CN105165912A - Sterilization composition containing thiophanate methyl and hyptis rhomboidea extractive - Google Patents
Sterilization composition containing thiophanate methyl and hyptis rhomboidea extractive Download PDFInfo
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- CN105165912A CN105165912A CN201510529656.7A CN201510529656A CN105165912A CN 105165912 A CN105165912 A CN 105165912A CN 201510529656 A CN201510529656 A CN 201510529656A CN 105165912 A CN105165912 A CN 105165912A
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Abstract
A sterilization composition containing thiophanate methyl and hyptis rhomboidea extractive is disclosed and belongs to the technical field of sterilization agents. The sterilization composition contains thiophanate methyl and hyptis rhomboidea extractive with the weight ratio of 1:10-10:1. The hyptis rhomboidea extractive is obtained according to the following steps: drying hyptis rhomboidea, crushing to form a coarse powder, adding ethanol with the amount being 6-10 times by weight of the hyptis rhomboidea coarse powder, performing ultrasonic extraction for 30-50 min for 2-3 times, performing pumping filtration, discarding filter residue, merging the extraction liquids, performing flash-evaporation concentration on the obtained extraction liquid under the condition of 60-70 DEG C by using a vacuum film concentration device to obtain a condensate accounting for 1/10-1/4 by volume of the original extraction liquid, and performing spray drying or vacuum drying on the condensate to form a dry powder, so as to obtain the composition. By compounding the hyptis rhomboidea extractive and thiophanate methyl, the sterilization composition possesses substantial control efficacy on rice false smut and rice ear rot, and the control efficacies both reach 90% or more.
Description
Technical field
The invention belongs to bactericide technical field, be specifically related to a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob.
Background technology
The control of crop pest accounts for very large proportion in agriculture production cost, and along with the development bulk sterilization agent of science and technology continues to bring out, and drug effect is more and more higher.In actual use procedure, a lot of bactericide selectivity is strong, and target scope is narrower, is difficult to meet the requirement in control, needs various medicaments used in combination.But combined use of pesticides technology content is higher, peasant oneself is mixed often produces drug effect decline, poisoning generation.Therefore, be necessary composite effective bactericide to make built agent, reach object that is simple, high-efficiency prevention and control disease.
Thiophanate-methyl (Thiophanate-Methyl), has another name called thiophanate methyl, and its chemical name is 1,2-bis-(3-carbometoxyl-2-ghiourea group) benzene, and structural formula is:
，
It is a kind of efficient, wide spectrum, low toxicity, and low-residual, systemic fungicide, can prevent and treat various crop disease, has protection and treatment two kinds of effects.Its mechanism of action is that this medicine sprays in plant surface and after being absorbed by plants, in plant corpus, is converted into carbendazim through a series of biochemical reaction, the cell division of interference bacterium, makes germ can not normal growth thus reach bactericidal effect.In it, absorption is better than carbendazim, and residue problem is also a headachy difficult problem.Due to the benzimidazole germicide that itself and another kind extensively use, carbendazim, has mutual pesticide resistance, and pathogen pesticide resistance has badly influenced its drug effect, cause consumption increasing, and drug effect is more and more lower.Thiophanate-methyl is mould to corruption, the lower fungus poor effect such as head mold and Mucor, more not obvious to bacteriostasis.
Summary of the invention
For prior art Problems existing, the object of the invention is to design provides a kind of containing the technical scheme of thiophanate-methyl with the bactericidal composition of the careless extract of lob.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that containing active ingredient thiophanate-methyl and the careless extract of lob, the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:10 ~ 10:1, described lob grass extract is obtained by following steps: careless for lob crushed after being dried is become meal, add the careless meal weight 6-10 of lob EtOH Sonicate doubly to extract 2-3 time, each 30-50 minute, suction filtration, discard filter residue, after merging extract, the extract obtained adopts Reduced Pressure Concentration Device to carry out the 1/10-1/14 of flash concentration to original volume under 60-70 DEG C of condition, concentrate is carried out spraying dry or carries out vacuum drying becoming dry powder, obtain careless extract of lobbing.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:9 ~ 9:1.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:4 ~ 1:1.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:1 ~ 9:1.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:4 ~ 2:3.
Described is a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 3:2 ~ 4:1.
Above-mentioned a kind of bactericidal composition containing thiophanate-methyl and the careless extract of lob, by lobbing careless extract and thiophanate-methyl is composite has remarkable preventive effect to rice green smut and Rice Panicle maize ear rot, all can reach more than 90%.
Embodiment
The present invention is further illustrated below in conjunction with test example.
Embodiment 1
Get thiophanate methyl raw pesticide and the careless extract of lob, join sterile water and add a small amount of surfactant, after ultrasonic process, being mixed with medicament respectively.Arrange according to mixture object and organize dosages distribution, 1:9,1:4,3:7,2:3,1:1,3:2,7:3,4:1,9:1 more, each proportioning is the mass ratio of two kinds of medicament active ingredients.
