CN116897936A - Pesticide for preventing and treating tea cake diseases - Google Patents
Pesticide for preventing and treating tea cake diseases Download PDFInfo
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- CN116897936A CN116897936A CN202310849104.9A CN202310849104A CN116897936A CN 116897936 A CN116897936 A CN 116897936A CN 202310849104 A CN202310849104 A CN 202310849104A CN 116897936 A CN116897936 A CN 116897936A
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- bromothalonil
- azoxystrobin
- pesticide
- tea cake
- preventing
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- 201000010099 disease Diseases 0.000 title claims abstract description 41
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 41
- 239000000575 pesticide Substances 0.000 title claims abstract description 27
- 241001122767 Theaceae Species 0.000 title claims abstract 9
- 239000005730 Azoxystrobin Substances 0.000 claims abstract description 33
- WFDXOXNFNRHQEC-GHRIWEEISA-N azoxystrobin Chemical compound CO\C=C(\C(=O)OC)C1=CC=CC=C1OC1=CC(OC=2C(=CC=CC=2)C#N)=NC=N1 WFDXOXNFNRHQEC-GHRIWEEISA-N 0.000 claims abstract description 33
- DHVLDKHFGIVEIP-UHFFFAOYSA-N 2-bromo-2-(bromomethyl)pentanedinitrile Chemical compound BrCC(Br)(C#N)CCC#N DHVLDKHFGIVEIP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000000375 suspending agent Substances 0.000 claims description 12
- 239000004563 wettable powder Substances 0.000 claims description 11
- 239000003814 drug Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 21
- 229940079593 drug Drugs 0.000 abstract description 5
- 244000052769 pathogen Species 0.000 abstract description 5
- 206010059866 Drug resistance Diseases 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 244000269722 Thea sinensis Species 0.000 description 39
- 238000012360 testing method Methods 0.000 description 14
- 230000002265 prevention Effects 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 238000011835 investigation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 3
- 240000003553 Leptospermum scoparium Species 0.000 description 3
- 235000015459 Lycium barbarum Nutrition 0.000 description 3
- 231100000674 Phytotoxicity Toxicity 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000035784 germination Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000221198 Basidiomycota Species 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 244000241235 Citrullus lanatus Species 0.000 description 1
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000221785 Erysiphales Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 241000918585 Pythium aphanidermatum Species 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 241000219094 Vitaceae Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 235000021021 grapes Nutrition 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000020232 peanut Nutrition 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- 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
- A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/34—Nitriles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P3/00—Fungicides
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The application relates to the technical field of pesticides, and discloses a pesticide for preventing and treating tea cake diseases, which comprises azoxystrobin and bromothalonil, wherein the mass ratio of the azoxystrobin to the bromothalonil is 1-2: 1-4, is used for preventing and treating tea cake diseases. According to the application, two medicaments of azoxystrobin and bromothalonil are compounded for use, so that the two medicaments have a synergistic effect, the problem of drug resistance of drug-resistant tea cake pathogens to single azoxystrobin or bromothalonil is solved, the control effect can reach about 90%, especially the control effect is more remarkable on pathogens with drug resistance to azoxystrobin or bromothalonil, the pesticide consumption can be effectively reduced, the labor intensity is reduced, the cost is saved, the problem of pesticide abuse is solved, the cost is low, and the use effect is good.
Description
Technical Field
The application relates to the technical field of pesticides, in particular to the technical field of pesticides for preventing and treating tea cake diseases in tea areas.
Background
Tea is one of the traditional agricultural products in China, is a drink widely spread in the world, has rich cultural connotation and economic value, and the tea industry becomes the prop industry of agriculture, rural economy and foreign trade in China. In recent years, the tea planting area of China is about 5000 ten thousand mu, the construction of a green ecological tea garden is quickened, and tea products are developed towards high quality multiple directions. Tea cake disease is an important disease which damages tender tips and tender leaves of tea trees, and almost all tea areas in China occur, and 40% -50% of yield loss is caused to tea production. In the current production practice, a single pesticide is generally selected for preventing and treating tea cake diseases. The single medicament can prevent and treat the tea cake diseases, the germs are more likely to generate resistance, the times of prevention and treatment and the pesticide dosage are increased in a doubling way in production, the prevention and treatment cost is correspondingly increased, and the pollution to the environment is serious.
In summary, the inventors found that at least the following problems exist in the prior art: the pesticide control effect is gradually deteriorated, the durability is gradually weakened, the cost of the pesticide application labor is high, and the cost of the pesticide is high, so that the problem of pesticide abuse is widely caused.
Disclosure of Invention
The application aims to provide a pesticide for preventing and treating tea cake diseases, which can reduce labor force and cost and solve the problem of pesticide abuse so as to overcome the defects of the prior art.
In order to solve the technical problems, the application provides a pesticide for preventing and treating tea cake diseases, which comprises azoxystrobin and bromothalonil, wherein the mass ratio of the azoxystrobin to the bromothalonil is 1-2: 1-4, is used for preventing and treating tea cake diseases.
The azoxystrobin is a azoxystrobin suspending agent with the mass percentage of 25%.
