CN118303409A - Efficient nematicide composition containing trifluoropyridinamine and amino-oligosaccharin and application thereof - Google Patents
Efficient nematicide composition containing trifluoropyridinamine and amino-oligosaccharin and application thereof Download PDFInfo
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- CN118303409A CN118303409A CN202410490029.6A CN202410490029A CN118303409A CN 118303409 A CN118303409 A CN 118303409A CN 202410490029 A CN202410490029 A CN 202410490029A CN 118303409 A CN118303409 A CN 118303409A
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- oligosaccharin
- trifluoropyridinamine
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- 239000000203 mixture Substances 0.000 title claims abstract description 41
- YPUFJIJQDMKJHE-UHFFFAOYSA-N 3,4,5-trifluoropyridin-2-amine Chemical compound NC1=NC=C(F)C(F)=C1F YPUFJIJQDMKJHE-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 239000005645 nematicide Substances 0.000 title claims abstract description 19
- 239000004480 active ingredient Substances 0.000 claims abstract description 11
- 239000000575 pesticide Substances 0.000 claims abstract description 6
- 241000219112 Cucumis Species 0.000 claims abstract description 4
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims abstract description 4
- 235000013339 cereals Nutrition 0.000 claims abstract description 4
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 4
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- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims abstract description 3
- -1 trifluoropyridine amine Chemical class 0.000 claims description 15
- 241000244206 Nematoda Species 0.000 claims description 11
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- LWEAHXKXKDCSIE-UHFFFAOYSA-M 2,3-di(propan-2-yl)naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S([O-])(=O)=O)=C(C(C)C)C(C(C)C)=CC2=C1 LWEAHXKXKDCSIE-UHFFFAOYSA-M 0.000 description 1
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- 235000014443 Pyrus communis Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 101000611441 Solanum lycopersicum Pathogenesis-related leaf protein 6 Proteins 0.000 description 1
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- QGLZXHRNAYXIBU-WEVVVXLNSA-N aldicarb Chemical compound CNC(=O)O\N=C\C(C)(C)SC QGLZXHRNAYXIBU-WEVVVXLNSA-N 0.000 description 1
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- MSWZFWKMSRAUBD-UHFFFAOYSA-N beta-D-galactosamine Natural products NC1C(O)OC(CO)C(O)C1O MSWZFWKMSRAUBD-UHFFFAOYSA-N 0.000 description 1
- MSWZFWKMSRAUBD-QZABAPFNSA-N beta-D-glucosamine Chemical compound N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O MSWZFWKMSRAUBD-QZABAPFNSA-N 0.000 description 1
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- IRUJZVNXZWPBMU-UHFFFAOYSA-N cartap Chemical compound NC(=O)SCC(N(C)C)CSC(N)=O IRUJZVNXZWPBMU-UHFFFAOYSA-N 0.000 description 1
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- RQFQJYYMBWVMQG-IXDPLRRUSA-N chitotriose Chemical compound O[C@@H]1[C@@H](N)[C@H](O)O[C@H](CO)[C@H]1O[C@H]1[C@H](N)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)N)[C@@H](CO)O1 RQFQJYYMBWVMQG-IXDPLRRUSA-N 0.000 description 1
- LFHISGNCFUNFFM-UHFFFAOYSA-N chloropicrin Chemical compound [O-][N+](=O)C(Cl)(Cl)Cl LFHISGNCFUNFFM-UHFFFAOYSA-N 0.000 description 1
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- DUFVKSUJRWYZQP-UHFFFAOYSA-N fosthiazate Chemical compound CCC(C)SP(=O)(OCC)N1CCSC1=O DUFVKSUJRWYZQP-UHFFFAOYSA-N 0.000 description 1
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
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- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a nematicide composition, which belongs to the technical field of pesticides, and the active ingredients (active ingredients) of the nematicide composition contain trifluoropyridinamine and amino-oligosaccharin, and the active mass ratio is 5:1-1:5. The nematicidal composition contains 1-60% of active ingredients. The composition has an increased application range and is suitable for preventing and controlling root-knot nematodes of cereal, melon and fruit or vegetable crops.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to an application of an insecticidal composition containing trifluoropyridinamine and amino-oligosaccharin in preventing and controlling cucumber root-knot nematodes.
Background
The trifluoropyridine amine is a pathogenic bacteria respiration inhibitor, and can inhibit the function of mitochondria by interfering with the tricarboxylic acid circulation on the respiratory electron transfer chain complex II, prevent the energy generation of the tricarboxylic acid, inhibit the growth of pathogenic bacteria and finally lead to death of the tricarboxylic acid. The trifluoropyridinamine also paralyzes nematode larvae by interfering with respiration, thereby leading to energy exhaustion in cells and inhibiting egg hatching.
