阅读说明：本技术 一种苯唑草酮、氟噻草胺及莠去津的农药组合物 (Pesticide composition containing topramezone, flufenacet and atrazine ) 是由 张方贺 邓晓杰 冀琳琳 张宗英 许兴志 刘坤 赵艳龙 乔志强 于 2020-05-29 设计创作，主要内容包括：本发明涉及农药技术领域,具体地说是一种苯唑草酮、氟噻草胺及莠去津的农药组合物,本发明中农药组合物包括有效成分和辅料,有效成分为苯唑草酮、氟噻草胺和莠去津的组合物,辅料包括表面活性剂、填料、稳定剂、防冻剂；本发明提供一种苯唑草酮、氟噻草胺及莠去津的农药组合物,根据苯唑草酮、氟噻草胺及莠去津三种活性成份的不同作用机理进行三元复配,可优势互补,扩大了杂草防治谱,提高了除草效果,做到一次喷药既能杀死杂草又能起到封地的作用,对农业杂草的综合防治具有重要意义。(The invention relates to the technical field of pesticides, in particular to a topramezone, flufenacet and atrazine pesticide composition, which comprises an effective component and auxiliary materials, wherein the effective component is a topramezone, flufenacet and atrazine composition, and the auxiliary materials comprise a surfactant, a filler, a stabilizer and an antifreezing agent; the invention provides a pesticide composition of topramezone, flufenacet and atrazine, which is prepared by ternary compounding according to different action mechanisms of three active ingredients of topramezone, flufenacet and atrazine, has complementary advantages, widens the weed control spectrum, improves the weeding effect, can kill weeds and play a role in sealing after being sprayed once, and has important significance in the comprehensive control of agricultural weeds.)

1. A pesticide composition containing topramezone, flufenacet and atrazine is characterized by comprising an effective component and auxiliary materials.

2. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the active ingredients are a composition of topramezone, flufenacet and atrazine.

3. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the content of the effective components in the pesticide composition accounts for 20-80% of the total weight of the pesticide composition.

4. A pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 2, wherein: according to the weight part ratio, the topramezone comprises the following components in parts by weight: flufenacet: the proportion of atrazine is 1-8: 4-20: 10-40.

5. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 4, wherein: according to the weight part ratio, the topramezone comprises the following components in parts by weight: flufenacet: the proportion of atrazine is 2: 8: 20.

6. the pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the auxiliary materials comprise a surfactant, a filler, a stabilizer and an antifreezing agent;

the surfactant is any one or more of anionic surfactant 1880-10, composite surfactant A800, composite surfactant EFW, carboxylate dispersant S100, dispersant N, alkyl naphthalene sulfonate or phenethyl phenol polyoxyethylene ether phosphate;

the filler is any one of montmorillonite, talcum powder, diatomite, white carbon black, ammonium sulfate, corn starch, organic bentonite or methyl oleate;

the stabilizer is one or more of citric acid, 4801, 4805, M-4 or antioxidant;

the antifreezing agent is any one of urea or solvent oil.

7. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 6, wherein: according to the weight portion ratio, the weight portion of the surfactant accounts for 10-20 portions of the total weight of the auxiliary materials; the weight portion of the stabilizer accounts for 1-2 portions of the total weight of the auxiliary materials; the weight portion of the antifreezing agent accounts for 3-5 portions of the total weight of the auxiliary materials; the weight portion of the filler accounts for 20-70 portions of the total weight of the auxiliary materials.

8. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the pesticide composition is applied to preventing and removing gramineous weeds and broadleaf weeds in corn fields.

9. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the pesticide composition can be used for pre-emergence and post-emergence weeding and has a sealing effect.

10. The pesticidal composition comprising topramezone, flufenacet and atrazine according to claim 1, wherein: the pesticide composition is in the form of suspending agent, water dispersible granules, missible oil, microemulsion, aqueous emulsion or powder.

Technical Field

The invention relates to the technical field of pesticides, and particularly relates to a pesticide composition containing topramezone, flufenacet and atrazine.

Background

The topramezone is a selective herbicide of 4- [3- (4, 5-dihydroisoxazole-3-yl) -2-methyl-4-methylsulfonyl ] -1-methyl-5-hydroxy-1H-pyrazole-type benzoyl pyrazolone, is absorbed by roots, seedlings and leaves after seedling stem and leaf treatment, is conducted to meristem in plants to the top and the base to inhibit 4-HPP L, inhibit plastoquinone and indirectly inhibit the biosynthesis of carotenoid, and disturb chloroplast and function, and finally kill weeds.

Atrazine, chemical name: 2-chloro-4-ethylamino-6-isopropylamino-1, 3, 5-triazine. The triazine compound herbicide has the advantages of systemic selectivity, closed herbicide before and after seedling, root absorption as the main part, wide weed control spectrum, capability of preventing and killing various annual gramineae and broadleaf weeds, and good selectivity on corn. The photosynthesis of weeds is inhibited and the weeds are died by being absorbed and conducted upwards mainly by the roots of the plants. The atrazine has long lasting period, is harmful to afterculture sensitive crops such as wheat, soybean, rice and the like, has the lasting period of 2-3 months, and can be mixed with other medicaments by reducing the dosage.

