CN103814922A - Carbendazim and copper abietate containing bactericidal composition - Google Patents
Carbendazim and copper abietate containing bactericidal composition Download PDFInfo
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Abstract
A carbendazim and copper abietate containing bactericidal composition belongs to the technical field of bactericides. The active ingredients of the carbendazim and copper abietate containing bactericidal composition are carbendazim and copper abietate, and the weight ratio of carbendazim to copper abietate is 1:10 to 10:1. The bactericidal composition using the carbendazim and the copper abietate for compounding has the following advantages: the carbendazim and the copper abietate are different in effect mechanism, the pesticide effect can be significantly improved by the compounding of the carbendazim and the copper abietate, the risk of production of drug resistance can be reduced, and by the compounding of the carbendazim and the copper abietate, the pesticide bactericidal spectrum can be expanded, a variety of diseases can be prevented by one time of drug application, so that the artificial and drug cost can be greatly reduced; by the compounding of the carbendazim with a good internal absorption property and the copper abietate with a bad internal absorption property, the defect of a short effect lasting period of the copper abietate can be significantly improved, and by the compounding of the carbendazim and the copper abietate, the use amount of the carbendazim can be reduced, and pesticide residues can be reduced.
Description
Technical field
The invention belongs to bactericide technical field, be specifically related to a kind of bactericidal composition containing carbendazim and copper rosinate.
Background technology
The control of crop pest accounts for very large proportion in agriculture production cost, and along with scientific and technological development bulk sterilization agent continues to bring out, and drug effect is more and more higher.In actual use procedure, a lot of bactericide selectivitys are strong, and target scope is narrower, is difficult to meet the requirement in control, need various medicaments to mix and use.But combined use of pesticides technology content is higher, peasant oneself uses with and tends to produce drug effect decline, poisoning produces.Therefore, be necessary composite effective bactericide to make built agent, to reach object simple, high-efficiency prevention and control disease.
Copper rosinate (Copper abietate), has another name called green newborn copper or dehydro copper abietate, and chemical name is 1,2,3,4,4a, the chloro-Isosorbide-5-Nitrae a-of 9,10,10a-eight dimethyl-7-(1-Methylethyl)-1-phenanthrene carboxylic acid copper, and structural formula is:
It is a kind of new copper preparation sterilization pesticide of high-efficiency low-toxicity.Copper rosinate is reacted and makes with copper sulphate by rosin acid, and the mechanism of action is the synthetic of Antifungi, bacterioprotein.Similar with most organic copper bactericide, interior absorption is poor is the large shortcoming of one.And this bactericide has special efficacy to bacterial pathogen, the lower fungus preventive effect such as, head mold mould to corruption and Mucor is better, and higher fungi is only had to limited control efficiency.
Carbendazim (Carbendazim), chemical name is: N-(2-benzimidazole base)-methyl carbamate, structural formula is
It is a kind of widely used benzimidazole germicide.The main mechanism of carbendazim is to disturb the formation of Spindle in the mitosis of bacterium, thereby affects the fission process of bacterium.Interior absorption is well the large advantage of one, but also causes a residual high difficult problem, has caused a lot of food safety affairs.Due to the long-term extensive use of carbendazim, pathogen, to its drug-fast generation, is also one of headachy difficult problem.The lower fungus poor effect such as carbendazim is mould to corruption, head mold and Mucor, more not obvious to bacteriostasis.
Summary of the invention
The problem existing for prior art, the object of the invention is to design provides a kind of technical scheme of the bactericidal composition containing carbendazim and copper rosinate.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, is characterized in that containing active ingredient carbendazim and copper rosinate, and the weight ratio of described carbendazim and copper rosinate is 1:10~10:1.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:9~9:1.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:4~1:1.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:1~9:1.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:4~2:3.
Described a kind of bactericidal composition containing carbendazim and copper rosinate, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 3:2~4:1.
