CN116897948A - Pesticide for preventing and treating tea-stick thrips - Google Patents
Pesticide for preventing and treating tea-stick thrips Download PDFInfo
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- CN116897948A CN116897948A CN202310849290.6A CN202310849290A CN116897948A CN 116897948 A CN116897948 A CN 116897948A CN 202310849290 A CN202310849290 A CN 202310849290A CN 116897948 A CN116897948 A CN 116897948A
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- thrips
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- spirotetramat
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- 241001414989 Thysanoptera Species 0.000 title claims abstract description 36
- 239000000575 pesticide Substances 0.000 title claims abstract description 35
- 239000005931 Spirotetramat Substances 0.000 claims abstract description 28
- 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 abstract description 27
- 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 claims abstract description 24
- 239000005875 Acetamiprid Substances 0.000 claims abstract description 24
- 241001122767 Theaceae Species 0.000 claims abstract 5
- 239000000375 suspending agent Substances 0.000 claims description 9
- 239000004562 water dispersible granule Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 14
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- 241000220289 Pedunculata Species 0.000 abstract description 2
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- 238000012360 testing method Methods 0.000 description 15
- 239000003795 chemical substances by application Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 10
- 241000238631 Hexapoda Species 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- 231100000419 toxicity Toxicity 0.000 description 7
- 230000001988 toxicity Effects 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 241000607479 Yersinia pestis Species 0.000 description 5
- 230000000749 insecticidal effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 231100000674 Phytotoxicity Toxicity 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000003306 harvesting Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
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- 238000007619 statistical method Methods 0.000 description 3
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- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 2
- 208000030453 Drug-Related Side Effects and Adverse reaction Diseases 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000258937 Hemiptera Species 0.000 description 2
- 240000003553 Leptospermum scoparium Species 0.000 description 2
- 235000015459 Lycium barbarum Nutrition 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 206010070863 Toxicity to various agents Diseases 0.000 description 2
- -1 canthosis Species 0.000 description 2
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- 241000255777 Lepidoptera Species 0.000 description 1
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- 241001466030 Psylloidea Species 0.000 description 1
- 235000006468 Thea sinensis Nutrition 0.000 description 1
- 239000005941 Thiamethoxam Substances 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 239000000654 additive Substances 0.000 description 1
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- 239000003153 chemical reaction reagent Substances 0.000 description 1
- CWFOCCVIPCEQCK-UHFFFAOYSA-N chlorfenapyr Chemical compound BrC1=C(C(F)(F)F)N(COCC)C(C=2C=CC(Cl)=CC=2)=C1C#N CWFOCCVIPCEQCK-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- PGRHXDWITVMQBC-UHFFFAOYSA-N dehydroacetic acid Natural products CC(=O)C1C(=O)OC(C)=CC1=O PGRHXDWITVMQBC-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000007598 dipping method Methods 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- VBCVPMMZEGZULK-NRFANRHFSA-N indoxacarb Chemical compound C([C@@]1(OC2)C(=O)OC)C3=CC(Cl)=CC=C3C1=NN2C(=O)N(C(=O)OC)C1=CC=C(OC(F)(F)F)C=C1 VBCVPMMZEGZULK-NRFANRHFSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000002336 repolarization Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- NWWZPOKUUAIXIW-FLIBITNWSA-N thiamethoxam Chemical compound [O-][N+](=O)\N=C/1N(C)COCN\1CC1=CN=C(Cl)S1 NWWZPOKUUAIXIW-FLIBITNWSA-N 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000001018 virulence Effects 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
- A01N47/06—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom containing —O—CO—O— groups; Thio analogues 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
- A01P7/00—Arthropodicides
- A01P7/04—Insecticides
-
- 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
Abstract
The application relates to the technical field of pesticides, and discloses a pesticide for preventing and treating tea-stick thrips, which comprises acetamiprid and spirotetramat, wherein the mass ratio of the acetamiprid to the spirotetramat is 1-5: 1-6, is used for preventing and treating tea stick thrips. Compared with the prior art, the application has the advantages of good control effect, quick response, long durability, labor force reduction, cost reduction, and solving of the problem of pesticide abusing, effectively delays the repeated rising of the thrips pedunculata population of tea sticks, reduces the pesticide application times, and reduces the production investment of farmers to a certain extent.
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-stick thrips in a tea area.
Background
Thrips tea is also called tea thrips and acanthosis tea thrips. Tea-stick thrips are loved to move and eat on the leaf surfaces of tender leaves, and inhabit in tea trees, lower-layer shading positions or bud seams when sunlight is strong, adults and nymphs take the juice of the tender leaves of the tea trees absorbed by files as harm, the back surfaces of the damaged leaves are always in a strip-shaped scar shape, the front surfaces of the leaves are slightly concave-convex, the leaf colors are gradually pale and lose luster, and leaf quality is stiff and crisp when serious, so that the output and quality of the tea are affected. At present, chemical pesticides are mainly used for preventing and controlling the plant diseases, and common pesticides are chlorfenapyr, thiamethoxam, indoxacarb, bifenthrin and the like. With the long-term repeated use of pesticides, the resistance of pests to conventional pesticides is higher and higher, and the prevention effect is poorer and worse.
