CN-121970773-A - Seed treatment agent and application thereof

CN121970773ACN 121970773 ACN121970773 ACN 121970773ACN-121970773-A

Abstract

The invention relates to the technical field of pesticides, and discloses a seed treatment agent and application thereof. The seed treatment agent comprises an active ingredient and an auxiliary agent, wherein the active ingredient comprises flonicamid, thiram and azoxystrobin. The invention also relates to application of the seed treatment agent in preventing and controlling diseases and insect pests of grain crops and oil crops. The seed treatment agent containing three active ingredients of flonicamid, thiram and azoxystrobin provided by the invention has the advantages of improving the stability of the product, being capable of tolerating high and low temperature intervals, simultaneously being high in product suspension rate, low in coating falling rate, good in seed treatment safety, capable of meeting the subsequent use of different countries and regions, and beneficial to large-scale popularization and application. The seed treatment agent provided by the invention has the advantages of simple preparation process and simple and convenient operation.

Inventors

LI HE
ZHANG XIAOBING
HU YISHAN
LI ZHIQING
WEI XIUGUO
MOU HONGHAI
YANG DAN

Assignees

青岛润农化工有限公司

Dates

Publication Date: 20260505
Application Date: 20260126

Claims (10)

1. A seed treatment agent, characterized in that the seed treatment agent comprises an active ingredient and an auxiliary agent; wherein the active ingredients comprise flonicamid, thiram and azoxystrobin.
2. The seed treatment of claim 1, wherein the seed treatment is a seed treatment suspension or a seed treatment dispersible powder; Preferably, the content of the active ingredient in the seed treatment is 10-80%, preferably 10-50%, or 15-60%, or 15-45%.
3. The seed treatment of claim 1 or 2, wherein the adjuvant comprises at least one of a dispersant, a wetting agent, and a film forming agent; preferably, the dispersant is selected from the group consisting of alkyl naphthalene sulfonate formaldehyde condensate, sodium lignin sulfonate, alkylphenol polyoxyethylene ether sulfate, alkylphenol polyoxyethylene ether phosphate, polycarboxylate, polyoxyethylene At least one of polyoxypropylene block copolymer, sodium alkylphenol sulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfonate and naphthalene sulfonic acid formaldehyde condensate sodium salt, preferably a combination of alkylphenol polyoxyethylene ether sulfate and polycarboxylate according to the mass ratio of 1:1-3 or a combination of naphthalene sulfonic acid formaldehyde condensate sodium salt and calcium lignosulfonate according to the mass ratio of 1:1-3; Preferably, the wetting agent is selected from at least one of ethylene oxide-propylene oxide block polyether, fatty alcohol polyoxyethylene ether sulfate, sodium dodecyl sulfate, sodium tetradecyl sulfate, sodium dodecyl benzene sulfonate, sodium alkyl naphthalene sulfonate, sodium alkylphenol polyoxyethylene ether sulfate and sodium lignin sulfonate, preferably ethylene oxide-propylene oxide block polyether or a combination of sodium dodecyl sulfate and sodium lignin sulfonate according to a mass ratio of 1:1-3; Preferably, the film forming agent is at least one selected from polyvinylpyrrolidone, polyvinyl alcohol, carboxymethyl cellulose, carboxypropyl methyl cellulose and sodium alginate, preferably polyvinylpyrrolidone.
4. The seed treatment of claim 3, wherein when the seed treatment is a seed treatment suspension, the adjuvant further comprises at least one of a thickener, an antifreeze, an antifoaming agent, a preservative, a pH adjuster, a warning color, and water.
