CN104119129A - Compound pesticide containing copper hydroxide and application of compound pesticide - Google Patents
Compound pesticide containing copper hydroxide and application of compound pesticide Download PDFInfo
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- CN104119129A CN104119129A CN201410259884.2A CN201410259884A CN104119129A CN 104119129 A CN104119129 A CN 104119129A CN 201410259884 A CN201410259884 A CN 201410259884A CN 104119129 A CN104119129 A CN 104119129A
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- copper hydroxide
- prochloraz
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Abstract
The invention relates to a compound pesticide containing copper hydroxide and an application of the compound pesticide and belongs to the technical field of compound pesticides. The compound pesticide comprises an effective component A and an effective component B, wherein the effective component A is copper hydroxide and the effective component B is prochloraz or prochloraz manganese salt and the weight ratio of the effective component A to the effective component B is 1 to 10-10 to 1. The mechanisms of action of copper hydroxide and prochloraz (manganese salt) are different and the copper hydroxide and prochloraz (manganese salt) are compound to generate a synergic effect, so that the risk of generation of drug resistance of pathogenic bacteria is reduced. By using the compound preparation of the copper hydroxide and prochloraz (manganese salt) to soak seeds, the defect that copper hydroxide has a poor effect on fungi pathogens and prochloraz (manganese salt) has a poor preventive effect on bacterial pathogens can be avoided, and seed-borne diseases can be prevented. In the early heading period of rice, two microelements, namely copper and manganese can be introduced to the spray to satisfy the requirements of rice on the two microelements. Spike diseases can be prevented and treated by application at one time, so that the labor and material resources are greatly saved.
Description
Technical field
The invention belongs to technical field of compounded pesticide, be specifically related to a kind of Recompounded pesticide and application thereof containing copper hydroxide.
Background technology
Paddy bacterial glume blight and Rice Panicle maize ear rot are the fringe portion diseases that China in recent years newly occurs or rises, and all cause that Seed-Setting Percentage in Rice reduces and grain variable color.There is period all in the Rice Growing later stage in these two kinds of diseases, once cause a large amount of underproduction of paddy rice, to peasant, brings massive losses.The bacterium and the mycetogenetic toxin that cause these two kinds of diseases can pollute rice, and edible meeting harm humans is healthy.The rice deformity of catching an illness in addition, color be yellow to black not etc., outward appearance and quality all reduce.
In China, paddy bacterial glume blight and the cross infection often of Rice Panicle maize ear rot.The pathogenic bacteria of paddy bacterial glume blight is bacterium grain husk shell Burkholderia (Burkholderia glumae), Rice Panicle maize ear rot is caused by multiple pathogenic fungi Combined Infection, wherein fusarium prolifertum (Fusarium proliferatum) is main source of infection, and Australian Bipolaris sacchari (Bipolaris australiensis), lunata (Curvularia lunata) and alternaria bacterium (Alternaria tenuis) are also the main pathogenic fungi.
Copper hydroxide (Cupric hydroxide) is Inorganic Copper compound, is protective fungicide.Its germicidal action mainly, by cupric ion, has special efficacy to bacterial pathogen.The spore that cupric ion is sprouted absorbs, and when reaching finite concentration, just can stop spore germination, to fungi limited effect only.
Prochloraz (Prochloraz) is a kind of wide-spectrum bactericide, and chemical name is N-propyl group-N-[2-(2,4,6-Trichlorophenoxy) ethyl]-imidazoles-1-methane amide.Its mechanism of action is to work by suppressing the biosynthesizing of sterol, and the disease that various crop is caused by ascomycetes and imperfect fungi has obvious preventive effect.Prochloraz-manganese chloride complex is the complex compound that 4 prochlorazs of Manganous chloride tetrahydrate complexing form prochloraz, and bactericidal active ingredient is still prochloraz, and its mechanism of action is identical with prochloraz, and preventive effect and security are better.Prochloraz (manganese salt) has prevention protection treatment and waits multiple action, and fungus disease is had to special efficacy.
