CN103385254A - Insecticidal composition comprising tefluthrin and biological source - Google Patents
Insecticidal composition comprising tefluthrin and biological source Download PDFInfo
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Abstract
The invention discloses an insecticidal composition comprising tefluthrin and a biological source. The composition comprises an active component A and an active component B. The active component A is selected from tefluthrin. The active component B is one compound selected from emamectin benzoate, spinosad, and ethyl spinosad. A weight ratio of the component A to the component B is 1:80-80:1. The composition provided by the invention has a synergetic effect against various pests harming agricultural production. With the composition, pesticide dose is reduced, pesticide residue on crop is reduced, and environment pollution is reduced. The composition is safe to human and livestock, and has good environment compatibility. With the composition, pest drug resistance is prevented.
Description
Technical field
The invention belongs to technical field of pesticide, relate to a kind of application of Pesticidal combination on crop pests that contains tefluthrin and biogenic substances.
Background technology
Tefluthrin (Tefluthrin) chemical name: 2,3,5,6-four fluoro-2-methyl-Benzyl base (suitable)-(1RS, RS)-3-(2-chloro-2,3,3-trifluoropropyl-1-thiazolinyl)-2,2-dimethyl cyclopropane carboxylic acid ester, molecular formula: C
17H
14ClF
7O
2.Tefluthrin is to can be used as the pyrethroid of soil insecticide as first, and is efficient to coleoptera, Lepidoptera and dipteral insect, can granule, soil sprays or the mode of seed treatment is used.Its volatility is good, can fully divide a word with a hyphen at the end of a line to prevent and treat soil pests in gas phase.Half life period be about one month large Tanaka, thereby it can keep longer residual effect to insect, and be unlikely to cause extended residual in soil.
Emamectin-benzoate (emamectin benzoate) is called for short first dimension salt, chemical name: 4'-table-methylamino-4'-deoxidation abamectin benzoate, this product is efficient, wide spectrum, the longevity of residure are long, for good insecticidal/acaricidal agent, its mechanism of action hinders pest movements nerve information transmission and makes the health paralysis dead.The mode of action is take stomach toxicity as main action of contace poison, and without interior absorption energy, but institute effectively infiltrates and use crop epidermal tissue to crop, thereby has the longer longevity of residure.
Ethyl pleocidin (spinetoram) molecular formula: C
42H
69NO
10, ethyl pleocidin is comprised of ethyl pleocidin-J and two kinds of components of ethyl pleocidin-L, acts on the nervous system of insect, the control efficiency that diamond-back moth, beet armyworm, Liriomyza, thrips, prodenia litura, lima bean pod borer have been had.
Summary of the invention
Tefluthrin, first dimension salt, multiple killing teichomycin, the long-term use of ethyl pleocidin single dose may bring degradation problem under resistance generation, drug effect, the Pesticidal combination that the present invention proposes contains active components A and active component B, and appropriate surfactant and carrier.
A kind of Pesticidal combination that contains tefluthrin and biogenic substances, contain active components A and active component B, active components A and active component B weight ratio are 1 ︰ 80 ~ 80 ︰ 1, described active components A is selected from tefluthrin, active component B is selected from a kind of in first dimension salt, multiple killing teichomycin, ethyl pleocidin, and active components A and the preferred weight ratio of active component B are 1 ︰ 60 ~ 60 ︰ 1; More preferably the weight ratio of tefluthrin and first dimension salt is 1 ︰ 5 ~ 25 ︰ 1, and the weight ratio of tefluthrin and multiple killing teichomycin is 1 ︰ 30 ~ 30 ︰ 1, and tefluthrin and ethyl pleocidin weight ratio are 1 ︰ 30 ~ 30 ︰ 1.
The described Pesticidal combination that contains tefluthrin and biogenic substances is used for the purposes of insect on control fruit tree, vegetables, cereal crops, fiber crop, legume crop, ornamental plants, lawn, forest.
Described insect comprises: cabbage caterpillar, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, flea beetle, Liriomyza, lima bean pod borer.
The weight ratio of active components A, active component B is 1 ︰ 80 ~ 80 ︰ 1.Usually in composition, the weight percentage of active component is 0.5%～90% of gross weight, and better is 5%～80%.According to different preparation types, the active component content scope is different.Usually, liquid preparation contains 1%～70% active substance by weight, is preferably 5%～50%; Solid pharmaceutical preparation contains 5%～80% active substance by weight, is preferably 10%～80%.
