CN103404525B - Agricultural pesticide composition and applications thereof - Google Patents
Agricultural pesticide composition and applications thereof Download PDFInfo
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- CN103404525B CN103404525B CN201310360707.9A CN201310360707A CN103404525B CN 103404525 B CN103404525 B CN 103404525B CN 201310360707 A CN201310360707 A CN 201310360707A CN 103404525 B CN103404525 B CN 103404525B
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Abstract
The invention discloses an agricultural pesticide composition and applications thereof, which aim to solve the problems that pest mites produce serious drug resistance to the existing miticides, and due to the self characteristics of mites, the drug resistance of mites is rapidly developed, and the overlapping of generation is serious, so that the existing drugs difficultly meet the needs of agricultural production on mite killing. The agricultural pesticide composition comprises diafenthiuron and flufenoxuron, wherein the weight part ratio of the diafenthiuron to the flufenoxuron is (1:50)-(50:1). The composition disclosed by the invention takes diafenthiuron and flufenoxuron as main components, and then the main components and auxiliary components form pesticides comprising wettable powder, a suspending agent, water dispersible granules and dispersible liquor; experimental results show that the agricultural pesticide composition has high killing activity on mites and lepidoptera pests such as cabbage caterpillar, has an obvious synergistic effect, is safe for people and livestock, and also can achieve the purposes of delaying the drug resistance, reducing the cost and expanding the insecticidal spectrum. The agricultural pesticide composition disclosed by the invention has a good control effect, and is suitable for large-scale popularization and application.
Description
Technical field
The present invention relates to pesticide field, especially a kind of agricultural insecticidal composite and application thereof, it has good killing action for the insect of crops, can meet the demand of modern agricultural production to agricultural chemicals.
Background technology
In agricultural production, insect can suck the root of crops, stem, leaf, fruit etc., causes and has a strong impact on to the growth of plant, when serious, even causes crops total crop failure, brings serious economic loss to peasant household.Therefore, crop pests is is effectively prevented and treated, for the economic interests and the grain security that ensure peasant household, significant.
At present, crop pests mainly comprises harmful mite etc., and its growth effect to crops is larger.Existing for preventing that the medicament that does harm to mite from mainly comprising: Avermectin, propargite, pyridaben, azacyclotin, spiral shell mite ester etc. on market.Because these medicaments are used continuously by long-term, thereby make evil mite produce comparatively serious pesticide resistance to this class medicament.Meanwhile, if aforementioned medicament is mainly aimed at into mite or mite, and if become the medicament of mite mite, ovum good drug efficacy less for mite class.On the other hand, mite class has the features such as individuality is little, reproduction speed is fast, growth cycle is short, cause its resistance development fast, and generation overlap is serious, adopts existing medicament to be difficult to meet agricultural production for the needs of killing mite class.Therefore, if can become each developmental stages such as mite mite, ovum all to have the agricultural chemicals of better drug effect for evil mite in the urgent need to a kind of, to meet the needs of agricultural production.
Summary of the invention
Goal of the invention of the present invention is: for evil mite, existing acaricide agent has been produced to comparatively serious pesticide resistance, and due to mite class own characteristic, cause its resistance development fast, and generation overlap is serious, existing medicament has been difficult to meet agricultural production for the problem of killing mite class needs, and a kind of agricultural insecticidal composite and application thereof are provided.Composition of the present invention is taking diafenthiuron, flufenoxuron as main component, form the agricultural chemicals including wetting powder, suspending agent, water dispersible granules, dispersible agent with auxiliary element simultaneously, experimental result shows, it has the higher activity of killing for lepidoptera pests such as mite class and cabbage caterpillars, and diafenthiuron, flufenoxuron cooperatively interact, and have obvious synergistic function, and to person poultry safety, can also reach and delay pesticide resistance, reduce costs, expand the object of insecticidal spectrum.The present invention, for control of insect, has good control efficiency, is suitable for large-scale promotion application.
To achieve these goals, the present invention adopts following technical scheme
A kind of agricultural insecticidal composite, comprises diafenthiuron, flufenoxuron, and the ratio of weight and number of described diafenthiuron, flufenoxuron is 1:50～50:1.
