CN116158441A - A kind of seed treatment composition containing dinotefuran, difenoconazole and penconazole - Google Patents

Abstract

The invention relates to the field of pesticides, in particular to a seed treatment composition containing dinotefuran, difenoconazole and cconazole, which is used to solve the problem that the use of dinotefuran to treat seeds can endow the seeds with good pest resistance , by treating the seeds with difenoconazole and penconazole, the seeds can be endowed with good anti-pathogenic properties, and can avoid seed damage and death, and eventually a large area of seedlings cannot emerge. However, dinotefuran and difenoconazole The long-term use of azole and penconazole alone is likely to cause drug resistance, and a large amount of use will cause environmental pollution; by reasonably compounding the three, the prepared seed treatment composition has the advantages of the three and can be synergistic. The protection of seeds can significantly improve the emergence rate of seeds and the control effect of diseases and insect pests. It not only avoids the occurrence of drug resistance, but also improves the protection effect on seeds, reduces the amount of chemicals used, and reduces environmental pollution.

Description

A kind of seed treatment composition containing dinotefuran, difenoconazole and penconazole

technical field

The invention relates to the field of pesticides, in particular to a seed treatment composition containing dinotefuran, difenoconazole and cconazole.

Background technique

Dinotefuran is a new type of neonicotinoid insecticide. Compared with traditional neonicotinoid insecticides, dinotefuran has higher insecticidal activity, wider insecticidal spectrum and better performance. It has high animal safety and has certain toxicity to aquatic animals, birds and bees. It has a good control effect on Lepidoptera, Hemiptera, Diptera, Beetles and other pests. The molecular structure is as follows:

Dinotefuran has contact killing, stomach poisoning and systemic activity, and its principle of action is to compete with acetylcholine ACh for the binding sites on acetylcholine receptors (nAChRs), causing insects to continuously appear nerve impulses, preventing normal neurotransmission and paralyzing insects It has a wide range of insecticides and a long period of validity, especially for piercing and sucking pests.

Difenoconazole is a low-toxic heterocyclic fungicide pesticide with a structural formula as follows:

The mechanism of action of difenoconazole is to interfere with the normal growth of pathogenic bacteria by inhibiting the biosynthesis of ergosterol, and has a strong inhibitory effect on the spore formation of plant pathogenic bacteria. It is a sterol demethylation inhibitor and has ideal systemic properties. , can be quickly absorbed by plants after application.

Buconazole is a triazole fungicide, an ergosterol biosynthesis inhibitor, and has systemic, protective and therapeutic effects. Its structural formula is as follows:

The mechanism of action of Buconazole is to hinder and inhibit the synthesis of ergosterol in pathogenic fungi at different points of action, resulting in cell membrane damage and death.

Seeds and seedlings are vulnerable to damage and infection by various underground and above-ground pests and pathogenic bacteria, and are the most vulnerable link in the growth process of crops; seeds and seedlings are eaten by pests, or infected by pathogenic bacteria, and diseased seedlings and dead seedlings appear. It will reduce the effective number of crops per unit area, resulting in a large-scale reduction in yield and quality of crops.

Treating the seeds with dinotefuran can give the seeds good insect resistance performance, and treating the seeds with difenoconazole and cconazole can give the seeds good anti-pathogenic performance, so the seeds can be prevented from being damaged and killed. In the end, there will be a phenomenon that large areas cannot emerge, but the long-term use of the above chemical agents alone is likely to cause drug resistance, and a large amount of use will pollute the environment. It is essential to find a synergistic composition that can improve the seed protection effect and reduce the dosage of active ingredients. The point of invention.

Contents of the invention

In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of seed treatment composition containing dinotefuran, difenoconazole and cconazole: through dinotefuran, difenoconazole and cconazole Reasonable compounding makes the prepared seed treatment composition have the advantages of the three, and can protect the seeds synergistically. It solves the problem that the use of dinotefuran to treat the seeds can endow the seeds with good insect resistance. The treatment of seeds with azoles and cloconazole can endow the seeds with good anti-pathogenic properties, prevent the seeds from being damaged and cause death, and eventually cause a large area of seedlings to fail to emerge. Use is likely to cause drug resistance, and large-scale use will cause environmental pollution.

