CN104304300B - A kind of containing paichongding with the insecticidal synergistic composition of triaguron - Google Patents

Abstract

A kind of containing paichongding with the insecticidal synergistic composition of triaguron, containing active components A and active component B, active components A refers to paichongding, active component B refers to triaguron, wherein active components A is 1: 90～1: 90 with the weight ratio of active component B, its preferred weight ratio is 1: 55～1: 55, and two kinds of active components gross weight percentage composition in the composition is 5%～70%.Combination dosage form is one or more in suspending agent, microemulsion, aqueous emulsion.The present composition can be used for plant hopper or the aphid of preventing and treating harm multiple kinds of crops.

Description

A kind of containing paichongding with the insecticidal synergistic composition of triaguron

Technical field

The present invention relates to a kind of agricultural insecticidal composite, particularly relate to a kind of synergy containing paichongding and triaguron and kill Worm agent composition, can be used for preventing and treating agricultural pests, particularly plant hopper and aphid.

Background technology

Paichongding is efficient, the novel nicotinamide insecticide of wide spectrum, low toxicity of Ke Sheng group exploitation, is mainly used in preventing and treating same Wing mesh insect.Imidacloprid is one of insecticide variety of consumption maximum in the world at present, but owing to it uses the most frequently, Through causing significant resistance in the world, and the activity that paichongding antagonism inhales juice class pest is significantly higher than imidacloprid, because of This paichongding is one of preferable kind replacing Imidacloprid Contol ofCotton plant hopper and aphid.Paichongding chemical name is: 1-((6-chlorine pyrrole Pyridine-3-base) methyl)-5-propoxyl group-7-methyl-8-nitro-1,2,3,5,6,7-hexahydro imidazoles [1,2-a] pyridines.Its molecule is tied Structure formula is:

Triaguron, English common name (triaguron), this product belongs to azole height interior suction aphicide, and it is to cholinester Enzyme has rapid inhibitory effect, owing to being formed upwards in crop vascular, migrating downward into, therefore can protect whole plant.It kills Worm spectrum is wide, can be used in various crop except insects such as preventing and treating water rice hopper, leafhopper, thrips.

At present, the Main Means that agricultural chemicals makees agricultural pests as chemical prevention is applied widely.But, Long-Time Service list The agricultural chemicals of one kind, easily promotes insect to produce certain resistance, for this peasant household often through using the consumption side increasing the weight of agricultural chemicals Formula, to reach to eliminate the purpose of insect.But adopt and exist in this way, environment causes bigger pollution and agricultural chemicals residual The problem stayed, improves the drug cost of peasant household simultaneously the most indirectly.

There is not been reported for the complex composition of paichongding and triaguron at present.

Summary of the invention

It is an object of the invention to provide a kind of mixed ratio reasonable, prevention effect is good, the Synergistic fertilizer group that drug cost is low Compound.

Another object of the present invention is to the purposes providing this composition pesticide for preventing and treating plant hopper and aphid.

Technical scheme is as follows: a kind of synergic agricultural pesticide composition, it is characterized in that containing active components A and work Property composition B, active components A refers to that paichongding, active component B refer to triaguron, and the weight ratio of active component is 1: 90～1: 90, Preferably weight ratio is 1: 55～1: 55.Composition pesticide of the present invention can be configured to suspend according to method well-known in the art One or more in agent, microemulsion and aqueous emulsion, in preparation, the gross weight percentage composition of active ingredient is 5%～70%, its Remaining is to allow in agricultural chemicals to use and acceptable auxiliary element.

Preparation is prepared in a known manner, it is common that by abundant with surfactant, solvent or solid carrier for active component Mixing or grinding, granulation.The auxiliary agent used in the composition of the present invention includes solvent, cosolvent, dispersant, emulsifying agent, wetting Agent, stabilizer, antifreezing agent, thickener, defoamer, filler etc. and other be of value to that active ingredient is stable in the formulation to be sent out with drug effect The known substance waved is all conventional in pesticidal preparations or allows the various compositions used, and is not particularly limited, concrete composition and use Amount is determined by test according to recipe requirements.

