CN102657178B - Synergistic acaricidal composition containing spiromesifen and pyridaben - Google Patents
Synergistic acaricidal composition containing spiromesifen and pyridaben Download PDFInfo
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- CN102657178B CN102657178B CN 201210106560 CN201210106560A CN102657178B CN 102657178 B CN102657178 B CN 102657178B CN 201210106560 CN201210106560 CN 201210106560 CN 201210106560 A CN201210106560 A CN 201210106560A CN 102657178 B CN102657178 B CN 102657178B
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- pyridaben
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- mite
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Abstract
The invention discloses an acaricidal composition compounded by spiromesifen and pyridaben. The acaricidal composition contains a first effective component spiromesifen, a second effective component pyridaben and commonly-used auxiliary components, wherein the weight ratio of spiromesifen to pyridaben is 20:1-1:30. The acaricidal composition has a striking synergistic effect after complex formulation, has a better effect of controlling red mite, carmine spider mite and the like than two single doses which are individually used, And can effectively reduce the application amount of pesticides so as to decrease pesticide cost and minimize pollution to the environment.
Description
Technical field
The present invention relates to agricultural chemicals miticide composition and application thereof, specifically take Spiromesifen and pyridaben as the composite binary complex of active ingredient, be applied to prevent and treat Panonychus citri, Tetranychus cinnabarinus on crop.
Background technology
Spiromesifen, english common name: spiromesifen is mainly used in control aleyrodid and evil mite on cotton, vegetables and ornamental plants.Its mechanism of action is the growth that affects aleyrodid and acarid, disturbs the biosynthesis of its liposome, especially larval stage is had activity preferably, can also produce the ovarian duct closure function simultaneously, reduces the fertility of acarid and adult whitefly, greatly reduces the quantity of laying eggs.Safe by indoor and field trial proof Spiromesifen to beneficial organism, and the integrated control of suitable insect, residual effect is excellent, and plant compatibility is good, and is environmentally safe.
Pyridaben, english common name: pyridaben is a kind of wide spectrum, killing insects by touching miticide, is applicable to the multiple food vegetalitas evil of control mite on citrus, apple, pears, hawthorn, cotton, tobacco, vegetables (except eggplant) and ornamental plants.If be ovum, young mite mite and become mite that good control efficiency is arranged the whole vegetative period to mite, there is equally obvious speed to kill effect to the one-tenth mite of moving the phase.This medicine is not acted upon by temperature changes, and no matter uses in early spring or autumn, all can reach promising result.
The mite class is the common insect of a class, and the crops such as danger to vegetables, fruit tree, cotton are often caused destructive disaster to crop.The evil mite occurs from generation to generation many, and fertility is strong, and under suitable temperature, damp condition, evil mite quantity increases rapidly in the short period of time exponentially, thereby easily miticide is developed immunity to drugs, and preventive effect descends, and gives simultaneously the crop harm.For example, panonychus citri (
Panonychus citriMcGregor) be the Main Harmful mite that present China oranges and tangerines growing area generally occurs, the generation cycle is short, and fertility is strong, is easy to the control medicament is developed immunity to drugs; For another example, Tetranychus urticae (
Tetranychus urticaeKoah) be worldwide harmful mite, be commonly called as white spider, be in recent years in the orchard large, the pesticide resistance of harm by force, a kind of harmful mite of more difficult control.
It is an important subject that the evil mite is administered.The miticide rotation of the different mechanisms of action is used or is mixed to use and can effectively slow down the drug-fast generation of harmful mite, therefore, development is efficient, low toxicity, low-residual, the different mechanism of action, the complex preparation that obvious synergistic function is arranged again simultaneously, not only help to delay the drug-fast generation of evil mite, but also can extend the service life of pesticide species, reduce using dosage, save cost, reduce the pollution to environment.
The inventor conducts in-depth research the formula screening of Spiromesifen and pyridaben, find that Spiromesifen and pyridaben are mixed, has synergistic function in certain mixed ratio scope, in actual use, the composite use of Spiromesifen and pyridaben is to there being outstanding control efficiency the whole vegetative period that does harm to mite, after further study, completed the present invention.