5. The seed treatment agent according to claim 4, wherein the seed treatment suspending agent comprises, by weight, 10-50% of an active ingredient, 2-10% of a dispersing agent, 1-6% of a wetting agent, 0.5-6% of a film forming agent, 0.1-1% of a thickening agent, 1-10% of an antifreezing agent, 0.1-1% of a defoaming agent, 0.1-2% of a preservative, 0.1-1% of a pH regulator, 1-10% of a warning color, and 100% of water; Preferably, the seed treatment suspending agent comprises the following raw materials, by weight, 15-45% of active ingredients, 2-8% of dispersing agents, 1-4% of wetting agents, 1-4% of film forming agents, 0.5-1% of thickening agents, 1-8% of antifreezing agents, 0.1-0.5% of defoaming agents, 0.1-1% of preservatives, 0.1-0.5% of pH regulating agents, 1-8% of warning colors and 100% of water; preferably, the seed treatment suspending agent comprises the following raw materials, by weight, 39.5% of active ingredient, 5% of dispersing agent, 2% of wetting agent, 3% of film forming agent, 0.65% of thickening agent, 5% of antifreezing agent, 0.2% of defoaming agent, 0.4% of preservative, 0.17% of pH regulator, 6% of warning color and 100% of water.
6. Seed treatment according to claim 4 or 5, wherein the thickener is selected from at least one of magnesium aluminum silicate, xanthan gum and sodium carboxymethylcellulose, preferably from a combination of magnesium aluminum silicate and xanthan gum in a mass ratio of 1-3:1; preferably, the defoamer is selected from at least one of silicone oil, C 10 -C 20 saturated fatty acid compound and C 8 -C 10 fatty alcohol, preferably silicone oil; preferably, the antifreeze is selected from at least one of glycerol, ethylene glycol and propylene glycol, preferably propylene glycol; preferably, the preservative is selected from at least one of paraformaldehyde, pinus koraiensis and sodium p-hydroxybenzoate, preferably pinus koraiensis; Preferably, the pH regulator is at least one selected from potassium dihydrogen phosphate, citric acid, sodium citrate and potassium citrate, preferably citric acid; preferably, the warning colour is selected from at least one of acid scarlet and aqueous rose, preferably acid scarlet.
7. The seed treatment of claim 3 wherein, when the seed treatment is a seed treatment dispersible powder, the adjuvant further comprises at least one of an anti-caking agent, a warning color, and a filler.
8. The seed treatment agent according to claim 7, wherein the seed treatment dispersible powder comprises, by weight, 10-80% of an active ingredient, 4-10% of a dispersing agent, 1-6% of a wetting agent, 1-8% of a film forming agent, 1-8% of an anti-caking agent, 1-10% of a warning color, and 100% of a filler; Preferably, the seed treatment dispersible powder comprises the following raw materials, by weight, 15-60% of active ingredients, 4-8% of dispersing agents, 1-4% of wetting agents, 1-6% of film forming agents, 1-6% of anti-caking agents, 1-8% of warning colors and 100% of fillers; preferably, the seed treatment dispersible powder comprises the following raw materials, by weight, 41% of active ingredient, 4% of dispersing agent, 2.5% of wetting agent, 3% of film forming agent, 4% of anti-caking agent, 5% of warning color and 100% of filler.
9. Seed treatment according to claim 7 or 8, wherein the anti-caking agent is selected from at least one of white carbon, talc and bentonite, preferably white carbon; preferably, the warning color is at least one selected from the group consisting of acid scarlet, agricultural scarlet and aqueous rose, preferably agricultural scarlet; Preferably, the filler is selected from at least one of kaolin, diatomaceous earth and ammonium sulfate, preferably diatomaceous earth.
10. Use of a seed treatment according to any one of claims 1 to 9 for controlling pests of food and oil crops; preferably, the insect pest in the plant diseases and insect pests is at least one selected from aphids, thrips and plant hoppers; Preferably, the disease in the pest is selected from at least one of damping off, damping off and root rot.

