CN1227976C - Pesticide composition comprising fipronil and bisulfap - Google Patents
Pesticide composition comprising fipronil and bisulfap Download PDFInfo
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- CN1227976C CN1227976C CN 02130761 CN02130761A CN1227976C CN 1227976 C CN1227976 C CN 1227976C CN 02130761 CN02130761 CN 02130761 CN 02130761 A CN02130761 A CN 02130761A CN 1227976 C CN1227976 C CN 1227976C
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Abstract
The present invention discloses an insecticidal composition which comprises fipronil and dimehypo as active components, wherein the weight ratio of the fipronil and the dimehypo is 1: 1 to100. The present invention also discloses an application of the insecticidal composition for controlling rice pests.
Description
Technical field
The present invention relates to a kind of Pesticidal combination that contains fluorine worm nitrile and dimehypo as active component.
Background technology
Paddy rice is the staple food crop of China and country in Southeast Asia.Being subjected to various pests while or sequence in the growth process of riceplant causes harm.The serious threat of formation of causing harm of insect to Rice Production.The particularly especially big generation of snout moth's larva 20 end of the centurys to the beginning of this century (mainly being paddy stem borer, striped rice borer) is suffered heavy losses.Though according to investigations through repeatedly chemical control, three generations paddy stem borer dead ears rate is still generally up to about 5%, the dead ears rate of serious field piece more than 50% do not belong to rare.Have a strong impact on peasant's kind grain enthusiasm, even jeopardized steady countryside.
At present medicament and the characteristics of control snout moth's larva: the medicament of preventing and treating snout moth's larva at present mainly contains dimehypo, desinsection list, Hostathion, fluorine worm nitrile and based on composite dose of Hostathion.Dimehypo (list) is the good medicament of the control lepidoptera pest developed voluntarily of China, and this medicine is with low cost, and cost per mu is less than monobasic, and is effective to various pests, and inhales permeability in having, and is subjected to user's welcome deeply.At the eighties to the end of the nineties in 20th century is the main medicament of the control snout moth's larva of rice always.Shortcoming is invalid substantially to plant hopper, and the drug effect phase is short, because long-term the use, serious resistance has taken place many regional snout moth's larvas.Because resistance problem, Hostathion and composite dose have replaced dimehypo (list) and have prevented and treated the snout moth's larva of rice.Hostathion is a kind of organophosphorus insecticide, to snout moth's larva preventive effect height, cost is medium, toxicity is medium, but the preventive effect to plant hopper is relatively poor, according to another many effects that studies confirm that Hostathion has stimulates plant hopper to lay eggs, very easily cause the rampant again of plant hopper, put into practice verified in recent years Hostathion and composite dose of using in a large number, some regional small brown rice planthopper populations sharply rise, thereby cause the stripe disease propagated by small brown rice planthopper popular.Stripe virus disease is a kind of virus disease, does not also have medicament to prevent and treat at present.And snout moth's larva is also very fast to the resistance rising of Hostathion, can predict, and Hostathion and composite dose of negative effect syndrome thereof will appear suddenly out soon.
Fluorine worm nitrile is a kind of phenyl pyrazoles novel pesticide that rhone-poulenc farmingization company developed and registered in China in 1987, and chemical name is: 5-amino-3-cyano group-1-(2,6-two chloro-4-fluoroform phenyl)-4-benzotrifluoride sulfinyl pyrazoles, toxicity is low.This medicine mechanism of action uniqueness, active high, consumption is few, and insecticidal spectrum is wide, and is all effective to snout moth's larva, plant hopper, rice leaf roller.The drug effect phase is long, can reach about 30 days drug effect phase of plant hopper, can reach about 15 days snout moth's larva.Be called high-tech insecticide of new generation in the world.Shortcoming is the cost height.Because external intellectual property still can't be produced at present at home, anti-snout moth's larva cost per mu has limited its popularizing area to a certain extent about 4 yuan, and particularly some economically less developed regions are difficult to promote.In addition, it is on the low side to the preventive effect of paddy stem borer.
For overcoming above-mentioned defective, report is arranged with fluorine worm nitrile and other insecticide mixture, make desinsection make up improve drug effect with reduce cost.The mixture preparation of fluorine worm nitrile and chlorophos, orthene, cartap, desinsection list for example, is disclosed among the CN1231120A; The mixture preparation of fluorine worm nitrile and desinsection list is disclosed among the CN1241360A; The mixture preparation of fluorine worm nitrile and Hostathion is disclosed among the CN1288668A; The mixture preparation of fluorine worm nitrile and Imidacloprid is disclosed among the CN1308862A.But above-mentioned preparation still exists not enough on control efficiency, therefore, still needs the more effective product that provides price cheaper.
