large number of tests and explorations, the invention discovers that the mixure of the diazole-mefone and the triketone herbicide topramezone has obvious effect on controlling the weeds such as cleavers, descurainia sophia, shepherd's purse, maigong, barnyard grass and the like, has no interactive resistance on the weeds which generate drug resistance on acetolactate synthase (ALS) inhibitor herbicides (tribenuron-methyl, mesosulfuron-methyl, flucarbazone-sodium and pyroxsulam), has obvious control effect, is obviously higher than the single use of the two herbicides, shows obvious synergistic action, can reduce the application amount, improve the safety of crops, reduce the pollution to the environment and has good prospect.
Claims (8)
1. A synergistic herbicidal composition containing topramezone and topramezone is characterized in that the active ingredient A of the herbicidal composition is the compound topramezone, and the active ingredient B is the topramezone; wherein the weight ratio of the topramezone to the topramezone is 1: 2-8: 1.
2. The synergistic herbicidal composition as claimed in claim 1, wherein the specific formulation of said herbicidal composition is emulsifiable concentrate, suspension concentrate, microemulsion, suspoemulsion, aqueous emulsion, dispersible oil suspension, wettable powder or water dispersible granule.
3. The synergistic herbicidal composition according to claim 1, characterized in that the weight percentage of topramezone and topramezone in the herbicidal composition is 1 to 95% of the total amount.
4. The synergistic herbicidal composition according to claim 3, characterized in that the weight percentage of topramezone and topramezone in the herbicidal composition is 10 to 80% of the total amount.
5. A synergistic herbicidal composition according to claim 1, characterized in that it further comprises a safener C.
6. Synergistic herbicidal composition according to claim 5, characterized in that the safener C is selected from one or more of mefenpyr, cloquintocet-mexyl, isoxadifen, cyprosulfamide, naphthalic anhydride, clomazone, R-28725, AD-67, CGA-154281, CGA-43089, Hoe-70542, clomazone, cloquintocet-mexyl, BAS-145138, MON-13900, quinoline derivatives, 2, 4-D, novel antidotes T and gibberellins.
7. The synergistic herbicidal composition as claimed in any of claims 1 to 6, wherein the composition is applied by spraying after emergence of the weeds until 4-leaf stage of the weeds, and is effective in controlling weeds in wheat fields.
8. The synergistic herbicidal composition as claimed in claim 7, wherein said wheat field weeds are cleavers, descurainia sophia, shepherd's purse, maica, veronica, euphorbia hirta, alopecurus, japanese alopecurus, lolium multiflorum, brome, poa annua, etc. resistant to ALS inhibitor herbicides and Accase inhibitors;
wherein the ALS inhibitor herbicide is selected from tribenuron-methyl, mesosulfuron-methyl, flucarbazone-methyl or pyroxsulam; the Accase inhibitor is selected from fenoxaprop-P-ethyl, clodinafop-propargyl, pinoxaden or tralkoxydim.
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| CN201610239794.6A CN105875620B (en) | 2016-04-18 | 2016-04-18 | A kind of Synergistic herbicide compositions of humulone containing polybenzobisoxazole and trione compounds |
| CN201710963335.7A CN107484765B (en) | 2016-04-18 | 2016-04-18 | Synergistic weeding composition containing topramezone and topramezone |
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| CN108535369B (en) * | 2018-03-14 | 2021-03-12 | 山东省农业科学院植物保护研究所 | Method for detecting residual quantity of topramezone in wheat planting |
| CN113142217B (en) * | 2018-07-21 | 2022-04-22 | 青岛清原化合物有限公司 | Ternary herbicidal composition containing HPPD inhibitor herbicide and application thereof |
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