Background technology butene-fipronil (fipronil) belongs to a kind of Phenylpyrazole insecticides, insecticidal spectrum is wide, to insect based on stomach poison function, have concurrently and tag and certain systemic function, its mechanism of action is to hinder the chloride metabolism of insect γ~aminobutyric acid control, therefore important pests such as aphid, leafhopper, plant hopper, lepidopterous larvae, fly class and coleoptera there is very high insecticidal activity, crop is not had poisoning.During foliage spray, water rice hopper, rice-stem borer, paddy rice paddy stem borer, rice leaf roller, diamond-back moth, imported cabbageworm, rice thrips etc. are all had high-level preventive effect, and the lasting period is long.
It is a kind of macrolides Nuisanceless high-efficient biological insecticides that extract in the sugared many born of the same parents fermented liquid of thorn that multiple killing teichomycin has another name called pleocidin (Spinosad).Produce parent strain soil actinomycetes thorniness saccharopolyspora strain (the Saccharopolyspora spinosa Metrz ﹠amp of multiple killing teichomycin; Yao) initial separation is from one of the Caribbean discarded wine brewing field.The mode of action novelty of multiple killing teichomycin can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid.The acting body of nicotinic acid acetylcholinergic receptor can sustained activation target insect acetylcholine nicotine receptor, but its binding site is different from nicotine and Imidacloprid.Multiple killing teichomycin also can influence the GABA acceptor, insect is had tag fast and stomach poison function, and blade is had stronger osmosis, can kill subepidermal insect, and the longevity of residure is longer, and some insects are had certain ovicidal action.No systemic action.Can effectively preventing Lepidoptera, diptera and thrips insect, can prevent and treat well also that some measures the pest species of food blade greatly in coleoptera and the orthoptera, relatively poor to the control efficiency of sucking pest and mite class.Safer to the predator insect, unique because of insecticidal action mechanism, do not find as yet at present to have mutual drug-fast report with other insecticides.Plant safety there is not poisoning.Be suitable for using on vegetables, fruit tree, gardening, the crops.Can make insect benumb rapidly, paralyse, cause death at last.Its desinsection speed can compare favourably with chemical pesticide.Safe, and do not have the biological insecticides that cross resistance is low toxicity, efficient, low-residual with present common insecticide, existing insecticidal properties efficiently has again the characteristic of beneficial insect and mammalian safe being arranged, the most suitable pollution-free vegetable, fruit production application.
Because agricultural pests causes very big loss to crops production every year, consider the agricultural chemicals of long-term use single variety, impel insect to produce resistance easily, environment is caused bigger pollution, field trial shows, the existing medicament another kind of mixed pesticide different with mechanism of action, can not only postpone resistance and produce, can also improve drug effect and residual period, reduce usage amount, reduce cost, so we use butene-fipronil and the composite expansion insecticidal spectrum of multiple killing teichomycin.Not only can effectively prevent and treat most of insect, reduce environmental pollution, also improve drug effect and lasting period.The synergistic complex of agricultural chemicals is the effective ways that enlarge the pesticide control spectrum and improve drug effect.
Summary of the invention the purpose of this invention is to provide that a kind of insecticidal activity is efficient, lasting effect is long, the Pesticidal combination of the high and low poison of quick-acting, environmental protection.Be specifically related to the pesticide water dispersible granules that butene-fipronil and multiple killing teichomycin are basis.
Water dispersible granules is compared with missible oil, can not only save a large amount of organic solvents, stops to reduce significantly when organic solvent uses the pollution to environment, and drug effect also is improved to some extent; Compare with wettable powder, suspending agent, the active constituent content height, volume is little, has increased safety, gives packing, stores, transports and brought very big economic benefit and social benefit.Thus, still there are a lot of deficiencies in complex preparations such as missible oil, suspending agent, wetting powder at aspects such as economy, serviceability, environmental protection, packed and transported, press for the product forms that a kind of safer, efficient, environmental protection is provided.
Utilize the described insecticides of the invention described above, be equipped with the known auxiliary agent of those skilled in that art, can make formulation of the present invention with those skilled in that art's known method.Its formulation that can process is water dispersible granules (WDG).