Summary of the invention
The problem existing for prior art, the object of the invention is to design provides a kind of containing the Recompounded pesticide of copper hydroxide and the technical scheme of application thereof.
Described a kind of Recompounded pesticide containing copper hydroxide, it is characterized in that containing effective constituents A and effective constituent B, described effective constituents A is copper hydroxide, and described effective constituent B is prochloraz or prochloraz-manganese chloride complex, and the weight ratio of described effective constituents A and effective constituent B is 1:10～10:1.
Described a kind of Recompounded pesticide containing copper hydroxide, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:9～9:1.
Described a kind of Recompounded pesticide containing copper hydroxide, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:4～1:1.
Described a kind of Recompounded pesticide containing copper hydroxide, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:1～9:1.
Described a kind of Recompounded pesticide containing copper hydroxide, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:4～2:3.
Described a kind of Recompounded pesticide containing copper hydroxide, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 3:2～4:1.
The application of described a kind of Recompounded pesticide containing copper hydroxide in control paddy rice seed-borne disease.
The application of described a kind of Recompounded pesticide containing copper hydroxide in control paddy rice seed-borne disease, it is characterized in that described paddy rice seed-borne disease is rice bakanae disease, Rice Panicle maize ear rot, rice blast, bacterial disease is paddy bacterial glume blight, rice stripe leaf spot, paddy bacterial brown spot.
In the present invention, copper hydroxide is different with the mechanism of action of prochloraz (manganese salt), and the two is composite can produce synergism, and reduces the risk of the drug-fast generation of pathogenic bacteria.Utilize the built agent seed soaking of the two, can avoid copper hydroxide to Mycophyta pathogen poor effect and prochloraz (manganese salt) shortcoming to the anti-heterodyne of bacterium class pathogen, can prevent the generation of seed-borne disease.Paddy rice cut phase spray medicine can be introduced copper, two kinds of trace elements of manganese, meets paddy rice to these two kinds of micro-demands.And a drug can be prevented and treated multiple fringe portion disease, has greatly saved man power and material.
Embodiment
Below in conjunction with test example, further illustrate the present invention.
Test example 1: copper hydroxide and the prochloraz compound drug indoor virulence effect to paddy bacterial glume blight
1.1 medicament preparations
1.1.1 test medicine
The former medicine of 98% copper hydroxide is produced by Shandong Zhanhua Tianyuan Fine Chemical Co., Ltd.
97% prochloraz Yuan Yaoyou Huifeng Agricultural Chemistry Co., Ltd., Jiangsu produces.
1.1.2 compounding method for medicament
The former medicine of copper hydroxide and prochloraz is all used a small amount of acetone solution, utilizes sterilized water to be diluted to 32mg/ml mother liquor.According to the object that is mixed, many group medicament proportionings are set, 1:9,3:7,1:1,7:3,9:1, each proportioning is the mass ratio of two kinds of medicament effective constituents.
1.2 test strain
Paddy bacterial glume blight pathogenic bacteria bacterial strain: clever shell Burkholderia (Burkholderia glumae)
1.3 test method
The composite Toxicity Determination to paddy bacterial glume blight of copper hydroxide and prochloraz adopts the method for plate culture count to carry out.
Under aseptic technique, according to test, process the sterilising medium melting in advance quantitative (being generally 60ml) is added in aseptic Erlenmeyer flask, from lower concentration to high density, quantitatively draw successively liquid, add respectively in above-mentioned Erlenmeyer flask, fully shake up.Then equivalent is poured in the culture dish that 3 above diameters are 9cm, and the pastille of making respective concentration is dull and stereotyped.Test is not established and is made blank containing the processing of medicament, and each processing is no less than 3 repetitions.
