CN104430436B - Diafenthiuron and pyridalyl Pesticidal combination - Google Patents
Diafenthiuron and pyridalyl Pesticidal combination Download PDFInfo
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- CN104430436B CN104430436B CN201410691346.0A CN201410691346A CN104430436B CN 104430436 B CN104430436 B CN 104430436B CN 201410691346 A CN201410691346 A CN 201410691346A CN 104430436 B CN104430436 B CN 104430436B
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- pyridalyl
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Abstract
The invention discloses the Pesticidal combination that a kind of diafenthiuron and pyridalyl are compounded, comprising diafenthiuron, pyridalyl and insecticides adjuvant, the weight ratio of diafenthiuron and pyridalyl is 1：10~10：1, percentage by weight is 3%~97% in the composition for diafenthiuron and pyridalyl weight summation；According to practical application needs, Pesticidal combination of the present invention can be prepared as middle one kind of aqueous emulsion, microemulsion, suspending agent, wettable powder, water dispersible granules, for preventing and treating agricultural pests.
Description
Technical field
The present invention relates to a kind of diafenthiuron and pyridalyl Pesticidal combination, be with diafenthiuron and pyridalyl as effectively into
Point, for preventing and treating agricultural pests, such as lepidoptera pest such as diamondback moth, prodenia litura, beet armyworm, leaf roller, armyworm.
Background technology
The resistance problem of agricultural pests is a global problem, is always the emphasis class of agricultural science and technology worker concern
Topic.With the continuity year in year out of Chemical Control of Harmful Insects, the increase of Pesticide use amount and not scientifical use agricultural chemicals, insect
Resistance is increasingly serious, produces the pest species of resistance to be on the increase.Meanwhile, the use agricultural chemicals of high intensity causes agricultural product agricultural chemicals
Exceeded, environmental pollution and the increase of peasant's drug cost etc. are remained, is unfavorable for agricultural sustainable development.Therefore, research and develop efficiently,
Low toxicity, the insect growth regulator, IGR agricultural chemicals of environmental protection have positive effect to agricultural sustainable development.
Diafenthiuron belongs to Thiourea insecticidal/acaricidal agent, with interior suction, tag, stomach toxicity and fumigation action.It can be by disturbing god
Through the energetic supersession of system, destroy the basic function of nervous system, suppress chitin synthesis, prevent insect from normally casting off a skin and
Extremely.
Pyridalyl is a kind of novel insecticidal agent, and its mechanism of action is not similar with current conventional use of insecticide, right
Many Species of Lepidopterous Insect Pests have height selection insecticidal activity, separately have document report pyridalyl also to have suppression population to spread to thrips
Effect.
The mixture of different pesticide species, is the common methods for preventing and treating agriculture diseases, insect pests and weeds.Screened by formulation of pesticide, screening
Go out rational formula, actual prevention effect can be effectively improved, reduce dosage, reduces cost delays disease pest and weed drug-fast
Produce, be the important means of agricultural synthesis improvement.The present inventor is goed deep into the recipe determination of diafenthiuron and pyridalyl
Research, it is found that diafenthiuron and pyridalyl carry out mixture and have obvious synergy to lepidoptera pest in certain mixed ratio scope
Effect, after further study, completes the present invention.
The composition and application of diafenthiuron and pyridalyl there is no report at present.
The content of the invention
Present invention solves the technical problem that be to provide it is a kind of efficiently, low toxicity and the lasting period it is long, can effectively prevent and treat agriculture squama wing
A kind of diafenthiuron and pyridalyl Pesticidal combination of mesh class pest.
To solve the above problems, the technical solution adopted in the present invention is：A kind of diafenthiuron and pyridalyl Insecticidal combinations
Thing, active ingredient is diafenthiuron and pyridalyl, and diafenthiuron is 1 with the weight ratio of pyridalyl：5~5：1, diafenthiuron and pyridine worm
Percentage by weight is 3~97% to propyl ether weight summation in the composition.
Pesticidal combination of the invention is prepared into any one formulation for being adapted to agriculturally use with known method, compares
The processing technology that good formulation has aqueous emulsion, microemulsion, suspending agent, wettable powder, water dispersible granules, various preparations is now
There is technology, can be varied from according to different situations.
The auxiliary agent used in the Pesticidal combination that the present invention is provided includes solvent, emulsifying agent, wetting agent, stabilizer, dispersion
Agent, safener, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., be all in Pesticide formulation often
Various auxiliary agents, specific composition and consumption are determined according to recipe requirements by simple experiment.
The production technology of the various application forms of Pesticidal combination that the present invention is provided belongs to existing known technology, herein no longer
Repeat.
The Pesticidal combination that the present invention is provided, is used using spray method, it is also possible to use agriculturally apply as needed
Other use technology.