Instant component is reasonable, good disinsection effect, and drug cost is low, and active components A and B have significant synergies, Compared with prior art, the beneficial effects of the present invention is: 1. compared with single dose, said composition antagonism insect, such as plant hopper and Aphid has obvious synergistic effect, improves prevention effect；2. two kinds of active ingredient mixtures, decrease dosage, thus reduce Cost and alleviate the pollution to environment；3. composition is made up of the active ingredient that two kinds of mechanism of action are different, is conducive to gram Take and delay the resistance to the action of a drug of insect；4. it is provided simultaneously with quick-acting and long-acting two major features.

Detailed description of the invention

Below in conjunction with example, the invention will be further described.But the present invention is only limitted to absolutely not these examples.All formulas Middle percentage or proportioning are weight percentage or weight ratio.The processing technology of the various preparation of the present composition and equipment are the public Known.

1, the preparation of aqueous emulsion

Being dissolved by active component solvent, stable antifreezing agent, to the most transparent as oil phase, is mixed by addition emulsifier for mixing with water Close homogeneous as aqueous phase.Under 3000～6000 revs/min of shear conditions, oil phase is added slowly in aqueous phase stirring 20～50 Minute, form the aqueous emulsion of favorable dispersibility.

Example of formulations 1:30% paichongding triaguron aqueous emulsion

Paichongding (active component) 8%

Triaguron (active component) 22%

Trimethylbenzene (solvent) 15%

Sodium alkyl benzene sulfonate (emulsifying agent) 8%

Glycerine (stablizing antifreezing agent) 5%

Water complements to 100%

2, the preparation of microemulsion

Active component solvent, cosolvent are dissolved, add emulsifier for mixing to the most transparent as oil phase, will stablize antifreezing agent Mix homogeneous as aqueous phase with water.Oil phase is slowly dropped in aqueous phase, stirs 30～60 minutes and form the micro-of favorable dispersibility Emulsion.

Example of formulations 2:40% paichongding triaguron microemulsion

Paichongding (active component) 10%

Triaguron (active component) 30%

Acetone (solvent) 15%

DMF (cosolvent) 5%

Phenethyl phenol polyethenoxy ether (emulsifying agent) 10%

Agriculture breast 500# (emulsifying agent) 5%

Ethylene glycol (stablizing antifreezing agent) 2%

Water complements to 100%

3, the preparation of suspending agent

Active component, dispersant, wetting agent, thickener and water are mixed, through sand mill in the ratio of formula successively Suspending agent is obtained after grinding.

Example of formulations 3:50% paichongding triaguron suspending agent

Paichongding (active component) 15%

Triaguron (active component) 35%

Sodium alkyl benzene sulfonate (dispersant) 6%

APES (wetting agent) 4%

Xanthans (thickener) 0.3%

Water complements to 100%

Biologicall test and test of pesticide effectiveness example:

1, paichongding Toxicity Determination to brown paddy plant hopper compounding with triaguron

The former medicine of test medicine paichongding uses the former medicine that Kesheng Group Co., Ltd., Jiangsu Prov. produces, the former medicine of triaguron to adopt Former medicine with Wuhan Yuan Cheng development in science and technology Co., Ltd.Test method is with reference to " People's Republic of China (PRC) agricultural industry criteria NY/T 1154.11-2008 " former medicinal organic solvent acetone is configured to mother liquor after, the twen-80 aqueous solution with 0.1% is by geometric ratio Method 5 series mass concentration of configuration.Brown Planthopper 3 nymph in age that examination worm is indoor feeding, physiological status is consistent.Choose reality Test the rice seedlings in tillering stage that the stalwartness cultivated room is consistent, grubbed out, clean, be cut into 10cm long band root rice stem, dry in the air at shady and cool Anhydrous to surface, rice stem is impregnated in the medicament configured 30s, taking-up is dried, and encases root moisturizing with absorbent cotton, and outsourcing is protected Fresh film, is placed in test tube, the strain of every test tube 3.Often process 4 repetitions, and set the process without medicament and do blank.Use pest sucking device Being moved in test tube by examination worm, 15, every test tube, mouth of pipe gauze covers.Examination worm after process is placed in temperature (25 ± 1) DEG C, phase To humidity 60%～80%, periodicity of illumination is to raise and observe under L: D=(16: 8) h.

Carry out the toxicity test of mixture according to mixed ratio by single dose toxicity test method.DPS software is used to calculate single dose And the LC of each proportioning mixture₅₀, calculate co-toxicity coefficient (CTC) according to the abundant method of Sun Yun.

