CN115968901A - Formula and application of fruit tree seedling coating agent - Google Patents
Formula and application of fruit tree seedling coating agent Download PDFInfo
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- CN115968901A CN115968901A CN202211539515.XA CN202211539515A CN115968901A CN 115968901 A CN115968901 A CN 115968901A CN 202211539515 A CN202211539515 A CN 202211539515A CN 115968901 A CN115968901 A CN 115968901A
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- coating agent
- fruit tree
- thiamethoxam
- carbendazim
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- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- 235000013399 edible fruits Nutrition 0.000 title claims abstract description 35
- 241000220225 Malus Species 0.000 claims abstract description 37
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 229930192334 Auxin Natural products 0.000 claims abstract description 12
- 239000002363 auxin Substances 0.000 claims abstract description 12
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920006295 polythiol Polymers 0.000 claims abstract description 12
- TWFZGCMQGLPBSX-UHFFFAOYSA-N Carbendazim Natural products C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 claims description 56
- 239000006013 carbendazim Substances 0.000 claims description 32
- 239000005941 Thiamethoxam Substances 0.000 claims description 30
- 239000003973 paint Substances 0.000 claims description 30
- NWWZPOKUUAIXIW-FLIBITNWSA-N thiamethoxam Chemical compound [O-][N+](=O)\N=C/1N(C)COCN\1CC1=CN=C(Cl)S1 NWWZPOKUUAIXIW-FLIBITNWSA-N 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 21
- 238000009472 formulation Methods 0.000 claims description 20
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000005869 Pyraclostrobin Substances 0.000 claims description 16
- HZRSNVGNWUDEFX-UHFFFAOYSA-N pyraclostrobin Chemical compound COC(=O)N(OC)C1=CC=CC=C1COC1=NN(C=2C=CC(Cl)=CC=2)C=C1 HZRSNVGNWUDEFX-UHFFFAOYSA-N 0.000 claims description 16
- 239000005931 Spirotetramat Substances 0.000 claims description 15
- 239000005760 Difenoconazole Substances 0.000 claims description 13
- BQYJATMQXGBDHF-UHFFFAOYSA-N difenoconazole Chemical compound O1C(C)COC1(C=1C(=CC(OC=2C=CC(Cl)=CC=2)=CC=1)Cl)CN1N=CN=C1 BQYJATMQXGBDHF-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 claims description 12
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 12
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 12
- CLSVJBIHYWPGQY-GGYDESQDSA-N spirotetramat Chemical compound CCOC(=O)OC1=C(C=2C(=CC=C(C)C=2)C)C(=O)N[C@@]11CC[C@H](OC)CC1 CLSVJBIHYWPGQY-GGYDESQDSA-N 0.000 claims description 12
- 239000004563 wettable powder Substances 0.000 claims description 12
- 239000008187 granular material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
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- 239000000839 emulsion Substances 0.000 claims description 10
- SXSGXWCSHSVPGB-UHFFFAOYSA-N fluxapyroxad Chemical compound FC(F)C1=NN(C)C=C1C(=O)NC1=CC=CC=C1C1=CC(F)=C(F)C(F)=C1 SXSGXWCSHSVPGB-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
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- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- 239000000375 suspending agent Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- -1 ethyl spirotetramat Chemical compound 0.000 claims description 4
- RFHAOTPXVQNOHP-UHFFFAOYSA-N fluconazole Chemical compound C1=NC=NN1CC(C=1C(=CC(F)=CC=1)F)(O)CN1C=NC=N1 RFHAOTPXVQNOHP-UHFFFAOYSA-N 0.000 claims description 3
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- WCXDHFDTOYPNIE-RIYZIHGNSA-N (E)-acetamiprid Chemical compound N#C/N=C(\C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-RIYZIHGNSA-N 0.000 description 1
- JWUCHKBSVLQQCO-UHFFFAOYSA-N 1-(2-fluorophenyl)-1-(4-fluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanol Chemical compound C=1C=C(F)C=CC=1C(C=1C(=CC=CC=1)F)(O)CN1C=NC=N1 JWUCHKBSVLQQCO-UHFFFAOYSA-N 0.000 description 1
