CN108041060B - Pesticide compound seed coating agent, application thereof and treatment method of corn seeds - Google Patents

Pesticide compound seed coating agent, application thereof and treatment method of corn seeds Download PDF

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CN108041060B
CN108041060B CN201810003863.2A CN201810003863A CN108041060B CN 108041060 B CN108041060 B CN 108041060B CN 201810003863 A CN201810003863 A CN 201810003863A CN 108041060 B CN108041060 B CN 108041060B
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seed coating
coating agent
corn
corn seeds
pesticide compound
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CN108041060A (en
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苏前富
孟玲敏
王巍巍
张伟
贾娇
李红
高月波
晋齐鸣
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Jilin Academy of Agricultural Sciences
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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
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
    • A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
    • A01C1/06—Coating or dressing seed
    • 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
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/02—Acyclic compounds
    • 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
    • A01N43/50—1,3-Diazoles; Hydrogenated 1,3-diazoles
    • 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
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647—Triazoles; Hydrogenated triazoles
    • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Soil Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

The invention relates to the technical field of crop pest control, in particular to a pesticide compound seed coating agent, the active ingredients of which comprise at least two of thiodicarb, imazalil, tebuconazole and triacontanol. The preparation method of the pesticide compound seed coating agent comprises the following steps of coating the corn seeds by adopting a plastic package method, wherein the mass ratio of the pesticide compound seed coating agent to the corn seeds is 1: 50 to 150. The invention relates to application of a pesticide compound seed coating agent in coating corn seeds. Two or more of thiodicarb, imazalil, tebuconazole and triacontanol are compounded, and the compound is coated with a seed coating agent to act on corn seeds, so that the corn disease and insect pest can be controlled in a targeted manner, and the growth performance of corn crops is improved.

Description

Pesticide compound seed coating agent, application thereof and treatment method of corn seeds
Technical Field
The invention relates to the technical field of crop pest control, in particular to a pesticide compound seed coating agent, application thereof and a treatment method of corn seeds.
Background
The planting area of the spring corns in the northeast is large, the occurrence of plant diseases and insect pests is relatively complex, in recent years, underground pests and local parts are serious, the tendency of the northeast spring corns to remove the corn dwarf disease is increased, and soil-borne diseases are common. Due to the suitable climate, the maize dwarfing disease, the maize root rot disease and the maize head smut disease are common diseases in northeast, and the incidence rate is equal to the loss rate. In recent years, drought and low temperature have evolved into rainy and low temperature sowing in spring, herbicide phytotoxicity, particularly phytotoxicity caused by excessive use of acetochlor, is easily caused, and the acetochlor phytotoxicity is particularly obvious on some corn varieties, so that a seed coating capable of effectively improving the growth performance of corn crops is lacked.
Disclosure of Invention
The first purpose of the invention is to provide a pesticide compound seed coating agent which can coat corn seeds, effectively prevent and control corn diseases and insect pests and improve the growth performance of corn crops.
The second purpose of the invention is to provide a method for treating corn seeds, which can effectively prevent and control corn diseases and insect pests so as to improve the growth performance of corn crops grown from the corn seeds.
The third purpose of the invention is to provide the application of the pesticide on the corn seed coating, which can effectively prevent and control corn diseases and insect pests so as to improve the growth performance of corn crops.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
The invention provides a pesticide compound seed coating agent, the active ingredients of which comprise at least two of thiodicarb, imazalil, tebuconazole and triacontanol.
The invention also relates to a corn seed treatment method, which comprises the steps of preparing the active ingredients into a seed coating agent, coating the corn seeds by adopting a plastic package method, wherein the mass ratio of the pesticide compound seed coating agent to the corn seeds is 1: 50 to 150.
The invention also relates to application of the pesticide compound seed coating agent in coating corn seeds.