Summary of the invention
The purpose of this invention is to provide a kind of Pesticidal combination that contains fluorine worm nitrile and dimehypo as active component.This Pesticidal combination is low toxicity not only, and efficient, can prevent and treat the multiple primary pest on the paddy rice effectively, is suitable for applying on production is used.
Specifically, the invention provides a kind of Pesticidal combination, it is characterized in that, fluorine worm nitrile, dimehypo are for composite dose to use fluorine worm nitrile and dimehypo as active component, wherein the weight ratio of fluorine worm nitrile and dimehypo is 1: 1-100 is preferably 1: 5-80, more preferably 1: 10-50.
According to purpose of the present invention, in Pesticidal combination of the present invention, fluorine worm nitrile and dimehypo are essential compositions, and this point is obvious.They are when being mixed with the preparation agent, and the content of fluorine worm nitrile is the 0.1-70% of weight of formulation, is preferably 0.2-50%, dimehypo is 1-50%, be preferably 2.5-30%, surplus other component, for example normally conventional pesticide processing adjuvant for using in can preparation.Pesticide adjuvant is selected according to the difference of prepared preparation, and for example, adjuvant can be for example surfactant and/or other solid or liquid extender, in addition, and can also contain for example adhesive, insecticide safener, spreader-sticker or the like.
Pesticidal combination of the present invention can be mixed with the various suitable formulations of pesticide, for example, and wetting powder, water solube powder, granule (comprising the water-dispersible granular material agent), pulvis, pill, tablet, paste, aqueous suspension agent, emulsion etc.These formulation example are as can be directly or by adding the form that water is prepared into aqueous dispersions, by spraying, atomizing, dust, spread fertilizer over the fields or mode such as irrigation is applied to the paddy field.
Described various formulation all can be prepared with known usual manner.For example, pulvis, wetting powder, water solube powder can by active component and adjuvant and solid-state carrier mix or mix grinding prepares; Granule for example dressing, dipping and even matter particle can prepare by active component is bonded on the solid-state carrier.
The adjuvant that is fit to is a surfactant for example; comprise for example alcohol, the alkylphenol of polyethoxylated, the fatty acid esters of sorbitan of polyethoxylated, dialkyl group sulphonyl succinate, alkyl sulfate, alkylbenzenesulfonate, organosilan, the N of polyethoxylated, N-dialkyl group taurate, lignosulphonates, naphthalene sulfonic acid-formaldehyde condensation product, polycarboxylate and the chimeric copolymer of polyoxyethylene/polyoxypropylene.
Solid-state carrier is for example silica, silica gel, silicate, talcum, kaolin, lime stone, lime, chalk, bole, loess, potter's clay, dolomite, diatomite, calcium sulphate, magnesium sulfate, magnesia, levigate plastics, fertilizer, as ammonium sulfate, ammonium phosphate, ammonium nitrate, urea and plant resource product such as cereal powder, bark powder, wood powder and nut kernel powder, cellulose powder or other solid-state carriers.
Pesticidal combination of the present invention, can be used to prevent and treat the snout moth's larva of rice for example striped rice borer, paddy stem borer, pink rice borer, rice fulgorid is brown planthopper, white-backed planthopper, small brown rice planthopper for example, rice leafhopper such as rice leafhopper, nephotettix bipunctatus, rice leaf roller, rice pests such as rice plant skipper, and show excellent pesticidal effect.
In Pesticidal combination of the present invention, if suitable, can also contain other agricultural chemicals, for example, be generally used for insecticide, insecticide, bactericide, plant growth regulator and the fertilizer etc. of paddy field.
The using dosage of the present composition can be subjected to multiple Effect of Environmental, and should determine according to physical condition.Generally speaking, the amount of application scope of Pesticidal combination of the present invention between, the using dosage of fluorine worm nitrile is a 0.1-5g a.i/ mu, is preferably 0.2-3g a.i./mu, the using dosage of dimehypo is a 2-100ga.i/ mu, is preferably 5-75g a.i/ mu.But at some in particular cases, amount of application can increase or reduce as required.