At least contain a kind of surfactant in Pesticidal combination of the present invention, the dispersion of active component in water while being beneficial to use.Surface-active contents is 5%～30% of total formulation weight amount, and surplus is solid or liquid diluent.
The selected surfactant of Pesticidal combination of the present invention is known in those skilled in the art: can be selected from one or more in dispersant, wetting agent, binding agent or defoamer., according to different dosage form, can also contain disintegrant known in those skilled in the art, antifreeze etc. in preparation.
Pesticidal combination of the present invention can be by the user before use through dilution or directly use.Its preparation can be by common processing method preparation known in those skilled in the art, be about to active substance and after liquid flux or solid carrier mix, then add one or more in surfactant such as dispersant, stabilizing agent, wetting agent, binding agent, defoamer etc.
Pesticidal combination of the present invention, can be processed on demand acceptable formulation on any agricultural chemicals, wherein more preferably formulation is wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microcapsule suspending agent, microcapsule suspension-suspending agent, can also make microemulsion.
When making wetting powder, composition comprises following constituent content: active components A 1% ~ 80%, active component B 0.1% ~ 80%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, filler surplus.
When making water dispersible granules, composition comprises following constituent content: active components A 1% ~ 80%, active component B 0.1% ~ 80%, dispersant 3% ~ 12%, wetting agent 1% ~ 8%, disintegrant 1% ~ 10%, binding agent 0 ~ 8%, filler surplus.
Comprise following constituent content when composition is made suspending agent: active components A 0.5% ~ 50%, active component B 0.1% ~ 50%, dispersant 2% ~ 10%, wetting agent 2% ~ 10%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, antifreeze 0 ~ 8%, deionized water add to 100%.
Comprise following constituent content when composition is made suspension emulsion: active components A 0.5% ~ 50%, active component B 0.1% ~ 50%, dispersant 2% ~ 10%, defoamer 0.01% ~ 2%, solvent 0 ~ 15%, thickener 0% ~ 2%, emulsifier 2% ~ 12%, antifreeze 0 ~ 8%, stabilizing agent 0 ~ 3%, deionized water add to 100%.
Comprise following constituent content when composition is made aqueous emulsion: active components A 0.5% ~ 50%, active component B 0.1% ~ 50%, solvent 1% ~ 30%, emulsifier 1% ~ 15%, antifreeze 0 ~ 8%, thickener 0 ~ 2%, defoamer 0.01% ~ 2%, deionized water are supplied surplus.
Comprise following constituent content when composition is made microcapsule suspending agent: active components A 0.5% ~ 50%, active component B 0.1% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 10%, organic solvent 1% ~ 10%, emulsifier 1% ~ 7%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%.
Composition comprises following constituent content while making microcapsule suspension-suspending agent: active components A 0.5% ~ 50%, active component B 0.1% ~ 50%, macromolecule cyst material 2% ~ 10%, dispersant 1% ~ 12%, wetting agent 1% ~ 8%, organic solvent 1% ~ 15%, emulsifier 1% ~ 6%, defoamer 0.01% ~ 2%, thickener 0 ~ 2%, pH adjusting agent 0.01% ~ 5%, deionized water add to 100%;
Wetting powder the key technical indexes of the present invention:
Water dispersible granules the key technical indexes of the present invention:
Suspending agent the key technical indexes of the present invention:
Suspension emulsion the key technical indexes of the present invention:
Aqueous emulsion the key technical indexes of the present invention:
Microcapsule suspending agent the key technical indexes of the present invention:
Microcapsule suspension of the present invention-suspending agent the key technical indexes:
The invention has the advantages that:
(1) tefluthrin and first dimension salt, multiple killing teichomycin, ethyl pleocidin composite after, have obvious synergy and lasting effect; (2) cabbage caterpillar on fruit tree, vegetables, cereal crops, fiber crop, legume crop, ornamental plants, lawn, forest, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, flea beetle, Liriomyza, lima bean pod borer etc. all there is greater activity; (3) reduce the agricultural chemicals dosage, reduced the residual quantity of agricultural chemicals on crop, alleviated environmental pollution; (4) to the person poultry safety, Environmental compatibility is good; And the preparation adhesion strength strengthens, resistance of rainwater washing against.
