Embodiment
Following instantiation is in order to further describing the present invention, but the present invention absolutely not only only limits to following these embodiment.Percentage all is weight percentage in the prescription, and employed former medicine and auxiliary agent are other producers and buy.
Formulation examples is as follows:
1, the preparation of suspending agent
According to the prescription requirement, take water as medium, will grind in the adding sand mills such as active ingredient, wetting agent, dispersant, thickener, defoamer, emulsification in the rear adding high-shear emulsifying still makes suspending agent.
Prescription 1 (7% suspending agent)
Component weight percent content
Desinsection list 5%
Multiple killing teichomycin 2%
Lauryl sodium sulfate 3%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 0.2%
Xanthans 0.2%
Defoamer 0.15%
Water supplies 100%
Prescription 2 (12.5% suspending agents)
Component weight percent content
Desinsection list 10%
Multiple killing teichomycin 2.5%
Dodecyl sodium sulfate 3%
Sodium lignin sulfonate 4%
Carboxymethyl cellulose 0.2%
Aluminium-magnesium silicate 0.1%
Defoamer 0.1%
Water supplies 100%
2, the preparation of wetting powder
Active ingredient, wetting agent, dispersant, filler etc. are fully mixed in the ratio of prescription, and behind ultra-fine pulverizer disintegrating, fineness reaches 98% by 325 mesh standard sieves, namely gets wetting powder.
Prescription 3 (33% wetting powders)
Component weight percent content
Desinsection list 30%
Multiple killing teichomycin 3%
Dodecyl sodium sulfate 3%
Polyvinylpyrrolidone 4%
Carboxymethyl cellulose 0.2%
Ammonium sulfate 10%
Sodium bentonite complements to 100%
3, the preparation of water dispersible granules
Active ingredient, wetting agent, dispersant, adhesive, filler etc. are fully mixed in the ratio of prescription, behind ultra-fine pulverizer disintegrating, add an amount of purified water, make water dispersible granules through kneading, granulation, drying, screening.
Prescription 4 (13% water dispersible granules)
Component weight percent content
Desinsection list 12%
Multiple killing teichomycin 1%
Lauryl sodium sulfate 3%
Polyvinylpyrrolidone 5%
Carboxymethyl cellulose 0.2%
Pull open powder 0.3%
Ammonium sulfate 8%
Kaolin complements to 100%
Prescription 5 (35.5% water dispersible granules)
Component weight percent content
Desinsection list 35%
Multiple killing teichomycin 0.5%
Dodecyl sodium sulfate 3%
Polyvinylpyrrolidone 6%
Carboxymethyl cellulose 0.2%
Aluminium-magnesium silicate 0.5%
Polyvinyl alcohol 0.2%
Kaolin surplus 1/2
Sodium bentonite surplus 1/2
Rice-stem borer (Chilo suppressalis) popular name borer, borer, moth stalk worms etc. are the formidable opponents of paddy rice.Larva moth food stem stalk causes the withered heart, and striped rice borer has the strain of turning harm habit, and a Chilo spp larvae can endanger many strains paddy rice, causes dead leaf sheath, the withered heart.If a lot of withered heart seedlings often can appear in untimely control, field, the part field is not is not prevented and treated striped rice borer because of nursery period, and field withered heart seedling ratio is up to 30% now, and part location, field withered heart seedling ratio surpasses 50%, causes very large loss.Desinsection list, multiple killing teichomycin are two kinds of compositions that insecticidal activity is very high, according to their effect characteristics and mechanism of action, the object of indoor biometrics are decided to be rice-stem borer (Chilo suppressalis).
The method of indoor biometrics is: adopt capillary micro intravenous drip method, capillary micro intravenous drip device volume is 1.0 μ L.With the micro intravenous drip device liquid is pursued a drop in the back side of striped rice borer 6 instar larvaes, the larva that each concentration place is about 30, the culture dish that it is 9cm that per 5 larvas are put into a diameter, the built-in a small amount of feed of ware is for taking food, in addition with 30 larvas of acetone drop in contrast.Larva after treatment still is placed in the receptacle, checks lethality behind the 48h.Data are processed with the SPSS software statistics.Obtain toxicity regression formula, the lethal concentration of 50, correlation coefficient etc., and obtain co-toxicity coefficient with the abundant method of Sun Yun.