Careless extract of wherein lobbing is obtained by following steps: careless for lob crushed after being dried is become meal, add the careless meal weight 6-10 of lob EtOH Sonicate doubly to extract 2-3 time, each 30-50 minute, suction filtration, discard filter residue, after merging extract, the extract obtained adopts Reduced Pressure Concentration Device to carry out the 1/10-1/14 of flash concentration to original volume under 60-70 DEG C of condition, concentrate is carried out spraying dry or carry out vacuum drying becoming dry powder, obtain careless extract of lobbing.
Test example 1: containing the bactericidal composition seed soaking controlling experiment to rice green smut of thiophanate-methyl with the careless extract of lob
1.1 test kinds
Late-maturing three is excellent No. 12 of Indica-Japonica Hybrid Rice river in Zhejiang Province.
1.2 controlling object
Rice green smut and Rice Panicle maize ear rot.
1.3 chemicals treatment arrange (active ingredient is all 20 grams/acre)
(process 1) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 1:9;
(process 2) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 1:4;
(process 3) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 3:7;
(process 4) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 2:3;
(process 5) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 1:1;
(process 6) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 3:2;
(process 7) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 7:3;
(process 8) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 4:3;
(process 9) 20% thiophanate-methyl and lob composite 100 grams/acre of careless extract 9:1;
(process 10) 20% thiophanate-methyl 100 grams/acre (positive medicament contrast).
Each process repetition 4 times, arranges 24 each communities altogether, 30 square metres, every community.
1.4 medicament usings method
Be watered 45,000 grams/acre, paddy rice cut the last week, spray.
1.5 investigation and investigation methods
After medicine 35 days, 5 points were selected in every community, often some investigation 200 fringes, by the incidence of corresponding grade scale investigation rice green smut and Rice Panicle maize ear rot.
The grade scale of rice green smut is as shown in the table
The grade scale of Rice Panicle maize ear rot is as shown in the table:
Computing formula and statistical analysis:
Deng Kenshi new multipole difference (DMRT) method is adopted to carry out statistical analysis to test data and compare.
3.6 result of the test
Thiophanate-methyl and the careless extract of lob is composite prevents and treats test of pesticide effectiveness result to rice green smut and Rice Panicle maize ear rot, as shown in table 1:
Table 1 thiophanate-methyl is composite to rice green smut and Rice Panicle maize ear rot field efficacy knot with the careless extract of lob
From to the preventive effect of rice green smut, when effective ingredient consumption is identical, the preventive effect of process 1-9 is significantly higher than process 10, thiophanate-methyl and the composite control efficiency excellence of the careless extract of lob on the field efficacy of rice green smut is described, shows very strong synergistic effect simultaneously.
The preventive effect to Rice Panicle maize ear rot, when effective ingredient consumption is identical, the preventive effect of process 1-9 is significantly higher than process 10, thiophanate-methyl and the composite control efficiency excellence of the careless extract of lob on the field efficacy of Rice Panicle maize ear rot is described, shows very strong synergistic effect simultaneously.
Claims (6)
1. one kind contains the bactericidal composition of thiophanate-methyl and the careless extract of lob, it is characterized in that containing active ingredient thiophanate-methyl and the careless extract of lob, the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:10 ~ 10:1, described lob grass extract is obtained by following steps: careless for lob crushed after being dried is become meal, add the careless meal weight 6-10 of lob EtOH Sonicate doubly to extract 2-3 time, each 30-50 minute, suction filtration, discard filter residue, after merging extract, the extract obtained adopts Reduced Pressure Concentration Device to carry out the 1/10-1/14 of flash concentration to original volume under 60-70 DEG C of condition, concentrate is carried out spraying dry or carries out vacuum drying becoming dry powder, obtain careless extract of lobbing.
2. a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob as claimed in claim 1, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:9 ~ 9:1.
3. a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob as claimed in claim 1, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:4 ~ 1:1.
4. a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob as claimed in claim 1, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:1 ~ 9:1.
5. a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob as claimed in claim 1, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 1:4 ~ 2:3.
6. a kind of containing the bactericidal composition of thiophanate-methyl with the careless extract of lob as claimed in claim 1, it is characterized in that the weight ratio of described thiophanate-methyl and the careless extract of lob is 3:2 ~ 4:1.
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| CN105165912B CN105165912B (en) | 2018-02-27 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104705354A (en) * | 2015-03-24 | 2015-06-17 | 浙江农林大学暨阳学院 | Plant source insecticide for gardens |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104705354A (en) * | 2015-03-24 | 2015-06-17 | 浙江农林大学暨阳学院 | Plant source insecticide for gardens |
Non-Patent Citations (2)
| Title |
|---|
| 唐露等: "吊球草的化学成分及抑菌活性研究", 《中国中药杂志》 * |
| 石明旺等: "《新编常用农药安全使用指南》", 31 December 2010, 化学工业出版社 * |
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Effective date of registration: 20191125 Address after: 215000 Building 1, No. 296, Longxi Road, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: SUZHOU SHIHAO BUILDING MATERIAL NEW TECHNOLOGY ENGINEERING Co.,Ltd. Address before: 313000, No. 25, peach blossom village, South Town, Huzhou Town, Nanxun District, Zhejiang Patentee before: HUZHOU XULONG BIOCHEMISTRY Co.,Ltd. |
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