Fluorine worm nitrile of the present invention and dimehypo combination have extremely significant synergistic effect.The virulence regression equation and the lethal concentration of 50 of the combination of fluorine worm nitrile, dimehypo and fluorine worm nitrile and dimehypo are after measured:
Dimehypo: Y=1.6867+1.7457X LC50=78.71mg/L
Fluorine worm nitrile: Y=2.7068+1.6737X LC
50=23.4439mg/L
Combination: Y=2.4414+1.5128X LC
50=49.12mg/L
As calculated, the coefficient of synergism of combination can be up to 900.73, the synergy criterion of Sun Yunpei, and fluorine worm nitrile and dimehypo combination synergy extremely significantly (significantly are synergy greater than 100), this effect is that those skilled in the art are beyond thought.
Embodiment
The present invention adopts following non-limiting examples to be further described.
Embodiment 1: synergy test
Designed following 6 combinations in the present invention:
| Numbering | Fluorine worm nitrile (active ingredient g) | + dimehypo (active ingredient g) | Ratio |
| 1 | 1.5 | 9 | 1∶6 |
| 2 | 1 | 18 | 1∶18 |
| 3 | 0.75 | 27 | 1∶36 |
| 4 | 0.5 | 36 | 1∶72 |
| 5 | 0.75 | 36 | 1∶48 |
| 6 | 1.25 | 18 | 1∶14.4 |
Experimental technique:
The paddy stem borer larva is the synergy determination object.Different proportionings and single agent are made into the series concentration gradient, and the rice stem of paddy rice immerses in the concentration gradient of each medicament with tillering stage, 10 seconds of time takes out then and dries, and connects 2 of the paddy stem borer ant snout moth's larvas of firm hatching, and each concentration connects 20 of worms, repeats 5 times, counts 100 cephalonts.The initial data of synergy mensuration following (table 1).According to synergy mensuration and computational methods, the toxicity regression agenda of calculating is respectively:
Table 1 combination and single agent variable concentrations are to the influence (1998, Yangzhou) of paddy stem borer larva
| Medicament | Concentration (mg/L) | The concentration logarithm value | The larva death toll | Corrected mortality % | Lethality youngster's value of rate | |||
| Dimehypo | 25 45 90 180 360 720 | 1.352 1.635 1.954 2.255 2.556 2.857 | 5，5，3，6，5 7，9，8，8，6 11，10，14，12，13 15，16，16，18，14 18，19，17，17，19 20，17，18，20，20 | 16.48 31.87 56.04 72.16 89.69 94.51 | 4.0259 4.5295 5.1510 5.5888 6.2646 6.5982 | |||
| Fluorine worm nitrile | 3.8 7.6 15 30 60 120 | 0.579 0.880 1.176 1.477 1.778 2.079 | 3，4，4，2，3 6，5，7，7，4 8，10，10，8，9 12，14，14，11，11 16，15，15，17，17 18，16，16，17，20 | 7.69 21.98 39.56 58.24 78.02 85.71 | 3.5745 4.2278 4.7363 5.2070 5.7702 6.0669 | |||
| Fluorine, combination extremely (combination 2) | 10 20 40 80 160 320 | 1.000 1.301 1.602 1.903 2.204 2.505 | 4，6，3，3，5 7，7，6，8，8 9，10，8，11，11 13，14，12，16，12 16，18，18，15，16 16，17，20，18，17 | 13.19 29.67 43.96 63.74 81.32 86.81 | 3.8830 4.4670 4.8490 5.3505 5.8890 6.1170 | |||
| Fluorine, combination extremely (combination 3) | 10 20 40 80 160 320 | 1.000 1.301 1.602 1.903 2.204 2.505 | 3，4，3，2，5 6，7，7，4，7 8，11，10，9，7 12，13，12，16，10 14，17，17，13，13 18，15，20，15，17 | 8.79 24.18 39.56 59.34 71.43 83.52 | 3.6468 4.3301 4.7363 5.2353 5.5651 5.9741 | |||
| Fluorine, combination extremely (combination 6) | 10 20 40 80 160 320 | 1.000 1.301 1.602 1.903 2.204 2.505 | 4，3，3，4，4 7，5，5，6，8 10，12，9，9，9 15，14，11，14，12 15，15，17，13，15 19，16，15，18，18 | 9.89 25.28 43.96 62.64 72.53 84.62 | 3.7127 4.3349 4.8490 5.3213 5.5978 6.0194 | |||
| CK | 2，1，1，2，3 | |||||||
Dimehypo: Y=1.6867+1.7475X r=0.9975
LC
50＝78.71mg/L
Fluorine worm nitrile: Y=2.7068+1.6737X r=0.9956