The amino-oligosaccharin (chitosan oligosaccharide) refers to oligosaccharide in which D-glucosamine is connected with beta-1.4 glycosidic bond, and is prepared by degrading chitin to obtain chitosan, or by fermenting and extracting with microorganism. Amino oligosaccharins (agricultural chitosan oligosaccharides) can inhibit the growth of some germs, influence the germination of fungus spores, induce the variation of hypha morphogenesis, change the spore growth and the like. Can excite genes in plants to generate disease-resistant chitinase, glucanase, plant protection element, PR protein and the like, has cell activation effect, is favorable for recovering victimized plants, promotes root and seedling strengthening, enhances stress resistance of crops and promotes plant growth and development. The amino oligosaccharin solution has the functions of killing virus, bacteria and fungi. Not only has very strong prevention and elimination effects on fungi, bacteria and viruses, but also has the effects of nutrition, regulation, detoxification and antibiosis. The amino-oligosaccharin can also digest the egg wall of the root-knot nematode by inducing actinomycetes to produce chitinase, so that the root-knot nematode can not hatch, and further has an inhibition effect on the nematode
Root knot nematodes are highly specialized omnivorous plant pathogenic nematodes. Plant protection guidelines for preventing and comprehensively controlling root-knot nematode disease must be strictly implemented, and agricultural and physical control measures are focused on, and the harm of the root-knot nematode disease can be effectively prevented by matching with chemical and biological control.
The root knot nematode hosts are very wide and can harm more than 130 crops in 39 families. The nematodes are very small and difficult to see by the naked eye. The most amount of the insects are distributed in the soil of 0-20 cm, especially the soil of 3-9 cm. Female and male variant, female adult round pear shape, male adult linear, often with eggs or second-age larvae left in soil along with plant residues or in manure overwintering or invasion of second-age larvae from tender roots when the environment is proper next year, and reproduction hazard. Nematodes can be transmitted through soil with insects or seedlings and irrigation water. The nematode is quickly propagated under the condition that the soil temperature is 25-30 ℃ and the soil humidity is 40-70%, the nematode stops moving below 10 ℃ and dies in 10 minutes at 55 ℃.
The existing prevention and treatment agents mainly comprise abamectin, fosthiazate, carb acre, chloropicrin, bacillus firmus, methyl isosalfop, carbofuran, aldicarb, dazomet, cartap, verticillium thimerosal and the like. Cucumber root-knot nematodes usually survive in soil layers with a depth of 5-30 cm, live through winter in soil with eggs along with plant stubbles or live through winter in soil with second-stage larvae, and develop at a proper temperature of 25-30 ℃ and a water content of about 40%. Is transmitted by the soil with insects, the disease and residue, the farm tool carrying, running water and the like. The occurrence of continuous cropping is serious, and continuous cropping is a main reason for the occurrence of root knot nematode disease. The existing treatment mode has poor effect, is not thorough enough for killing the root-knot nematodes and needs repeated treatment.
Disclosure of Invention
The invention aims to provide a plant nematicidal composition containing trifluoropyridinamine and amino oligosaccharin, which has wide application range, low cost and good effect in chemical-biological synergistic effect. It is also an object of the present invention to provide the use of the nematicidal composition.
The object of the invention is achieved by the following measures:
A nematicidal composition contains the active ingredients (active ingredients) of trifluoropyridinamine and amino oligosaccharin, and the active mass ratio is 5:1-1:5. The nematicidal composition contains 1-60% of active ingredients.
The nematicidal composition is prepared by compounding the trifluoropyridine amine, the amino-oligosaccharin, the auxiliary agent and the excipient into any one of dosage forms allowed in pesticide. Such adjuvants, excipients include, but are not limited to, dispersing agents, defoamers, wetting agents, disintegrants, and the like.
The nematicidal composition is prepared from wettable powder, suspending agent and granules.
The nematicidal composition is applied to the prevention and treatment of nematodes in cereal crops, melons and fruits or vegetable crops.
The invention has the beneficial effects that:
1. The trifluoropyridine amine used in the invention is a novel heterocyclic nematicide, the amino-oligosaccharin is a biological nematicide, and the two are mutually mixed to avoid low touch, so that the synergistic effect can be achieved, the dosage is reduced, and the cost is reduced.
2. The composition has an increased application range and is suitable for preventing and controlling root-knot nematodes of cereal, melon and fruit or vegetable crops.
3. According to the composition provided by the invention, two medicaments with completely different action mechanisms are mixed, so that the composition has a good control effect on cucumber root-knot nematodes, the generation of drug resistance of pests is delayed, the drug cost is saved, and the composition is safe to the environment.