The present invention has a following beneficial effect by copper rosinate and carbendazim are composite: 1, copper rosinate is different with carbendazim mechanism of action, learns from other's strong points to offset one's weaknesses, and the two is composite can significantly improve drug effect, can reduce the risk that pesticide resistance produces simultaneously; 2, the composite pesticide sterilizing spectrum that expands of copper rosinate and carbendazim, can prevent and treat multiple diseases by a drug, thereby greatly reduce artificial and reagent cost; 3, the poor copper rosinate of the carbendazim that interior absorption is good and interior absorption is composite, can significantly improve short defect of copper rosinate lasting period; 4, the two composite consumption that can reduce carbendazim, reduces residue of pesticide.
Embodiment
Further illustrate the present invention below in conjunction with test example.
Test example 1: the composite Toxicity Determination to fusarium moniliforme of copper rosinate and carbendazim
1.1 medicament preparations
1.1.1 test medicine
The former medicine of 95% copper rosinate is produced by Zhengzhou company of China Tech green science and technology Co., Ltd.
98% carbendazim active compound is produced by Anhui Huaxing Chemical Co., Ltd..
1.1.2 compounding method for medicament
Copper rosinate and carbendazim active compound, join sterile water and add a small amount of surfactant, after ultrasonic is processed, is mixed with respectively the mother liquor of 300mg/ml and 200mg/ml.According to mixture object, the loose medicament proportioning of many groups is set, resin acid copper: carbendazim=1:9,1:4,3:7,2:3,1:1,3:2,7:3,4:1,9:1, each proportioning is the mass ratio of two kinds of medicament active ingredients.
1.2 test strain
Bakanae disease of rice (Rice Bakanae Disease) bacterium:
fusarium fujikuroieM368.
1.3 test method
Indoor virulence test to fusarium moniliforme adopts mycelial growth rate method to carry out.
Under aseptic technique, process the sterilising medium melting in advance quantitative (being generally 60ml) is added in aseptic conical flask according to test, from low concentration to high concentration, quantitatively draw successively liquid, add respectively in above-mentioned conical flask, fully shake up.Then equivalent is poured in the culture dish that more than 3 diameter is 9cm, makes the pastille flat board of respective concentration.Test is established the not processing containing medicament and is made blank, and each processing is no less than 3 repetitions.
By the fusarium moniliforme of having supported (about cell age 5 days), under aseptic condition, with the sterilizing card punch of diameter 5mm, cut bacterium cake from colony edge, with inoculator, bacterium cake is connected to pastille dull and stereotyped central, mycelia faces down, and covers ware lid, puts in the incubator of preference temperature and cultivates.
According to the growing state investigation pathogen mycelial growth situation of bacterium in blank culture dish.Use kind of calliper colony diameter, unit is millimeter (mm).Each bacterium colony is used right-angled intersection method vertical survey diameter respectively once.
According to investigation result, utilize formula 1 and formula 2 to calculate each concentration for the treatment of to the mycelial growth inhibition rate for examination target bacterium, unit is percentage (%), result of calculation retains 2 significant digits.
formula (1)
In formula:
-colony diameter;
In formula:
Utilize Tang Qi justice DPS DAS, do regression analysis according to each drug concentration logarithm value and corresponding mycelial growth inhibition rate probability value, calculate inhibition growth rate and the EC50 value of each medicament.
1.4 composite effect assessments
On the basis of each single dose and built agent EC50 value, calculate each built agent coefficient of synergism (SR) according to Wadley method, utilize SR value to evaluate composite effect.SR >=1.5 represent to have synergistic effect; SR≤0.5 represents to have antagonism; 0.5<SR<1.5 is summation action.