LC
50＝23.4439mg/L
Fluorine kills combination (fluorine worm nitrile 1g a.i+ dimehypo 18g a.i):
Y＝2.4414+1.5128X r＝0.9951
LC
50＝49.12mg/L
Fluorine kills combination (fluorine worm nitrile 0.75g a.i+ dimehypo 27g a.i):
Y＝2.2596+1.5121X r＝0.9946
Fluorine kills combination (fluorine worm nitrile 1.25g a.i+ dimehypo 18g a.i):
Y＝2.3451+1.4492X r＝0.9925
LC
50＝59.004mg/L
According to the LC that calculates
50Value is the standard medicament with the dimehypo, and each medicament toxicity index of calculating is respectively:
TI
Kill=100, TI fluorine=335.65, TI
Group 2=160.24, TI
Group 3=121.26, TI
Group 6=133.40
The theoretical toxicity index of 3 combinations is respectively:
TTI
Group 2=17.79, TTI
Group=17.91, TTI
Group 6=17.26
The co-toxicity coefficient of each combination is respectively:
Combination 2=900.73, combination 3=677.05, combination 6=751.13
Judge and conclusion: according to the synergy criterion of the abundant relevant combination of Sun Yun, promptly co-toxicity coefficient significantly is synergy greater than 100, and less than 100 be antagonism, equaling 100 is summation action.By this experiment as seen, these two kinds of medicine combinations have significant synergistic effect, and wherein with fluorine worm nitrile 1g a.i+ dimehypo 18g a.i, promptly 1: 18 is optimum combination, the co-toxicity coefficient maximum.
Embodiment 2: the efficiency test of pot rice paddy stem borer
Result of the test sees Table 2.
Table 2 fluorine worm nitrile, dimehypo various combination are to the preventive effect (2002, Yangzhou) of paddy stem borer
| The combination sequence number | Connect borer population | Borer population alive | On average | Corrected mortality (%) | ||||
| 1 | 2 | 3 | 4 | 5 | ||||
| 1 2 3 4 5 6 7 8 CK | 100 100 100 100 100 100 100 100 100 | 6 3 4 6 5 2 5 4 18 | 6 0 6 5 3 1 8 7 15 | 4 1 6 5 2 1 4 6 17 | 8 2 3 4 4 0 4 5 16 | 5 2 3 4 2 3 6 6 16.4 | 5.8 1.5 4.4 4.8 3.2 1.4 5.4 5.6 | 64.63 90.24 73.17 70.73 80.5 91.46 67.07 65.85 |
Annotate: establish two kinds of single agent (7,8) and not medication contrast.
By table 2 as seen, the preventive effect of 2 pairs of paddy stem borers of combination is best, and it is extremely remarkable that differences is handled in variance analysis, and statistical analysis (multiple ratio) combination 1,3,4,5 preventive effects are significantly less than combination 2,5.
Embodiment 3: the plant hopper efficiency test
Each makes up the field preventive effect of plant hopper is seen Table 3.
Table 3 various combination is to the preventive effect (2002, Yangzhou) of plant hopper
| The combination sequence number | Radix (on average) before the medicine | 10d behind the medicine | 20d behind the medicine | ||||
| Borer population | On average | Proofread and correct preventive effect % | Borer population | On average | Proofread and correct preventive effect % | ||
| 1 2 3 4 5 6 7 8 CK | 325 353 298 308 304 317 286 311 346 | 586，634，621 483，409，567 799，688，802 1073，969，991 836，670，768 451，408，493 525，488，534 1993，2238，2097 2185，2940，2710 | 610.7 486.3 763 1011 758 450.7 515.7 2103 2611 | 75.11 81.75 66.08 56.51 67.4 81.17 76.11 10.40 | 629，712，685 545，523，611 1139，1048，1395 1809，1598，1856 1189，984，1319 681，625，732 717，671，669 2748，3109，3083 3815，4002，3906 | 675.3 559.7 1194 1754.3 1164 679.3 685.7 2980.0 3907.7 | 81.60 85.96 64.52 49.57 65.9 81.02 78.77 15.16 |
1,2,5 better to the preventive effect of plant hopper to make up, behind the medicine 20 days preventive effects still more than 80%, wherein the highest to make up 2 preventive effects.