The pathogenic bacteria that substratum has been supported is diluted to sterilized water the bacteria suspension that thalline is 3000/mL under aseptic condition, gets 0.2mL and is added to pastille planar surface, and coating evenly.In 28 ℃ of constant incubators, cultivate 72h, record the bacterium colony number on flat board.
According to investigation result, utilize formula 1 and formula 2 to calculate each concentration for the treatment of to the growth inhibition ratio I for examination target bacterium, unit is percentage (%), calculation result retains 2 significant digits.
formula (1)
In formula:
-chemicals treatment bacterium colony suppresses number;
-blank bacterium colony number;
-for examination flat-plate bacterial colony number.
formula (2)
In formula:
I-colony growth inhibiting rate;
-chemicals treatment bacterium colony suppresses number;
-blank bacterium colony number.
Utilize Tang Qi justice DPS data analysis software, according to each drug concentration logarithmic value and corresponding colony growth inhibiting rate probability value, do regression analysis, calculate the EC of each medicament
50.
1.4 composite effect assessments
At each single dose and built agent EC
50on the basis of value, according to Wadley method, calculate each built agent coefficient of synergism (SR), utilize SR value to evaluate composite effect.SR >=1.5 represent to have synergism; SR≤0.5 represents to have antagonistic action; 0.5<SR<1.5 is summation action.
Coefficient of synergism (SR) presses formula (3) and formula (4) calculates:
formula (3)
In formula:
the theoretical value of-mixture, unit is milligrams per liter (mg/L);
the percentage composition of A in-mixture, unit is percentage (%);
the percentage composition of B in-mixture, unit is percentage (%);
the theoretical value of A in-mixture, unit is milligrams per liter (mg/L);
the theoretical value of B in-mixture, unit is milligrams per liter (mg/L).
formula (4)
In formula:
the coefficient of synergism of-mixture;
-mixture theoretical value, unit is milligrams per liter (mg/L);
-mixture measured value, unit is milligrams per liter (mg/L).
1.5 test-results
According to the method described above, measure copper hydroxide and prochloraz single dose and the compound drug restraining effect to paddy bacterial glume blight pathogenic bacteria bacterial strain grain husk shell Burkholderia (Burkholderia glumae) growth, and calculate accordingly each medicament to its growth inhibiting EC
50value, obtains respectively each built agent SR value, and result is as shown in table 1.
Table 1 copper hydroxide and prochloraz are to clever shell Burkholderia indoor virulence effect and each proportioning coefficient of synergism
| Reagent agent | Actual EC 50（ppm） | Theoretical EC 50(ppm) | Coefficient of synergism |
| Copper hydroxide | 159.5626 | / | / |
| Prochloraz | 665.5201 | / | / |
| Hydrogen miaow proportioning 1:9 | 551.6156 | 505.3057 | 0.9160 |
| Hydrogen miaow proportioning 3:7 | 61.7586 | 341.0874 | 5.5229 |
| Hydrogen miaow proportioning 1:1 | 57.8573 | 257.4097 | 4.4490 |
| Hydrogen miaow proportioning 7:3 | 31.9493 | 206.7070 | 6.4698 |
| Hydrogen miaow proportioning 9:1 | 119.7016 | 172.7116 | 1.4429 |
As can be seen from Table 1, copper hydroxide and prochloraz are composite is suppressing to show synergy or summation action on indoor virulence to paddy bacterial glume blight pathogenic bacteria bacterial strain.Wherein, hydrogen miaow proportioning 3:7,1:1, and the SR value of 7:3 all surpassed 1.5, illustrates that these proportionings of copper hydroxide and prochloraz show obvious synergism on to the virulence of clever shell Burkholderia, the proportioning of 1:9 and 9:1 is summation action.
Test example 2: copper hydroxide and the field efficacy of prochloraz compound drug to paddy bacterial glume blight
In order to verify copper hydroxide and the prevention effect of prochloraz compound drug to paddy bacterial glume blight, in June, 2013～November, at China Paddy Rice Inst's Fuyang Experimental Base, implement and completed copper hydroxide and the field control effectiveness test of prochloraz compound drug different ingredients to the prevention and control of paddy bacterial glume blight.