Coefficient of synergism (SR) presses formula (3) and formula (4) calculates:
In formula:
the percentage composition of A in-mixture, unit is percentage (%);
In formula:
-mixture theoretical value, unit is milligrams per liter (mg/L);
1.5 result of the test
Copper rosinate and carbendazim single dose and each compound proportion are to fusarium moniliforme Toxicity Determination and each proportioning coefficient of synergism, as shown in table 1:
Table 1 copper rosinate and carbendazim single dose and the composite Toxicity Determination result to bakanae disease of rice
From result of the test: two single doses, copper rosinate to the inhibitory action of fusarium moniliforme a little less than, its EC
50reach 35.690.Carbendazim is stronger to the inhibitory action of fusarium moniliforme, its EC
50be 0.536.The coefficient of synergism of each proportioning, 2.94~7.23, all far above 1.5, shows strong synergistic effect.
In this test example, copper rosinate and carbendazim adopt other proportioning ratio, as 10:1,8:1,5:1,2:1,1:2,1:5,1:8 or 1:10 carry out as the test of test example 1, the bactericidal composition of last above-mentioned different proportional quantities is all stronger to the inhibitory action of fusarium moniliforme, coefficient of synergism, all higher than 1.5, shows strong synergistic effect.
Test example 2: carbendazim and copper rosinate are to Rhizoctonia solani Kuhn Toxicity Determination
2.1 medicament preparations
With 1.1 of test example 1.
2.2 test strain
Rhizoctonia solani Kuhn is a kind of important pathogen, can cause the diseases such as Achlya spp disease, rice sheath blight disease, wheat damping off.The bacterial strain that this test adopts is miliary damping-off bacteria strain
rhizoctonia solanigD118.
2.3 test method
With 1.3 of test example 1.
2.4 composite effect assessments
With 1.4 of test example 1.
2.5 result of the test
Copper rosinate and carbendazim single dose and each compound proportion are to Rhizoctonia solani Kuhn Toxicity Determination and each proportioning coefficient of synergism, as shown in table 2:
Table 2 copper rosinate and carbendazim single dose and the composite Toxicity Determination result to Rhizoctonia solani Kuhn
From experimental result: two single doses, copper rosinate to the inhibitory action of Rhizoctonia solani Kuhn a little less than, its EC
50reach 23.488.Carbendazim is stronger to the inhibitory action of Rhizoctonia solani Kuhn, its EC
50be 1.127.The coefficient of synergism of each proportioning, 3.12~6.14, all far above 1.5, all shows strong synergistic effect.
In this test example, copper rosinate and carbendazim adopt other proportioning ratio, as 10:1,8:1,5:1,2:1,1:2,1:5,1:8 or 1:10 carry out test as identical in test example 2, the bactericidal composition of last above-mentioned different proportional quantities is all stronger to the inhibitory action of Rhizoctonia solani Kuhn, coefficient of synergism, all higher than 1.5, shows strong synergistic effect.
Test example 3: the composite Toxicity Determination to Xanthomonas oryzae of copper rosinate and carbendazim
3.1 medicament preparations
With 1.1 of test example 1.
3.2 test strain
Xanthomonas oryzae strain:
xanthomonas oryzaepv
.oryzaezhe173, this bacterial strain belongs to IV group, in south China and rice district, the middle and lower reach of Yangtze River belong to dominant strain.
3.3 test method
Test is cultured to lawn and produces on suitable test tube slant medium with pathogenetic bacteria, get cultured bacterium inclined-plane, adds a certain amount of sterile saline or other suitable dilution.Under aseptic technique, gently scrape lawn surface with transfer needle, obtain bacterial suspension.Be placed in constant temperature oscillator and mix 20 minutes with the rotating speed of 120 revs/min.With stroke-physiological saline solution or other suitable dilution, bacterial suspension is diluted to blank clump count can clearly be separated, and is no less than 200., from low concentration to high concentration, draw successively liquid 0.5mL and add respectively in small test tube with pipette or pipettor, then draw the bacterial suspension 1.5mL preparing, make liquid and bacterial suspension mixed in equal amounts even.Add 100ml liquid nutrient medium, cultivate 5~6 hours, get 2ml culture fluid and add in advance after melting and be cooled to the quantitative sterilising medium (being generally 60ml) of 45 ℃, add in aseptic conical flask, fully shake up.Before medium does not solidify, pour plate, then equivalent is poured in the culture dish that more than 3 diameter is 9cm.After solidifying, be positioned in microbiological incubator, under 28 ℃ of conditions, be cultured on blank bacterium colony clear and legible.Each plate count, can detect by an unaided eye, and uses if desired lens examination, in case omit.