- IBSREHMXUMOFBB-JFUDTMANSA-N 5u8924t11h Chemical compound O1[C@@H](C)[C@H](O)[C@@H](OC)C[C@@H]1O[C@@H]1[C@@H](OC)C[C@H](O[C@@H]2C(=C/C[C@@H]3C[C@@H](C[C@@]4(O3)C=C[C@H](C)[C@@H](C(C)C)O4)OC(=O)[C@@H]3C=C(C)[C@@H](O)[C@H]4OC\C([C@@]34O)=C/C=C/[C@@H]2C)/C)O[C@H]1C.C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 IBSREHMXUMOFBB-JFUDTMANSA-N 0.000 description 1
- 239000005660 Abamectin Substances 0.000 description 1
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- 241000273311 Aphis spiraecola Species 0.000 description 1
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- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- 229930182692 Strobilurin Natural products 0.000 description 1
- JNVCSEDACVAATK-UHFFFAOYSA-L [Ca+2].[S-]SSS[S-] Chemical compound [Ca+2].[S-]SSS[S-] JNVCSEDACVAATK-UHFFFAOYSA-L 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
- OWZREIFADZCYQD-NSHGMRRFSA-N deltamethrin Chemical compound CC1(C)[C@@H](C=C(Br)Br)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 OWZREIFADZCYQD-NSHGMRRFSA-N 0.000 description 1
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- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
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- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a formula and application of a fruit tree seedling coating agent, relates to the technical field of fruit tree coating, and comprises a polythiol formula, an auxin formula and a six-component formula. The invention provides a formula and an application of a fruit tree seedling coating agent, the formula of the preparation can be used for treating newly planted apple seedlings, can protect the newly planted apple seedlings from or less suffering from invasion and damage of various plant diseases and insect pests in the first growing season, ensures that the seedlings spend a dangerous period, and has the characteristics of scientific and reasonable formula, convenience in fruit tree application, good effect of preventing and controlling the plant diseases and insect pests, long protection time and safety to the apple seedlings.
Description
Technical Field
The invention relates to a fruit tree seedling coating agent, in particular to a formula and application of the fruit tree seedling coating agent.
Background
In northern apple production areas in China, apple tree rot and ring rot are main branch diseases, infected fruit trees have symptoms of bark rot, trunk bulge, withered branches and the like, the yield and quality of apples are seriously affected, and the income level of practitioners is reduced. The germs of the ring rot and the rot of the apple trees are weak parasitic germs, have the characteristic of latent infection, and need to be prevented and controlled by taking medicines as soon as possible and continuously. At present, the method of spraying or coating a bactericide on the apple tree branch is mostly adopted for preventing and treating the apple tree branch diseases, and the commonly used bactericide types comprise triazoles, strobilurins, benzimidazoles and the like.
In the growth process of apple seedlings, aphids are important factors influencing growth safety of the apple seedlings, and the aphids harmful to apple trees mainly comprise yellow aphids, oncoaphis, woolly aphids and the like. The piercing-sucking mouthparts of aphids can suck a large amount of juice from plants, so that the plants are short and small, leaf surfaces are curled, flower buds cannot open normally, and the plants are premature senility. Besides damaging branches and leaves of the fruit trees, aphids can also damage fruits, pollute the surfaces of the fruits and seriously affect the yield and the quality of the apples. The main prevention and cure means at present are chemical prevention and cure, and the medicaments comprise imidacloprid, thiamethoxam, deltamethrin, acetamiprid, abamectin and the like.
