CN102613211B - Compound insecticide - Google Patents
Compound insecticide Download PDFInfo
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- CN102613211B CN102613211B CN 201210046684 CN201210046684A CN102613211B CN 102613211 B CN102613211 B CN 102613211B CN 201210046684 CN201210046684 CN 201210046684 CN 201210046684 A CN201210046684 A CN 201210046684A CN 102613211 B CN102613211 B CN 102613211B
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- killing teichomycin
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- 239000002917 insecticide Substances 0.000 title abstract description 9
- 150000001875 compounds Chemical class 0.000 title abstract description 7
- NHOIBRJOQAYBJT-IMGVWCFESA-N nimbin Chemical compound C=1([C@@H]2C[C@H]3O[C@H]4[C@](C3=C2C)(C)[C@@H]([C@]2(C(=O)C=C[C@](C)([C@@H]2[C@H]4OC(C)=O)C(=O)OC)C)CC(=O)OC)C=COC=1 NHOIBRJOQAYBJT-IMGVWCFESA-N 0.000 claims description 28
- ZQIYJHBQRBBBRZ-UHFFFAOYSA-N nimbin Natural products COC(=O)CC1C2C(C(OC(=O)C)C3OC4CC(C(=C4C13C)C)c5cocc5)C(C)(C=CC2=O)C(=O)OC ZQIYJHBQRBBBRZ-UHFFFAOYSA-N 0.000 claims description 28
- 108010053950 Teicoplanin Proteins 0.000 claims description 27
- BJNLLBUOHPVGFT-QRZIFLFXSA-N teichomycin Chemical compound CCCCCCCCCC(=O)N[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC(C(=C1)OC=2C(=CC(=CC=2)[C@@H](O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@H]2C(N[C@H](C3=CC(O)=CC(O[C@@H]4[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O4)O)=C3C=3C(O)=CC=C(C=3)[C@@H](NC3=O)C(=O)N2)C(O)=O)=O)Cl)=C(OC=2C(=CC(C[C@H](C(N4)=O)NC(=O)[C@H](N)C=5C=C(O6)C(O)=CC=5)=CC=2)Cl)C=C1[C@H]3NC(=O)[C@@H]4C1=CC6=CC(O)=C1 BJNLLBUOHPVGFT-QRZIFLFXSA-N 0.000 claims description 27
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 26
- 239000000575 pesticide Substances 0.000 claims description 12
- 239000000375 suspending agent Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000004562 water dispersible granule Substances 0.000 claims description 5
- 238000009736 wetting Methods 0.000 claims description 5
- 241000500437 Plutella xylostella Species 0.000 abstract description 16
- 239000003814 drug Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 239000004480 active ingredient Substances 0.000 abstract description 7
- 229940079593 drug Drugs 0.000 abstract description 6
- 239000005878 Azadirachtin Substances 0.000 abstract description 5
- VEHPJKVTJQSSKL-UHFFFAOYSA-N azadirachtin Natural products O1C2(C)C(C3(C=COC3O3)O)CC3C21C1(C)C(O)C(OCC2(OC(C)=O)C(CC3OC(=O)C(C)=CC)OC(C)=O)C2C32COC(C(=O)OC)(O)C12 VEHPJKVTJQSSKL-UHFFFAOYSA-N 0.000 abstract description 5
- FTNJWQUOZFUQQJ-IRYYUVNJSA-N azadirachtin A Natural products C([C@@H]([C@]1(C=CO[C@H]1O1)O)[C@]2(C)O3)[C@H]1[C@]23[C@]1(C)[C@H](O)[C@H](OC[C@@]2([C@@H](C[C@@H]3OC(=O)C(\C)=C/C)OC(C)=O)C(=O)OC)[C@@H]2[C@]32CO[C@@](C(=O)OC)(O)[C@@H]12 FTNJWQUOZFUQQJ-IRYYUVNJSA-N 0.000 abstract description 5
- FTNJWQUOZFUQQJ-NDAWSKJSSA-N azadirachtin A Chemical compound C([C@@H]([C@]1(C=CO[C@H]1O1)O)[C@]2(C)O3)[C@H]1[C@]23[C@]1(C)[C@H](O)[C@H](OC[C@@]2([C@@H](C[C@@H]3OC(=O)C(\C)=C\C)OC(C)=O)C(=O)OC)[C@@H]2[C@]32CO[C@@](C(=O)OC)(O)[C@@H]12 FTNJWQUOZFUQQJ-NDAWSKJSSA-N 0.000 abstract description 5
- 239000005929 Spinetoram Substances 0.000 abstract description 2
- GOENIMGKWNZVDA-OAMCMWGQSA-N Spinetoram Chemical compound CO[C@@H]1[C@H](OCC)[C@@H](OC)[C@H](C)O[C@H]1OC1C[C@H]2[C@@H]3C=C4C(=O)[C@H](C)[C@@H](O[C@@H]5O[C@H](C)[C@H](CC5)N(C)C)CCC[C@H](CC)OC(=O)CC4[C@@H]3CC[C@@H]2C1 GOENIMGKWNZVDA-OAMCMWGQSA-N 0.000 abstract description 2
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 235000006008 Brassica napus var napus Nutrition 0.000 description 2
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Abstract
The invention relates to a compound insecticide, which contains two active ingredients: spinetoram and azadirachtin. The compound insecticide has a good effect on controlling plutella xylostella. Due to the adoption of the compound insecticide, the drug fastness can be delayed, while the consumption of the compound insecticide is reduced, pollution on the environment can be reduced, and a drug hazard is uneasy to produce.