2.1 test kinds: paddy rice conventional japonica rice kind show water 09.
2.2 arable farmings and envrionment conditions:
For examination paddy rice, be conventional japonica rice kind " elegant water 09 ", adopt watery ricenursery, sowing on June 16,22 day length of time rice seedlings grow (July 8) manually transplants, seeding row spacing specification 18.0 * 20.0cm, every clump of 3-4 offspring.
Every community area is 30 square metres, the artificial ditching isolation in minizone, and mechanical irrigation and drainage, very convenient.
For promoting disease to occur, pour water early stage for a long time in field, and on the basis of conventional fertilizer application, Increasing N fertilizer applies fertilizer at every turn.Base manure: per hectare composite fertilizer " bright spring day " 15%NPK(15%N, 15%P, 15%K) 375 kilograms, after transplanting, 7d executes 165.0(112.5+ and enriches 52.5) kg urea/hectare+weedicide (transplanting once clean), after transplanting, 20d imposes 138.75(93.75+ and enriches 45.0) kg urea+112.5 kilogram K fertilizer/hectare, booting is executed ear manuer 112.5(75+ and enrich 37.5 later stage-heading stage) kg/ha nitrogenous fertilizer, promote morbidity.
2.3 test medicines are processed (respectively process effective ingredient consumption and be all 25 grams/acre) are set:
Composite 63 grams/acre of (1) 46% copper hydroxide and 25% prochloraz 7:3;
Composite 70 grams/acre of (2) 46% copper hydroxides and 25% prochloraz 1:1;
Composite 80 grams/acre of (3) 46% copper hydroxides and 25% prochloraz 3:7;
(4) 46% 55 grams/acre of copper hydroxide water dispersible granules (positive medicament contrast);
(5) 25% 100 grams/acre of prochloraz missible oil (positive medicament contrast);
(6) clear water contrast;
Each is processed and repeats 4 times, 24Ge community is set altogether, 30 square metres of every communities.
2.4 medicament using method
Be watered 40,000 grams/acre, in the paddy rice cut phase, spraying.
2.5 investigation and investigation methods
The parallel great-jump-forward in every community is got 50 clumps, calculates output and preventive effect.
Output statistics method:
Each community is hand harvest respectively, community thresing machine threshing, and airing is to water ratio below 20%, and selection by winnowing is rejected empty flat grain, weighs, and grain moisture tacheometer is measured water ratio, utilizes following formula to calculate output.
Output (thousand grams/acre)=(667/ community area (square metre)) the paid paddy weight in * community (kilogram) * ((the 1-grain actual measurement percentage of moisture)/(the 1-grain standard dry weight percentage of moisture))
Note: grain standard moisture weight percentage long-grained nonglutinous rice=13.5%, japonica rice=14.5%, it is that japonica rice variety is according to 14.5% calculating that this test adopts elegant water 09.
Preventive effect method of calculation are as follows:
Adopt the new multipole of Deng Kenshi poor (DMRT) method to carry out statistical study and comparison to testing data.
2.6 test-results
Test-results is as shown in the table:
From test-results, each is processed has certain prevention effect to paddy bacterial glume blight, three complex treatments investigating, process 1(46% copper hydroxide and 25% prochloraz 7:3 composite), process 2(46% copper hydroxide and 25% prochloraz 5:5 composite) and processing 3(46% copper hydroxide and 25% prochloraz 3:7 composite) preventive effect of bacillary glume blight has been reached respectively to 82.75%, 84.83% and 88.69%, be better than significantly positive control and process 4(46% copper hydroxide water dispersible granules) 77.32% and process 5(25% prochloraz missible oil) 71.37%.Explanation thus, copper hydroxide and prochloraz are composite to showing significant synergism in the preventive effect of paddy bacterial glume blight.