The bromothalonil is 25% by mass of bromothalonil wettable powder.
The mass ratio of the azoxystrobin to the bromothalonil is 1:2.
azoxystrobin is a prevention and treatment medicament for tea cake diseases, and has the advantages of wide sterilization spectrum, stress resistance improvement, aging delay, low dosage, long lasting period, high efficiency, safety, convenient use and the like.
Bromothalonil is a compound with low toxicity, broad spectrum and sterilization, mildew prevention and algae removal performances, can inhibit and eradicate the growth of bacteria, fungi and algae, and has good control effect on crop diseases. The composition is widely applicable to various crops such as fruit trees, grapes, vegetables, cotton, peanuts, watermelons, tobacco, tea trees, flowers and the like, and can be used for preventing and treating various fungal and bacterial diseases such as anthracnose, tea cake diseases, scab, powdery mildew, rust diseases, damping-off diseases, root rot, ulcer diseases, bacterial wilt, angular leaf spot and the like. The application mode is flexible, and the foliar spray, seed treatment and soil root irrigation all show better control effect. The application mode is flexible, and the foliar spray, seed treatment and soil root irrigation all show better control effect.
Compared with the prior art, the application has the advantages that the azoxystrobin and the bromothalonil are compounded for use, so that the azoxystrobin and the bromothalonil have a synergistic effect, the problem of drug resistance of drug-resistant tea cake pathogens to single azoxystrobin or bromothalonil is solved, the control effect can reach about 90%, especially the pathogenic bacteria which generate drug resistance to azoxystrobin or bromothalonil, the control effect is more obvious, the dosage of pesticides can be effectively reduced, the labor intensity is reduced, the cost is saved, the problem of pesticide abused application is solved, the method is simple and easy, the material sources are wide, the cost is low, and the use effect is good.
The foregoing description is only an overview of the present application, and is intended to provide a better understanding of the technical means of the present application, as it is embodied in accordance with the present application, and is intended to provide a better understanding of the above and other objects, features and advantages of the present application, as it is embodied in the following specific examples.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below. However, those of ordinary skill in the art will understand that in the embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the claimed technical solution of the present application can be realized without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments can be mutually combined and referred to without contradiction.
Example 1
S1, materials and design
S1.1, test reagent:
25% azoxystrobin suspending agent (Nantong Shenyu green pharmaceutical Co., ltd., jiangsu province);
25% bromothalonil wettable powder (Jiangsu Tocopheroidal Co., ltd.).
S1.2, test design:
25% of azoxystrobin suspending agent (25 mL/mu). 25% of bromothalonil wettable powder (50 g/mu) (the ratio of active ingredients is 1:2), 50 mL/mu of azoxystrobin suspending agent of control medicament 25% and 75 g/mu of bromothalonil wettable powder of control medicament 25% and blank control (clear water treatment) are treated for 4 times, and each treatment is repeated for 4 times, 16 cells are counted, and each cell is 50m 2 The treatment areas are arranged randomly, and besides the application mode, the land condition, the cultivation condition and the water and fertilizer management are basically consistent.
S2, test method
The test is carried out in Qinglong county Biwenfengcu of Guizhou province, the test land is flat, the fertility is moderate, the irrigation is convenient, and the tea cake disease is serious all the year round. The tested tea variety 'Qian tea No. 8', the tea plant growth vigor and the management level are consistent, and no other medicament is used in the test period. Spraying with WBD-18 knapsack electric sprayer with water consumption of 50L/mu and dispensing in 4 cells. The first administration was at 2022, 6 and 21 days, and the second administration was at 28 days, 6. The day of application is sunny, no abnormal weather, the temperature is 19-27 ℃ and the average temperature is 23 ℃.
S3, investigation method
Investigation of the disease index of the tea cake in the test area for 1 time is carried out before the application of the medicine, 7d after the 1 st application of the medicine, 7d after the 2 nd application of the medicine and 14d after the 2 nd application of the medicine, investigation of 3 rd leaves under the bud of the young shoots is randomly selected in each area, 100 leaves are investigated in total, the leaf numbers of all stages of diseases are recorded, the disease index and the prevention and treatment effect are calculated, and the difference significance test is carried out on the test results by a Duncan new complex polar difference method.
Wherein: CK (CK) 0 Index of disease state before administration of CK in blank control area 1 Is the disease index of the blank control area after administration, PT 0 Index of pre-drug condition, PT, of the drug treatment area 1 Is the disease index of the medicament treatment area after the medicament is applied.
S4, disease index:
the investigation and grading standard refers to GB/T23222-2008 of national Standard pesticide field efficacy Experimental criteria of the people's republic of China.
Level 0: no disease spots;
stage 1: the area of the disease spots accounts for less than 5% of the whole leaf area;
3 stages: the area of the lesion accounts for 6-10% of the whole leaf area;
5 stages: the area of the lesion accounts for 11% -25% of the whole leaf area;
7 stages: the area of the lesion accounts for 26% -50% of the whole leaf area;
stage 9: the area of the disease spots accounts for more than 50% of the whole leaf area.