Description
Technical field
The invention belongs to pesticide field, relate in particular to the compounded pesticides of a kind of ethyl multiple killing teichomycin and nimbin.
Background technology
Ethyl multiple killing teichomycin (Spinetoram) is a kind of novel multiple killing teichomycin insecticides of being produced by Dow AgroSciences, it can effectively control the important insect pest on fruit tree and nut, be mainly used in preventing and treating lepidopterous larvae, thrips and Liriomyza etc., diamond-back moth, beet armyworm, Liriomyza, thrips, prodenia litura, lima bean pod borer are had good control efficiency.It is higher that it has biologically active, and insecticidal spectrum is wider, and quick-acting is better, and the lasting period is longer, resistance of rainwater washing against, the characteristics such as low toxic and environment-friendly.
Nimbin (azadirachtin) is the strongest compound of activity that extracts from seal chinaberry (Azadriachta indica), and it belongs to tetracyclic triterpenes.Nimbin can be divided into nimbin-A ,-B, and-C ,-D ,-E, totally 8 kinds of-F ,-G ,-I mainly are distributed in kind of a core, secondly in leaf.Mechanism of action is special, and the nimbin that It is generally accepted has following several aspect to the mechanism of action of insect: directly or indirectly produce Antifeedant Effects by the chemical co-ordination organ that destroys the insect mouthpart; Make the nutrition conversion of food not enough by the effect to midgut digestive enzymes, affect the vitality of insect.The nimbin of high dose is kill insects directly, and low dosage causes and permanent larva or the pupa of deformity, adult etc. occur.By suppressing Brain Neurosecretory Cells to the synthetic of thoratropic hormone (PTrH) and discharging, affect prothoracic gland to the synthetic of ecdysteroids and discharge, and corporal allata is to the synthetic and release of juvenile hormone.In insect hemolymph, the destruction of juvenile hormone normal concentration level makes simultaneously the needed vitellogenin synthesis deficiency of the insect maturation of ovum and causes sterile.Due to nimbin have food refusal, avoid keep away, tag, stomach toxicity, interior suction and suppress insect growth growth effect, by internationally recognized be most important antifeedant for insect.It has efficiently, wide spectrum, pollution-free, noresidue, be difficult for developing immunity to drugs, harmless and pest natural enemy is waited safely characteristic to homoiothermy animals such as people and animals, can prevent and treat 10 orders more than 400 and plant agricultural, storage and sanitary insect pest.Use azadirachtin insecticide and can effectively prevent and treat the insects such as cotton bollworm, caterpillar, gypsymoth, Japanese beetle first, tobacco budworm, the real noctuid of paddy, prodenia litura, diamond-back moth, Liriomyza, fall army worm, desert locust, African migratory locust, corn borer, brown plant-hopper, thrips, brill back of the body worm, fruit bat, armyworm, can be widely used in the crops such as grain, cotton, forest, flowers, melon and fruit, vegetables, tobacco, tealeaves, coffee, insect is produced it give birth to pesticide resistance.