Summary of the invention
The object of the present invention is to provide a kind of miticide composition that contains Spiromesifen and pyridaben, said composition is composite has obvious synergistic function, is applied to prevent and treat Panonychus citri, Tetranychus cinnabarinus on crop.
Another object of the present invention is to contain the miticide composition of Spiromesifen and pyridaben, in use can reduce dosage, delay the drug-fast generation of evil mite, its control efficiency to the evil mite is obviously improved, laborsaving, economical, reduce the pollution to environment, reduce farmer's burdens.
The present composition is characterised in that: take Spiromesifen and pyridaben as active ingredient, the weight ratio of Spiromesifen and pyridaben is 20:1～1:30, Spiromesifen and the percentage by weight of pyridaben weight summation in composition pesticide are 1%～80%, and all the other are to allow in agricultural chemicals to use and the acceptable auxiliary element.
Composition pesticide of the present invention is prepared into known method and is fit to upper any one formulation used of agricultural, and reasonable formulation has a kind of in suspending agent, aqueous emulsion, microemulsion, wetting powder, water dispersible granules and missible oil.
The auxiliary element that uses in the present composition comprises that solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc. are of value to active ingredient and stablize and bring into play the known substance of drug effect in preparation, be all various compositions commonly used in pesticidal preparations or that permission is used, concrete composition and consumption require to determine by test according to formula.
The frequency of administration of the present composition and amount of application have small variations with crops, insect, weather condition variation, can reach the purpose of control by using suitable dosage.
Compared with prior art, the invention has the advantages that.
1, composite have an obvious synergistic function, uses separately the control efficiency that has improved the evil mite than single dose.
2, double action mechanism delays the drug-fast generation of evil mite.
3, two kinds of active ingredients are composite, reduced the agricultural chemicals usage amount, reduced use cost and to the pollution of environment.
Embodiment
In order to understand better essence of the present invention, below in conjunction with embodiment, content of the present invention is described further, but can not be considered as limitation of the present invention.
(1) formula and preparation processing embodiment.
In the embodiment of the present invention, active ingredient adopts the 96.5% former medicine of Spiromesifen and the former medicine of 97.7% pyridaben.Each component percentage composition described in example is weight percentage.
Embodiment 1:40% Spiromesifen Damanling suspension agent.
Take 15% Spiromesifen, 25% pyridaben, 8% sodium lignin sulfonate, 2.5% OP-10(alkylphenol polyoxyethylene), 1% CMC(carboxymethyl cellulose), 0.02% organic silicone, 2% glycerine, deionized water complements to 100%.Above-mentioned raw materials after high speed shear is disperseed 30min, makes 40% Spiromesifen Damanling suspension agent after grinding with skin grinder through mixing.
Embodiment 2:25% Spiromesifen pyridaben micro-emulsion.
Take 10% Spiromesifen, 15% pyridaben, 15% phenethyl phenol polyethenoxy ether and agriculture breast 34#, 5% isopropyl alcohol, 10% dimethylbenzene, 10%N, dinethylformamide, fully after stirring and dissolving, deionized water complements to 100%.Continue to be stirred to transparent, make 25% Spiromesifen pyridaben micro-emulsion.
Embodiment 3:30% Spiromesifen pyridaben aqueous emulsion.
Take 20% Spiromesifen, 10% pyridaben, 4% phenethyl phenol polyethenoxy ether, 4% alkylbenzenesulfonate, 3%C
3-C
6Alcohol, 2% glycerine, 0.5% gum Arabic, 0.4% silicone oil, deionized water adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear emulsification makes 30% Spiromesifen pyridaben aqueous emulsion.
Embodiment 4:70% Spiromesifen pyridaben wetting powder.