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 controlling tea-stick thrips, which can reduce labor force and cost and solve the problem of pesticide abuse so as to overcome the defects in the prior art.
In order to solve the technical problems, the embodiment of the application provides a pesticide for preventing and treating tea rod thrips, which comprises acetamiprid and spirotetramat, wherein the mass ratio of the acetamiprid to the spirotetramat is 1-5: 1-6, is used for preventing and treating tea stick thrips.
The acetamiprid water dispersible granule comprises 25% of acetamiprid by mass.
The spirotetramat is a spirotetramat suspending agent with the mass percentage content of 240 g/L.
The mass ratio of acetamiprid to spirotetramat is 2:5.
acetamiprid is a novel pyridine pesticide, has stomach toxicity, contact killing and strong penetrating effect, and shows quick-acting insecticidal power and long residual effect period. The pesticide with certain mite killing activity has the action mode of systemic pesticide of soil and branches and leaves, and is generally used for preventing and controlling aphids, plant hoppers, thrips, partial lepidoptera pests and the like of rice, especially vegetables and fruit trees.
The spirotetramat is a tetronic acid compound and has double inward suction conductivity, and the compound can move up and down in the whole plant body and reach the leaves and the roots, so that the spirotetramat plays a role in protecting, and the unique suction performance can protect nascent stems, leaves and the roots and prevent eggs and larvae of pests from growing. The insecticidal spectrum is wider, and the insecticidal composition has good prevention effect on aphids, thrips, red spiders, psyllids, whiteflies and scale insects, has long lasting period, can control second-generation pests by once administration, and has lasting period of about two months.
Compared with the prior art, the application has the advantages of good control effect, quick response, long durability, labor force reduction, cost reduction, and solving of the problem of pesticide abusing, effectively delays the repeated rising of the thrips pedunculata population of tea sticks, reduces the pesticide application times, and reduces the production investment of farmers to a certain extent.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
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, it will be appreciated by those of ordinary skill in the art that in the embodiments of the present application, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the technical solution claimed in 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 indoor toxicity determination
S1, preparation of medicament
The selected medicaments are as follows:
single dose: acetamiprid water dispersible granule (purchased from the Hailier pharmaceutical industry group Co., ltd.) with the mass percentage content of 25% and spirotetramat suspending agent (purchased from Bayer crop science Co.) with the mass percentage content of 240 g/L.
And (3) compounding an insecticide: the mass ratio of acetamiprid to spirotetramat is 1:6, 2:5, 3:4, 4:3, 5:2 and 6:1 respectively.
The single agent and the compound pesticide are diluted to 1000mg/L mother liquor for standby, and each single agent and each group of mixed agent are respectively diluted to 6 concentration gradients.
S2, a treatment method comprises the following steps:
the poisoning activity of the test agent on the tea-stick thrips adults is determined by adopting a leaf dipping method. Diluting each test reagent into 5 series of medicinal liquids with concentration gradient by pure water, immersing clean insect-free tea in each medicinal liquid, taking out after 30s, placing in a plate with moisture-preserving filter paper, and naturally airing the back face upwards for later use. Each mass concentration of the liquid medicine is 1 treatment, 3 times of repetition are set for each treatment, and pure water is used as a blank control. And (3) inoculating 20 adult tea-stick thrips to the back of each treated tea through a soft brush, sealing the dish with a preservative film, and perforating the preservative film with a 0-size insect needle.
S3, feeding observation and result inspection
Placing the culture dish containing tea rod thrips in a climatic chamber with temperature (25+ -1) deg.C and humidity (60+ -5)%, and illuminating for 14 hr every day for feeding and observing.
Taking out after 24 hours, observing and counting the survival condition of the tea-stick thrips adults treated by different test agents. When the insects are observed, the insects are lightly touched by a soft brush, and the death of the thrips is judged if the insects are motionless for 2 times, and the number of living insects and the death number are recorded respectively.
S4, data statistics
The insecticidal activity of the insecticide with different proportions of 25% acetamiprid water dispersible granules and 240g/L spirotetramat suspending agent is evaluated by adopting a co-toxicity coefficient (CTC) method.
Toxicity Index (TI) = (LC of standard agent) 50 LC of test agent 50 )×100
Actual Toxicity Index (ATI) = (standard)LC of agent 50 LC of the mixture 50 )×100
Theoretical toxicity index of mixture (TTI) = [ percent (%) of ti×a agent of a agent in mixture + [ percent (%) of ti×b agent of B agent in mixture ]
Co-toxicity coefficient (CTC) = [ actual drug toxicity index (ATI) ]/[ theoretical drug toxicity index (TTI) ]xl 00
According to the regulations of pesticide certification institute of the Ministry of agriculture, the judgment standard of the synergistic effect of the formula of the mixture is as follows: a co-toxicity coefficient greater than 120 is a synergistic effect; the co-toxicity coefficient is 80-120, which is additive; the co-toxicity coefficient is less than 80 and is antagonistic.