The co-toxicity of mixture preparation adopts the abundant co-toxicity coefficient method representation of Sun Yun:
The theoretical toxicity index A=∑ of mixture preparation (toxicity index of certain medicine * percentage of this pharmaceutically active ingredient in mixture).
C was synergistic effect greater than 120 o'clock, less than 80 o'clock be antagonism, 80~120 o'clock is addition.
The different proportionings of table 1 are to the toxicity test result of striped rice borer
Table 2 desinsection list is tested the test of giving birth to of striped rice borer
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
20 |
40.00 |
40.00 |
40 |
50 |
31 |
62.00 |
62.00 |
20 |
50 |
39 |
78.00 |
78.00 |
10 |
50 |
43 |
86.00 |
86.00 |
5 |
50 |
46 |
92.00 |
92.00 |
CK |
50 |
0 |
|
|
Table 3 multiple killing teichomycin is tested the test of giving birth to of striped rice borer
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
21 |
42.00 |
42.00 |
40 |
50 |
33 |
66.00 |
66.00 |
20 |
50 |
41 |
82.00 |
82.00 |
10 |
50 |
44 |
88.00 |
88.00 |
5 |
50 |
47 |
94.00 |
94.00 |
CK |
50 |
0 |
|
|
The test of giving birth to of a pair of striped rice borer of table 4 prescription is tested
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
10 |
20.00 |
20.00 |
40 |
50 |
18 |
36.00 |
36.00 |
20 |
50 |
30 |
60.00 |
60.00 |
10 |
50 |
39 |
78.00 |
78.00 |
5 |
50 |
43 |
86.00 |
86.00 |
CK |
50 |
0 |
|
|
The test of giving birth to of two pairs of striped rice borer of table 5 prescription is tested
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
17 |
34.00 |
34.00 |
40 |
50 |
28 |
56.00 |
56.00 |
20 |
50 |
37 |
74.00 |
74.00 |
10 |
50 |
41 |
82.00 |
82.00 |
5 |
50 |
45 |
90.00 |
90.00 |
CK |
50 |
0 |
|
|
The test of giving birth to of three pairs of striped rice borer of table 6 prescription is tested
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
20 |
40.00 |
40.00 |
40 |
50 |
33 |
66.00 |
66.00 |
20 |
50 |
40 |
80.00 |
80.00 |
10 |
50 |
44 |
88.00 |
88.00 |
5 |
50 |
47 |
94.00 |
94.00 |
CK |
50 |
0 |
|
|
The test of giving birth to of four pairs of striped rice borer of table 7 prescription is tested
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
17 |
34.00 |
34.00 |
40 |
50 |
26 |
52.00 |
52.00 |
20 |
50 |
39 |
78.00 |
78.00 |
10 |
50 |
43 |
86.00 |
86.00 |
5 |
50 |
46 |
92.00 |
92.00 |
CK |
50 |
0 |
|
|
The test of giving birth to of five pairs of striped rice borer of table 8 prescription is tested
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
50 |
50 |
21 |
42.00 |
42.00 |
40 |
50 |
31 |
62.00 |
62.00 |
20 |
50 |
43 |
86.00 |
86.00 |
10 |
50 |
47 |
94.00 |
94.00 |
5 |
50 |
49 |
98.00 |
98.00 |
CK |
50 |
0 |
|
|
Analyze above-mentioned data, measurement result shows that when desinsection list and multiple killing teichomycin different proportion were composite, the co-toxicity coefficient of prescription all had obvious synergistic effect all greater than 120.Wherein fill a prescription 5 and prescription 3 co-toxicity coefficients maximum, be respectively 167.38 and 175.16.