Also comprise acceptable auxiliary element.
Also comprise auxiliary agent, filler, the ratio of weight and number of each component is as follows: 1-50 part diafenthiuron, 1-50 part flufenoxuron, 5-20 part auxiliary agent, 30-75 part filler, described auxiliary agent is dodecyl benzoate, dodecane sulfonate, lauryl sulfate, naphthalene sulfonate, polyoxyethylene nonylphenol ether, ethylene glycol, xanthans, Sodium Benzoate, lignin, APEO formaldehyde condensation products, naphthalene sulfonate, fatty alcohol-polyoxyethylene ether, polycarboxylate, phosphate polyethers, triphen ethylhexyldithiophosphoric acid polyoxyethylene ether, cyclohexanone, propylene glycol monomethyl ether, one or more in n-butanol, described filler is fine particle calcium carbonate, white carbon, kaolin, one or more in calcium chloride.
The formulation of described agricultural insecticidal composite is the one of suspending agent, dispersible agent.
Also comprise auxiliary agent, water, the ratio of weight and number of each component is as follows: 1-50 part diafenthiuron, 1-50 part flufenoxuron, 10-60 part auxiliary agent, 30-70 part water, described auxiliary agent is dodecyl benzoate, dodecane sulfonate, lauryl sulfate, naphthalene sulfonate, polyoxyethylene nonylphenol ether, ethylene glycol, xanthans, Sodium Benzoate, lignin, APEO formaldehyde condensation products, naphthalene sulfonate, fatty alcohol-polyoxyethylene ether, polycarboxylate, phosphate polyethers, triphen ethylhexyldithiophosphoric acid polyoxyethylene ether, cyclohexanone, propylene glycol monomethyl ether, one or more in n-butanol.
The formulation of described agricultural insecticidal composite is the one in wetting powder, water dispersible granules.
As preferably, the ratio of weight and number of described diafenthiuron, flufenoxuron is 1:20～20:1.
Further, the ratio of weight and number of described diafenthiuron, flufenoxuron is 2:1.
The application of aforementioned agricultural insecticidal composite in preparation control mite class and cabbage caterpillar pesticidal preparations.
Diafenthiuron (diafenthiuron), chemical name is: 1-tertiary butyl-3-(2,6-diisopropyl-4-Phenoxyphenyl) thiocarbamide, under the effect of its mixed-functional oxidase under ultraviolet ray is irradiated or in polypide, be decomposed into a kind of carbodiimides, thereby the performance of nerve cell mitochondrial function in obstruction pest body, affects respiration and the power conversion of insect, finally makes insect ossified.
Flufenoxuron (flufenoxuron), chemical name is: 1-[4-(the chloro-α of 2-, α, the fluoro-p-toloxyl-2-fluorophenyl of α-tri-]-3-(2,6-difluorobenzene formyl) urea, it is for No. CAS 101463-69-8.It is chitinous synthetic that it can suppress insect cuticle, and insect can not normally be peeled or abnormal and dead.
The present invention is using diafenthiuron, flufenoxuron as active component, by cooperatively interacting of diafenthiuron, flufenoxuron, kill into the active function of mite mite, mite ovum if play, by both cooperatively interacting, can reach each development duration of control evil mite, delay drug-fast object.The present invention is as a kind of brand-new agricultural insecticidal composite, it has the higher activity of killing to lepidoptera pests such as evil mite and cabbage caterpillars, there is insecticidal spectrum wide, the double feature of controlling of worm mite, and the lasting period is long, and speed of action is fast, killing effect is obvious, low toxicity, to natural enemy insect and predacious mite safety, is the desirable medicament of integrated pest control simultaneously.
Using diafenthiuron, flufenoxuron as active component, add acceptable auxiliary element simultaneously, as auxiliary elements such as solvent, filler, auxiliary agents, according to the conventional preparation method of current agricultural chemicals and production technology, can be made into corresponding insecticide pesticide.The formulation of this agricultural insecticidal composite is the one in wetting powder, suspending agent, water dispersible granules, dispersible agent.