Statistical analysis is carried out on different proportions, the indoor biological measurement adopts an SPSS 20.0 statistical analysis system to carry out statistical analysis, a virulence regression equation of the medicament is solved, and LC is calculated 50 And correlation coefficient.
S5, results and analysis
As shown in the indoor toxicity measurement results in Table 1, the acetamiprid water dispersible granule with the mass percentage of 25% and the spirotetramat suspending agent with the mass percentage of 240g/L have certain control effects on tea rod thrips, and the acetamiprid water dispersible granule with the mass percentage of 25% and the spirotetramat suspending agent with the mass percentage of 240g/L have the mass ratio of 1-5: 1-6 are expressed as synergy, wherein 2:5 shows the most remarkable synergy.
Table 1 results of indoor toxicity measurements of acetamiprid-spirotetramat combinations on tea rod thrips
Example 2-prevention of the field of tea thrips by acetamiprid and Spirotetramat composition
T1 materials and methods
The test agents were:
acetamiprid water dispersible granule with mass percentage of 25%Hailier Pharmaceutical Group Co., Ltd.);
The mass percentage is 240 g/liter spirotetramat suspending agent (Bayer crop science company).
T2 test design
25% acetamiprid water dispersible granule (2 g/mu). 240g/L spirotetramat suspending agent (5 mL/mu) (effective component ratio 5:12), control medicament 25% acetamiprid water dispersible granule 4 g/mu, 240g/L spirotetramat suspending agent 10 mL/mu and blank control (clear water treatment), 4 treatments are total, 16 cells are counted for each treatment for 4 times of repetition, 50m of each cell 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.
T3 test method
The test is carried out in the three-in-one village of sand town in Qinglong county of Guizhou province, the test land is flat, the fertility is moderate, the irrigation is convenient, and the tea-stick thrips in recent years are in moderate weight. The tested tea variety 'Qian tea No. 8', the tea plant growth vigor and the management level are consistent, and no other pesticide is used in the test period. Spraying with WBD-18 knapsack electric sprayer, and dispensing in 4 cells. Once in 2022, 6 and 30 days, the application is carried out on a sunny day with no abnormal weather, the air temperature is 19-27 ℃ and the average temperature is 23 ℃.
T4 investigation method
The residual insect numbers are respectively investigated in the cardinal number before the application and 1d, 3d and 7d after the application, a parallel jump method is adopted for each cell, the number of live insects on the front side and the back side of 20 leaves is randomly investigated, records are made, the reduction rate and the prevention and control effect of the insect population of each treatment are calculated, and the difference significance test is carried out on the test results by a Duncan new repolarization difference method.
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.
T5. results and analysis
As can be seen from the control effect of the tested pesticides on tea-stick thrips shown in Table 2, the acetamiprid and spirotetramat mixed composition has good control effect on thrips, the quick acting property and the lasting effect of the composition are obviously better than those of a single dose, and the control effect after 1 day of the composition is over 90 percent. In the test process, no phytotoxicity phenomenon occurs, and the method is safe for crops.
TABLE 2 control effect of tested pesticides on tea-stick thrips
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.
The final residual amount measurement results of the tested pesticides shown in Table 3 show that the residual amount of the spirotetramat detected in the tea leaves in the harvest period is 0.002mg/kg, which is far lower than the maximum residual amount of the spirotetramat in all foods specified in China, and the existence of the tested pesticide residues is not detected in the soil in the harvest period. The novel formula for preventing and treating tea-stick thrips has good development and utilization values.
TABLE 3 final residual amount of pesticide tested
Note that: ND indicates undetected.
From the above, the application relates to a preferable formula for preventing and treating tea-stick thrips, which consists of acetamiprid and spirotetramat. According to the test results, the application has better control effect on tea-stick thrips, and the 1d control effect after the medicine is about 90%; the formula is safe to the environment, has very low or 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 controlling tea rod thrips is characterized by comprising acetamiprid and spirotetramat, wherein the mass ratio of the acetamiprid to the spirotetramat is 1-5: 1-6, is used for preventing and treating tea stick thrips.
2. The pesticide for preventing and controlling tea-stick thrips according to claim 1, wherein the acetamiprid is acetamiprid water dispersible granules with the mass percentage content of 25%.
3. The pesticide for preventing and controlling tea rod thrips according to claim 1, wherein the spirotetramat is a spirotetramat suspending agent with the mass percentage content of 240 g/L.
4. The pesticide for preventing and controlling tea-stick thrips according to claim 1, wherein the mass ratio of acetamiprid to spirotetramat is 2:5.
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Cited By (1)
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CN117825639A (en) * | 2024-03-01 | 2024-04-05 | 山东永卫生物科技有限公司 | Screening method of synergistic auxiliary agent of thrips prevention and treatment medicine |
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CN117825639A (en) * | 2024-03-01 | 2024-04-05 | 山东永卫生物科技有限公司 | Screening method of synergistic auxiliary agent of thrips prevention and treatment medicine |
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