CN1043453C - Omethoate, dipterex emulsifiable concentrate - Google Patents
Omethoate, dipterex emulsifiable concentrate Download PDFInfo
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- CN1043453C CN1043453C CN97112261A CN97112261A CN1043453C CN 1043453 C CN1043453 C CN 1043453C CN 97112261 A CN97112261 A CN 97112261A CN 97112261 A CN97112261 A CN 97112261A CN 1043453 C CN1043453 C CN 1043453C
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- omethoate
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Abstract
The present invention provides binary recompounded pesticide which is 40% of omethoate dipterex emulsifiable concentrate for preventing and killing the insect pest of crops. The pesticide is prepared by recompounding omethoate and trichlorfon which have mutual synergetic performance and negative cross resistance relation, and the omethoate and the trichlorfon are then compounded with an effective amount of emulsifying agent, an auxiliary agent, a solvent, etc. The product is novel pesticide with high efficiency and broad spectrum, has strong functions of contact killing, stomach toxicity, internal suction and fumigation, and prevents the nature of various larvae of lepidopters from being damaged.
Description
The present invention relates to a kind of the prevent and treat pesticide new variety-40% oxygen happy enemy missible oil of diseases and pests of agronomic crop and the application of compound method and this missible oil thereof.
In recent years.The damage by disease and insect of crop is on the rise, and the agricultural chemicals kind excrement of damage by disease and insect such as aphid, acarid that is used to prevent and treat crop is a lot, organic phosphates, chrysanthemum lipid, carbamic acid lipid etc.These agricultural chemicals are in kill pests, and protection crops aspect has played important function over a period to come.But, because a certain single agent agricultural chemicals of long-term use makes the insect gene produce mutation, produced pesticide resistance gradually with the effective fatal gene action that adapts to a certain single agent agricultural chemicals, brought very big difficulty for the work of controlling crop diseases and insect pests.In view of almost there not being the agent of a kind of agricultural chemicals list can prevent and treat drug-fast insect preferably now, vast farmers presses for a kind of pesticide new variety more efficiently.In order effectively to solve this difficult problem of crop disease and insect, except cultivating disease-resistant variety, outside the enhancement of field management, the agricultural chemicals of exploitation good disinsection effect is the task of top priority.Yet.The new agricultural chemicals in a synthetic place is studied the discussion of structure from chemosynthesis, from the insecticidal mechanism to the toxicological study, from the laboratory test to the field experiment.The time of needs several years or more than ten years, the cycle is long, can not solve the matter of great urgency of current crops prevention and elimination of disease and pests far away.
Purpose of the present invention is exactly in order to overcome weak point of the prior art, according to the operating position of present agricultural chemicals and the resistance situation of damage by disease and insect, utilizes the mutual synergistic effect of some agricultural chemicals and negative cross resistance to concern and stops duplicating, enlarging of resistant gene.Screen in the multiple at home insecticide, composite, in line with improving drug effect, reduce toxicity, reducing the principle that residual hazard is polluted, reduced cost, through series of indoor and field trial, filtered out wide spectrum, efficiently the happy missible oil of Recompounded pesticide new varieties-40% oxygen.
The present invention screens according to single agent of different cultivars and mixed drug effect.
The selection of l, insecticide
A, confession examination pesticide species; 40% missible oil of omethoate, 90% crystal chlorophos.
B, biological: wheat aphid for examination.
C, compound screening test: behind two kinds of mixed pesticides, it is very complicated to the co-toxicity effect of organism, and three kinds of situations are generally arranged; (1) the mixed virulence of medicament is bigger than the virulence summation that nose list toxic agent uses, and the seed selection effect claims synergistic effect.(2) mixed virulence is littler than being equipped with the independent virulence summation of using of single agent, and this effect claims antagonism.(3) mixed virulence is close with single agent virulence summation, and this effect claims summation action.
For mensuration is synergy after using with, antagonism or summation action, we are by the method for indoor bioassay, measure each single agent and are mixed into that the median lethal dose (LD50/LC50) to aphid stone calculates co-toxicity coefficient behind the mixture by a certain percentage, and method is as follows:
Wherein:
The theoretical toxicity index sum of the theoretical toxicity index of the single agent=theoretical toxicity index of the content mixture of single agent actual measurement toxicity index * single agent in being mixed=each single agent.
According to the theory of co-toxicity coefficient, when co-toxicity coefficient greater than 200 the time, the demonstration synergistic effect is arranged, certain synergistic effect is arranged, if between 70-150 summation action is arranged between 150-200.If less than 70 is antagonism.Co-toxicity coefficient was 197 after omethoate and chlorophos mixed after measured, reached remarkable synergy level.(for details see attached table)
Table 1
| Medicament | The ZD/50ug/ head | Co-toxicity coefficient |
| 40% missible oil of omethoate | 8.45×10-3 | |
| 90% chlorophos crystal | 8.5×10-2 | |
| The happy enemy of 40% oxygen missible oil | 3.89×10-2 | ?197.8 |
In sum, content of the present invention is that two kinds of agricultural chemicals have significant synergy and negative resistance effect after composite.Two kinds of former medicines are equipped with an amount of emulsifier, auxiliary agent, solvent etc. again and constitute the happy enemy of Recompounded pesticide new varieties-40% oxygen missible oil after mixing.
The key of this invention is the selection of two kinds of single agent agricultural chemicals and cosolvent and determining of proportioning.
Composition scope of the present invention is:
Omethoate 20-25% (weight)
Chlorophos 20-25% (weight)
Emulsifier 6-15% (weight)
Auxiliary agent 8-15% (weight)
Solvent 30-45% (weight)
Each component summation 100% (weight).