The present invention is for preventing and treating Lepidoptera class pest agriculturally.
The Pesticidal combination that the present invention is provided, is generally used, it is also possible to as needed using agriculturally using spray method
Other of application use technology.
The method have the advantages that：
1st, a kind of diafenthiuron and pyridalyl Pesticidal combination that the present invention is provided show bright in certain ratio range
Aobvious addition or synergistic effect, the prevention effect of composition is significantly improved than single dose, reduces the dosage of agricultural chemicals, subtracts
Lack influence of the agricultural chemicals to environment, reduce drug cost.
2nd, the present invention is provided a kind of diafenthiuron and each not phase of the active ingredient mechanism of action of pyridalyl Pesticidal combination
Together, the application of composition can delay or overcome the generation of pest resistance to insecticide, increase the service life, and be conducive to the Synthetic of insect
Reason.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention are more concise, present invention specific examples below
Illustrate, but the present invention is only limitted to absolutely not these embodiments.As described below is only the present invention preferably embodiment, is used only for
The description present invention, it is impossible to be interpreted as limiting the scope of the present invention.It should be pointed out that all in the spirit and principles in the present invention
Within any modification, equivalent and the improvement made etc., should be included within the scope of the present invention.Therefore, this hair
The protection domain of bright patent should be determined by the appended claims.
Content described in embodiment is weight percentage.
Preparation method embodiment 1：35% diafenthiuron pyridalyl wettable powder
It is well mixed entering in blender after above-mentioned material in proportion coarse crushing, then 35% is obtained after air-flow crushing
Diafenthiuron pyridalyl wettable powder.
Preparation method embodiment 2：35% diafenthiuron pyridalyl water dispersible granules
By above-mentioned formula, dry pulverization process, granulation, drying, screening preparation system obtain final product 35% diafenthiuron pyridalyl in proportion
Water dispersible granules.
Preparation method embodiment 3：18% diafenthiuron pyridalyl suspending agent
Above-mentioned material is crushed in advance in proportion, grinding in sand mill is added, system is allocated after high shear mixing
Obtain 18% diafenthiuron pyridalyl suspending agent.
Preparation method embodiment 4：22% diafenthiuron pyridalyl aqueous emulsion
Mix after above-mentioned raw materials are crushed in proportion, be that 22% diafenthiuron pyridalyl water is obtained through high speed shearing emulsification
Emulsion.
Preparation method embodiment 5：14% diafenthiuron pyridalyl microemulsion
Mix after above-mentioned raw materials are crushed in proportion, after being sufficiently stirred for dissolving, 100% is complemented to deionized water, continue
Stirring is obtained 14% diafenthiuron pyridalyl microemulsion to transparent.Assays Example 1：Indoor joint toxicity measuring
Experiment
Test medicine uses 97% diafenthiuron active compound, 91% pyridalyl active compound.
The diamondback moth larvae that field gathers is put into the Chinese cabbage seedling being ready for, after larvae pupation, pupa pad is collected into
In having a culture dish of moisturizing filter paper, it is put into spawning cage and sprouts wings by it, then the Chinese cabbage seedling of whole disk is put into and allows pickles in spawning cage
Moth larvae is laid eggs, and when often disk Chinese cabbage seedling falls ovum amount up to 500 or so, takes out Chinese cabbage seed plate, is placed on growth cabinet [temperature：24
~26 DEG C；Relative humidity 70%~80%；Illumination：14(L):10 (D)] in allow egg hatching, raise to 3 instar larvaes.
It is measured using the malicious blade method of folder：Beaten with the card punch of diameter 1cm and take leaf butterfly, be put into culture dish, moisturizing.With hair
Tubule dropper since low concentration, per leaf butterfly drop 1ul liquids, after after solvent volatilization and another leaf butterfly for scribbling gelatinized corn starch
Pairing is made the malicious leaf butterfly of folder, and making is finished and is put in the hole of 12 hole tissue culturing plates.4 repetitions are often processed, often repeats to be no less than
12 malicious leaf butterflies of folder, and the treatment of the corresponding organic solvent without medicament is set as control.Tissue culturing plate connects 1 in each hole
Head test worm, is placed in normal condition culture.After meeting 2~4h of worm, after test worm has taken food pastille leaf butterfly, added in cultivation plate hole clear
Clean feed continues to raise to investigating, and eliminates and has not eaten a test worm for complete leaf butterfly.Each dosage treatment test worm number 80.Treatment
48h investigation test worm death condition, records total borer population and dead borer population afterwards.