Embodiment 4: the field efficacy of leaf-roller, snout moth's larva
Each makes up the field preventive effect of leaf-roller, snout moth's larva is seen Table 4.Each combination all has effect preferably to leaf-roller.It is main because these two kinds of single agent all have effect preferably to this worm.Preventive effect combination 2,4,6 to snout moth's larva combines than all the other 3, wherein to make up 2 for best.
Table 4 various combination is to the preventive effect (2002, Yangzhou) of leaf-roller, snout moth's larva
| The combination sequence number | Leaf-roller | Snout moth's larva | ||||
| The white number of sheets | On average | Preventive effect % | Withered calculation | On average | Preventive effect % | |
| 1 2 3 4 5 6 7 8 CK | 38，31.27 29，35，38 58，49，53 63，52，56 57，49，59 22，34，29 44，53，46 52，47，58 393，349，425 | 32 34 53.3 57 55 28.3 47.7 52.3 389 | 91.78 91.26 86.03 85.35 85.56 92.72 87.75 86.55 | 6，4，4 3，0，2 5，5，3 3，5，3 6，3，7 2，4，4 5，6，3 5，8，4 25，18，19 | 4.7 1.7 4.3 3.7 5.3 3.3 4.7 5.7 20.7 | 77.46 91.78 79.07 82.29 74.37 84.06 77.47 72.62 |
Pesticidal combination of the present invention proves that through indoor and field trial insects such as paddy stem borer, striped rice borer, plant hopper, rice leaf roller are all had very high preventive effect.On pot rice, tested in 2002, the present composition to the preventive effect of paddy stem borer up to 91.46%; Field trial after to the preventive effect medicine of plant hopper 10 days be 95.87%, 20 day be 85.96%; Preventive effect to rice leaf roller is 92.72%, is 91.78% to the snout moth's larva preventive effect.
Other explanations:
In the combination of fluorine worm nitrile of the present invention and dimehypo and the prior art disclosed fluorine worm nitrile add benthiocarb (list) (referring to, CN1231120A, CN1241360A) comparison, although the desinsection list is similar substantially on chemical constitution, controlling object to dimehypo.But with regard to single agent, the desinsection list is mainly used in complex preparation (composite with buprofezin, Imidacloprid etc.) in the past and is used to prevent and treat plant hopper, snout moth's larva etc.Because above-mentioned composite dose be summation action, desinsection singly in composite dose consumption on the low side, cause many regional snout moth's larvas even more serious than dimehypo to the pesticide resistance of desinsection list.Some areas (as Zhejiang) have been prohibited and have been used the desinsection list, but dimehypo still has certain preventive effect, particularly some pesticide resistance still available dimehypo control of serious area snout moth's larva very not.And from content disclosed by the invention as seen, the synergy of fluorine worm nitrile and dimehypo combination is more remarkable; Second characteristic is the formulation handling ease of fluorine worm nitrile and dimehypo combination, can be made into suspending agent and aqua.Processing cost is low, and is easy to use.Easily accept for the peasant.The 3rd characteristic are that the preventive effect of fluorine worm nitrile and dimehypo combination antagonism snout moth's larva is better than desinsection list complex preparation; The 4th characteristics are that dimehypo has how tame insecticide factory to produce in China, and the tonnage amount of production is very big, with the Firponil compounded advantage that still can bring into play these insecticide factories, improves the economic benefit of factory, even also has important social benefit.
Claims (5)
1, a kind of Pesticidal combination is characterized in that, contains fluorine worm nitrile and dimehypo as active component, and wherein the weight ratio of fluorine worm nitrile and dimehypo is 1: 1-100.
According to the Pesticidal combination of claim 1, it is characterized in that 2, the weight ratio of fluorine worm nitrile and dimehypo is 1: 5-80.
According to the Pesticidal combination of claim 2, it is characterized in that 3, the weight ratio of fluorine worm nitrile and dimehypo is 1: 10-50.
4, the application of the Pesticidal combination of claim 1-3 control rice grub.
5, according to the application of claim 4, wherein, described rice grub is selected from the snout moth's larva of rice, rice fulgorid, rice leafhopper, rice leaf roller and rice plant skipper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 02130761 CN1227976C (en) | 2002-09-25 | 2002-09-25 | Pesticide composition comprising fipronil and bisulfap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130761 CN1227976C (en) | 2002-09-25 | 2002-09-25 | Pesticide composition comprising fipronil and bisulfap |
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| CN1227976C true CN1227976C (en) | 2005-11-23 |
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