The seed coating agent is a new compound pesticide preparation prepared by processing an insecticide, a bactericide, a plant growth regulator and the like serving as active ingredients and a film-forming agent, an antifreeze agent, a preservative and the like serving as auxiliary ingredients. The seed coating agent can absorb water to swell after the seeds are sowed, releases the medicament at the root along with the germination of the seeds, and conducts to the overground part along with the growth of the seedlings to continuously exert the effect. Compared with foliar spraying, the seed coating agent has longer lasting period for preventing and controlling diseases and pests, and smaller contact area between the original medicine components and the soil, so that the application times and the total dosage are reduced, and the degree of environmental pollution and the risk to non-target organisms are reduced. At present, the utilization rate of pesticides in China is relatively low (< 40%), so that the problems of overproof pesticide residues, crop phytotoxicity, environmental pollution and the like are caused, and the research and the application of seed coating agents are important ways for solving the problems.
Because the growing season of the apple tree seedlings after planting coincides with the time of infection of the apple branch diseases, continuous medicine application is needed for preventing or treating the diseases, and the problems of pesticide residue toxicity, environmental pollution and the like caused by frequent medicine application also exist. To effectively solve or alleviate this problem, it is necessary to reduce the number of administration times and improve the utilization rate of the medicament by improving the administration technology. Therefore, the seed coating agent is used as a reference, a proper pesticide component and a matrix are selected to prepare the special coating agent for the fruit tree seedlings, and the seedling coating method is adopted to prevent and control the plant diseases and insect pests of the apple trees in the seedling stage.
At present, no obvious common coating agent is available for preventing and treating diseases and insect pests of fruit tree seedlings, and the most commonly used prevention and treatment measures are spraying and coating chemical pesticides, so that the damage caused by apple rot germs, ring rot germs, aphids and the like can be quickly and effectively solved or relieved, but the resistance to drugs is easy to generate, so that the prevention and treatment difficulty is increased, and the pesticide residues exceed the standard, the farmland environment is polluted, and negative effects are caused.
Disclosure of Invention
The invention aims to provide a formula and an application of a fruit tree seedling coating agent, and aims to solve the problems of prevention and control of plant diseases and insect pests of newly planted seedlings, reduction of growth safety risks of the newly planted seedlings and reduction of orchard economic losses caused by the diseases and insect pests of the seedlings in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the formula and the application of the fruit tree seedling coating agent comprise a polythiol formula, an auxin formula and a six-component formula, wherein the specific material proportion of each formula is as follows:
polythiol formulations: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate and 1g of thiamethoxam;
the formula of the auxin comprises the following components: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate, 1g of thiamethoxam, 0.0001g of 28-epibrassinolide and 0.00125g of naphthylacetic acid;
the six-component formula comprises: 500mL of water, 500mL of Nippon emulsion paint, 50g of carbendazim, 12.5g of pyraclostrobin, 5g of difenoconazole, 10g of fluxapyroxad hydroxylamine, 10g of thiamethoxam and 8.96g of spirotetramat.
As a preferred technical scheme, the 5g of carbendazim adopts 10g of 50% carbendazim wettable powder, the 1g of thiamethoxam adopts 10g of 10% thiamethoxam granules, the 0.0001g of 28-epibrassinolide adopts 0.01mL of 0.01% 28-epibrassinolide emulsifiable solution, the 0.00125g of naphthylacetic acid adopts 5% naphthylacetic acid aqua, the 50g of carbendazim adopts 100g of 50% carbendazim wettable powder, the 12.5g of pyraclostrobin adopts 50mL of 25% pyraclostrobin emulsifiable solution, the 5g of difenoconazole adopts 50g of 10% difenoconazole, the 10g of fluxapyroxad hydroxylamine adopts 40mL of 250g/L fluxapyroxad suspending agent, the 10g of thiamethoxam adopts 40g of 25% and the 10g of 4.96% spirotetramat suspending agent adopts 4.96 mL of ethyl spirotetramat.
Preferably, the preparation method of the fruit tree seedling coating agent comprises the following steps: 500mL of clear water and 500mL of Nippon paint are put into a measuring cylinder, 10g of 50% carbendazim wettable powder, 2g of copper sulfate and 10g of 10% thiamethoxam granules are sequentially added into the measuring cylinder, and then a stirring rod is adopted to stir in the measuring cylinder until all the components are dissolved to obtain the polythiol formula.