Experimental result shows, agricultural insecticidal composite prepared by the present invention, all there is the higher activity of killing for mite class, lepidoptera pest including cabbage caterpillar etc., between diafenthiuron, flufenoxuron, there is obvious synergistic effect, and to people and animals and crop safety, can also reach and delay pesticide resistance, reduce costs, expand the object of insecticidal spectrum.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is diafenthiuron and the toxicity test result figure of flufenoxuron to Tetranychus cinnabarinus of different proportion.
Fig. 2 is diafenthiuron and flufenoxuron mixed insecticide field control citrus red mite result of the test figure.
Fig. 3 is diafenthiuron and flufenoxuron mixed insecticide field control Tetranychus cinnabarinus result of the test figure.
Fig. 4 is diafenthiuron and flufenoxuron mixed insecticide field control cabbage caterpillar result of the test figure.
Embodiment
Disclosed all features in this specification, or step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Disclosed arbitrary feature in this specification, unless narration especially all can be replaced by other equivalences or the alternative features with similar object.,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
Embodiment 1 Wettable pesticide powder
Take respectively 500g diafenthiuron, 10g flufenoxuron, 50g dodecyl Sodium Benzoate, 60g dodecyl sodium naphthalene sulfonate, 380g precipitated calcium carbonate (being fine particle calcium carbonate), for subsequent use.
Each component is mixed, after mechanical crushing, again through air-flow crushing, then mix, make corresponding Wettable pesticide powder.
Embodiment 2 Wettable pesticide powders
Take respectively 10g diafenthiuron, 500g flufenoxuron, 50g dodecyl sodium sulfate, 50g lauryl sodium sulfate, 390g kaolin, for subsequent use.
Each component is mixed, after mechanical crushing, again through air-flow crushing, then mix, make corresponding Wettable pesticide powder.
Embodiment 3
Suspension pesticide: take respectively 400g diafenthiuron, 10g flufenoxuron, 40g sodium naphthalene sulfonate, 30g Nonyl pheno 7 ethers, 50g ethylene glycol, 2.5g xanthans, 4g Sodium Benzoate, 463.5g water, for subsequent use; Each component is mixed, mix through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter below 5 microns, obtain suspension pesticide.
Embodiment 4
Wettable pesticide powder: take respectively 10g diafenthiuron, 200g flufenoxuron, 70g lignin, 30g APEO formaldehyde condensation products, 50g white carbon, 640g kaolin, for subsequent use; Each component is mixed, through mechanical crushing, then through air-flow crushing, mix, make corresponding Wettable pesticide powder.
Embodiment 5
Wettable pesticide powder: take respectively 200g diafenthiuron, 10g flufenoxuron, 50g lauryl sodium sulfate, 40g sodium naphthalene sulfonate, 50g white carbon, 65g precipitated calcium carbonate, for subsequent use; Each component is mixed, through mechanical crushing, then through air-flow crushing, mix, make corresponding Wettable pesticide powder.
Embodiment 6
Suspension pesticide: take respectively 160g diafenthiuron, 80g flufenoxuron, 40g aliphatic alcohol polyethenoxy 4 ethers, 30g polycarboxylic acids sodium, 50g ethylene glycol, 3g xanthans, 4g Sodium Benzoate, 633g water, for subsequent use; Each component is mixed, mix through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter below 5 microns, obtain suspension pesticide.
Embodiment 7
Suspension pesticide: take respectively 80g diafenthiuron, 160g flufenoxuron, 40g polyoxyethylene 4 ether phosphates, 30g Nonyl pheno 7 ethers, 60g ethylene glycol, 3.5g xanthans, 4g Sodium Benzoate, 622.5g water, for subsequent use; Each component is mixed, mix through high speed shear, then by sand mill sand milling 2-3 hour, make average grain diameter below 5 microns, obtain suspension pesticide.
Embodiment 8
Pesticide water dispersible granule: take respectively 100g diafenthiuron, 100g flufenoxuron, 50g dodecyl sodium sulfate, 40g lauryl sodium sulfate, 40g modified lignin resin, 20g calcium chloride, 650g kaolin, for subsequent use; Each component is mixed, through mechanical crushing, then through air-flow crushing, mix, then through granulation oven dry, obtain pesticide water dispersible granule.