Two or more of thiodicarb, imazalil, tebuconazole and triacontanol are combined to act on corn seeds, so that the soil-borne diseases and soil insects of corn can be effectively prevented and treated, and the growth performance of corn crops is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below. Those whose specific conditions are not specified in the embodiment or examples are carried out according to the conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The pesticide compound seed coating agent and the application thereof and the treatment method of corn seeds of the embodiment of the invention are specifically explained below.
The invention provides a pesticide compound seed coating agent, and the active ingredients of the pesticide compound seed coating agent comprise at least two of thiodicarb, imazalil, tebuconazole and triacontanol. For example, the active ingredient thereof includes thiodicarb and imazalil, or imazalil and tebuconazole, or tebuconazole and triacontanol, or the active ingredient thereof includes any three or four of thiodicarb, imazalil, tebuconazole and triacontanol.
The chemical name of thiodicarb is 3, 7, 9, 13 tetramethyl-5-11 dioxa-2, 8, 14-trithia-4, 7, 9, 12-tetraazapentadecane-3, 12-diene-6-10-dione. The inventor researches and discovers that the thiodicarb can effectively prevent and treat the maize dwarf disease (commonly called as kaffir lily seedlings and geriatric seedlings), has lower toxicity and better prevention and treatment effect compared with the existing benfuracarb, and can be well cooperated with other medicine components without influencing the performance of the thiodicarb.
Imazalil, also called dimethomorph, is a systemic fungicide and has a control effect on a plurality of fungal diseases affecting fruits, vegetables and ornamental plants. The inventor finds that after the imazalil is acted on corn seeds, the occurrence of root rot can be effectively reduced, and the growth performance of corn crops is further improved.
Tebuconazole is a triazole sterilization pesticide with high efficiency, broad spectrum and systemic property, has three functions of protection, treatment and eradication, has wide sterilization spectrum and long lasting period, can effectively prevent and treat the maize head smut and improve the growth performance of maize crops.
Triacontanol is a natural long carbon chain plant growth regulator, known as n-triacontanol, also known as melissol, and is a natural biological product purified and extracted from bee wax. Has no harm to human and livestock, no adverse side effect, and no environmental pollution. The herbicide such as acetochlor and the like is used in the northeast spring sowing in too large amount, the temperature difference between day and night in spring sowing is large, and the low temperature causes phytotoxicity to form abnormal seedlings. The inventor finds that triacontanol can effectively relieve acetochlor phytotoxicity and improve the growth performance of corn crops.
In addition, the four medicinal components of thiodicarb, imazalil, tebuconazole and triacontanol can be combined at will without influencing the respective medicinal properties, and can be coordinated and matched with each other, thereby achieving the optimal multifunctional control effect and improving the growth performance of corn crops to the maximum extent.
According to some embodiments of the invention, the active ingredients of the pesticide compound seed coating agent comprise thiodicarb, imazalil, tebuconazole and triacontanol. The pesticide compound seed coating agent contains the four active pharmaceutical ingredients, so that the pharmaceutical ingredients can be well cooperated, the corn dwarf disease, the corn head smut and the corn root rot can be effectively prevented and controlled, the herbicide hazard can be relieved, and other underground pests can be prevented and controlled at the same time.
According to certain embodiments of the invention, the pesticide compound seed coating agent comprises, by weight, 3-15% of thiodicarb, 2-6% of imazalil, 0.5-1% of tebuconazole, 0.005-0.01% of triacontanol and the balance of a solvent. The solvent may be water, or a combination of other adjuvants such as a film former and water. These solvents are conventional adjuvants for the preparation of seed coatings. Through the compounding, the composite pesticide which can effectively prevent and control the maize dwarf disease, the maize head smut and the maize root rot and relieve the phytotoxicity of the herbicide and simultaneously prevent and control other underground pests can be obtained, the pesticide effect can achieve the synergistic cooperation under the proportion, and the cost can be effectively controlled.