Preferably, the preparation method of the fruit tree seedling coating agent comprises the following steps: 500mL of clear water and 500mL of Nippon paint are put into a 5L measuring cylinder, 10g of 50% carbendazim wettable powder, 2g of copper sulfate, 10g of 10% thiamethoxam granules, 0.01mL of 0.01% 28-epibrassinolide emulsifiable solution and 0.025mL of 5% naphthylacetic acid aqueous solution are sequentially added into the measuring cylinder, and then a stirring rod is adopted to stir the materials in the measuring cylinder until the materials are completely dissolved to obtain the auxin formula.
Preferably, the preparation method of the fruit tree seedling coating agent comprises the following steps: putting 500mL of clear water and 500mL of Nippon paint into a 5L measuring cylinder, sequentially adding 100g of 50% carbendazim wettable powder, 50mL of 25% pyraclostrobin missible oil, 40mL of 250g/L fluconazole hydroxylamine suspending agent, 50g of 10% difenoconazole, 4025% thiamethoxam granules and 40mL of 22.4% spirotetramat suspending agent into the measuring cylinder, and stirring and uniformly dissolving the materials in the measuring cylinder by using a stirring rod to obtain the six-component formula.
Preferably, the measuring cylinder has a capacity of 5L, and the stirring rod is made of glass.
Preferably, the application method of the fruit tree seedling coating agent comprises the following steps:
(1) The soaking method comprises the following steps: putting the coating agent into an iron bucket, putting the whole apple seedlings into the iron bucket, soaking for 30min, coating the whole apple seedlings, and planting the apple seedlings after the coating agent is solidified;
(2) The smearing method comprises the following steps: putting the coating agent into an iron bucket, uniformly coating the coating agent on the main branches of the apple seedlings with a brush, wherein the thickness of the coating agent is about 2 mm, and planting the apple seedlings after the coating agent is solidified.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a formulation and application of fruit tree seedling coating agent, the formulation of the agent can be used for processing newly planted apple seedlings, not only can protect the newly planted seedlings from being damaged or less by various plant diseases and insect pests in the first growing season, but also can ensure that the seedlings spend a dangerous period, and protect the seedlings from being attacked and damaged by diseases and insect pests for a long time.
Drawings
FIG. 1 is a schematic diagram showing the inhibitory effect of different combinations of agents of the present invention on the hypha growth of apple ring rot (A, B) and apple rot (C, D);
FIG. 2 is a schematic diagram showing the eradication effect of different combinations of agents and substrates according to the present invention on apple ring rot (A, B) and apple rot (C, D);
FIG. 3 is a diagram showing the dynamic content of the effective components in the skin layer after the whole plant of the formulation is coated;
FIG. 4 is a dynamic graph showing the content of active ingredients in a tip blade after coating of the whole plant of the formulation of the present invention;
FIG. 5 is a schematic diagram showing the influence of 3 formulations of the present invention on the number of terminal shoots and germination rate of Fuji apple seedlings;
FIG. 6 is a schematic diagram showing the influence of 3 formulations of the present invention on the amount and rate of leaf expansion of Fuji apple seedlings at their tips;
FIG. 7 is a schematic representation of apple aphid development after treatment with 3 formulations of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1 to 7, the present invention provides a technical solution: the formula and the application of the fruit tree seedling coating agent comprise a polythiol formula, an auxin formula and a six-component formula, wherein the specific material proportion of each formula is as follows:
polythiol formulations: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate and 1g of thiamethoxam;
the formula of the auxin comprises the following components: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate, 1g of thiamethoxam, 0.0001g of 28-epibrassinolide and 0.00125g of naphthylacetic acid;
the six-component formula comprises: 500mL of water, 500mL of Nippon emulsion paint, 50g of carbendazim, 12.5g of pyraclostrobin, 5g of difenoconazole, 10g of fluxapyroxad hydroxylamine, 10g of thiamethoxam and 8.96g of spirotetramat;