According to colony counting result, calculate each concentration for the treatment of to forming inhibiting rate for the bacterium colony of examination target bacterium by formula (5), unit is percentage (%), result of calculation retains 2 significant digits.
In formula:
-chemicals treatment bacterium colony forms number.
The probability value that forms inhibiting rate according to the bacterium colony of each drug concentration logarithm value and correspondence is done regression analysis, calculates the value of each medicament.
3.4 composite effect assessments
With test example 1.
3.5 result of the test
Copper rosinate and carbendazim single dose and each compound proportion are to Xanthomonas oryzae Toxicity Determination and each proportioning coefficient of synergism, as shown in table 3:
Table 3 copper rosinate and carbendazim single dose and the composite Toxicity Determination result to bacterial blight of rice germ
Copper rosinate is higher to Xanthomonas oryzae toxicity, EC
50for 15.04ppm.Carbendazim is not obvious to paddy rice bacterial leaf spot bacterium inhibition, EC
50up to 1730.82.The coefficient of synergism of copper rosinate and the each proportioning of carbendazim, between 3.5~6.47, has shown strong synergistic effect much larger than 1.5.
In this test example, copper rosinate and carbendazim adopt other proportioning ratio, as 10:1,8:1,5:1,2:1,1:2,1:5,1:8 or 1:10 carry out test as identical in test example 3, the bactericidal composition of last above-mentioned different proportional quantities is all stronger to the inhibitory action of Xanthomonas oryzae, coefficient of synergism, all higher than 1.5, shows strong synergistic effect.
Test example 4: the composite Toxicity Determination to Burkholderia glumae of copper rosinate and carbendazim
4.1 medicament preparations
With 1.1 of test example 1.
4.2 test strain
Paddy bacterial glume blight germ: clever shell Burkholderia (
burkholderia glumae).
4.3 test method
With 3.3 of test example 3.
4.1 composite effect assessments
With 1.4 of test example 1.
4.5 result of the test
The composite Toxicity Determination result to paddy bacterial glume blight of copper rosinate and carbendazim and the coefficient of synergism of each proportioning, as shown in table 4.
Table 4 copper rosinate and carbendazim single dose and the composite Toxicity Determination result to paddy bacterial glume blight
From result of the test, copper rosinate and carbendazim are composite to showing strong synergistic effect in the inhibitory action of paddy bacterial glume blight.The proportioning that coefficient of synergism is the highest is that copper rosinate and carbendazim 2:3 are composite, and coefficient of synergism reaches 7.36; The copper rosinate 3:2 of the proportioning that coefficient of synergism is minimum is composite, and coefficient of synergism has reached 3.01; The coefficient of synergism of each formula all far exceedes 1.5, has shown strong coefficient of synergism.
In the present invention, the composite synergistic effect that yet can obtain test example 1~4 to Rice Brown pinta germ, rice blast fungus, Ustilaginoidea virens and Rice Panicle maize ear rot Toxicity Determination of copper rosinate and carbendazim, does not repeat them here.
Test example 5: the control test of the composite seed soaking of copper rosinate and carbendazim to paddy rice infectivity seedling rot
Paddy rice infectivity seedling rot is by multiple disease funguses such as reaping hook mushroom, rhizoctonia class, continuous der Pilzs, and the multiple cause of disease of pathogenetic bacteria causes.Along with the popularization of industrial sprout cultivation technology, this problem is more and more serious.For checking copper rosinate and the composite control efficiency to paddy rice infectivity seedling rot of carbendazim, in China Paddy Rice Inst greenhouse, carry out the test of the composite seed soaking control of copper rosinate and carbendazim paddy rice infectivity seedling rot.