According to some embodiments, when the pesticide compound seed coating is mainly used for preventing and treating corn dwarf disease, the active ingredients comprise thiodicarb and at least one of imazalil, tebuconazole and triacontanol, for example, the active ingredients comprise thiodicarb and any one of imazalil, tebuconazole and triacontanol, or any two of imazalil, tebuconazole and triacontanol, and the active ingredients must comprise thiodicarb, and then the active ingredients with other functions are matched.
According to some embodiments, when the pesticide compound seed coating is mainly used for alleviating the phytotoxicity of corn herbicides, the active ingredients of the pesticide compound seed coating comprise triacontanol and at least one of thiodicarb, imazalil and tebuconazole, for example, the active ingredients of the pesticide compound seed coating comprise triacontanol and any one of imazalil, tebuconazole and thiodicarb, or comprise triacontanol and any two of imazalil, tebuconazole and thiodicarb, and the active ingredients of the pesticide compound seed coating must comprise triacontanol and then are matched with other functional active ingredients.
According to some embodiments, when the pesticide compound seed coating is mainly used for preventing and treating the maize head smut, the active ingredients comprise tebuconazole and at least one of imazalil, imazalil and triacontanol, for example, the active ingredients comprise tebuconazole and any one of imazalil, triacontanol and thiodicarb, or any two of imazalil, triacontanol and thiodicarb, and the active ingredients must comprise tebuconazole, and then the active ingredients are matched with other functional active ingredients.
According to some embodiments, when the pesticide compound seed coating is mainly used for preventing and treating corn root rot, the active ingredients of the pesticide compound seed coating comprise imazalil and at least one of tebuconazole, triacontanol and dotriacontanol, for example, the active ingredients of the pesticide compound seed coating comprise imazalil and any one of tebuconazole, triacontanol and dotriacontanol, or comprise imazalil and any two of tebuconazole, dotriacontanol and thiodicarb, and the active ingredients of the pesticide compound seed coating must comprise imazalil in combination with other functional active ingredients.
In some embodiments of the invention, the pesticide compound seed coating agent can be obtained by compounding various components.
Some embodiments of the invention also relate to a pesticide compound seed coating agent which comprises the active ingredient drug and the film-forming agent. The film forming agent can be selected from polyethylene glycol, sesbania gum, carboxymethyl sesbania gum, hydroxyethyl sesbania gum, 805 film forming agent, 851 film forming agent, 853 film forming agent, DISCO film forming agent and the like, and other film forming agents can also be selected. In some embodiments, the pesticide compound seed coating agent can also contain other auxiliary agents such as a preservative, a growth hormone, a suspending agent or a wetting agent.
In some embodiments of the invention, the pesticide compound seed coating agent is obtained by mixing the active ingredient and other auxiliary agents such as a film-forming agent.
Some embodiments of the invention also relate to a corn seed treatment method, which comprises the step of coating the corn seeds with the pesticide compound seed coating agent by adopting a plastic package method, wherein the mass ratio of the pesticide compound seed coating agent to the corn seeds is 1: 50 to 150. The plastic package method is to put the pesticide compound seed coating agent into a plastic package bag and put the seed into the plastic package bag, and to fully shake and uniformly mix the seed and the pesticide compound seed coating agent, so that the pesticide compound seed coating agent can be fully attached to the surface of the seed, and a better control effect can be achieved.
The content of each active component in the specific coating is as follows: 0.06-0.3g thiodicarb, 0.04-0.12g imazalil, 0.01-0.02g tebuconazole and 0.0001-0.0002g triacontanol are required for every 100g corn seeds.
Some embodiments of the invention also relate to the application of the pesticide compound seed coating agent on the coating of corn seeds. The seed coating agent can be used for treating corn seeds in a manner of soaking or spraying the seed coating agent on the surfaces of the seeds, so as to achieve the purpose of improving the growth performance of corn crops.