5g of carbendazim, 1g of thiamethoxam, 10g of 10% of thiamethoxam granules, 0.0001g of 28-epibrassinolide, 0.01mL of 0.01% of 28-brassinolide emulsifiable concentrate, 0.00125g of naphthylacetic acid, 5% of naphthylacetic acid aqueous solution, 100g of carbendazim, 50% of flutriafol, 12.5g of pyraclostrobin, 50mL of 25% of pyraclostrobin emulsifiable concentrate, 5g of difenoconazole, 50g of 10% of difenoconazole, 10g of 250g/L of fluxapyroxad hydroxylamine, 10g of 40g of 25% of thiamethoxam, 8.96g of spirotetramat, 22.4% of spirotetramat 40mL of spirotetramat;
the preparation method of the formula of the fruit tree seedling coating agent comprises the following steps:
polythiol formulations: putting 500mL of clear water and 500mL of Nippon paint into a 5L measuring cylinder, sequentially adding 10g of 50% carbendazim wettable powder, 2g of copper sulfate and 10g of 10% thiamethoxam granules into the measuring cylinder, and stirring the materials in the measuring cylinder by using a glass stirring rod until the materials are completely dissolved;
the formula of the auxin comprises the following components: putting 500mL of clear water and 500mL of Nippon paint into a 5L measuring cylinder, sequentially adding 10g of 50% carbendazim wettable powder, 2g of copper sulfate, 10g of 10% thiamethoxam granules, 0.01mL of 0.01% 28-epibrassinolide missible oil and 0.025mL of 5% naphthylacetic acid aqueous solution into the measuring cylinder, and stirring by using a glass stirring rod until all the materials are dissolved;
six-component formula; putting 500mL of clear water and 500mL of Nippon paint into a 5L measuring cylinder, sequentially adding 100g of 50% carbendazim wettable powder, 50mL of 25% pyraclostrobin missible oil, 40mL of 250g/L fluconazole hydroxylamine suspension, 50g of 10% difenoconazole, 40g of 25% thiamethoxam granules and 40mL of 22.4% spirotetramat suspension into the measuring cylinder, and stirring by using a glass stirring rod until all components are dissolved in the measuring cylinder;
the application method of the formula of the fruit tree seedling coating agent comprises the following steps:
(1) The soaking method comprises the following steps: putting the coating agent into an iron bucket, putting the whole apple seedlings into the iron bucket, soaking for 30min, coating the whole apple seedlings, and planting the apple seedlings after the coating agent is solidified;
(2) The smearing method comprises the following steps: putting the coating agent into an iron bucket, uniformly coating the branches and the trunks of the apple seedlings with a brush, wherein the thickness is about 2 mm, and planting the apple seedlings after the coating agent is solidified.
The sterilization effect of the formula components is as follows:
(1) The inhibition effect of the formula components on apple ring rot and apple rot hypha is determined through an in-dish bacteriostasis test, and the result is shown in figure 1, wherein A and C in figure 1: pyraclostrobin (E); B. d: carbendazim; s: is clear water; SKs: three-tree latex paint; skLz: three trees and beautiful piles; lb: nippon latex paint; lbLz: nippon latex paint and beautiful piles; yj: yoyo latex paint; yjLz: yoyo latex paint and beautiful piles; and Lz: pile making; hr: huarun latex paint; hrLz: huarun emulsion paint + Liangzhu. FIG. 1 shows that the Nippon latex paint has good film forming capability and water retention capability, and has good synergistic effect on pyraclostrobin and carbendazim which are common bactericides for orchards. Therefore, nippon latex paint was selected as the substrate for the paint dry formulation;
(2) The eradication effect of the formulation components on two apple pathogens colonized on the branches was determined by the in vitro inoculation method, and the results are shown in fig. 2. In fig. 2, a, C: non-wound inoculation; B. d: wound inoculation; beS: water + bordeaux mixture; SL: water + lime sulphur; lb: nippon latex paint; djS: water + carbendazim; bzS: water + pyraclostrobin; and (4) BmS: water + difenoconazole; fzS: water + fluxapyroxad; CK: and (3) water. FIG. 2 shows that carbendazim after mixing latex paint has a high eradicating effect on both pathogenic fungi; the fluxapyroxad has good eradicating effect on directly inoculated ring spot germs and wound-caused inoculated rotten germs.