The purpose of the present invention can be achieved through the following technical solutions:

A seed treatment composition containing dinotefuran, difenoconazole and penconazole, including active ingredients and auxiliary materials, the mass percentage of the active ingredients is 30-60%, and the rest is auxiliary materials;

The active ingredients include dinotefuran, difenoconazole and cconazole;

The mass ratio of dinotefuran, difenoconazole and cacconazole is 10-50:1-30:1-30.

As a further solution of the present invention: the mass ratio of dinotefuran, difenoconazole and cconazole is 20-40:10-20:10-20.

As a further solution of the present invention: the mass ratio of dinotefuran, difenoconazole and cloconazole is 30:15:15.

As a further solution of the present invention: the dosage form of the seed treatment composition is wettable powder, water dispersible granule, soluble powder, soluble granule, water, water emulsion.

As a further solution of the present invention: the auxiliary materials include sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate.

As a further solution of the present invention: the use of the seed treatment composition containing dinotefuran, difenoconazole and cconazole for peanut, rice and wheat seed treatment.

As a further solution of the present invention: the mass ratio of the seed treatment composition to the seeds when treating the seeds is 1:25.

As a further solution of the present invention: the seed treatment composition treats the seeds in the following manner:

Add the seed treatment composition to the seeds in proportion to the plastic bag, add water and then stir and mix evenly, so that the surface of the seeds is fully covered with the seed treatment composition, and then drain naturally.

Beneficial effects of the present invention:

A seed treatment composition containing dinotefuran, difenoconazole and cconazole of the present invention, through the rational compounding of dinotefuran, difenoconazole and cconazole, the prepared seed treatment The composition has the advantages of the three, can synergistically protect the seeds, can significantly improve the emergence rate of the seeds and the control effect of diseases and insect pests, not only avoids the generation of drug resistance caused by long-term single use, but also improves the protective effect on the seeds, and reduces Reduce the usage amount of medicament, reduce the pollution to the environment, in the present invention, by weighing dinotefuran, difenoconazole and bacconazole, mix uniformly, obtain active ingredient, by weighing sodium lauryl sulfate, wood Sodium sulfonate and light calcium carbonate are uniformly mixed to obtain auxiliary materials, and then the active ingredients and auxiliary materials are uniformly mixed, and then pulverized after uniform mixing to obtain a seed treatment composition in the form of a wettable powder. By mixing the seed treatment composition with rice Put the seeds into a plastic bag, add water, and quickly stir and mix well, so that the surface of the rice seeds is fully wrapped with the seed treatment composition, and then drained naturally, and finally the rice seeds wrapped with the seed treatment composition are planted, and dinotefuran is used to fully ensure the rice The seeds will not be attacked by underground pests. The use of difenoconazole and paconazole fully guarantees that the rice seeds will not be attacked by underground pathogens. The emergence rate of rice seeds after planting can reach more than 94%, and the 90d control effect can reach More than 92%.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1:

This embodiment is a preparation method of a seed treatment composition containing dinotefuran, difenoconazole and cconazole, comprising the following steps:

Step 1: Weigh dinotefuran, difenoconazole and cconazole according to the mass ratio of 10:1:1, mix them evenly, and obtain the active ingredients;

Step 2: Weigh sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate according to the mass ratio of 5:2:20, and mix them uniformly to obtain auxiliary materials;

Step 3: Weigh 30% of the active ingredient according to the mass percentage, make up 100% with the auxiliary material, then mix the active ingredient and the auxiliary material evenly, and grind until the fineness reaches 200 mesh after mixing evenly, so as to obtain the seed treatment composition in the form of wettable powder ;

Step 4: Add the seed treatment composition and rice seeds into a plastic bag at a mass ratio of 1:25, add water and quickly stir and mix evenly so that the surface of the rice seeds is fully covered with the seed treatment composition, and then drain naturally.