Embodiment 9
Dispersible agent agricultural chemicals: take respectively 100g diafenthiuron, 20g flufenoxuron, 120g DBSA amine, 100g triphen ethyl-phenol polyoxyethylene ether (agriculture breast 600#), 180g cyclohexanone, 60g propylene glycol monomethyl ether, 50g ethylene glycol, 370g water, by each component mixing and stirring, obtain dispersible agent agricultural chemicals.
Embodiment 10
Dispersible agent agricultural chemicals: take respectively 10g diafenthiuron, 50g flufenoxuron, 100g DBSA amine, 100g triphen ethylhexyldithiophosphoric acid polyoxyethylene ether, 150g cyclohexanone, 150g n-butanol, 50g ethylene glycol, 390g water, by each component mixing and stirring, obtain dispersible agent agricultural chemicals.
Result of the test below shows: the composition that the present invention is above-mentioned and corresponding agricultural chemicals have the insecticidal effect of Synergistic.
Test 1: the toxicity test of the composition of diafenthiuron and flufenoxuron to Tetranychus cinnabarinus
For trying target: if Tetranychus cinnabarinus mite.
Supply reagent thing: the composition of diafenthiuron (A) and the different proportion of composing of flufenoxuron (B).
Test method:
Appropriate diafenthiuron (A) and flufenoxuron (B) are made into designed ratio, then it is stand-by to be diluted to respectively 5 series concentration gradients with acetone.
Adopt slide infusion process, first process blank, then press test dose order from low to high and repeat aforesaid operations, every processing repeats for 4 times, 60 Tetranychus cinnabarinus of every repetition.
Data statistics and analysis:
Process latter 24 hours investigation examination worm death condition, and according to survey data, calculate the corrected mortality of each processing.And adopting the abundant method of Sun Yun to calculate the co-toxicity coefficient (CTC value) of mixture with reference to NY/T1154.7-2006, result is as shown in Figure 1.
The experimental result of Fig. 1 shows: the composition of diafenthiuron (A) and flufenoxuron (B) Different Weight proportion of composing, its co-toxicity coefficient is all greater than 120, shows synergistic effect.The weight ratio of what wherein synergistic effect was best is diafenthiuron and flufenoxuron is 2:1, and co-toxicity coefficient is 198.50.Taking diafenthiuron and flufenoxuron weight ratio, the mixed insecticide preparation as about 2:1 has carried out further field control effectiveness test, to evaluate its field practical application effect.
Test 2: diafenthiuron and flufenoxuron mixed insecticide field control citrus red mite
Test site: Nong Ke district of Mianyang, Sichuan city lives kwan-yin village.
Experimental field and weather condition: be experimental field selected in citrus red mite heavier experimental field carrying out occurs.Test after 1-7 days fine, the duration of test maximum air temperature is 29 DEG C, 20 DEG C of the minimum air temperatures, without rainfall.
Subjects: citrus red mite.
Trial crops: sweet orange.
Test agricultural chemicals: 24% diafenthiuron flufenoxuron SC(2:1): 100mg/L, 150mg/L,
30% diafenthiuron EC:375mg/L,
50g/L flufenoxuron DC:62.5mg/L,
Blank.
24% diafenthiuron flufenoxuron SC(2:1) refer to that diafenthiuron and flufenoxuron quality sum are the suspending agent of suspending agent gross mass 24%, and the mass ratio of diafenthiuron and flufenoxuron is 2:1.30% diafenthiuron EC refers to that the quality of diafenthiuron accounts for the dispersible agent of gross mass 30%.
Community arranges: community area is 3 fruit trees, establishes protection row around, repeats for 4 times; Arrange by random district group community, and the conditions such as each community growing way and water and fertilizer management are basically identical.
Spraying time and method: contain and send out phase dispenser (5.10 days) once in citrus red mite.