The internal absorption and conduction capacities of the formula components are as follows:
the internal absorption and conduction activities and the retention period of the coating formula components in the young apple seedlings under the whole plant coating application condition are researched by adopting an ultra-high performance liquid chromatography-tandem mass spectrometry method, and the results are shown in fig. 3 and 4. It is shown by figures 3, 4: (1) After the whole plant is coated, 6 pesticide components can be absorbed by the nursery stock and enter cortex tissues, wherein the contents of thiamethoxam, spirotetramat and carbendazim are higher, the average contents respectively can reach 96.35, 12.36 and 13.25mg/kg at most, and can be maintained for a long time (90 days), and the high-dose continuous existence of each medicament in the cortex can effectively prevent and control the diseases of branches and trunks such as ring rot, rot and the like and related pests; (2) After the coating treatment, 6 pesticide components can be upwards conducted to the leaves at the tip end, wherein the pyraclostrobin, the carbendazim and the thiamethoxam can maintain a certain content level (1.03-13.16 mg/kg) within 30 days, and the pesticide has the capability of resisting the invasion of aphids, apple ring rot germs and rotten germs.
The formula has the following field application effects:
the apple seedlings are treated by the seedling coating agent, the growth condition of the apple tree seedlings after planting and the occurrence condition of aphids are observed, the influence of coating treatment on the growth of the apple tree seedlings and the prevention and control effect of the aphids are investigated, and the results are shown in tables 1 and 2 and figures 5-7:
TABLE 1 growth of seedlings of different varieties after application of the formula
Table 2 survival rates after treatment with the three formulations
In fig. 5 a: the number of terminal shoots that germinate; b: shoot sprouting rate, a in fig. 6: the number of tip and leaf is expanded; b: the tip leaf expansion rate is shown. The survival rate of seedlings after applying the six-component formula can be obtained by the table 1, 2 and the figures 5-7 to reach 100%; after the polythiol formula is applied, the survival rate of seedlings reaches 98 percent; after the auxin formula is applied, the survival rate of the seedlings reaches 98 percent; the three formulations had less effect on seedling survival. After the 3 formulas are applied, the top shoot and bud spitting time of various fruit tree seedlings is averagely delayed for 5-10 days compared with a control group. In early spring, the temperature is suddenly reduced due to the invasion of cold tide in the seedling planting season of fruit trees, the low temperature can last for more than ten days, the formula can postpone the germination of the fruit tree sprouts, and the influence from late spring coldness is reduced.
The formula also influences the top shoot germination number and the germination rate at the early stage of seedling germination, but the difference between the top shoot germination rate of the coating treatment and the top shoot germination rate of the control group becomes smaller as the time is prolonged until the top shoot germination rate is eliminated. The 3 formulations also affected the number of leaves spread and the leaf spread rate of fuji seedlings, the control had an average of 6.8 at 7 days after the start of leaf spreading, while the 3 treatments of the formulation were all 0, but at 28 days the number of leaves spread by the coating treatment exceeded the control, and the leaf spread rate of the polythio formulation also exceeded the control.