Advantage that the present invention has and beneficial effect: 1. the desinsection scope is wide, to the Lepidoptera super-high-efficient; 2. the lasting period is long; 3. low toxicity, noresidue, nuisanceless, environmentally safe; 4. use compound formulation, two kinds of insecticides also have synergistic effect, and the consumption of two kinds of insecticides reduces during all than single use, thereby has improved insecticidal effect, has increased safety, has reduced environmental pollution.
The water dispersible granules of preparing above-mentioned insecticide is composed of the following components by weight percentage:
Butene-fipronil 0.5%~20%, multiple killing teichomycin 4%~35%, wetting agent 1%~20%, dispersant 1%~20%, adhesive 0%~15%, spreader-sticker 0%~10%, stabilizing agent 0%~5%, penetrating agent 0%~8%, filler 10%~80%, each component sum is 100%.
Example 1
Component weight percent content
Butene-fipronil 2%
Multiple killing teichomycin 5%
Sldium lauryl sulfate 6%
Polyoxyethylene nonylphenol ether 4%
Carboxymethyl cellulose 0.5%
Poly-trisiloxanes 0.2%
Ammonium sulfate 10%
The kaolin surplus complements to 100%
Each component sum is 100%.
Example 2
Component weight percent content
Butene-fipronil 2.5%
Multiple killing teichomycin 10%
Sldium lauryl sulfate 7%
Polyoxyethylene nonylphenol ether 7%
Carboxymethyl cellulose 0.25%
Ammonium sulfate 8%
Starch 5%
Kaolin 1/2 surplus
Bentonite 1/2 surplus
Each component sum is 100%.
Example 3
Component weight percent content
Butene-fipronil 3%
Multiple killing teichomycin 30%
Sldium lauryl sulfate 6%
Polyoxyethylene nonylphenol ether 8%
Carboxymethyl cellulose 0.2%
Ammonium sulfate 12%
Starch 8%
The precipitated calcium carbonate surplus complements to 100%
Each component sum is 100%.
Example 4
Component weight percent content
Butene-fipronil 1%
Multiple killing teichomycin 12%
Sldium lauryl sulfate 8%
Polyoxyethylene nonylphenol ether 4%
Carboxymethyl cellulose 0.2%
Ammonium sulfate 15%
Starch 5%
Kaolin 1/2 surplus
Precipitated calcium carbonate 1/2 surplus
Each component sum is 100%.
Example 5
Component weight percent content
Butene-fipronil 3%
Multiple killing teichomycin 33%
Sldium lauryl sulfate 8%
Polyoxyethylene nonylphenol ether 7%
Carboxymethyl cellulose 0.15%
Ammonium sulfate 15%
Starch 6%
Kaolin 1/2 surplus
Bentonite 1/2 surplus
Each component sum is 100%.
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 commentaries on classics harm habit, and a Chilo spp larvae can endanger many strains paddy rice, causes dead leaf sheath, the withered heart.If untimely control, the field a lot of withered heart seedlings occur through regular meeting, and part field piece 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 big loss.Fluorine worm nitrile, emamection benaoate are two kinds of compositions that insecticidal activity is very high, according to their the 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 trace drop method, capillary trace dropper volume is 1.0 μ L.With micro-dropper soup is pursued a drop in the back side of striped rice borer 6 instar larvaes, each concentration is handled about 30 larva, 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 getting 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 handled 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
Medicament and proportioning |
Toxicity regression formula Y=aX+b |
Lethal concentration of 50 Lc50 (mg/L) |
Correlation coefficient (r
2)
|
Toxicity index (TT) |
Co-toxicity coefficient (CTC) |
Butene-fipronil |
??y=0.032x+4.8648 |
??4.23 |
??0.9008 |
??100.00 |
|
Multiple killing teichomycin |
??y=0.033x+4.9442 |
??1.69 |
??0.8793 |
??249.87 |
|
Prescription 1 |
??y=0.0395x+4.2053 |
??20.12 |
??0.9322 |
|
??144.90 |
Prescription 2 |
??y=0.0335x+4.6705 |
??9.84 |
??0.8864 |
|
??156.28 |
Prescription 3 |
??y=0.034x+4.8948 |
??3.09 |
??0.8921 |
|
??175.16 |
Prescription 4 |
??y=0.037x+4.653 |
??9.38 |
??0.8898 |
|
??145.40 |
Prescription 5 |
??y=0.0456x+4.8172 |
??4.01 |
??0.9412 |
|
??167.38 |
Table 2 butene-fipronil 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 |
Dosage (mg/l) |
The examination borer population |
Death toll |
Lethality (%) |
Corrected mortality (%) |
??CK |
??50 |
??0 |
|
|
Analyze above-mentioned data, measurement result shows that when butene-fipronil 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 the prescription 3 co-toxicity coefficient maximums, be respectively 167.38 and 175.16.