Embodiment
To further instruction of the present invention, the percentage in embodiment all is weight percentage below in conjunction with embodiment, but the present invention is not limited thereto.
Application Example one
Example 1 ~ 10 wetting powder
Tefluthrin, active component B, dispersant, wetting agent, filler are mixed in mixed cylinder, mix again after airslide disintegrating mill is pulverized, can make wetting powder product of the present invention, specifically in Table 1.
Table 1 embodiment 1 ~ 10 each component and weight portion
Example 11 ~ 20 water dispersible granules
Tefluthrin, active component B, dispersant, wetting agent, disintegrant, filler etc. are obtained through air-flow crushing the particle diameter that needs together, then add other auxiliary agent such as binding agent, obtain the materials of granulating.With item quantitatively send in the fluidized bed granulation dryer through granulation and drying after, can make water dispersible granules product of the present invention, specifically in Table 2.
Table 2 embodiment 11 ~ 20 each component and weight portions
Example 21 ~ 30 suspending agents
With dispersant, wetting agent, defoamer, thickener, antifreeze, mix through high speed shear, add tefluthrin, active component B, ball milling is 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μ m, surplus is supplied with deionized water, can make suspending agent product of the present invention, specifically in Table 3.
Table 3 embodiment 21 ~ 30 each component and weight portions
Example 31 ~ 40 suspension emulsions
Dispersant, defoamer, thickener, antifreeze are mixed through high speed shear, add active component B, ball milling is 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μ m, make active component B suspending agent, then with tefluthrin, solvent, emulsifier and various auxiliary agent with the direct emulsification of high speed agitator in suspending agent, surplus is supplied with deionized water, make suspension emulsion product of the present invention, specifically in Table 4,5.
Table 4 embodiment 31 ~ 35 each component and weight portions
Table 5 embodiment 36 ~ 40 each component and weight portions
Example 41 ~ 48 aqueous emulsions
Tefluthrin, active component B, solvent, emulsifier are added together, make and be dissolved into even oil phase; Deionized water, antifreeze, thickener, defoamer are mixed, become the homogeneous water.Under high-speed stirred, water is added oil phase, surplus is supplied with deionized water; Can make aqueous emulsion product of the present invention, specifically in Table 6,7.
Table 6 embodiment 41 ~ 44 each component and weight portions
Table 7 embodiment 45 ~ 48 each component and weight portions
First dimension salt, multiple killing teichomycin, ethyl pleocidin in table 1 ~ 7 are exchanged, can make novel formulation.
Example 49,50 microcapsule suspending agents
With tefluthrin, active component B, macromolecule cyst material, solvent, make and be dissolved into even oil phase, under shearing condition, oil phase is joined in the aqueous phase solution that contains emulsifier, pH adjusting agent, dispersant, defoamer, surplus is supplied with deionized water, bi-material reacts at oil-water interfaces, forms the macromolecule cyst wall, makes the finely disseminated microcapsule suspending agent product of the present composition.Specifically in Table 8.
Table 8 embodiment 49,50 each component and weight portions
Example 51,52 microcapsule suspensions-suspending agent
With active component B, macromolecule cyst material, solvent, make and be dissolved into even oil phase, oil phase is joined in the aqueous phase solution that contains emulsifier, pH adjusting agent under shearing condition, make finely disseminated microcapsule suspending agent.Dispersant, wetting agent, defoamer, thickener are mixed through high speed shear, add tefluthrin, ball milling is 2 ~ 3 hours in ball mill, make diameter of particle all below 5 μ m, make suspending agent, then suspending agent is joined in the aqueous phase solution of micro-capsule suspension, deionized water is supplied surplus, make the finely disseminated microcapsule suspension of the present composition-suspending agent product, specifically in Table 9.
Table 9 embodiment 51,52 each component and weight portions
The embodiment of the present invention is the method that adopts Toxicity Determination and field trial to combine.First by Toxicity Determination, the co-toxicity coefficient (CTC) after clear and definite two kinds of medicaments are composite by a certain percentage, CTC＜80 are antagonism, and 80≤CTC≤120 are summation action, and CTC＞120 are synergistic effect, on this basis, then carry out field trial.