By the indoor biometrics test, select the field trial that the larger prescription of CTC 3, prescription 5 and the less prescription 1 of CTC are prevented and treated rice-stem borer, determine the effect of prescription control rice-stem borer; Simultaneously by with the Contrast on effect of desinsection list, multiple killing teichomycin single dose, verify the synergistic effect after composite.Concrete test method and data are as follows:
Test the test of pesticide effectiveness that one: 35% desinsection list, 0.5% multiple killing teichomycin WDG, 33% desinsection list WDG, 3% multiple killing teichomycin WDG do the field control striped rice borer.Test site be Hanchuan City Liu of Xiaogan Prefecture, Hubei Province every the town, the time is on June 14th, 2009, the test totally four processing, each processes three repetitions, residential quarter randomized arrangement, residential quarter area 67m
2, the planting habit of all residential quarters all planting habit with local is identical, and the record dispenser same day and the synoptic data in a week thereafter are specific as follows:
Table 9 duration of test meteorological data
The investigation standard is: 7d gets killed strain 50 strains at random behind the medicine in each residential quarter, and the life or death number of Chilo spp larvae is looked in stripping, calculates lethality; 15d, 25d adopt every residential quarter 150 clumps of parallel sampling method samplings behind the medicine, investigate withered calculation, calculate at last withered heart rate and seedling protecting effect.Concrete data (data are the mean value of three repetitions) are as follows:
The effect table of table 1035% desinsection list 0.5% multiple killing teichomycin WDG and other chemical control striped rice borer
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2009 place: the Hubei Xiaogan
As can be seen from the above data, in the situation of using same dose, 35% desinsection list, 0.5% multiple killing teichomycin 25d control rate behind medicine can reach 96.1%, the effect when preventive effect is higher than 33% desinsection list and the use of 3% multiple killing teichomycin single dose far away, and difference is extremely remarkable.
Test two: test method, investigation method and meteorological data are the same, and concrete test data is as follows:
The effect table of table 1130% desinsection list 3% multiple killing teichomycin and other chemical control striped rice borer
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2006 place: the Jianli, Hubei
As can be seen from the above data, in the situation of identical using dosage, 30% desinsection list, 3% multiple killing teichomycin 25d control rate behind medicine can reach 95.7%, the effect when preventive effect is higher than 77.5% desinsection list WDG and the use of 2.5% multiple killing teichomycin WDG single dose far away, and difference is extremely remarkable.
Test three: test method, investigation method and meteorological data are the same, and concrete test data is as follows:
The effect table of table 125% desinsection list 2% multiple killing teichomycin and other chemical control striped rice borer
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2009 place: the Hubei Xiaogan
As can be seen from the above data, in the situation of identical using dosage, 5% desinsection list, 2% multiple killing teichomycin 25d control rate behind medicine can reach 86.1%, the effect when preventive effect is higher than 5% desinsection list WDG and the use of 2.5% multiple killing teichomycin WDG single dose far away, and difference is extremely remarkable.
By above-mentioned three field control effectiveness tests, the effect that can find out prescription 3, prescription 5 control rice-stem borers is best, this also matches with the result of indoor biometrics, and (CTC is larger, synergistic effect is larger), but the two difference is not remarkable, as considering the factor of pesticide cost, prescription 3 is best, the most economical proportionings of effect again; Also verified simultaneously when desinsection list and multiple killing teichomycin are composite by different proportion, the control efficiency of rice-stem borer all has been better than the effect of desinsection list and the use of multiple killing teichomycin single dose, certain synergistic effect has been arranged.
By above-mentioned three field control effectiveness tests, can determine to fill a prescription 3 for preventing and treating the more suitable prescription of rice-stem borer, 30% desinsection list, 3% multiple killing teichomycin WDG (prescription 3) has been carried out further test, filter out the optium concentration of control striped rice borer.Experimental scheme 4g/ mu, 5g/ mu, 6g/ mu and 4 concentration tonsures of 7g/ mu are also done contrast with the effect of 50% desinsection list (5g/ mu), 5% multiple killing teichomycin (5g/ mu), test method and investigation method are the same, and concrete data (mean values of three repetitions) are as follows:
Table 13 prescription 3 different amounts control striped rice borer effect table
Annotate: data are the mean value that repeats for 3 times in the table, and letter is all Duncan testing differentia remarkable time mutually: in June, 2009 place: the Hubei Xiaogan
Can find out that from the result of the above-mentioned test of pesticide effectiveness along with the increase of prescription dosage, drug effect also increases to some extent, 30% desinsection list, 3% multiple killing teichomycin WDG consumption is 5g/ mu, the seedling protecting effect of 25d is 96.4% behind the medicine, and apparently higher than 50% desinsection list and 5% multiple killing teichomycin, difference is extremely remarkable; When the mu consumption was 6g and 7g, 25 days seedling protecting effect and 5g/ mu was roughly the same after medication, and difference is not remarkable.Therefore, under the prerequisite of considering the mu cost, should advocate mu usage amount is 5g/ mu.