The corn to be implemented by the invention is germplasm resources such as common corn, sweet and waxy fresh-eating corn and other inbred lines, and does not relate to other crops.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.06g, triacontanol 0.0001g, tebuconazole 0.01g and imazalil 0.04g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the ratio of the seed coating agent 1: 50 mass ratio for coating.
Example 2
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.3g, triacontanol 0.0002g, tebuconazole 0.02g and imazalil 0.12g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds according to the ratio of 1: coating is carried out according to the mass ratio of 100 medicines.
Example 3
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.12g, triacontanol 0.0002g, tebuconazole 0.02g and imazalil 0.08g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds according to the ratio of 1: coating is carried out according to the mass ratio of 75 medicine species.
Example 4
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.24g, triacontanol 0.00015g, tebuconazole 0.015g and imazalil 0.10g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the ratio of 1: coating 50 medicines according to the mass ratio.
Example 5
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.08g, triacontanol 0.00018g, tebuconazole 0.012g and imazalil 0.06g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds according to the ratio of 1: coating is carried out according to the mass ratio of 60 medicines.
Example 6
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.0002g of triacontanol serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating is carried out according to the mass ratio of 80 medicines.
Example 7
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.02g of tebuconazole serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating is carried out according to the mass ratio of 100 medicines.
Example 8
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.08g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating 70 kinds of medicines according to the mass ratio.
Example 9
Every 100g of corn seeds are mixed with active ingredients of thiodicarb 0.12g, triacontanol 0.0002g and tebuconazole 0.02g to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds according to the ratio of 1: coating 50 medicines according to the mass ratio.
Example 10
Every 100g of corn seeds are mixed with 0.00015g of triacontanol, 0.015g of tebuconazole and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: 50 mass ratio for coating.
Example 11
Every 100g of corn seeds are mixed with 0.24g of thiodicarb, 0.015g of tebuconazole and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating 50 medicines according to the mass ratio.
Example 12
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating 50 medicines according to the mass ratio.
Example 13
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating 70 kinds of medicines according to the mass ratio.
Example 14
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating is carried out according to the mass ratio of 100 medicines.
Example 15
Every 100g of corn seeds are mixed with 0.12g of thiodicarb and 0.10g of imazalil serving as active ingredients to prepare a suspension seed coating agent, and the suspension seed coating agent is mixed with the corn seeds before sowing according to the weight ratio of 1: coating is carried out according to the mass ratio of 150 medicines.
Test example 1
Test for preventing and treating maize dwarf disease
Corn seeds obtained after coating in examples 12-15 were planted at the test site.
The test field is set in Mongolian Tungcun of Guangming county of ChangLin province, and is a year-round relatively heavy plot compared with variety, and is used for continuous cropping corn. The area of the test cell is 40m2The corn seed treatment of each example was repeated 3 times and the experiment was blanked, i.e., corn seeds that were not coated.
The results of a complete disease survey of maize dwarf disease in maize crops during growth are shown in table 1.
TABLE 1
Figure BDA0001537945190000081
As can be seen from table 1, the seed ratio was 1:150 coating, the incidence of maize dwarf disease was less than 8%, the seed ratio was 1: 100 coating, the corn dwarf disease incidence rate is 5.64 percent, and the ratio of the seeds is 1: the corn dwarf disease can be effectively prevented and treated within the coating proportion range of 50-150.
The corn seeds coated in example 1 were subjected to a planting test, a blank control group was set, and a corn dwarf disease complete manifestation was investigated and compared with a seedling shortage rate, and the results are shown in table 2.
TABLE 2
Figure BDA0001537945190000091
As can be seen from Table 2, the compounding of the four agents in example 1 can still effectively control corn dwarf disease, and field tests do not affect seedling emergence and do not find phytotoxic plants.