Visual inspection was used to record the type and extent of phytotoxicity and describe the symptoms of phytotoxicity (dwarfing, chlorosis, malformation, etc.). While beneficial effects on the crop (e.g., acceleration of ripening, increased vigor, etc.) are recorded. In addition, any impact on other pests should be noted, including beneficial and non-beneficial effects.
Samples were collected at the time of tea harvest and the final residual amount of test agents in the tea, soil was determined.
S5, results and analysis
The control effect of 25% azoxystrobin suspending agent (25 mL/mu) and 25% bromothalonil wettable powder (50 g/mu) (the ratio of the effective components is 1:2) on tea cake diseases is shown in table 1, and the effects of 7d, 14d and 21d after the preparation are 83.04%, 87.44% and 90.03% respectively.
The control effect of 50 mL/mu of azoxystrobin suspending agent of 25% of the control medicament on tea cake diseases after 7d and 14d of the medicament is 76.85%, 73.88% and 67.67% respectively.
The control effect of 25% bromothalonil wettable powder of the control medicament on tea cake diseases at the concentration of 75 g/mu in 7d and 14d is 78.60%, 74.15% and 71.54% respectively.
TABLE 1 effect of tested pesticides on controlling tea cake diseases
Note that: the english letters of the data in the table are the test results of the Duncan multiple comparisons, and the same letters in the same column indicate that the difference is not significant at the 0.05 level, and the difference is significant.
S6, checking by Duncan new complex polar error method
The prevention and treatment effects of 25% azoxystrobin suspending agent (25 mL/mu) and 25% bromothalonil wettable powder (50 g/mu) (the ratio of the effective components is 1:2) on tea cake diseases are obviously higher than those of a control medicament in 7d and 14d after the preparation. The control agent has the advantages that 50 mL/mu of the azoxystrobin suspending agent with the concentration of 25% is equivalent to that of 25% bromothalonil wettable powder with the concentration of 75 g/mu after the drug for 7d and 14d, and the difference is not obvious; after 21d, the prevention effect of 50 mL/mu of the azoxystrobin suspending agent with 25% of the azoxystrobin suspending agent is obviously lower than 75 g/mu of bromothalonil wettable powder with 25%.
During the whole test period, 25% azoxystrobin suspending agent (25 mL/mu) and 25% bromothalonil wettable powder (50 g/mu) are used for preventing and treating tea cake diseases, and the tea grows normally without causing phytotoxicity symptoms.
The final residual amount measurement results of the test agents showed that the presence of the test pesticide residue was not detected in both tea leaves and soil, as shown in table 2.
TABLE 2 Final residual amount of pesticide tested
Note that: ND indicates undetected.
S7, indoor co-toxicity coefficient determination
The experiment of indoor co-toxicity coefficient measurement experiment shows that the different proportions of azoxystrobin and bromothalonil carry out statistical analysis on the experiment of tea cake germ basidiomycete germination, and the results are shown in table 3.
TABLE 3 inhibition of the germination of basidiomycetes of tea cake pathogens by azoxystrobin bromothalonil combination
As can be easily seen from table 3, the application has remarkable inhibition effect on the germination of basidiospores of tea cake pathogens, and especially has the following effective components in proportion of 1:2 has high co-toxicity coefficient and obvious synergistic effect, is a low-toxicity pesticide formula, is easy to decompose, is safe to environment, has no residue in tea leaves and soil, and can be safely used on tea trees.
The application relates to a preferable formula for preventing and treating tea cake diseases, which consists of azoxystrobin and bromothalonil, and the test results show that the application has better preventing and treating effect on the tea cake diseases, and the prevention effect after 21d can reach about 90%; the formula is safe to the environment, has no residue in tea and soil, and can be popularized and used.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the application and that various changes in form and details may be made therein without departing from the spirit and scope of the application.
Claims (4)
1. The pesticide for preventing and treating tea cake diseases is characterized by comprising azoxystrobin and bromothalonil, wherein the mass ratio of the azoxystrobin to the bromothalonil is 1-2: 1-4, is used for preventing and treating tea cake diseases.
2. A pesticide for preventing and treating tea cake diseases according to claim 1, wherein the azoxystrobin is a azoxystrobin suspending agent with a mass percentage of 25%.
3. The pesticide for preventing and treating tea cake diseases according to claim 1, wherein the bromothalonil is 25% by mass of bromothalonil wettable powder.
4. The pesticide for preventing and treating tea cake diseases according to claim 1, wherein the mass ratio of azoxystrobin to bromothalonil is 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310849104.9A CN116897936A (en) | 2023-07-12 | 2023-07-12 | Pesticide for preventing and treating tea cake diseases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310849104.9A CN116897936A (en) | 2023-07-12 | 2023-07-12 | Pesticide for preventing and treating tea cake diseases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116897936A true CN116897936A (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310849104.9A Pending CN116897936A (en) | 2023-07-12 | 2023-07-12 | Pesticide for preventing and treating tea cake diseases |
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| Country | Link |
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| CN (1) | CN116897936A (en) |
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2023
- 2023-07-12 CN CN202310849104.9A patent/CN116897936A/en active Pending
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