Because agricultural pests causes very large loss to crops production every year, simultaneously, use for a long time the agricultural chemicals of single variety, easily impel insect to produce resistance, environment is caused larger pollution.Field trial shows that the existing medicament another kind of mixed pesticide different from mechanism of action can not only be postponed resistance and be produced, can also improve drug effect and residual period, reduce usage amount, reduce peasant's dispenser cost, thus we with ethyl multiple killing teichomycin and azadirachtin complex in order to enlarge insecticidal spectrum.Two kinds of active ingredients are composite, not only can effectively prevent and treat most of insect, environmental contamination reduction has also improved drug effect and lasting period, has reduced peasant's labour cost, increases economic benefit.
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 compounded pesticides of the high and low poison of quick-acting, environmental protection.Be specifically related to the pesticidal preparations that ethyl multiple killing teichomycin and nimbin are basis.
Above-mentioned composite in, contain ethyl multiple killing teichomycin 1%-30%, nimbin 0.5%-25%.
Utilize the described compounded pesticides 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 the known method of those skilled in that art.Its formulation that can process is suspending agent, wetting powder, water dispersible granules.
The advantage that the present invention has and beneficial effect: 1. the desinsection scope is wide; 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.
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.In formula, percentage all is weight percentage, and the former medicine that uses and auxiliary agent are other producers and buy.
Formulation examples is as follows:
1, the preparation of suspending agent
According to the formula requirement, take water as medium, active ingredient, wetting agent, dispersant, thickener, defoamer etc. are added grind in sand mill, after add emulsification in the high-shear emulsifying still, make suspending agent.
Suspending agent formula
2, the preparation of wetting powder
Active ingredient, wetting agent, dispersant, filler etc. are fully mixed in the ratio of formula, and after ultra-fine pulverizer disintegrating, fineness reaches 98% by 325 mesh standard sieves, namely gets wetting powder.
The wettable powder agent prescription
3, the preparation of water dispersible granules
Active ingredient, wetting agent, dispersant, adhesive, filler etc. are fully mixed in the ratio of formula, after ultra-fine pulverizer disintegrating, add appropriate purified water, make water dispersible granules through kneading, granulation, drying, screening.
The water-dispersible grain agent prescription
Diamond-back moth (Plutella xylostella) belongs to Lepidoptera diamond-back moth section, another name: little blue or green worm, pointed at both ends.The worldwide insect that migrates, the crucifers such as the wild cabbage of mainly causing harm, purple wild cabbage, broccoli, a kind of sedge dish, leaf mustard, cauliflower, Chinese cabbage, rape, radish.Characteristics cause harm: first instar larvae only takes food mesophyll, stays epidermis, forms transparent one by one spot on the dish leaf, and 3～4 instar larvaes can be eaten into the dish leaf hole and incise, and when serious, full leaf is eaten and reticulated.Often concentrate lobus cardiacus to cause harm in seedling stage, the impact bag heart.In the strain of reserving seed for planting, endanger tender stem, young pod and seed.Ethyl multiple killing teichomycin, nimbin have very high insecticidal activity for diamond-back moth, so we are decided to be diamond-back moth with the object of indoor biometrics.
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, each concentration is processed the larva of 30 left and right, the culture dish that it is 9cm that every 5 larvas are put into a diameter, the built-in a small amount of feed of ware is separately used 30 larvas of acetone drop in contrast for taking food.Larva after treatment still is placed in receptacle, checks lethality after 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.
Compounding method of preparation according to above-mentioned suspending agent, wetting powder, water dispersible granules, according to the content of former medicine what, select suitable formulation, preparation ethyl multiple killing teichomycin content is at 1%-30% and the Azadirachtin Cotent complex preparation at 0.5%-25%, the survey experiment is given birth in selection wherein representational formula, and compares with 10% ethyl multiple killing teichomycin and 10% nimbin.