Flufenacet, chemical name: 4' -fluoro-N-isopropyl-2- [5- (trifluroglycoside) -1,3, 4-thiadiazo-2-imine ] acetamide; 4' -fluoro-N-isopropyl-2- (5-trifluoromethyl-1, 3, 4-thiadiazol-2-yloxy) acetanilide. Belongs to an aryloxyacetamide compound, is used before and after the soil bud, and has main target sites of possibly fatty acid metabolism for inhibiting cell division and growth. Can be widely used for preventing and killing annual gramineous weeds, nutgrass flatsedge and small-grain broadleaf weeds, and is safe to corn and environment.

The application number is 201510268111.5, the topramezone, sulfentrazone and atrazine-containing corn post-emergence weeding composition is used for corn seedlings, the topramezone, sulfentrazone and atrazine are used for the weeding composition for the corn seedlings, and field efficacy tests of 2 years show that the weed control effect of 80 ml/mu reaches over 75.3% in 10 days and over 90.5% in 30 days, the dosage of the weeding composition required for weeding is large, and the production cost is increased; the addition amount of raw materials is large when the weeding composition is prepared, and the economic benefit is reduced.

The single use of a drug for weed control for a long time can only kill a part of weeds, and is easy to cause the problems of enhanced drug resistance of some weeds, reduced drug effect and the like. In the prior art, no pesticide prepared by compounding topramezone, flufenacet and atrazine is available, and the pesticide is used for preventing and killing gramineous weeds, sedges and broadleaf weeds.

Disclosure of Invention

The invention provides a topramezone, flufenacet and atrazine pesticide composition, aiming at solving the problems that the existing pesticide or pesticide composition for weeding only can kill part of weeds by singly using one drug for a long time, and is easy to cause the enhancement of the drug resistance of some weeds and the reduction of the drug effect of the drug, and the like.

The invention aims to provide a pesticide composition containing topramezone, flufenacet and atrazine, which comprises an effective component and an auxiliary material;

the flufenacet is mainly used for inhibiting cell division to play a role, reducing the synthesis of nutrients of weeds, and can widely control gramineous weeds, sedges and some small-sized broad-leaved weeds, the atrazine mechanism is used for inhibiting photosynthesis of weeds, so that the weeds are withered, and can control various annual gramineous weeds and broad-leaved weeds.

Further, the content of the effective components in the pesticide composition accounts for 20-80% of the total weight of the pesticide composition.

Further, the topramezone comprises the following components in parts by weight: flufenacet: the proportion of atrazine is 1-8: 4-20: 10-40.

Further, the topramezone comprises the following components in parts by weight: flufenacet: the proportion of atrazine is 2: 8: 20.

further, the auxiliary materials comprise a surfactant, a filler, a stabilizer and an antifreezing agent;

further, the surfactant is any one or more of anionic surfactant 1880-10, composite surfactant A800, composite surfactant EFW, carboxylate dispersant S100, dispersant N, alkyl naphthalene sulfonate or phenethyl phenol polyoxyethylene ether phosphate;

further, the filler is any one of montmorillonite, talcum powder, diatomite, white carbon black, ammonium sulfate, corn starch, organic bentonite or methyl oleate;

further, the stabilizer is one or more of citric acid, 4801, 4805, M-4 or antioxidant;

further, the antifreeze is any one of urea or solvent oil.

Further, the weight portion of the surfactant accounts for 10-20 parts of the total weight of the auxiliary materials; the weight portion of the stabilizer accounts for 1-2 portions of the total weight of the auxiliary materials; the weight portion of the antifreezing agent accounts for 3-5 portions of the total weight of the auxiliary materials; the weight portion of the filler accounts for 20-70 portions of the total weight of the auxiliary materials.

Furthermore, the pesticide composition is applied to preventing and removing gramineous weeds and broadleaf weeds in corn fields.

Further, the pesticide composition can be used for pre-emergence and post-emergence weeding and has a sealing effect.

Furthermore, the pesticide composition is in the form of suspending agent, water dispersible granule, missible oil, microemulsion, aqueous emulsion or powder, but not limited to the formulation.

The pesticide composition provided by the invention is prepared from topramezone, flufenacet and atrazine serving as main active ingredients and auxiliary ingredients, and the obtained pesticide composition is wide in application range and meets the requirements of different farmland environments.

The invention has the beneficial effects that:

(1) the invention provides a pesticide composition of topramezone, flufenacet and atrazine, which is prepared by ternary compounding according to different action mechanisms of three active ingredients of topramezone, flufenacet and atrazine, has complementary advantages, widens the weed control spectrum, improves the weeding effect, can kill weeds and play a role in sealing after being sprayed once, and has important significance in the comprehensive control of agricultural weeds.

(2) The invention provides a pesticide composition of topramezone, flufenacet and atrazine, which is prepared by mixing topramezone, flufenacet and atrazine in a weight ratio of 2: 8: the 20 proportion is reasonably compounded, so that the drug effect of the drug can be improved, the weed control spectrum is expanded, and the generation of drug resistance of weeds is delayed.