Co-toxicity coefficient CTC computing formula is as follows: (with paichongding as standard agent, its toxicity index is 100):

The LC of toxicity index (the TI)=paichongding of triaguron₅₀The LC of triaguron₅₀×100

The LC of actual measurement toxicity index (the ATI)=paichongding of M₅₀The LC of M₅₀×100

TI × P paichongding of theoretical toxicity index (the TTI)=paichongding of M+triaguron TI × P triaguron

TTI × 100 of the ATI M of co-toxicity coefficient (the CTC)=M of M

In formula: M is the mixture of paichongding and triaguron different ratio

P paichongding is the ratio that paichongding is shared in mixture

P triaguron is the ratio that triaguron is shared in mixture

Joint toxicity measuring result to Brown Planthopper: be shown in Table 1

Table 1, paichongding joint toxicity measuring to Brown Planthopper compounding with triaguron

As seen from Table 1, paichongding is compounding with triaguron the highest synergistic effect to Brown Planthopper.Paichongding and azoles aphid When prestige proportioning is 1: 1, co-toxicity coefficient reaches more than 146.

2, paichongding and the triaguron various proportioning field efficiency test to Brown Planthopper.

Trial crops is paddy rice, and controlling object is Brown Planthopper.By equal to water respectively for embodiment 1,2,3 totally 3 kinds of medicaments Spraying treatment is carried out after even dilution, if medicament comparison and blank clear water comparison.Group arrangement in random district between process, every kind processes three times Repeat.1 day, 3 days and 7 days investigation number of pest after medicine, calculate the death rate and prevention effect, result of the test such as table 2 institute respectively Show.

1d, 3d and 7d field test results to Brown Planthopper after table 2 different disposal medicine

Note: in table, data are to repeat mean value 3 times.

1st day, 3 days, 1,2,3 pairs of Rice Browns of 7 days each example of formulations from the result of the test of table 2 it can be seen that after medicine The preventive effect of plant hopper, obviously higher than 10% paichongding suspending agent, the preventive effect of 24% triaguron missible oil two single dose, shows that two kinds of medicaments are multiple Add effect substantially.

3, paichongding and the triaguron various proportioning field efficiency test to wheat aphid.

Test controlling object wheat aphid.Spray after embodiment 1,2,3 totally 3 kinds of medicament dilutions uniform to water respectively Process, if medicament comparison and blank clear water comparison.Group arrangement in random district between process, every kind processes three times and repeats.Respectively after medicine 1 My god, 3 days and 7 days investigation number of pest, calculate the death rate and prevention effect, result of the test is as shown in table 3.

1d, 3d and 7d field test results to wheat aphid after table 3, different disposal medicine

Note: in table, data are to repeat mean value 3 times.

From the result of the test of table 3 it can be seen that after medicine the 1st day, 3 days, 7 days each example of formulations 1,2,3 are to little wheat aphid The preventive effect of worm, obviously higher than 10% paichongding suspending agent, the preventive effect of 24% triaguron missible oil two single dose, shows two kinds of composite reagents Synergy is obvious.

In sum, the present invention contains the Pesticidal combination of paichongding and triaguron, has the most anti-to planthopper, aphid Controlling effect, complex preparation not only increases preventive effect, and expands insecticidal spectrum, widens range, reduces cost, to multiple worm Evil plays the double effect controlled of a medicine, alleviates manpower and materials, improves productivity effect.So, the invention of this complex preparation is right with popularization Society's tool is of great significance.

Claims (4)

1. a synergic agricultural pesticide composition, it is characterised in that containing active components A and B, active components A refers to paichongding, Active component B refers to that the weight ratio of triaguron, active components A and B is 1: 10～10: 1, and two kinds of active components are in the composition Gross weight percentage composition is 5%～70%.

Pesticidal combination the most according to claim 1, it is characterised in that: the preferred weight ratio of active components A and B is 1: 5 ～5: 1.

3. according to the Pesticidal combination described in any one of claim 1 and 2, it is characterised in that: the formulation of described composition pesticide It it is the one in suspending agent, microemulsion and aqueous emulsion.

4. the purposes in preventing and treating plant hopper and aphid of the composition pesticide described in any one of claim 1 and 2.