Bactericide containing amino-oligosaccharin and application thereof

Abstract

The invention relates to the technical field of pesticides, in particular to an amino-oligosaccharin-containing bactericide and application thereof.The amino-oligosaccharin-containing bactericide has various important effects of preventing and treating diseases, promoting plant growth, improving soil, enhancing crop stress resistance and the like, amino-oligosaccharin can inhibit mycelial growth and spore germination of wheat scab pathogenic bacteria, and the content of the amino-oligosaccharin in the wheat scab pathogenic bacteria is increased. By inducing plant resistance and amino-oligosaccharin, the immunity of wheat can be remarkably improved, so that the wheat is more resistant to diseases such as gibberellic disease, amino-oligosaccharin can stimulate expression of disease-resistant genes in wheat plants, the plants can generate chitinase and glucanase disease-resistant substances, cell walls of pathogenic bacteria can be directly damaged, and the disease resistance of the wheat is improved. By adopting the mode, the technical problem in the prior art that the normal growth of the wheat is influenced due to the poor prevention and treatment effect of the existing mode on the wheat scab is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticides, and in particular to an amino oligosaccharide-containing fungicide and application thereof. Background Art

[0002] Wheat is one of the most important food crops in the world and is widely planted all over the world. Wheat fusarium wilt, also known as ear rot, wheat straw blight, rotten wheat head, red wheat head, and red head miasma, is a wheat disease caused by infection with various Fusarium fungi. During the wheat flowering period, especially under continuous rainy, humid and foggy weather conditions, the occurrence and prevalence of wheat fusarium wilt is particularly serious. In order to ensure the normal growth of wheat, it is usually necessary to prevent and control wheat fusarium wilt at different stages.

[0003] However, the existing methods are less effective in preventing and controlling wheat fusarium rust, thereby affecting the normal growth of wheat. Summary of the invention

[0004] The purpose of the present invention is to provide an amino oligosaccharide-containing fungicide and its application, aiming to solve the technical problem that the existing methods in the prior art are poorly effective in preventing and controlling wheat fusarium rust, thereby affecting the normal growth of wheat.

[0005] To achieve the above-mentioned purpose, the present invention adopts an amino-oligosaccharide-containing fungicide, including the amino-oligosaccharide-containing fungicide which is one of prothioconazole-amino-oligosaccharide suspension and amino-oligosaccharide aqueous solution.

[0006] Wherein, the prothioconazole·amino oligosaccharide suspension accounts for 30% of the total formula.

[0007] Wherein, the amino oligosaccharide aqueous solution accounts for 2% of the total formula.

[0008] The present invention also provides an application of an amino oligosaccharide-containing fungicide in preventing and treating wheat scab.

[0009] The invention discloses an amino-oligosaccharide-containing fungicide and application thereof. The amino-oligosaccharide-containing fungicide has multiple important functions such as preventing and curing diseases, promoting plant growth, improving soil and enhancing crop stress resistance. The amino-oligosaccharide can inhibit the mycelial growth and spore germination of wheat fusarium spores and can induce plant resistance. The amino-oligosaccharide can significantly improve the immunity of wheat, making it more resistant to diseases such as fusarium spores. The amino-oligosaccharide can stimulate the expression of disease-resistant genes in wheat plants, making the plants produce chitinase and glucanase disease-resistant substances. The produced chitinase and glucanase disease-resistant substances can directly destroy the cell walls of pathogens, thereby improving the resistance of wheat to fusarium spores. The use of the amino-oligosaccharide-containing fungicide can reduce the time cost of applying the medicine, thereby solving the technical problem that the existing methods in the prior art are poor in the prevention and treatment of wheat fusarium spores, thereby affecting the normal growth of wheat. DETAILED DESCRIPTION

[0010] The invention provides an amino-oligosaccharide-containing fungicide, which comprises a prothioconazole-amino-oligosaccharide suspension or an amino-oligosaccharide aqueous solution.