Example 2:

This embodiment is a preparation method of a seed treatment composition containing dinotefuran, difenoconazole and cconazole, comprising the following steps:

Step 1: Weigh dinotefuran, difenoconazole, and cconazole according to the mass ratio of 20:10:10, and mix them uniformly to obtain active ingredients;

Step 2: Weigh sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate according to the mass ratio of 6:3:22, and mix them uniformly to obtain auxiliary materials;

Step 3: Weigh 38% of the active ingredient according to the mass percentage, make up 100% with auxiliary materials, then mix the active ingredient and auxiliary materials evenly, and grind until the fineness reaches 220 mesh after mixing evenly, to obtain a seed treatment composition in the form of wettable powder ;

Step 4: Add the seed treatment composition and rice seeds into a plastic bag at a mass ratio of 1:25, add water and quickly stir and mix evenly so that the surface of the rice seeds is fully covered with the seed treatment composition, and then drain naturally.

Example 3:

This embodiment is a preparation method of a seed treatment composition containing dinotefuran, difenoconazole and cconazole, comprising the following steps:

Step 1: Weigh dinotefuran, difenoconazole, and cconazole according to the mass ratio of 30:15:15, and mix them uniformly to obtain active ingredients;

Step 2: Weigh sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate according to the mass ratio of 7.5:3:25, and mix them uniformly to obtain auxiliary materials;

Step 3: Weigh 45% of the active ingredient according to the mass percentage, make up 100% with the auxiliary material, then mix the active ingredient and the auxiliary material evenly, and grind until the fineness reaches 250 mesh after mixing evenly, so as to obtain the seed treatment composition in the form of wettable powder ;

Step 4: Add the seed treatment composition and rice seeds into a plastic bag at a mass ratio of 1:25, add water and quickly stir and mix evenly so that the surface of the rice seeds is fully covered with the seed treatment composition, and then drain naturally.

Example 4:

This embodiment is a preparation method of a seed treatment composition containing dinotefuran, difenoconazole and cconazole, comprising the following steps:

Step 1: Weigh dinotefuran, difenoconazole, and cconazole according to the mass ratio of 40:20:20, and mix them uniformly to obtain active ingredients;

Step 2: Weigh sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate according to the mass ratio of 9:4:28, and mix them uniformly to obtain auxiliary materials;

Step 3: Weigh 53% of the active ingredient according to the mass percentage, make up 100% with the auxiliary material, then mix the active ingredient and the auxiliary material evenly, and grind until the fineness reaches 280 mesh after mixing evenly, so as to obtain the seed treatment composition in the form of wettable powder ;

Step 4: Add the seed treatment composition and rice seeds into a plastic bag at a mass ratio of 1:25, add water and quickly stir and mix evenly so that the surface of the rice seeds is fully covered with the seed treatment composition, and then drain naturally.

Example 5:

This embodiment is a preparation method of a seed treatment composition containing dinotefuran, difenoconazole and cconazole, comprising the following steps:

Step 1: Weigh dinotefuran, difenoconazole, and cconazole according to the mass ratio of 50:30:30, and mix them uniformly to obtain active ingredients;

Step 2: Weigh sodium lauryl sulfate, sodium lignosulfonate, and light calcium carbonate according to the mass ratio of 10:5:30, and mix them uniformly to obtain auxiliary materials;

Step 3: Weigh 60% of the active ingredient according to the mass percentage, make up 100% with the auxiliary material, then mix the active ingredient and the auxiliary material evenly, and grind until the fineness reaches 300 mesh after mixing evenly, so as to obtain the seed treatment composition in the form of wettable powder ;

Step 4: Add the seed treatment composition and rice seeds into a plastic bag at a mass ratio of 1:25, add water and quickly stir and mix evenly so that the surface of the rice seeds is fully covered with the seed treatment composition, and then drain naturally.

Comparative example 1:

The difference between Comparative Example 1 and Example 5 is that dinotefuran is not added.

Comparative example 2:

The difference between Comparative Example 2 and Example 5 is that no difenoconazole was added.

Comparative example 3:

The difference between Comparative Example 3 and Example 5 is that no inconazole was added.