Control time and method: Shu east, south, west, north, every community, the tender tip of middle five positions mark, investigate altogether 25 movable mite quantity on blade.If endanger gentlyer, can increase investigation blade quantity.Before dispenser, carry out radix investigation, within after dispenser 1,3,7 day, carry out preventive effect investigation.Result of the test as shown in Figure 2.Fig. 2 is diafenthiuron and flufenoxuron mixed insecticide field control citrus red mite result of the test figure.
Illustrate: in Fig. 2, " a, b, c " is illustrated in and in file, makes Duncan/s multiple range test, same letter is illustrated in P=0.05 level without significant difference, has the significant difference of P=0.05 level between a, b, c letter representation successive.
The experimental result of Fig. 2 shows: diafenthiuron is better than contrasting medicament with flufenoxuron Recompounded pesticide to the control efficiency of citrus red mite.Complex preparation 100mg/L consumption 1,3,7 day preventive effect after medicine is respectively 85.07%, 88.01%, 91.39%, and the preventive effect of 150mg/L consumption is 87.55%, 90.41%, 93.68%, raises along with concentration increases preventive effect.According to experimental observation, do not find that reagent agent produces poisoning to trial crops.
Test 3: diafenthiuron and flufenoxuron mixed insecticide field control Tetranychus cinnabarinus
Test site: Yongming town, Economic Development Zone, Mianyang, Sichuan city.
Experimental field and weather condition: be experimental field selected in Tetranychus cinnabarinus just experimental field carrying out of Sheng phase occurs.Test after 1-7 days fine, the duration of test maximum air temperature is 30 DEG C, 22 DEG C of the minimum air temperatures, without rainfall.
Subjects: Tetranychus cinnabarinus.
Trial crops: cotton.
Test agricultural chemicals: 24% diafenthiuron flufenoxuron SC(2:1): 100mg/L, 150mg/L,
30% diafenthiuron EC:375mg/L,
50g/L flufenoxuron DC:62.5mg/L,
Blank.
Community arranges: community area: 30m
2, establish protection row around, repeat for 4 times; Arrange by random district group community, and the conditions such as each community growing way and water and fertilizer management are basically identical.
Spraying time and method: contain phase dispenser (6.10 days) once in Tetranychus cinnabarinus onset.
Control time and method: every community is determined the strain 30-50 sheet leaf of listing and investigated
Before dispenser, carry out radix investigation, within after dispenser 1,3,7 day, carry out preventive effect investigation.Result of the test as shown in Figure 3.Fig. 3 is diafenthiuron and flufenoxuron mixed insecticide field control Tetranychus cinnabarinus result of the test figure.
Illustrate: in Fig. 3, " a, b, c " is illustrated in and in file, makes Duncan/s multiple range test, same letter is illustrated in P=0.05 level without significant difference, has the significant difference of P=0.05 level between a, b, c letter representation successive.
The experimental result of Fig. 3 shows: diafenthiuron is better than contrasting medicament with flufenoxuron Recompounded pesticide to the control efficiency of Tetranychus cinnabarinus.Complex preparation 100mg/L consumption 1,3,7 day preventive effect after medicine is respectively 89.64%, 93.37%, 96.11%, and the preventive effect of 150mg/L consumption is 92.63%, 94.78%, 98.40%, raises along with concentration increases preventive effect.According to experimental observation, do not find that reagent agent produces poisoning to trial crops.
Test 4: diafenthiuron and flufenoxuron mixed insecticide field control cabbage caterpillar
Test site: Nong Ke district of Mianyang, Sichuan city lives kwan-yin village.
Experimental field and weather condition: be experimental field selected in experimental field carrying out that cabbage caterpillar just occurs.Test after 1-7 days fine, the duration of test maximum air temperature is 25 DEG C, 15 DEG C of the minimum air temperatures, without rainfall.
Subjects: cabbage caterpillar.
Trial crops: wild cabbage.
Test agricultural chemicals: 24% diafenthiuron flufenoxuron SC(2:1): 20g, 25g/mu,
30% diafenthiuron EC:50g/mu,
50g/L flufenoxuron DC:40g/mu,
Blank.