Take 10% Spiromesifen, 60% pyridaben, 5% pulls open powder, 5% naphthalenesulfonate formaldehyde condensation compound, 10% talcum powder, kaolin adds to 100% weight portion.Above-mentioned raw materials makes 70% Spiromesifen pyridaben wetting powder through mixing after air-flow crushing.
Embodiment 5:55% Spiromesifen pyridaben water dispersible granules.
Take 5% Spiromesifen, 50% pyridaben, 5% mineral oil, 5% polyoxyethylene nonylphenol ether, the 5% fast T of bleeding agent, 2% lauryl sodium sulfate, 5% sodium lignin sulfonate, 4% naphthalene sulfonate, bentonite adds to 100% weight portion.Above-mentioned raw materials makes 55% Spiromesifen pyridaben water dispersible granules through mixing, ultra micro air-flow crushing, mixing, granulation.
Embodiment 6:15% Spiromesifen pyridaben missible oil.
Take 3% Spiromesifen, 12% pyridaben, 4% agriculture breast 500#, 4% agriculture breast 600#, 2% Nongru-700 #, 5% sulfurous acid triphenylmethyl methacrylate, 5% cyclohexanone, solvent naphtha S-150 adds to 100% weight portion.Above-mentioned raw materials makes 15% Spiromesifen pyridaben missible oil after mix, stirring and dissolving is complete.
(2) the indoor biological activity determination of the present composition and field efficacy checking.
1, Spiromesifen and the pyridaben indoor joint toxicity measuring to panonychus citri.
For trying worm: the indoor feeding panonychus citri (
Panonychus citriMe Gregor) female one-tenth mite.Reagent agent: the 96.5% former medicine of Spiromesifen and the former medicine of 97.7% pyridaben.
Test method is with reference to " the agricultural industry criteria NY/T1154.7-2006 of the People's Republic of China (PRC) " and " the agricultural industry criteria NY/T1154.12-2008 of the People's Republic of China (PRC) ".Adopt the slide infusion process, namely two-sided tape is cut into the end that 1cm * 2cm is attached to slide, the back side of the female one-tenth mite of panonychus citri is bonded on adhesive tape, 40 mites of each slide are established 4 repetitions, microscopy after 4 hours.After choosing dead mite, benefit is added and is lived into mite, the slide that is stained with female one-tenth mite is placed in dipping taking-up afterwards in 5 seconds in liquid, with unnecessary liquid around filter paper absorption slide and mite body, move under 25 ℃, relative moisture 90% condition and cultivate, microscopy after 24 hours records death toll and survival number (touch the motionless person of mite body with the writing brush point and be considered as death), and blank is processed with clear water.Calculate lethality or corrected mortality that each is processed.
Carry out statistical analysis with the DPS statistical analysis software, calculate the LC of each medicament
50, and method abundant according to Sun Yun calculated the co-toxicity coefficient (CTC value) of mixture.
Actual measurement toxicity index (ATI)=(standard medicament LC
50/ reagent agent LC
50) * 100.
The percentage composition of B in the percentage composition of A+B medicament toxicity index * mixture in theoretical toxicity index (TTI)=A medicament toxicity index * mixture.
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/theoretical toxicity index (TTI) of mixture] * 100.
According to the NY/T11547.7-2006 insecticide synergy criteria for classifying: co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
As can be seen from Table 1, Spiromesifen and pyridaben are 20
:1～1
:30(is by weight) scope in when composite, co-toxicity coefficient (CTC) shows synergistic function all greater than 120 to panonychus citri, especially 1
:1～1
:20(is by quality) scope in, synergistic effect is more obvious, co-toxicity coefficient (CTC) is all more than 200, visible Spiromesifen and pyridaben be composite has reasonability and feasibility.
Table 1, Spiromesifen and the pyridaben indoor joint toxicity measuring to panonychus citri.
2, the composite field control effectiveness test to panonychus citri of Spiromesifen and pyridaben.