Test method: respectively the mother liquor of each mixed agent is diluted to five series concentration during test, is placed in respectively beaker standby.Adopt and first to soak after leaf the method that connects worm, take out, naturally dry the blade of the same size that does not contact any medicament is soaked 5s in the liquid that configures after, put into insect box, then connect for the examination larva, raise under 25 ℃ of conditions, every processing repeats for 3 times, every to repeat examination borer population used be 50, establishes simultaneously blank, in 72h, checks dead borer population, calculate lethality and corrected mortality, try to achieve virulence regression equation and calculate LC
50Value.If the contrast lethality, greater than 10%, is considered as invalid test.Computing formula is as follows:
The insect corrected mortality is converted into probit value (y), and concentration for the treatment of (μ g/ml) converts logarithm value (x) to, with method of least squares, draws virulence regression equation, and calculates thus the value of every kind of medicament, according to the abundant equation of Sun Yun, calculates co-toxicity coefficient CTC.Computing formula following (take tefluthrin as the standard medicament, its toxicity index is 100):
TI * the P of the theoretical toxicity index (TTI) of M=tefluthrin
Tefluthrin+TI * P of effective active composition B
Effective active composition B
In formula: M is the mixture of different proportionings
P
Effective active composition BFor effective active composition B shared ratio in composition
P
TefluthrinFor tefluthrin shared ratio in composition
B is selected from a kind of in first dimension salt, multiple killing teichomycin, ethyl pleocidin.
Application Example two:
For trying insect: the brassicaceous vegetable beet armyworm
Test medicine provides by Shaanxi Welch Crop Protection Co., Ltd..
Experimental scheme: through preliminary experiment, determine that tefluthrin reaches both effective lethal concentration scopes of different proportioning mixtures from the former medicine of first dimension salt.
The toxicity test result
Table 10 tefluthrin and the composite analysis of results table of toxicity test to the brassicaceous vegetable beet armyworm of first dimension salt
| Reagent agent | Proportioning | LC 50(ug/mL) | Co-toxicity coefficient (CTC) |
| Tefluthrin | — | 1.45 | — |
| First dimension salt | — | 0.23 | — |
| Seven fluorine Ju Zhi ︰ first dimension salt | 80:1 | 0.82 | 165.97? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 60:1 | 0.75? | 177.88? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 30:1 | 0.68? | 182.10? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 25:1 | 0.59? | 204.15? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 10:1 | 0.43? | 227.56? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 8:1 | 0.36? | 253.50? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 5:1 | 0.28? | 274.97? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:1 | 0.16? | 248.29? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:2 | 0.15? | 213.24? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:5 | 0.13? | 205.92? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:20 | 0.13? | 184.43? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:60 | 0.14? | 166.70? |
| Seven fluorine Ju Zhi ︰ first dimension salt | 1:80 | 0.15? | 155.05? |
As shown in Table 10, tefluthrin and first dimension salt pair brassicaceous vegetable beet armyworm proportioning are when 1 ︰ 80 ~ 80 ︰ 1, co-toxicity coefficient is all greater than 120, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 80 ︰ 1 scopes, when the proportioning of tefluthrin and first dimension salt during at 1 ︰ 5 ~ 25 ︰ 1, synergistic effect is more obviously outstanding, and co-toxicity coefficient is all greater than 200.Wherein co-toxicity coefficient is maximum when tefluthrin and first dimension salt weight ratio is 5:1, and synergistic effect is the most obvious.Testing the control to the cabbage caterpillar on various crop, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, flea beetle Liriomyza, lima bean pod borer while finding that tefluthrin and first are tieed up the salt proportioning and be 25:1,20:1,15:1,10:1,9:1,8:1,7:1,6:1,5:1,4:1,3:1,2:1,1:1,1:2,1:3,1:4,1:5 through the applicant has obvious synergistic effect, and co-toxicity coefficient is all greater than 120.
Application Example three
For trying insect: the cotton cotton bollworm
Test medicine provides by Shaanxi Welch Crop Protection Co., Ltd..
Experimental scheme: through preliminary experiment, determine that the former medicine of tefluthrin and multiple killing teichomycin reaches both effective lethal concentration scopes of different proportioning mixtures.