[0012] Wherein, the prothioconazole·amino oligosaccharide suspension accounts for 30% of the total formula.

[0013] Wherein, the amino oligosaccharide aqueous solution accounts for 2% of the total formula.

[0014] The present invention also provides an application of an amino oligosaccharide-containing fungicide in the test area A, the test area B, the test area C and the test area D for preventing and controlling wheat fusarium head blight.

[0015] In test area A, the experimental method is as follows:

[0016]

[0017] In this experimental area, treatment numbers 1-4 were experimental groups, and treatment numbers 5 and 6 were control groups. The ratios of prothioconazole and amino oligosaccharides in the 30% prothioconazole·amino oligosaccharides used in the experimental groups were 2% and 28%, respectively, and the ratios of prothioconazole and tebuconazole suspension in the 40% prothioconazole·tebuconazole suspension used in the control groups were 20% and 20%, respectively.

[0018] In test area B, the experimental method is as follows:

[0019]

[0020] In test area C, the experimental method is as follows:

[0021]

[0022] In this experimental area, treatment number 1 is the experimental group, and treatment number 2 is the control group. The ratio of prothioconazole to amino oligosaccharide in the 30% prothioconazole·amino oligosaccharide used in the experimental group is 2% and 28%, respectively.

[0023] In test area D, the experimental method is as follows:

[0024]

[0025] In this test area, treatment numbers 1 and 2 were experimental groups, and treatment number 3 was the control group. The ratio of amino oligosaccharides and prothioconazole in the 30% amino oligosaccharide·prothioconazole used in the experimental group was 2% and 28%, and the ratio of propylthio and propylthio in the 40% propylthio·tebuconazole SC used in the control group was 20% and 20%.

[0026] The application time of test area A, test area B, test area C and test area D is as follows:

[0027]

[0028] The experimental plot arrangement of experimental area A, experimental area B, experimental area C and experimental area D is as follows:

[0029] The area of ​​plot A in the experimental area is 20 square meters, repeated four times, and arranged in random blocks; the area of ​​plot B in the experimental area is 2.5 square meters, repeated four times, and arranged in random blocks; the area of ​​plot D in the experimental area is 2.5 acres, for demonstration, with low repetition.

[0030] Methodology:

[0031] Five diagonal sampling points were selected in each plot, and each point was surveyed 2.5m 2 The diseased ears with ergot in the iron ring are graded according to the percentage of the diseased ear area to the whole ear area, and the number of diseased ears in each grade and the total number of ears are recorded.

[0032] Grading Standard:

[0033] Level 0: The whole ear is disease-free;

[0034] Level 1: The diseased ear area accounts for less than 1 / 4 of the total ear area;

[0035] Level 3: The diseased ear area accounts for 1 / 4 to 1 / 2 of the whole ear area;

[0036] Level 5: The diseased ear area accounts for 1 / 2 to 3 / 4 of the whole ear area;

[0037] Level 7: The diseased ear area accounts for more than 3 / 4 of the total ear area.

[0038] Diseased ear classification:

[0039]

[0040]

[0041] The experimental results are as follows:

[0042] Experimental area A: The control effect of different application times of 30% prothioconazole·amino oligosaccharide SC at 45 ml per mu; the results showed that the control effect of one application at the early stage of flowering was 63%; the control effect of two applications at the jointing stage and the early stage of flowering was 77%; the control effect of the application at the early and peak stage of flowering was 92%, which was equivalent to the control agent 40% prothioconazole·tebuconazole SC; adding one application at the jointing stage improved the control effect to 96%, but there was no significant difference compared with two applications; the DON detection of wheat grains treated with three applications was 0;

[0043] The results show that conventional drugs can achieve relatively good control effects. Considering the cost of drug application and the control effect, it is recommended to use 30% prothioconazole·amino oligosaccharides twice at the early flowering stage and the peak flowering stage; 30% prothioconazole·amino oligosaccharides can also prevent powdery mildew. It can be used twice at the flowering stage and three times at the jointing stage. The control effect is 100%, which is better than the control drug 40% prothioconazole·tebuconazole SC.