Adopt embodiment 2(25% Spiromesifen pyridaben micro-emulsion) for the control panonychus citri, investigation insect population radix before dispenser, after medicine, 7d, 14d, 30d investigate respectively residual mite number alive, during investigation, 2 strains are looked in every residential quarter, every strain is looked into respectively 5 blades by orientation, 4 of the four corners of the world, every residential quarter is looked into 40 blades altogether, and record mite number alive calculates control efficiency.The control efficiency computational methods are as follows.
Control efficiency (%)=(1-CK1 * Pt1/CK2 * Pt2) * 100.
Wherein: CK1 represents insect population number before the medicine of check plot, and Pt1 represents insect population number after the treatment region medicine,
CK2 represents insect population number after the medicine of check plot, and Pt2 represents insect population number before the treatment region medicine.
The result of the test of table 2,25% Spiromesifen pyridaben micro-emulsion control panonychus citri.
25% Spiromesifen pyridaben micro-emulsion all will use 2000 times apparently higher than 1000 times of the Spiromesifen suspending agent single dose uses same period 24% and 15% pyridaben micro-emulsion single dose to the preventive effect of panonychus citri after using 2000～3000 times of 7d, 14d, 30d as can be seen from Table 2, illustrate Spiromesifen and pyridaben composite separately use to compare with two kinds of single doses can improve the panonychus citri preventive effect, have simultaneously good lasting effect, and do not find that this medicament produces poisoning to oranges and tangerines.
3, Spiromesifen and pyridaben are composite to the full field control effectiveness test of cotton cinnabar leaf.
Adopt embodiment 3(30% Spiromesifen pyridaben aqueous emulsion) be used for control cotton cinnabar leaf completely, investigation insect population radix before dispenser, after medicine, 7d, 14d, 30d investigate respectively residual mite number alive, during investigation, 2 strains are looked in every residential quarter, every strain is looked into respectively 5 blades by orientation, 4 of the four corners of the world, each residential quarter is looked into 40 blades altogether, and record mite number alive calculates control efficiency.The control efficiency computational methods are as follows.
Control efficiency (%)=(1-CK
1* Pt
1/ CK
2* Pt
2) * 100.
Wherein: CK
1Represent the front insect population number of check plot medicine, Pt
1Represent insect population number after the treatment region medicine,
CK2 represents insect population number after the medicine of check plot, and Pt2 represents insect population number before the treatment region medicine.
Table 3, the 30% full result of the test of Spiromesifen pyridaben aqueous emulsion control cotton cinnabar leaf.
30% Spiromesifen pyridaben aqueous emulsion all will use 2000 times apparently higher than 1000 times of the Spiromesifen suspending agent single dose uses same period 24% and 15% pyridaben micro-emulsion single dose to the full preventive effect of cotton cinnabar leaf after using 2000～3000 times of 7d, 14d, 30d as can be seen from Table 3, illustrate Spiromesifen and pyridaben composite use separately to compare with two kinds of single doses can improve the full preventive effect of cotton cinnabar leaf, have simultaneously good lasting effect, and do not find that this medicament produces poisoning to cotton.
In sum, it is the complex composition of Spiromesifen and pyridaben that the present invention adopts two kinds of active components, has synergistic function.Compare with existing unitary agent, miticidal effect obviously improves, and the lasting period is long, to crop safety, can slow down the drug-fast generation of harmful mite, is worth applying in agricultural production.
Claims (1)
1. Synergistic mite killing composition that contains Spiromesifen and pyridaben, it is characterized in that active ingredient is Spiromesifen and pyridaben, is comprised of following weight percent content: 20% Spiromesifen, 10% pyridaben, 4% phenethyl phenol polyethenoxy ether, 4% alkylbenzenesulfonate, 3%C
3-C
6Alcohol, 2% glycerine, 0.5% gum Arabic, 0.4% silicone oil, deionized water adds to 100%, and above-mentioned raw materials is through mixing, and high speed shear emulsification makes 30% Spiromesifen pyridaben aqueous emulsion.
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| CN106857541B (en) * | 2016-12-26 | 2019-09-06 | 中国农业科学院植物保护研究所 | A kind of synergistic pesticide composition and application |
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