A kind of MTI-446 soluble liquid
Technical field
The invention belongs to technical field of pesticide, relate to a kind of soluble liquid, be specifically related to a kind of MTI-446 soluble liquid.
Background technology
China's formulations of pesticide are main with missible oil mainly for many years; A large amount of containing benezene solvents such as toluene, xylol that use in the missible oil production process; Not only to being that the producer, user cause health harm; And polluted agricultural land, waters, ecotope is done great damage, the use of this formulation product is just receiving the restriction of world's majority state.People pay attention to the research and development to the formulations of pesticide more when strengthening novel pesticide research.Soluble liquid with containing benezene not, dissolve each other with water, efficiently, low toxicity, safety, biorational and the characteristics good with Environmental compatibility, become one of direction of formulations of pesticide research and development.Though without benzene kind solvent, used the solvent that toxicity such as more amide-type, methyl alcohol, DMF, cyclohexanone and straight chain alcohol are high or have carcinogenic in the tradition soluble liquid product.Though toxic hazard is lower than benzene kind solvent, because consumption is big, the harm that human security and natural environment are caused also can not be ignored.
MTI-446 (dinotefuran), chemical name are (RS)-1-methyl-2-nitro-3-[(3-oxolane) monomethyl] guanidine, chemical constitution:
Chemical company develops the earliest by Mitsui, the third generation nicotinic insecticide of listing in 2002.Its desinsection wide spectrum can be prevented and treated various pests such as Semiptera, Lepidoptera and Hymenoptera, and has the significant interior osmosis of inhaling, and very low dosage promptly demonstrates insecticidal activity.This insecticide is fool proof to mammal, birds and aquatile, and crops are not had poisoning, can be used for the control of insect of numerous crops such as paddy rice, fruit tree and vegetables.The formulation of the MTI-446 pesticide product of using on the agricultural chemicals market at present mainly contains wetting powder, pulvis and granule, and these formulations cause dust pollution to environment easily.Do not find the patent and the non-patent literature report of relevant MTI-446 soluble liquid as yet.
Summary of the invention
For overcoming the deficiency of prior art, the present invention provides a kind of MTI-446 soluble liquid, to improve the drug effect of MTI-446 agricultural chemicals, reduces the pharmaceutical manufacturing cost, reduces the pollution to human and natural environment.
MTI-446 soluble liquid of the present invention, form by following component by weight percentage: MTI-446 1.5~45, emulsifier 5~25, stabilizing agent 1~5, synergist 1~5, cosolvent 2~20, surplus is solvent.
Solvent is rosin base vegetable oil, Jatropha curcas oil methyl esters, mixed methyl aliphatic ester, methyl oleate or epoxidized vegetable oil, or above-mentioned solvent combinations.Emulsifier is NPE, phenethyl phenol polyethenoxy ether, ammonium lauryl sulfate, xenol APEO or benzylphenol APEO, or the combination of mentioned emulsifier.Stabilizing agent is 2,6-di-tert-butyl methyl phenol, pentaerythritol ester, epoxidized soybean oil, epoxychloropropane or 2,6 di tert butyl 4 methyl phenol, or aforementioned stable agent combination.Synergist is AEO (JFC), poly silane, fast T, rosin, orangeade or azone.Cosolvent is that DMA 10N.N-dimethyl decyl amide helps, loose base oil ND-35 or Shuangzi pyrrolidones, or the combination of above-mentioned cosolvent.
The preparation method of MTI-446 disinsection soluble liquor does, the former powder of MTI-446 is dissolved in 2~20% the cosolvent, adds synergist, emulsifier, stabilizing agent and solvent, stirs under the normal temperature, leaves standstill 5 ~ 12 hours, filters, weighs, and is mixed with product.
The advantage of MTI-446 soluble liquid of the present invention is remarkable to the control efficiency of vegetable-crop pest-insects such as aphid and Bemisia tabaci, and cucumber Bemisia tabaci and cabbage aphid were proofreaied and correct preventive effect in 7 days, 14 days and reached 80%~90%.The complete mixing of soluble liquid and water has overcome the shortcoming that wetting powder and pulvis bring dust pollution.Use the plant resource green solvent to environment, people and animals and other beneficial organism safety, do not produce poisoning, insect is difficult for it is developed immunity to drugs.The field pesticides amount of application is few, has reduced medicinal cost.The soluble liquid bin stability is good, can deposit 1 year more than half.MTI-446 soluble liquid preparation technology of the present invention is simple, and low production cost is suitable for large area applications.
Embodiment
Below in conjunction with embodiment the present invention is described further, but the scope that the present invention requires to protect is not limited to the scope that embodiment representes.
Embodiment 1:
Take by weighing by weight percentage; MTI-446 1.5, cosolvent DMA 10N.N-dimethyl decyl amide 5, stabilizing agent 2,6-di-tert-butyl methyl phenol 1, synergist AEO 5, emulsifier NPE 10, solubilizer Jatropha curcas oil methyl esters to 100.After mixing, leave standstill 8 hours, filtration, process soluble liquid sample 1.
Embodiment 2
Take by weighing by weight percentage; MTI-446 45, cosolvent pine base oil ND-35 15, stabilizing agent epoxidized soybean oil 3, synergist rosin 10, emulsifier ammonium lauryl sulfate 2, NPE 9, solubilizer Jatropha curcas oil methyl esters to 100.After mixing, leave standstill 10 hours, filtration, process soluble liquid sample 2.
Embodiment 3
Take by weighing by weight percentage: MTI-446 20, cosolvent Shuangzi pyrrolidones cosolvent 12, stabilizing agent epoxychloropropane 3, synergist azone 5, emulsifier NPE 8, solubilizer epoxidized vegetable oil to 100.After mixing, leave standstill 9 hours, filtration, process soluble liquid sample 3.
Embodiment 4
Performance and control efficiency experiment
⑴ surface tension test is diluted to three concentration of 1000 times of liquid of 100 times, 500 times liquid respectively to sample 1~3, measures the reduced surface tension and changes.The more little expression sample of surface tension wetability is good more, and is good more in the crop surface spreadability, and control efficiency is good more, and the result sees table 1.The result shows that MTI-446 soluble liquid sample 1~3 of the present invention is superior to comparative sample 20% MTI-446 wetting powder.
Table 1 MTI-446 soluble liquid contact angle
⑵ control efficiency test, with sample 1~3 be diluted with water to 1500 times of liquid to the cucumber Bemisia tabaci spray, 2000 times cabbage aphid is sprayed, after dispenser, investigated residual insect population in the 7th day and 14 days respectively, calculation correction preventive effect, control efficiency see attached list 2.Result of the test shows; MTI-446 soluble liquid of the present invention is remarkable to the control efficiency of cabbage aphid and cucumber Bemisia tabaci; 3 days, 7 days correction preventive effects to cucumber Bemisia tabaci and cabbage aphid reach more than 80%, and 14 days preventive effects are more than 60%, apparently higher than contrasting article 20% MTI-446 wetting powder in the same old way.Wherein and sample 2 effects best, cucumber Bemisia tabaci 3 days, 7 days is proofreaied and correct preventive effect reaches more than 90%, cabbage aphid was proofreaied and correct preventive effect in 3 days reaches 89.3%, 7 day and proofread and correct preventive effect and reach 93.1%.Preventive effect was also more than 75% in 14 days.
Table 2 MTI-446 soluble liquid insecticidal effect