Description

Seed treatment agent and application thereof Technical Field The invention relates to the technical field of pesticides, in particular to a seed treatment agent and application thereof. Background Flonicamid is a pyridine amide type insecticide found by japanese stone original company, which inhibits ingestion by inhibiting penetration of plant tissues by aphid needles. The flonicamid has good systemic property, strong permeation effect and long lasting period, and can be used for fruit trees, grains, potatoes, rice, cotton, vegetables, beans, melons, tea trees, sunflowers, greenhouse ornamental plants and the like to prevent piercing-sucking mouthpart pests. Azoxystrobin is a novel methoxy acrylic bactericide developed by the company Zhengda in the United kingdom. It has broad-spectrum control effect on diseases such as ascomycetes and basidiomycetes by inhibiting mitochondrial respiration to block germ energy synthesis. The azoxystrobin has triple effects of protection, treatment and eradication, can be used for stem and leaf treatment and seed treatment, can also be used for soil treatment, and is used for preventing and treating diseases of grains, rice, grapes, potatoes, vegetables, fruit trees, beans, other crops and the like. Thiram belongs to an organic sulfur bactericide and belongs to a broad-spectrum protective bactericide. Has wide application range and better control on downy mildew, epidemic disease, anthracnose, cereal smut and seedling-stage yellow spot of various crops. The thiram can be used for stem and leaf treatment and seed treatment, and can also be used for soil treatment. The seeds and seedlings of crops are easily damaged and infected by various pests and pathogenic bacteria on the ground and underground, the damage and infection are the weakest links in the growth process of the crops, the seeds and seedlings are infected by the pathogenic bacteria to generate the phenomena of disease seedlings and death seedlings, the effective plant number of the crops in unit area can be reduced, and the large-area yield reduction and quality reduction of the crops are caused. Common diseases and pests of field crops such as peanut, cotton, soybean, potato and the like include root rot, leaf spot, stem rot, damping off, aphid, grub, cutworm, flammulina velutipes and the like. The attack of the pests is often multiple, the time and the positions are inconsistent, the control difficulty is high, and the multiple application is usually required. At present, a compound composition of flonicamid, thiram and azoxystrobin is not found, and no report is found on seed treatment agents (such as seed treatment suspending agents and seed treatment dispersible powder) compounded by the three. The seed treating agent is a pesticide preparation prepared from active ingredients (pesticide, bactericide, plant growth regulator, trace elements and the like), film forming agent, wetting agent, dispersing agent and the like, and can coat a layer of firm film on the outer layer of the seed, so that the seed is provided with a protective layer, and the purposes of preventing and treating diseases and insect pests, improving germination rate, improving yield and the like are achieved. The seeding machine is used in the seeding stage, is simple to operate, can reduce the pesticide application cost and workload of farmers, and has good application prospect. At present, the combination of flonicamid, azoxystrobin, flonicamid, thiram and azoxystrobin is reported, but the ternary combination of flonicamid, azoxystrobin and thiram is not reported. In the aspect of dosage forms, no dosage forms such as ternary mixed seed treatment suspending agents, seed treatment dispersible powders and the like are reported. Disclosure of Invention The invention aims to overcome the problems in the prior art and provides a seed treatment agent and application thereof. The invention prepares the flonicamid, azoxystrobin and thiram as active ingredients into different types of seed treatment agent formulations, has convenient use, can ensure that crops in seedling stage are not damaged by aphids, thrips, plant hoppers, damping-off diseases, root rot and other diseases and insects, expands the prevention spectrum and slows down the generation of drug resistance. In order to achieve the above object, the first aspect of the present invention provides a seed treatment agent, wherein the seed treatment agent comprises an active ingredient and an auxiliary agent, wherein the active ingredient comprises flonicamid, thiram and azoxystrobin. In a second aspect, the invention provides the use of a seed treatment according to the first aspect for controlling pests of food and oil crops. Through the technical scheme, the beneficial technical effects obtained by the invention are as follows: The seed treatment agent containing three active ingredients of flonicamid, thiram and azoxystrobin provided by the invention has the advantages of improving the st