(3) The invention provides a topramezone, flufenacet and atrazine pesticide composition, which is prepared by compounding and combining topramezone, flufenacet and atrazine according to different action mechanisms and action targets, can expand the herbicide controlling spectrum and improve the pesticide effect, can effectively prevent and kill all emerged weeds in corn fields and gramineous broadleaf weeds which are not emerged and propagated from seeds in one year, can obviously reduce the using amount of atrazine, improves the environmental safety and reduces the pollution to the environment under the condition of ensuring the pesticide effect.

(4) The invention provides a pesticide composition of topramezone, flufenacet and atrazine, which is prepared by indoor bioassay determination, namely indoor toxicity determination and formula screening of topramezone, flufenacet and atrazine on cornfield weeds and green bristlegrass, wherein the weight ratio of topramezone to flufenacet to atrazine is 2: 8: the composition has an obvious synergistic effect on the green bristlegrass herb when the dosage is 20 hours, can effectively reduce the using dosage of pesticides, and has the most obvious synergistic effect.

(5) The invention provides a pesticide composition of topramezone, flufenacet and atrazine, which can overcome the defect that atrazine is ineffective to perennial weeds after the flufenacet is added, reduce the using amount of atrazine and reduce the phytotoxicity of atrazine to later-crop sensitive crops such as wheat, soybean and rice.

(6) The invention provides a topramezone, flufenacet and atrazine pesticide composition, wherein the action mechanism of the topramezone can inhibit 4-HPP L, inhibit plastoquinone and indirectly inhibit biosynthesis of carotenoids, chloroplast and function disturbance, and is used for preventing and killing gramineous weeds and partial broadleaf weeds in corn fields, the action mechanism of the flufenacet mainly plays a role by inhibiting cell division, so that the synthesis of nutrients of weeds is reduced, gramineous weeds, sedge and small-particle broadleaf weeds can be widely prevented and killed, the action mechanism of the atrazine is to inhibit photosynthesis of the weeds, so that the weeds are withered, so that various annual gramineous weeds and broadleaf weeds can be prevented and killed, the action mechanisms of the topramezone, the flufenacet and the atrazine are different, when the control effect of the weeds reaches more than 80% per 70 ml/mu 15 days, the control effect of the weeds reaches 90% per 30 days, the control effect is obviously enhanced along with the increase of the dosage, and the control spectrum is expanded compared with the single use of one or two components, so that the topramezone, the flufenacet, the.

(7) The invention provides a pesticide composition of topramezone, flufenacet and atrazine, which is characterized in that tests verify that the total weed control effect is more than 73 percent in 15 days, more than 84 percent in 30 days after application of a ternary composition of different proportions of topramezone, flufenacet and atrazine, the total weed control effect is more than 52 percent in 15 days and more than 65 percent in 30 days after application of a binary composition of different proportions of topramezone and atrazine.

(8) The compound composition of topramezone, flufenacet and atrazine in the application can effectively prevent and kill various weeds such as corn field barnyard grass, green bristlegrass, amaranth, black nightshade and the like, the compound of topramezone, flufenacet and atrazine has obvious synergistic effect on green bristlegrass, and particularly when the weight ratio of the topramezone to the flufenacet to the atrazine is 2: 8: the synergistic effect is most obvious at 20 hours and is 15.8, which shows that the compounded synergistic effect of the topramezone, the flufenacet and the atrazine is most obvious under the mixture ratio, the combined use of the three substances can effectively reduce the use dosage of the pesticide, and the control effect of 15d and 30d on the total grass plants in the corn field is 80.1-93.2 percent and 90.0-96.8 percent respectively under the test dosage of 21-33 g/mu of active ingredients.

The specific implementation mode is as follows:

in order to more clearly and specifically describe the pesticide composition provided by the embodiments of the present invention, the following description will be given with reference to specific embodiments.

The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.

The materials and reagents used in the following examples are all commercially available products unless otherwise specified.

The equipment used in the examples described below included a batch kettle, a colloid mill, a homomixer, and a sand mill.

The technical solution of the present invention will be described in detail with specific examples, but the present invention is not limited thereto.

In the following embodiments, the surfactant is any one or more of anionic surfactant 1880-10, composite surfactant A800, composite surfactant EFW, carboxylate dispersant S100, dispersant N, alkyl naphthalene sulfonate or phenethyl phenol polyoxyethylene ether phosphate;

the filler is any one of montmorillonite, talcum powder, diatomite, white carbon black, ammonium sulfate, corn starch, organic bentonite or methyl oleate;

the stabilizer is one or more of citric acid, 4801, 4805, M-4 or antioxidant;

the antifreezing agent is any one of urea or solvent oil.

According to the weight portion ratio, the weight portion of the surfactant accounts for 10-20 portions of the total weight of the auxiliary materials; the weight portion of the stabilizer accounts for 1-2 portions of the total weight of the auxiliary materials; the weight portion of the antifreezing agent accounts for 3-5 portions of the total weight of the auxiliary materials; the weight portion of the filler accounts for 20-70 portions of the total weight of the auxiliary materials.