5.1 test situation
Test arranges several chemicals treatment (active ingredient concentration is all 0.125 ‰) altogether:
The composite 1600 times of liquid of (1) 20% copper rosinate and carbendazim 3:7;
The composite 1600 times of liquid of (2) 20% copper rosinates and carbendazim 1:1;
The composite 1600 times of liquid of (3) 20% copper rosinates and carbendazim 7:3;
(4) 20% 2000 times of carbendazim liquid (positive medicament contrast);
(5) 20% 1600 times of copper rosinates liquid (positive medicament contrast);
(6) clear water contrast;
Select surperficial N/R full seed, paddy of uniform size, in above-mentioned medicament or clear water processing, soak seed after 48 hours, after vernalization, be seeded in plastics capsule.By plastics etui, be placed in illumination box, humidity arranges 80%, with dark 16 degrees Celsius of 12 hours and 25 degree Celsius of 12 hours period alternate culture of illumination one week (simulation early rice seedling environment), then be placed in greenhouse, cultivate 30 days " Invest, Then Investigate " seedling rot rates, calculate according to the following formula preventive effect:
Every processing 20 basins, every processing repeats 3 times.
5.2 result of the test
The composite seed soaking of copper rosinate and carbendazim control paddy rice infectivity seedling rot, has obtained splendid control efficiency, wherein processes 1, processes 2 and to process 3 rice shoots neatly healthy and strong, is obviously better than processing 4, processes 5 and process 6.
Investigation result, as shown in table 5:
The composite seed soaking of table 5 copper rosinate and carbendazim is to paddy rice infectivity seedling rot control efficiency
From the result of the test of copper rosinate and the composite seed soaking control of carbendazim paddy rice infectivity seedling rot, same active ingredient mass concentration process 1(20% copper rosinate and carbendazim 3:7 composite), process 2(20% copper rosinate and carbendazim 1:1 composite) and process 3(20% copper rosinate and carbendazim 7:3 composite) can reach respectively 91.39%, 93.42% and 97.17% to the control efficiency of paddy rice infectivity seedling rot, be significantly better than two positive medicaments and contrast.Processing the preventive effect of 4 20% carbendazol wettable powders and only have 75.61%, is only 44.23% and process the preventive effect of 5 20% copper rosinate missible oil, and illustrating that copper rosinate and carbendazim are composite has a significant synergistic effect.
In this test example, copper rosinate and carbendazim adopt other proportioning ratio, as 10:1,8:1,5:1,2:1,1:2,1:5,1:8,1:10,3:2,2:3 or 1:1 carry out test as identical in test example 5, the bactericidal composition of last above-mentioned different proportional quantities all can reach more than 90% the control efficiency of paddy rice infectivity seedling rot, shows very strong synergistic effect.
Test example 6: the composite field control effectiveness test to Rice Panicle maize ear rot and rice green smut of copper rosinate and carbendazim
In order to verify the composite field control effect to rice green smut and Rice Panicle maize ear rot of copper rosinate and carbendazim, in July, 2013-2013 year November, in the tested base of rice in China, Fuyang, Hangzhou, carry out the composite field control effectiveness test to rice green smut and Rice Panicle maize ear rot of copper rosinate and carbendazim, obtained significant control efficiency.
6.1 test kinds
Late-maturing three is excellent No. 12 of Indica-Japonica Hybrid Rice river in Zhejiang Province.
6.2 controlling object
Rice green smut and Rice Panicle maize ear rot.