Community arranges: community area: 30m
2, establish protection row around, repeat for 4 times.Arrange by random district group community, and the conditions such as each community growing way and water and fertilizer management are basically identical.
Spraying time and method: in the dispenser of cabbage caterpillar initial phase once.
Control time and method: the sampling of 5 of every communities is investigated.Before dispenser, carry out radix investigation, within after dispenser 1,3,7 day, carry out preventive effect investigation.Result of the test as shown in Figure 4.Fig. 4 is diafenthiuron and flufenoxuron mixed insecticide field control cabbage caterpillar result of the test figure.
Illustrate: in Fig. 4, " a, b, c " is illustrated in and in file, makes Duncan/s multiple range test, same letter is illustrated in P=0.05 level without significant difference, has the significant difference of P=0.05 level between a, b, c letter representation successive.
Fig. 4 result surface, diafenthiuron is better than contrasting medicament with flufenoxuron Recompounded pesticide to the control efficiency of cabbage caterpillar.Complex preparation 20g/mu consumption is respectively 81.60%, 91.59%, 96.43% to the preventive effect of wheat aphid in 1,3,7 day after medicine, and the preventive effect of 25g/mu consumption is 85.91%, 92.59%, 97.95%, raises along with concentration increases preventive effect.According to experimental observation, do not find that reagent agent produces poisoning to trial crops.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination disclosing in this manual, and the arbitrary new method disclosing or step or any new combination of process.
Claims (9)
1. an agricultural insecticidal composite, is characterized in that, comprises diafenthiuron, flufenoxuron, and the ratio of weight and number of described diafenthiuron, flufenoxuron is 1:50 ~ 50:1.
2. agricultural insecticidal composite according to claim 1, is characterized in that, also comprises acceptable auxiliary element.
3. agricultural insecticidal composite according to claim 1, it is characterized in that, also comprise auxiliary agent, filler, the ratio of weight and number of each component is as follows: 1-50 part diafenthiuron, 1-50 part flufenoxuron, 5-20 part auxiliary agent, 30-75 part filler, described auxiliary agent is dodecyl benzoate, dodecane sulfonate, lauryl sulfate, naphthalene sulfonate, polyoxyethylene nonylphenol ether, ethylene glycol, xanthans, Sodium Benzoate, lignin, APEO formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, polycarboxylate, phosphate polyethers, triphen ethylhexyldithiophosphoric acid polyoxyethylene ether, cyclohexanone, propylene glycol monomethyl ether, one or more in n-butanol, described filler is fine particle calcium carbonate, white carbon, kaolin, one or more in calcium chloride.
4. according to agricultural insecticidal composite described in claim 1-3 any one, it is characterized in that, the formulation of described agricultural insecticidal composite is the one of suspending agent, dispersible agent.
5. agricultural insecticidal composite according to claim 1, it is characterized in that, also comprise auxiliary agent, water, the ratio of weight and number of each component is as follows: 1-50 part diafenthiuron, 1-50 part flufenoxuron, 10-60 part auxiliary agent, 30-70 part water, described auxiliary agent is dodecyl benzoate, dodecane sulfonate, lauryl sulfate, naphthalene sulfonate, polyoxyethylene nonylphenol ether, ethylene glycol, xanthans, Sodium Benzoate, lignin, APEO formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, polycarboxylate, phosphate polyethers, triphen ethylhexyldithiophosphoric acid polyoxyethylene ether, cyclohexanone, propylene glycol monomethyl ether, one or more in n-butanol.
6. according to agricultural insecticidal composite described in claim 1,2,5 any one, it is characterized in that, the formulation of described agricultural insecticidal composite is the one in wetting powder, water dispersible granules.
7. according to agricultural insecticidal composite described in claim 1,2,3,5 any one, it is characterized in that, the ratio of weight and number of described diafenthiuron, flufenoxuron is 1:20 ~ 20:1.
8. agricultural insecticidal composite according to claim 7, is characterized in that, the ratio of weight and number of described diafenthiuron, flufenoxuron is 2:1.
9. the application in preparation control mite class and cabbage caterpillar pesticidal preparations according to agricultural insecticidal composite described in claim 1-8 any one.
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