The composite analysis of results table of toxicity test to the cotton cotton bollworm of table 11 tefluthrin and multiple killing teichomycin
| Reagent agent | Proportioning | LC 50(ug/mL) | Co-toxicity coefficient (CTC) |
| Tefluthrin | — | 1.26 | — |
| Multiple killing teichomycin | — | 1.35 | — |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 80:1 | 0.76 | 165.93? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 60:1 | 0.74? | 170.46? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 40:1 | 0.66? | 191.22? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 30:1 | 0.59? | 214.02? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 15:1 | 0.54? | 234.31? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 5:1 | 0.51? | 249.84? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:1 | 0.49? | 266.01? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:5 | 0.55? | 242.57? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:15 | 0.58? | 231.73? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:30 | 0.63? | 213.80? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:40 | 0.71? | 189.82? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:60 | 0.75? | 179.80? |
| Seven fluorine Ju Zhi ︰ multiple killing teichomycins | 1:80 | 0.83? | 162.51? |
As shown in Table 11, tefluthrin and multiple killing teichomycin to cotton cotton bollworm proportioning when 1 ︰ 80 ~ 80 ︰ 1, co-toxicity coefficient is all greater than 120, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 80 ︰ 1 scopes, when the proportioning of tefluthrin and multiple killing teichomycin during at 1 ︰ 30 ~ 30 ︰ 1, synergistic effect is more obviously outstanding, and co-toxicity coefficient is all greater than 210.Wherein co-toxicity coefficient is maximum when tefluthrin and multiple killing teichomycin weight ratio are 1:1, and synergistic effect is the most obvious.test and find that tefluthrin and multiple killing teichomycin proportioning are 30:1 through the applicant, 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:12, 1:14, 1:15, 1:20, during 1:30 to the cabbage caterpillar on various crop, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, the flea beetle Liriomyza, the control of lima bean pod borer has obvious synergistic effect, co-toxicity coefficient is all greater than 120.
Application Example four
For trying insect: the wild cabbage diamond-back moth
Test medicine provides by Shaanxi Welch Crop Protection Co., Ltd..
Experimental scheme: through preliminary experiment, determine that the former medicine of tefluthrin and ethyl pleocidin reaches both effective lethal concentration scopes of different proportioning mixtures.
The composite analysis of results table of toxicity test to the wild cabbage diamond-back moth of table 12 tefluthrin and ethyl multiple killing teichomycin
| Reagent agent | Proportioning | LC 50(ug/mL) | Co-toxicity coefficient (CTC) |
| Tefluthrin | — | 1.21 | — |
| The ethyl multiple killing teichomycin | — | 1.12 | — |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 80:1 | 0.74 | 163.35? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 60:1 | 0.68? | 177.71? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 40:1 | 0.63? | 191.69? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 30:1 | 0.56? | 215.52? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 15:1 | 0.51? | 236.07? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 5:1 | 0.48? | 248.77? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:1 | 0.42? | 277.01? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:5 | 0.45? | 252.08? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:15 | 0.49? | 229.71? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:30 | 0.52? | 215.97? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:40 | 0.59? | 190.24? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:60 | 0.62? | 180.92? |
| Seven fluorine Ju Zhi ︰ ethyl multiple killing teichomycins | 1:80 | 0.65? | 172.52? |
As shown in Table 12, tefluthrin and ethyl pleocidin to the proportioning of wild cabbage diamond-back moth when 1 ︰ 80 ~ 80 ︰ 1, co-toxicity coefficient is all greater than 120, illustrate that both are mixed and all show synergistic effect in 1 ︰ 80 ~ 80 ︰ 1 scopes, when the proportioning of tefluthrin and ethyl pleocidin during at 1 ︰ 30 ~ 30 ︰ 1, synergistic effect is more obviously outstanding, and co-toxicity coefficient is all greater than 215.Wherein co-toxicity coefficient is maximum when tefluthrin and ethyl pleocidin weight ratio are 1:1, and synergistic effect is the most obvious.test and find that tefluthrin and ethyl pleocidin proportioning are 30:1 through the applicant, 20:1, 15:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, 1:10, 1:12, 1:14, 1:15, 1:20, during 1:30 to the cabbage caterpillar on various crop, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, the flea beetle Liriomyza, the control of lima bean pod borer has obvious synergistic effect, co-toxicity coefficient is all greater than 120.