Test example two
Test for alleviating acetochlor phytotoxicity
The corn seeds obtained in example 2 and corn seeds without coating treatment were tested separately, and 3 pots of coated corn seeds and untreated corn seeds were treated separately, 5 plants per pot, without using acetochlor as a blank control. The experiment was repeated 3 times, and acetochlor was classified as a: normal dose (2250 ml/ha), B: 1.5 times (3300 ml/hectare), C: 2 times (4500 ml/ha). The initial temperature is set to 6 ℃, the treatment is carried out for 5 days, then the treatment is carried out for 7 days at 15 ℃, then the treatment is carried out for 20 ℃, the constant temperature treatment is carried out, the hazard rates of different treatments are investigated after 10 days, and the test site is Jilin, Yongwuling city. The test results are shown in table 3.
TABLE 3
Figure BDA0001537945190000092
Figure BDA0001537945190000101
As can be seen from Table 3, the aberration rate increases with the increase of the acetochlor dosage concentration, but the acetochlor phytotoxicity rate of the corn seeds treated by the seed coating agent in the embodiment is obviously reduced, which indicates that the compounded pesticide compound seed coating agent can effectively relieve the acetochlor phytotoxicity.
Test example three
Test for preventing and treating maize head smut
The corn seeds obtained after coating in example 2 were subjected to a planting test, and the test field was set in a test field of agricultural academy of sciences of Jilin, princess Ling, Jilin, and 0.1% of fungal soil was covered for inoculation. The area of the test cell is 40m2The test is repeated for 3 times, blank control is set in the test, seeding is carried out in the initial stage of 4 months, and the investigation is carried out when the maize head smut is completely manifested in the growth process. The test results are shown in table 4.
TABLE 4
Figure BDA0001537945190000102
As can be seen from Table 4, the corn seed coated with the pesticide compound seed coating agent in the embodiment 2 still has the effect of preventing and treating the corn head smut of over 94 percent, and meets the requirement of efficiently preventing and treating the corn head smut.
Test example four
Test for preventing and treating corn root rot
The corn seeds obtained after coating in example 2 were subjected to a planting test, and the test field was experimentally established in the test field of agricultural science institute of Guilin, princess Ling, Jilin, and artificially inoculated with a culture of Fusarium sorghum. The area of the test cell is 40m2And 3 times of repeated tests are carried out, blank controls are set in the tests, initial sowing is carried out in 4 late ten days, and seedlings are dug to investigate the incidence rate of the root rot at the 6-leaf stage. The test results are shown in table 5.
TABLE 5
Figure BDA0001537945190000111
As can be seen from Table 5, the corn seed coated with the pesticide compound seed coating agent in example 2 has an effect of preventing and treating corn root rot of 73.46%, and also achieves an ideal prevention and treatment effect.
In conclusion, the thiodicarb pesticide in the embodiment of the invention mainly prevents and treats the maize dwarf disease, and the triacontanol component can effectively relieve the phytotoxicity of the herbicide and reduce the incidence rate of abnormal seedlings. Imazalil can effectively reduce the occurrence of root rot, and triadimenol is an effective prevention and control agent for head smut. The pesticide compound seed coating agent combining the thiodicarb, the triacontanol, the imazalil and the tebuconazole can mix two or more kinds of agents aiming at the problem of prominent plant diseases and insect pests in the corn production in different areas in the northeast, is suitable for being converted into products to be popularized, and has wide application prospect.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the 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.

Claims (4)

1. The compound pesticide seed coating is characterized in that active ingredients of the compound pesticide seed coating comprise 3-15% of thiodicarb, 2-10% of imazalil, 0.5-1% of tebuconazole and 0.005-0.01% of triacontanol, and the balance is a solvent.
2. The corn seed treatment method is characterized by comprising the step of coating the corn seed with the pesticide compound seed coating agent according to claim 1, wherein the mass ratio of the pesticide compound seed coating agent to the corn seed is 1: 50 to 150.
3. The method for processing corn seeds as claimed in claim 2, wherein the corn seeds are coated by plastic packaging method one day before sowing.
4. The application of the pesticide compound seed coating agent of claim 1 in coating corn seeds.
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