According to survey data, the corrected mortality of each treatment is calculated.And the co-toxicity coefficient of mixture is calculated according to the abundant methods of Sun Yun
(CTC values.If) control death rate ＜ 5%, do not correct；The control death rate is corrected between 5%~20%；Control is dead
Rate ＞ 20%, experiment need to reform.Logarithm value according to drug concentration (mg/L) is independent variable x, with the probit value of corrected mortality
It is dependent variable y, virulence regression equation is set up respectively, the LC of single dose and each proportioning mixture is calculated using DPS softwares50And its mixture
Co-toxicity coefficient.
Actual measurement toxicity index (ATI)=(standard agent LC50/ reagent agent LC50)×100
Theoretical toxicity index (TTI)=(percentage composition of A in the toxicity index × mixture of the A)+(toxicity index of B × mixed
The percentage composition of B in agent)
Co-toxicity coefficient (CTC)=[mixture surveys toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
The toxicity test result table of table 1, diafenthiuron and pyridalyl to diamondback moth
| Medicament title and weight ratio | LC50(mg/L) | ATI | TTI | CTC |
| Diafenthiuron | 13.782 | 100.00 | - | - |
| Pyridalyl | 1.753 | 786.20 | - | - |
| Diafenthiuron：Pyridalyl (10：1) | 6.521 | 211.35 | 162.38 | 130.16 |
| Diafenthiuron：Pyridalyl (5：1) | 5.421 | 254.23 | 214.37 | 118.60 |
| Diafenthiuron：Pyridalyl (3：1) | 4.251 | 324.21 | 271.55 | 119.39 |
| Diafenthiuron：Pyridalyl (1：1) | 2.173 | 634.24 | 443.10 | 143.14 |
| Diafenthiuron：Pyridalyl (1：3) | 1.697 | 812.14 | 614.65 | 132.13 |
| Diafenthiuron：Pyridalyl (1：5) | 1.513 | 910.91 | 671.83 | 135.59 |
| Diafenthiuron：Pyridalyl (1：10) | 1.392 | 990.09 | 723.81 | 136.79 |
As can be seen from Table 1, diafenthiuron and pyridalyl are respectively with 10:1、5：1、3:1、1：1、1：3、1：5、1：10 pairs small
Diamond-back moth CTC values are 130.16,118.60,119.39,143.14,132.13,135.59,136.79, illustrate diafenthiuron and pyridine worm
Propyl ether combination has synergy or summation action to diamondback moth larvae, and mixture can improve drug effect.
Assays Example 2：Diafenthiuron and the pyridalyl Pesticidal combination preventing and treating lepidoptera pest test of pesticide effectiveness
Test site is located at Huizhou mouth of a river town, in diamondback moth, beet armyworm harm peak period dispenser, using spraying
Method.Using 10% diafenthiuron suspension agent, 10.5% pyridalyl missible oil as comparison medicament, experiment sets 7 chemicals treatments altogether, often
3 repetitions of individual treatment.The cornerwise five points investigation insect population in area, 5 Brassica rapa Ls of every investigation are throughout managed before dispenser.Apply
3 days after medicine, respectively investigate a prevention effect within 7 days, record residual borer population, prevention effect, result of the test are calculated by Revision insect recluced rate
As shown in table 2.
Table 2, diafenthiuron and pyridalyl composition for preventing and controlling wild cabbage diamondback moth, beet armyworm result of the test
As can be seen from Table 2,35% diafenthiuron pyridalyl wettable powder, 35% diafenthiuron pyridalyl moisture
Shot agent, 18% diafenthiuron pyridalyl suspending agent, 22% diafenthiuron pyridalyl aqueous emulsion, 14% diafenthiuron pyridine worm
Propyl ether microemulsion prevention effect is better than 10% diafenthiuron suspension agent and 10.5% pyridalyl missible oil.Medicine is not found in experimentation
Evil situation, illustrates that diafenthiuron and pyridalyl composition improve prevention effect, reduces the dosage of agricultural chemicals, reduces agricultural chemicals
Influence to environment, reduces drug cost.
Claims (3)
1. a kind of diafenthiuron and pyridalyl Pesticidal combination, it is characterised in that：Active ingredient is diafenthiuron and pyridalyl, fourth
Ether urea is 1 with the weight ratio of pyridalyl:10、10:1、1:1、1:3 or 1:5, diafenthiuron and pyridalyl weight summation are in combination
Percentage by weight is 3~97% in thing.
2. a kind of diafenthiuron according to claim 1 and pyridalyl Pesticidal combination, it is characterised in that：The desinsection group
Compound is prepared as aqueous emulsion, microemulsion, suspending agent, wettable powder, one kind of water dispersible granules in practical application.
3. application of the diafenthiuron and pyridalyl composition described in claim 1 in agricultural pests are prevented and treated, described agricultural
Insect is Lepidoptera class pest.
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