Application Example five tefluthrins and active component B and the composite control rice-stem borer test of pesticide effectiveness thereof
This test arrangement is in Hanzhong City suburb, Shaanxi Province; test medicine is researched and developed, is provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 10% tefluthrin missible oil (autogamy), 1% first dimension salt missible oil (commercial), 480 grams per liter multiple killing teichomycin suspending agents (commercial), 60 grams per liter ethyl multiple killing teichomycin suspending agents (commercial).
Before medicine, investigation rice-stem borer insect pest index,, in the dispenser of insect pest initial stage of origination, investigated the insect pest indexes and calculated preventive effect after dispenser in 1 day, 3 days, 7 days.Result of the test is as follows:
Table 13 tefluthrin and active component B and the composite control rice-stem borer test of pesticide effectiveness thereof
As can be seen from Table 13, can effectively prevent and treat rice-stem borer after tefluthrin and active component B are composite, control efficiency all is better than the preventive effect of single dose, and the preventive effect phase is long.In the test scope of medication, the target crop is had no adverse effects.
Application Example six tefluthrins and active component B and the composite control wild cabbage prodenia litura test of pesticide effectiveness thereof
This test arrangement is at the Xian District, Shanxi Province suburban area; test medicine is researched and developed, is provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 10% tefluthrin missible oil (autogamy), 1% first dimension salt missible oil (commercial), 480 grams per liter multiple killing teichomycin suspending agents (commercial), 60 grams per liter ethyl multiple killing teichomycin suspending agents (commercial).
Before medicine, investigation wild cabbage prodenia litura insect pest index,, in the dispenser of insect pest initial stage of origination, investigated the insect pest indexes and calculated preventive effect after dispenser in 1 day, 3 days, 7 days.Result of the test is as follows:
Table 14 tefluthrin and active component B and the composite control wild cabbage prodenia litura test of pesticide effectiveness thereof
As can be seen from Table 14, can effectively prevent and treat the wild cabbage prodenia litura after tefluthrin and active component B are composite, control efficiency all is better than the preventive effect of single dose, and the preventive effect phase is long.In the test scope of medication, the target crop is had no adverse effects.
Application Example seventy-seven Flumethrins and active component B and the composite control eggplant thrips test of pesticide effectiveness thereof
This test arrangement is at the Xian District, Shanxi Province suburban area; test medicine is researched and developed, is provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 10% tefluthrin missible oil (autogamy), 1% first dimension salt missible oil (commercial), 480 grams per liter multiple killing teichomycin suspending agents (commercial), 60 grams per liter ethyl multiple killing teichomycin suspending agents (commercial).
Before medicine, investigation eggplant thrips insect pest index,, in the dispenser of insect pest initial stage of origination, investigated the insect pest indexes and calculated preventive effect after dispenser in 1 day, 3 days, 7 days.Result of the test is as follows:
Table 15 tefluthrin and active component B and the composite control eggplant thrips test of pesticide effectiveness thereof
As can be seen from Table 15, tefluthrin and active component B and composite control eggplant thrips thereof, control efficiency all is better than the preventive effect of single dose, and the preventive effect phase is long.In the test scope of medication, the target crop is had no adverse effects.
Application Example eight tefluthrins and active component B and the composite control apple aphid test of pesticide effectiveness thereof
This test arrangement is at Shaanxi Province's Weinan City Baishui County; test medicine is researched and developed, is provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 10% tefluthrin missible oil (autogamy), 1% first dimension salt missible oil (commercial), 480 grams per liter multiple killing teichomycin suspending agents (commercial), 60 grams per liter ethyl multiple killing teichomycin suspending agents (commercial).
Before medicine, investigation apple aphid insect pest index,, in the dispenser of insect pest initial stage of origination, investigated the insect pest indexes and calculated preventive effect after dispenser in 1 day, 3 days, 7 days.Result of the test is as follows:
Table 16 tefluthrin and active component B and the composite control apple aphid test of pesticide effectiveness thereof
As can be seen from Table 16, can effectively prevent and treat apple aphid after tefluthrin and active component B are composite, control efficiency all is better than the preventive effect of single dose, and the preventive effect phase is long.In the test scope of medication, the target crop is had no adverse effects.