By the indoor biometrics test, select the field trial that the bigger 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 of the effect of butene-fipronil, the agent of multiple killing teichomycin list, verify the synergistic effect after composite.Concrete test method and data are as follows:
Test the test of pesticide effectiveness that one: 2% butene-fipronil, 5% multiple killing teichomycin WDG, 5% butene-fipronil WDG, 50% 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 handles three repetitions, sub-district randomized arrangement, sub-district area 67m
2, the planting habit of all sub-districts 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
Date |
??6~14 |
??6~15 |
??6~16 |
??6~17 |
??6~18 |
??6~19 |
??6~20 |
Temperature ℃ |
??26~33 |
??23~32 |
25~34 is cloudy |
??25~33 |
??24~31 |
??23~31 |
??24~32 |
The investigation standard is: 7d gets killed strain 50 strains at random behind the medicine in each sub-district, and the life or death number of Chilo spp larvae is looked in stripping, calculates lethality; 15d, 25d adopt every sub-district 150 clumps of parallel sampling method samplings behind the medicine, investigate withered calculation, calculate withered heart rate and seedling protecting effect at last.Concrete data (data are the mean value of three repetitions) are as follows:
The effect table of table 10 3% butene-fipronil, 33% 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
From above data as can be seen, under the situation of identical using dosage, 3% butene-fipronil, 33% multiple killing teichomycin 25d control rate behind medicine can reach 96.1%, the effect when preventive effect is higher than 3% butene-fipronil and 33% multiple killing teichomycin list agent use 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 11 3% butene-fipronil, 30% 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
From above data as can be seen, under the situation of identical using dosage, 3% butene-fipronil, 30% multiple killing teichomycin 25d control rate behind medicine can reach 95.7%, the effect when preventive effect is higher than 3% butene-fipronil WDG and 30% multiple killing teichomycin WDG list agent use 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 12 2% butene-fipronil, 5% 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
From above data as can be seen, under the situation of identical using dosage, 2% butene-fipronil, 5% multiple killing teichomycin 25d control rate behind medicine can reach 86.1%, the effect when preventive effect is higher than 2% butene-fipronil WDG and 5% multiple killing teichomycin WDG list agent use far away, and difference is extremely remarkable.
By above-mentioned three field control effectiveness tests, fill a prescription 3 as can be seen, the effect of prescription 5 control rice-stem borers is best, this also matches with the result of indoor biometrics, and (CTC is big more, synergistic effect is big more), but the two difference is not remarkable, as considering the factor of pesticide cost again, prescription 3 is best, the most economical proportionings of effect; Also verified simultaneously butene-fipronil and multiple killing teichomycin by different proportion when composite, the control efficiency of rice-stem borer all has been better than the effect of butene-fipronil and multiple killing teichomycin list agent use, 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, 3% butene-fipronil, 30% 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 gradients of 7g/ mu are also done contrast with the effect of 5% butene-fipronil (5g/ mu), 50% 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
From the result of the above-mentioned test of pesticide effectiveness as can be seen, along with the increase of prescription dosage, drug effect also increases to some extent, 3% fluorine worm nitrile, 30% multiple killing teichomycin WDG consumption is a 5g/ mu, the seedling protecting effect of 25d is 96.4% behind the medicine, and apparently higher than 5% fluorine worm nitrile and 50% 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.