6.3 chemicals treatment settings (active ingredient is all 20 grams/acre)
Composite 100 grams/acre of (1) 20% copper rosinate and carbendazim 1:9;
Composite 100 grams/acre of (2) 20% copper rosinates and carbendazim 3:2;
Composite 100 grams/acre of (3) 20% copper rosinates and carbendazim 4:1;
(4) 20% 100 grams/acre of copper rosinate missible oil (positive medicament contrast);
(5) 20% 100 grams/acre of carbendazol wettable powders (positive medicament contrast);
(6) clear water contrast;
Each processing repeats 4 times, 24Ge community is set altogether, 30 square metres of every communities.
6.4 medicament usings method
Be watered 45,000 grams/acre, paddy rice cut the last week, spray.
6.5 investigation and investigation methods
After medicine 35 days, 5 points were selected in every community, and every some investigation 200 fringes are investigated the incidence of rice green smut and Rice Panicle maize ear rot by corresponding grade scale.
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:
Adopt the new multipole of Deng Kenshi poor (DMRT) method to carry out statistical analysis and comparison to test data.
6.6 result of the test
Copper rosinate and carbendazim composite to rice green smut and Rice Panicle maize ear rot prevent and treat test of pesticide effectiveness result, as shown in table 6:
Table 6 copper rosinate and carbendazim are composite to rice green smut and Rice Panicle maize ear rot field efficacy result
From to the preventive effect of rice green smut, in the situation that effective ingredient consumption is identical, three compound drug processing, process 1(20% copper rosinate and carbendazim 1:9 composite), process 2(20% copper rosinate and carbendazim 3:2 composite) and processing 3(20% copper rosinate and carbendazim 4:1 composite) preventive effect be respectively 91.43%, 92.67% and 93.38%, be significantly higher than and process 4(20% copper rosinate wetting powder) and process 5(20% carbendazol wettable powder), copper rosinate and the composite control efficiency excellence of carbendazim on the field efficacy of rice green smut are described, show very strong synergistic effect simultaneously.
From to the preventive effect of Rice Panicle maize ear rot, in the situation that effective ingredient consumption is identical, three compound drug processing, process 1(20% copper rosinate and carbendazim 1:9 composite), process 2(20% copper rosinate and carbendazim 3:2 composite) and processing 3(20% copper rosinate and carbendazim 4:1 composite) preventive effect can reach 96.65% respectively, 92.62% and 94.75%, be better than significantly processing 4(20% copper rosinate wetting powder) and process 5(20% carbendazol wettable powder), copper rosinate and the composite control efficiency excellence of carbendazim on the field efficacy of Rice Panicle maize ear rot are described, show very strong synergistic effect simultaneously.
In the present embodiment, copper rosinate and carbendazim adopt other proportioning ratio, as 10:1,8:1,5:1,2:1,1:2,1:5,1:8,1:10,3:2,2:3 or 1:1 carry out test as identical in test example 6, the bactericidal composition of last above-mentioned different proportional quantities all can reach more than 90% in the control efficiency of rice green smut and Rice Panicle maize ear rot, shows very strong synergistic effect.
Claims (6)
1. containing a bactericidal composition for carbendazim and copper rosinate, it is characterized in that containing active ingredient carbendazim and copper rosinate, the weight ratio of described carbendazim and copper rosinate is 1:10~10:1.
2. a kind of bactericidal composition containing carbendazim and copper rosinate as claimed in claim 1, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:9~9:1.
3. a kind of bactericidal composition containing carbendazim and copper rosinate as claimed in claim 1, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:4~1:1.
4. a kind of bactericidal composition containing carbendazim and copper rosinate as claimed in claim 1, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:1~9:1.
5. a kind of bactericidal composition containing carbendazim and copper rosinate as claimed in claim 1, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 1:4~2:3.
6. a kind of bactericidal composition containing carbendazim and copper rosinate as claimed in claim 1, the weight ratio that it is characterized in that described carbendazim and copper rosinate is 3:2~4:1.
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