[0044] The control effect of 30% prothioconazole·amino oligosaccharide on wheat scab in experimental area A is as follows:

[0045]

[0046] The control effect of 30% prothioconazole·amino oligosaccharide on wheat powdery mildew in experimental area A is as follows:

[0047]

[0048] Experimental area B: Comparing the control effects of 30% prothioconazole alone, 2% amino oligosaccharide alone and 30% amino oligosaccharide·prothioconazole, 30% prothioconazole alone and 30% amino oligosaccharide·prothioconazole had better control effects, with a control effect of more than 93%, and the toxin content was significantly reduced compared with the control. The control effect of amino oligosaccharide alone was about 13%, and it did not affect the toxin content;

[0049] The control effect of 30% amino oligosaccharide·prothioconazole on wheat scab in test area B is as follows:

[0050]

[0051]

[0052] Test area C: 30% oligosaccharides·prothioconazole at a dosage of 45ml / mu and 30% prothioconazole at a dosage of 45ml / mu were used to compare whether there was any difference in the control effect under the condition of equal amount of prothioconazole. The results showed that the control effect of 30% prothioconazole was slightly higher than that of 30% oligosaccharides·prothioconazole, with a significant difference; the toxin content of 30% prothioconazole was significantly lower than that of the control;

[0053] The control effect of 30% amino oligosaccharide·prothioconazole on wheat scab in experimental area C is as follows:

[0054]

[0055] Test area D: low concentration (40ml / mu) and high concentration 30% prothioconazole·amino oligosaccharide were designed respectively, and the control agent was 40% prothioconazole·amino oligosaccharide. The test results showed that the control effect of low concentration 30% prothioconazole·amino oligosaccharide was equivalent to that of the control agent 40% prothioconazole·amino oligosaccharide, and the control effect of high concentration 30% prothioconazole·amino oligosaccharide reached 94%, which was significantly better than the 89% control effect of the control agent;

[0056] The control effect of 30% prothioconazole·amino oligosaccharide on wheat scab in test area D is as follows:

[0057]

[0058] Experimental summary:

[0059] 1. 30% amino oligosaccharide·prothioconazole SC is used to control wheat scab, 45 ml per mu, twice at the early and peak flowering stage. It has a good control effect on wheat scab in different regions and under different disease conditions, which is higher or slightly higher than the control agent 40% prothioconazole·tebuconazole and 30% prothioconazole;

[0060] 2. 30% amino oligosaccharides·prothioconazole SC was used at the jointing stage and the early flowering stage, which had a good control effect on wheat powdery mildew. No powdery mildew spots were found in the application area, and the control effect was better than 40% prothioconazole·tebuconazole.

[0061] 3. 30% amino oligosaccharide·prothioconazole SC can prevent and treat wheat scab and significantly reduce DON toxin in wheat grains, and DON is significantly lower than the relevant national standards.

[0062] 4. The field application technology and demonstration effect of 30% amino oligosaccharides·prothioconazole SC for the control of wheat fusarium rust need further trial demonstration.

[0063] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An amino oligosaccharide-containing bactericide, characterized in that: The amino-oligosaccharide-containing fungicide is one of prothioconazole-amino-oligosaccharide suspension and amino-oligosaccharide aqueous solution.

2. The amino oligosaccharide-containing fungicide according to claim 1, characterized in that The prothioconazole·amino oligosaccharide suspension accounts for 30% of the total formula.

3. The amino oligosaccharide-containing fungicide according to claim 1, characterized in that The amino oligosaccharide aqueous solution accounts for 2% of the total formula.

4. Application of an amino oligosaccharide-containing fungicide in the prevention and treatment of wheat fusarium wilt.

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