Detailed Description
1. Detailed description of the preferred embodiments
Example 1:
25g of trifluoropyridinamine, 10g of amino oligosaccharin, 8g of phenethyl phenol polyoxyethylene ether phosphonate, 2g of fatty alcohol polyoxyethylene ether, 5g of ethylene glycol, 0.1g of kathon, 0.1g of xanthan gum and deionized water are added to 100g, and a high-speed homogenizer is used for stirring uniformly and sanding to prepare the suspending agent.
Example 2:
20g of trifluoropyridinamine, 20g of amino oligosaccharin, 3g of detergent LS (sodium p-methoxy fatty acid aminobenzene sulfonate), 2g of dispersing agent NNO (sodium methylene dinaphthyl sulfonate), 8g of white carbon black and 100g of kaolin are added into a mixture for jet milling, so as to prepare wettable powder.
Example 3:
adding 10g of trifluoropyridinamine, 5g of amino-oligosaccharin, 5g of white oil, 3g of red pigment and 100g of attapulgite particle carrier, and uniformly mixing to prepare the granules.
Example 4:
10g of trifluoropyridinamine, 40g of amino oligosaccharin, 5g of nekal LS (alkyl sulfonate), 5g of carboxymethyl cellulose and 45g of light calcium carbonate are uniformly mixed to prepare wettable powder.
Example 5:
15g of trifluoropyridinamine, 20g of amino oligosaccharin, 6g of phenethyl phenol polyoxyethylene ether carboxylate, 2g of fatty alcohol polyoxyethylene ether, 5g of ethylene glycol, 0.1g of kathon, 0.1g of xanthan gum and deionized water are added to 100g, and a high-speed homogenizer is used for stirring uniformly and sanding to prepare the suspending agent.
Example 6:
10g of trifluoropyridinamine, 40g of amino oligosaccharin, 3g of detergent LS (sodium p-methoxy fatty acid aminobenzene sulfonate), 2g of dispersing agent NNO (sodium methylene dinaphthyl sulfonate) and 100g of kaolin are added and mixed to prepare wettable powder.
2. Application examples
1. Application example 1
Experiment for controlling cucumber root-knot nematode by using preparation prepared in the embodiment
1.1 The tested crop is cucumber root-knot nematode variety for indoor routine screening.
1.2 Test treatments: the dosage of the test agent is 5 concentration gradients according to different components, and the comparison agent is trifluoropyridinamine, amino oligosaccharin and blank clear water.
1.3 Test method: the test compound medicament is prepared into 7 series of mass concentrations according to the test proportion, and meanwhile, a single dose of control and a blank control are arranged, and each treatment is repeated for 4 times. 500g of field soil is filled in 2L of dryers, 35mL of prepared liquid medicine is added into each dryer, the treatment time is 7 days, the liquid medicine is opened for 4 days after a sealing cover is opened, the quantity of nematodes treated is measured by adopting a centrifugal method, and the control effect is calculated. Co-toxicity coefficients (CTCs) were calculated by the grand cloud-Peel method.
When CTC < 80, the composition exhibits antagonism, when 80 < CTC < 120, the composition exhibits additive effect, and when CTC >120, the composition exhibits synergistic effect.
1.4 Test results are shown in the following table:
TABLE 1 indoor toxicity determination of Trifluoropyridine amine-amino oligosaccharin formulation and single dose to root knot nematode
| Test agent | Virulence regression curve | LC50(mg/L) | Co-toxicity coefficient |
| Trifluoro-pyridinamine A | Y＝7.9542X+4.8912 | 1.032 | - |
| Amino oligosaccharin B | Y＝1.4677X+3.2149 | 16.453 | - |
| A:B＝1:5 | Y＝3.7066+1.7138X | 2.684 | 174.8 |
| A:B＝1:3 | Y＝5.886X+3.2128 | 2.012 | 170.1 |
| A:B＝1:1 | Y＝5.6938X+4.2107 | 1.376 | 141.5 |
| A:B＝3:1 | Y＝1.8149X+4.9452 | 1.012 | 132.5 |
| A:B＝5:1 | Y＝4.7265X+4.9857 | 1.007 | 122.0 |
After the trifluoropyridinamine and the amino-oligosaccharin are mixed according to the proportion of 5:1, 3:1, 1:1, 1:3 and 1:5, the LC50 of each proportion is measured, and finally the co-toxicity coefficient of each proportion mixture is calculated. The results show that the compound co-toxicity coefficient of the two is more than 120, and the synergistic effect is achieved.