The corn seeds treated in Examples 1-5 and Comparative Examples 1-3 were subjected to a germination rate experiment, and 100 rice seeds were selected, sown evenly in a plastic seedling tray, covered with a thin layer of soil, and placed in a moist state After 5 days of indoor darkening treatment, move the seedlings outdoors to raise seedlings, replenish water in time during germination and emergence, and investigate the emergence of each sample on the 15th day after sowing.

Carry out field test with the processed corn seed in embodiment 1-5 and comparative example 1-3, the field block of test field is regular, and sandy loam, fertilizer and water are consistent, and paddy rice planting mode is machine-planting cultivation mode, and the amount of seed used is 60kg/ hm ² , set up 3 repeated plots for each sample, and each plot has an area of more than 120m ² , and each plot is separated by double mud ridges to prevent cross-flow of field water. Investigate each sample on the 90th and 120th day after sowing The effectiveness of disease and pest control.

The test results are shown in the table below:

sample 15d emergence rate, % 90d prevention effect, % 120d prevention effect, % Example 1 94.21 92.35 84.61 Example 2 95.68 95.47 91.88 Example 3 96.82 99.16 95.42 Example 4 96.10 97.98 93.30 Example 5 95.08 94.69 88.39 Comparative example 1 73.35 76.38 63.74 Comparative example 2 82.00 83.36 78.29 Comparative example 3 79.33 80.74 75.03

Referring to the data in the above table, according to the comparison of Examples 1-5 and Comparative Examples 1-3, it can be known that the seed treatment composition compounded by dinotefuran, difenoconazole and penconazole has the emergence rate of seeds and The control effect of diseases and insect pests can be effectively improved. When one of them is eliminated, the emergence rate and the control effect of diseases and insect pests are significantly reduced, which means that the compounded seed treatment composition of dinotefuran, difenoconazole and peconazole is effective on Seeds have the best protection effect, and the three cannot be removed or replaced.

In the description of this specification, descriptions referring to the terms "one embodiment", "example", "specific example" and the like mean that specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present invention. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above content is only an example and description of the present invention. Those skilled in the art will make various modifications or supplements to the described specific embodiments or replace them in similar ways, as long as they do not deviate from the invention or exceed the rights of the present invention. The scope defined in the claims should all belong to the protection scope of the present invention.

Claims (8)

1. The seed treatment composition containing dinotefuran, difenoconazole and ipconazole is characterized by comprising an effective component and auxiliary materials, wherein the mass percentage of the effective component is 30-60%, and the balance is the auxiliary materials;

the active ingredients comprise dinotefuran, difenoconazole and ipconazole;

the mass ratio of the dinotefuran to the difenoconazole to the ipconazole is 10-50:1-30:1-30.

2. The seed treatment composition containing dinotefuran, difenoconazole and ipconazole according to claim 1, wherein the mass ratio of dinotefuran, difenoconazole and ipconazole is 20-40:10-20:10-20.

3. The seed treatment composition containing dinotefuran, difenoconazole and ipconazole according to claim 1, wherein the mass ratio of dinotefuran, difenoconazole and ipconazole is 30:15:15.

4. the seed treatment composition containing dinotefuran, difenoconazole and ipconazole according to claim 1, wherein the seed treatment composition is in the form of wettable powder, water dispersible granule, soluble powder, soluble granule, water aqua or aqueous emulsion.

5. The seed treatment composition containing dinotefuran, difenoconazole and ipconazole according to claim 1, wherein said auxiliary materials comprise sodium dodecyl sulfate, sodium lignin sulfonate and light calcium carbonate.

6. Use of a seed treatment composition comprising dinotefuran, difenoconazole and ipconazole according to any one of claims 1-5 for peanut, rice, wheat seed treatment.

7. The use of a seed treatment composition containing dinotefuran, difenoconazole and ipconazole according to claim 6, wherein the mass ratio of seed treatment composition to seed is 1:25.

8. use of a seed treatment composition comprising dinotefuran, difenoconazole and ipconazole according to claim 6, wherein said seed treatment composition treats seeds in the following manner:

and (3) adding the seed treatment composition and the seeds into a plastic bag according to a proportion, adding clear water, stirring and mixing uniformly quickly to ensure that the surfaces of the seeds are fully wrapped with the seed treatment composition, and then naturally draining.