In this test example, copper hydroxide and prochloraz adopt other proportioning ratio, as 10:1,8:1,5:1,4:1,2:1,2:3,1:2,1:5,1:8 or 1:10 carry out as the test of test example 2, the Recompounded pesticide of last above-mentioned different proportional quantities all can reach more than 80% Rice Panicle maize ear rot prevention effect, also shows synergism.
Claims (8)
1. the Recompounded pesticide containing copper hydroxide, it is characterized in that containing effective constituents A and effective constituent B, described effective constituents A is copper hydroxide, and described effective constituent B is prochloraz or prochloraz-manganese chloride complex, and the weight ratio of described effective constituents A and effective constituent B is 1:10～10:1.
2. a kind of Recompounded pesticide containing copper hydroxide as claimed in claim 1, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:9～9:1.
3. a kind of Recompounded pesticide containing copper hydroxide as claimed in claim 1, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:4～1:1.
4. a kind of Recompounded pesticide containing copper hydroxide as claimed in claim 1, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:1～9:1.
5. a kind of Recompounded pesticide containing copper hydroxide as claimed in claim 1, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 1:4～2:3.
6. a kind of Recompounded pesticide containing copper hydroxide as claimed in claim 1, the weight ratio that it is characterized in that described effective constituents A and effective constituent B is 3:2～4:1.
7. as the application of any Recompounded pesticide containing copper hydroxide in control paddy rice seed-borne disease and paddy bacterial disease in claim 1-6.
8. application as claimed in claim 7, is characterized in that described paddy rice seed-borne disease is rice bakanae disease, Rice Panicle maize ear rot, rice blast, and bacterial disease is paddy bacterial glume blight, rice stripe leaf spot, paddy bacterial brown spot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410259884.2A CN104119129A (en) | 2014-06-12 | 2014-06-12 | Compound pesticide containing copper hydroxide and application of compound pesticide |
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| CN201410259884.2A CN104119129A (en) | 2014-06-12 | 2014-06-12 | Compound pesticide containing copper hydroxide and application of compound pesticide |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04264010A (en) * | 1991-02-18 | 1992-09-18 | Kureha Chem Ind Co Ltd | Disinfectant of seed |
| JPH05238911A (en) * | 1992-02-27 | 1993-09-17 | Kumiai Chem Ind Co Ltd | Fungicide for seed rice |
| CN101107931A (en) * | 2007-07-11 | 2008-01-23 | 湖南万家丰科技有限公司 | Composition containing prochloraz-manganese chloride complex and copper fungicide |
| CN101156597A (en) * | 2007-09-19 | 2008-04-09 | 湖南万家丰科技有限公司 | A multipurpose bactericial composition for farm crop |
| CN103371184A (en) * | 2013-06-27 | 2013-10-30 | 王学权 | Fungicidal composition containing prochloraz manganese complex |
-
2014
- 2014-06-12 CN CN201410259884.2A patent/CN104119129A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04264010A (en) * | 1991-02-18 | 1992-09-18 | Kureha Chem Ind Co Ltd | Disinfectant of seed |
| JPH05238911A (en) * | 1992-02-27 | 1993-09-17 | Kumiai Chem Ind Co Ltd | Fungicide for seed rice |
| CN101107931A (en) * | 2007-07-11 | 2008-01-23 | 湖南万家丰科技有限公司 | Composition containing prochloraz-manganese chloride complex and copper fungicide |
| CN101156597A (en) * | 2007-09-19 | 2008-04-09 | 湖南万家丰科技有限公司 | A multipurpose bactericial composition for farm crop |
| CN103371184A (en) * | 2013-06-27 | 2013-10-30 | 王学权 | Fungicidal composition containing prochloraz manganese complex |
Non-Patent Citations (1)
| Title |
|---|
| 邓金花 等: "几种药剂复配对油菜菌核病的防治效果比较", 《江苏农业科学》 * |
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Application publication date: 20141029 |