2. Application example 2
The preparation prepared by the embodiment is used for preventing and controlling cucumber root-knot nematode test. The test conditions and results are shown in the following table:
2.1 test conditions: the test is set in a high-efficiency energy-saving sunlight greenhouse, soil fertility is medium, farmyard manure is 45t/hm 2 before field planting, ridges are formed in the north-south direction, the ridge width is 80cm, the height is 15cm, the furrow width is 40cm, field planting furrows are formed in the ridges, field planting is carried out according to plant spacing of 30cm, and film covering cultivation is carried out. The experimental agent is as follows: 35% of a trifluoropyridinamine-amino-oligosaccharin suspending agent, 40% of a trifluoropyridinamine-amino-oligosaccharin wettable powder and 15% of a trifluoropyridinamine-amino-oligosaccharin granule (prepared by the method of examples 1,2 and 3 respectively) are respectively denoted by A, B, C. The control medicament 450g/L of the trifluoropyridinamine suspending agent and the 1% amino-oligosaccharin soluble agent are respectively represented by D, E, an equivalent amount of blank clear water is additionally arranged as a blank control, the blank control is represented by F, 6 treatments are carried out, and the experimental dosage is 25 g/mu according to the active ingredients. Cell area 15m 2, 4 repetitions, random block arrangement.
2.2 Test method: the agent is uniformly spread before cucumber field planting for 20d, and then deep ploughing is carried out for 25-30 cm on the soil. Cucumber from spring test was planted 25 days 2, 2023 and applied 5 days 2, 2017. Cucumber in autumn test was planted in 2023, 7, 15, and 2017, 6, 25.
The pesticide is investigated according to pesticide field efficacy test criterion (I) of nematicide for preventing and controlling root-knot nematodes. Specifically, each cell is sampled at 5 points randomly, each point collects soil samples from the root periphery (0-20 cm deep) of crops, and 500mL of soil samples are sampled altogether. After soil collection, the soil is brought back to a laboratory for separation by a tray method, and the number of nematodes separated is recorded. Calculating the rate of reduction of insect population and the prevention and control effect. The statistical test of Duncan's new complex polar error method was performed using DPS (Data Processing System) data processing software.
2.3 Method for calculating efficacy
2.4 Test results are shown in the following table:
And after the application, the observation is continued, the cucumber variety to be tested is safe within the range of the test dosage, and the cucumber grows normally. Compared with the blank control, no abnormality occurred.
Table 2: field test results of the combination of trifluoropyridinamine and amino-oligosaccharin on root-knot nematode (60 days)
Note that: the control effects were all 3 replicates on average, a indicated significant at the a=0.05 level, b indicated a difference at the a=0.05 level, and c indicated insignificant at the a=0.05 level.
The field pesticide effect result shows that the composition of the trifluoropyridinamine and the amino-oligosaccharin has excellent control effect on cucumber root-knot nematodes, the control effect is better than that of single-dose varieties, the duration is long, and the composition is safe to cucumbers. Has remarkable practical application value.
It will be apparent that the embodiments described above are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Claims (9)
1. The efficient nematicide composition containing the trifluoropyridine amine and the amino-oligosaccharin is characterized in that the effective components of the efficient nematicide composition comprise the trifluoropyridine amine and the amino-oligosaccharin, and the weight ratio of the trifluoropyridine amine to the amino-oligosaccharin is 5:1-1:5.
2. The efficient nematicide composition of claim 1 wherein the weight ratio of trifluoropyridine amine to amino-oligosaccharin is 3:1-1:3.
3. The efficient nematicide composition of claim 1 or 2 wherein the weight ratio of trifluoropyridine amine to amino-oligosaccharin is 2:1-1:2.
4. A high-efficiency nematicide composition comprising trifluoropyridinamine and amino-oligosaccharin according to claim 1, wherein the content of the active ingredient in said high-efficiency nematicide composition is 1-60%.
5. A high-efficiency nematicide composition comprising a trifluoropyridinamine and an amino-oligosaccharin according to claim 1 or 4, wherein the content of the active ingredient in said high-efficiency nematicide composition is 25-50%.
6. The efficient nematicide composition containing the trifluoropyridine amine and the amino-oligosaccharin according to claim 1, wherein the composition takes the trifluoropyridine amine and the amino-oligosaccharin as active ingredients, and is compounded with an auxiliary agent and an excipient to form any one formulation allowed by pesticides.
7. The efficient nematicide composition of claim 6 wherein said formulation is a wettable powder, suspension, suspoemulsion or granule.
8. Use of a high-efficiency nematicide composition comprising a trifluoropyridinamine and an amino-oligosaccharin according to claim 1 for controlling nematodes in cereal, melon, fruit or vegetable crops.
9. The use according to claim 9, characterized in that: the dosage of the active ingredients of the efficient nematicide composition containing the trifluoropyridinamine and the amino-oligosaccharin is 10-30 g/mu.
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