The formulation evaluation is carried out on the occurrence condition of Fuji seedlings treated by the pesticide, and 3 formulations are found to play a good role in inhibiting aphid occurrence: the control group had 18.15% aphid incidence, the six ingredient formula had the lowest 6.4% aphid incidence, the polythiol formula had 6.96% aphid incidence, and the auxin formula had 7.03% aphid incidence.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The formula of the fruit tree seedling coating agent is characterized by comprising a polythiol formula, an auxin formula and a six-component formula, wherein the specific material proportion of each formula is as follows:
polythiol formulations: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate and 1g of thiamethoxam;
the formula of the auxin comprises the following components: 500mL of water, 500mL of Nippon emulsion paint, 5g of carbendazim, 2g of copper sulfate, 1g of thiamethoxam, 0.0001g of 28-epibrassinolide and 0.00125g of naphthylacetic acid;
the six-component formula comprises: 500mL of water, 500mL of Nippon emulsion paint, 50g of carbendazim, 12.5g of pyraclostrobin, 5g of difenoconazole, 10g of fluxapyroxad hydroxylamine, 10g of thiamethoxam and 8.96g of spirotetramat.
2. The formula of the fruit tree seedling coating agent as claimed in claim 1, wherein: the pesticide composition comprises 5g of carbendazim, 1g of thiamethoxam, 0.0001g of 28-epibrassinolide, 0.01mL of 28-brassinolide missible oil, 0.00125g of naphthylacetic acid and 0.025mL of 5% of naphthylacetic acid aqueous solution, 100g of carbendazim and 50% of fluxapyroxad wettable powder, 12.5g of pyraclostrobin and 50mL of 25% of pyraclostrobin missible oil, 5g of difenoconazole and 40g of 250g/L of difenoconazole, 10g of fluxapyroxad suspension, 40g of thiamethoxam and 25% of thiamethoxam, and 8.86g of spirotetramat 4.40% of ethyl spirotetramat 22.4 mL of ethyl spirotetramat.
3. The preparation method of the fruit tree seedling coating agent according to claim 2, wherein the preparation method comprises the following steps: putting 500mL of clear water and 500mL of Nippon paint into a measuring cylinder, sequentially adding 10g of 50% carbendazim wettable powder, 2g of copper sulfate and 10g of 10% thiamethoxam granules into the measuring cylinder, and uniformly stirring the components in the measuring cylinder by using a stirring rod until the components are completely dissolved to obtain the polythiol formula.
4. The preparation method of the fruit tree seedling coating agent according to claim 2, wherein the preparation method comprises the following steps: 500mL of clear water and 500mL of Nippon paint are put into a measuring cylinder, then 10g of 50% carbendazim wettable powder, 2g of copper sulfate, 10g of 10% thiamethoxam granules, 0.01mL of 28-epibrassinolide emulsifiable solution with the content of 0.01% and 0.025mL of naphthylacetic acid aqueous solution with the content of 5% are sequentially added into the measuring cylinder, and then a stirring rod is adopted to stir in the measuring cylinder until all the materials are dissolved to obtain the auxin formula.
5. The preparation method of the fruit tree seedling coating agent according to claim 1, wherein the preparation method comprises the following steps: putting 500mL of clear water and 500mL of Nippon paint into a measuring cylinder, sequentially adding 100g of 50% carbendazim wettable powder, 50mL of 25% pyraclostrobin missible oil, 40mL of 250g/L fluconazole hydroxylamine suspending agent, 50g of 10% difenoconazole, 40g of 25% thiamethoxam granules and 40mL of 22.4% spirotetramat suspending agent into the measuring cylinder, and stirring by using a stirring rod until all the components are dissolved to obtain the six-component formula.
6. The preparation method of the fruit tree seedling coating agent according to claims 3-5, wherein: the measuring cylinder has a capacity of 5L, and the stirring rod is made of glass materials.
7. The application of the fruit tree seedling coating agent as claimed in claim 1, wherein: the fruit tree seedling coating agent can be divided into two types according to the use method:
(1) The soaking method comprises the following steps: putting the coating agent into an iron bucket, putting the whole apple seedlings into the iron bucket, soaking for 30min, coating the whole apple seedlings, and planting the apple seedlings after the coating agent is solidified;
(2) The smearing method comprises the following steps: putting the coating agent into an iron bucket, uniformly coating the coating agent on the main branches of the apple seedlings with a brush, wherein the thickness of the coating agent is about 2 mm, and planting the apple seedlings after the coating agent is solidified.
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