The toxicity test result of the different proportionings of table 1 to diamond-back moth
Analyze above-mentioned data, measurement result shows, when nimbin and ethyl multiple killing teichomycin different proportion were composite, the co-toxicity coefficient of all compounded formulas all had obvious synergistic effect respectively all greater than 120.After explanation is composite with two kinds of active ingredients, good synergistic effect can be arranged.Test by indoor biometrics, select the field trial that the larger formula of CTC three, formula five and the less formula eight of CTC are prevented and treated diamond-back moth, determine the effect of formula control diamond-back moth; Simultaneously by with the Contrast on effect of ethyl multiple killing teichomycin, nimbin single dose, verify the synergistic effect after composite.Concrete test method and data are as follows:
Test one 17% ethyl multiple killing teichomycin nimbin WP, 10% ethyl multiple killing teichomycin nimbin SC, 30.5% ethyl multiple killing teichomycin nimbin WDG, 10% ethyl multiple killing teichomycin SC, 10% nimbin SC do the test of field control diamond-back moth, test site is that Hanchuan City Liu of Xiaogan Prefecture, Hubei Province is every the town, time is on August 1st, 2011, test totally four processing, each processes three repetitions, the residential quarter randomized arrangement, residential quarter area 89m
2, the planting habit of all residential quarters all planting habit with local is identical, records the dispenser same day and the synoptic data in a week thereafter, and is specific as follows:
Table 2 duration of test meteorological data
The investigation standard is: after medicine, 7d gets killed strain 50 strains at random in each residential quarter, and the life or death number of bat dish method metering nymph calculates lethality; After medicine, 15d, 25d adopt every residential quarter 150 clumps of parallel sampling method samplings, 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:
Table 317% ethyl multiple killing teichomycin nimbin WP and other compounded formulas field control effectiveness test to diamond-back moth
Annotate: in table, data are the mean value that repeats for 3 times, and letter is all Duncan testing differentia remarkable time mutually: in August, 2011 place: the Hubei Xiaogan
as can be seen from the above data, in the situation that identical using dosage, the 25d control rate is 88.34% to 17% ethyl multiple killing teichomycin nimbin WP (formula three) after medicine, the 25d control rate reaches 90.26% to 10% ethyl multiple killing teichomycin nimbin SC (formula five) after medication, for only using 10% ethyl multiple killing teichomycin SC and 10% nimbin SC, effect when two kinds of composite preventive effects are used higher than single dose far away, difference is extremely remarkable, and 30.5% ethyl multiple killing teichomycin nimbin WDG (formula eight) 25d after medication, its preventive effect is 79.72%, and formula three and fill a prescription obvious difference is arranged between five.
By above-mentioned three field control effectiveness tests, the effect that can find out formula three, formula five control diamond-back moths is best, and eight the control efficiency of filling a prescription has comparatively significantly difference with formula three and formula five, this also matches with the result of indoor biometrics, and (CTC is larger, synergistic effect is larger), and significant differences both.Simultaneously, formula five preventive effects are better than filling a prescription three, think that formula five is best, the most economical proportionings of effect, with respect to the single dose of ethyl multiple killing teichomycin and nimbin, stronger synergistic effect are arranged.
By above-mentioned three field control effectiveness tests, can determine to fill a prescription five for the more suitable formula of control diamond-back moth, this formula has been carried out further test, filter out the optium concentration of control diamond-back moth.
Test the experiment of two: 10% ethyl multiple killing teichomycin nimbin SC (formula five) control diamond-back moth optium concentration, experimental scheme 10g/ mu, 12g/ mu, 14g/ mu and 4 concentration gradients of 16g/ mu are also done contrast with the effect of 10% ethyl multiple killing teichomycin SC (12g/ mu), 10% nimbin SC (12g/ mu) respectively, test method and investigation method are the same, and concrete data (mean values of three repetitions) are as follows:
The effect table of table 4 formula five different amounts control diamond-back moths
Annotate: in table, data are the mean value that repeats for 3 times, and letter is all Duncan testing differentia remarkable time mutually: in August, 2011 place: the Hubei Xiaogan
Can find out from the result of the above-mentioned test of pesticide effectiveness, increase along with the formula dosage, drug effect also increases to some extent, 10% ethyl multiple killing teichomycin nimbin SC consumption is 12g/ mu, after medicine, the seedling protecting effect of 25d is 90.37%, apparently higher than the effect of 10% ethyl multiple killing teichomycin, 10% nimbin single dose, difference is extremely remarkable; When the mu consumption was 14g and 16g, the seedling protecting effect of 25 days is respectively 91.64% and 92.57% after medication, and was not remarkable with the difference of 12g/ mu.Therefore, under the prerequisite of considering the mu cost, should advocate mu usage amount is 12g/ mu.
Claims (2)
1. a compounded pesticides, is characterized in that, described compounded pesticides active component is comprised of ethyl multiple killing teichomycin and nimbin, and described ethyl multiple killing teichomycin percentage by weight is 1%～30%, and the nimbin percentage by weight is 0.5%～25%.
2. compounded pesticides according to claim 1, is characterized in that, described compounded pesticides is made suspending agent, wetting powder, water dispersible granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210046684 CN102613211B (en) | 2012-02-27 | 2012-02-27 | Compound insecticide |
Applications Claiming Priority (1)
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