Application Example nine tefluthrins and active component B and the composite control tomato Bemisia tabaci test of pesticide effectiveness thereof
This test arrangement is at the Xian District, Shanxi Province suburban area; test medicine is researched and developed, is provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 10% tefluthrin missible oil (autogamy), 1% first dimension salt missible oil (commercial), 480 grams per liter multiple killing teichomycin suspending agents (commercial), 60 grams per liter ethyl multiple killing teichomycin suspending agents (commercial).
Before medicine, investigation tomato Bemisia tabaci insect pest index,, in the dispenser of insect pest initial stage of origination, investigated the insect pest indexes and calculated preventive effect after dispenser in 1 day, 3 days, 7 days.Result of the test is as follows:
Table 17 tefluthrin and active component B and the composite control tomato Bemisia tabaci test of pesticide effectiveness thereof
As can be seen from Table 17, can effectively prevent and treat the tomato Bemisia tabaci after tefluthrin and active component B are composite, control efficiency all is better than the preventive effect of single dose, and the preventive effect phase is long.In the test scope of medication, the target crop is had no adverse effects.
After draw through different local throughout the country tests, tefluthrin and first dimension salt, multiple killing teichomycin, the composite rear preventive effect to common insects such as the cabbage caterpillar on various crop, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, flea beetle Liriomyza, lima bean pod borers of ethyl multiple killing teichomycin are all more than 95%, be better than the single dose preventive effect, synergistic effect is obvious.
Claims (6)
1. Pesticidal combination that contains tefluthrin and biogenic substances, contain active components A and active component B, it is characterized in that: active components A and active component B weight ratio are 1 ︰ 80 ~ 80 ︰ 1, described active components A is selected from tefluthrin, and active component B is selected from a kind of in emamectin-benzoate, multiple killing teichomycin, ethyl pleocidin.
2. the Pesticidal combination that contains tefluthrin and biogenic substances according to claim 1, it is characterized in that: the weight ratio of active components A and active component B is 1 ︰ 60 ~ 60 ︰ 1.
3. the Pesticidal combination that contains tefluthrin and biogenic substances according to claim 2 is characterized in that:
The weight ratio of tefluthrin and emamectin-benzoate is 1 ︰ 5 ~ 25 ︰ 1;
The weight ratio of tefluthrin and multiple killing teichomycin is 1 ︰ 30 ~ 30 ︰ 1;
The weight ratio of tefluthrin and ethyl pleocidin is 1 ︰ 30 ~ 30 ︰ 1.
4. the described Pesticidal combination that contains tefluthrin and biogenic substances of any one according to claim 1 to 3, it is characterized in that: composition is made wetting powder, water dispersible granules, suspending agent, suspension emulsion, aqueous emulsion, microcapsule suspending agent, microcapsule suspension-suspending agent.
5. the Pesticidal combination that contains tefluthrin and biogenic substances according to claim 4 is used for the purposes of insect on the control crops.
6. purposes according to claim 5, is characterized in that, described insect comprises:
Cabbage caterpillar, striped rice borer, paddy stem borer, Americal rice leaf miner, beet armyworm, diamond-back moth, prodenia litura, cotton bollworm, citrus fruit fly, thrips, rice fulgorid, aleyrodid, aphid, flea beetle, Liriomyza, lima bean pod borer.
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| CN101755833A (en) * | 2009-10-29 | 2010-06-30 | 深圳诺普信农化股份有限公司 | Tefluthrin-containing combination |
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|---|---|---|---|---|
| CN1499932A (en) * | 2000-10-06 | 2004-05-26 | ������ɽ���� | Seed treatment with combinations of insecticides |
| CN1524420A (en) * | 2003-02-24 | 2004-09-01 | 李建中 | Insecticidal composition containing methylamino abamectin and pyrethroid compound |
| CN1628521A (en) * | 2004-10-22 | 2005-06-22 | 商春光 | Highly effective cyhalothrin insecticidal composite agent for crops |
| CN101500414A (en) * | 2006-06-19 | 2009-08-05 | 加利福尼亚大学董事会 | Combinations of biological control agents with a nematicidal seed coating |
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