The present invention after two kinds of pesticide original medicines are measured successively, stirs in the suction reactor and blocks, and adds a certain amount of emulsifier, auxiliary agent, solvent etc. more successively, stirs, and after quality inspection is qualified, promptly obtains the happy missible oil of brown oily liquids 40% oxygen.Testing result sees table 2 for details.
Table 2
| Test event | Specification requirement | Test result |
| Outward appearance | Brown oily liquids does not have visible suspension and precipitation | Qualified |
| Omethoate content % | ????≥20.0 | ?20.5 |
| Chlorophos content % | ????≥20.0 | ?20.7 |
| Moisture % | ????≤0.5 | ?0.18 |
| Acidity is (with H 2SO 4Meter) | ????≤0.5 | ?0.37 |
| Stability of emulsion (diluting 200 times) | Qualified | Qualified |
| Low-temperature stability | Qualified | Qualified |
| Heat is hidden stability | Qualified | Qualified |
2, the physicochemical property of complex preparation
(1) emulsibility
The good emulsifying performance is to guarantee that crops evenly absorb, and improves one of leading indicator of insecticidal effect.According to the 4stability determination of GB1603 agricultural chemicals emulsion, under standard hard water condition, dilute 2000 times and observe the emulsification results, all there is not oil slick and precipitation is separated out.Test shows that the emulsifiability of complex preparation is good, can be with any dilution proportion in the effectively preventing effect.
(2) low-temperature stability: press the GB9557 standard test, low-temperature stability meets the requirements.
(3) heat storage stability: press GB9557 and measure, meet standard-required.
3, the happy enemy of 40% oxygen missible oil toxicity test
(1) acute oral toxicity is measured with horn method, judges that according to pesticide toxicity grading criteria this agricultural chemicals per os toxicity is medium poison level.
(2) the mucomembranous irritant test method shows according to defending prison (91) No. 17 civilian result of the tests:
1. it is 47.32 that acute eye stimulates high utmost point separate index number.
2. average index still is that tested animal does not have multiple mark phenomenon after 47.32,7 days after 4 days.
3. according to the mucous membrane irritation standard, belong to medium excitant.
4. percutaneous toxicity is measured with horn method,, toxicity grading standard test acute according to agricultural chemicals, and this agricultural chemicals percutaneous toxicity is a low toxicity.
Be the drug effect and the effective dose thereof of the happy enemy of checking the present invention 40% oxygen missible oil, application method is to the safety of crop, and is for the large tracts of land production application provides science data, existing as follows to the wheat aphid effect experiment:
1. reagent agent: the chlorophos of the happy enemy of 40% oxygen missible oil, 40% missible oil of omethoate, 90% crystal.
2. experimental scheme: 0.1 mu of experimental plot area, handle for 6 and repeat totally 24 sub-districts 4 times.
3. the test region is arranged: test medicine, contrast medicament and each randomized arrangement of blank, establish guard row around interval the reaching.
4. preventive effect investigation
(1) investigation method: every sub-district is demarcated 10 points at random, looks into 100 strains, puts down in writing aphid quantity respectively, calculates aphid and proofreaies and correct preventive effect.
(2) control time and number of times: look into the worm radix before the dispenser.After the dispenser 1 day, 3 days, 7 days, investigation aphid number was investigated 4 times altogether.(seeing Table 3)
Table 3
| Each is handled | 1 day preventive effect (%) behind the medicine | 3 days preventive effects (%) behind the medicine | 7 days preventive effects (%) behind the medicine |
| 1500 times of liquid of 40% oxygen happy enemy missible oil | ????80.8 | ????92.5 | ????95 |
| 1000 times of liquid of 40% missible oil of omethoate | ????70.4 | ????85 | ????90 |
| 1000 times of liquid of 90% crystal chlorophos | ????45 | ????56.2 | ????68 |
(3) poisoning investigation: observe after the dispenser that the happy enemy of 40% oxygen missible oil has no adverse effects to plant growth in 15 days, as can be seen from Table 2, the present invention has compared following distinguishing feature with prior art: the first, the happy enemy of 40% oxygen missible oil is apparently higher than single agent preventive effect.The second, the reagent agent is to crop and operating personnel and the no abnormal reaction of crop, and the peasant is easy to use, safe.Three, this medicament has higher preventive effect, and has solved resistance, has reduced dosage, has reduced cost.Four, the present invention is applicable to wheat, cotton, corn, beans, tobacco, fruit tree, flowers and part melon dish crop ultralow amount in early stage are used, and also can effectively prevent and treat wheat aphid, cotten aphid, suction oar worm, mythimna separata, bridging worm, blue or green worm, cotton bollworm, two spotted spider mite, corn borer, mite class etc.Five, the happy enemy of 40% oxygen missible oil is a kind of novel pesticide of efficient, wide spectrum, and it has strong tagging, stomach toxicity, interior suction, fumigation action, and squama wing and all kinds of larva also had certain anti-natural disposition destruction.
Claims (3)
1. one kind contains omethoate and chlorophos as the insecticide emulsifiable concentrate of active ingredient, can prevent and treat wheat, cotton aphid, it is characterized in that its composition and content are as follows:
Omethoate 20-25% (weight)
Chlorophos 20-25% (weight)
Emulsifier 6-15% (weight)
Auxiliary agent 8-15% (weight)
Solvent 30-45% (weight)
Each component summation 100% (weight)
2. according to the insecticide emulsifiable concentrate of claim 1, wherein, content of effective is 40%.
3. according to the insecticide emulsifiable concentrate of claim 1, wherein, omethoate content is 20%, and chlorophos content is 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97112261A CN1043453C (en) | 1997-07-17 | 1997-07-17 | Omethoate, dipterex emulsifiable concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97112261A CN1043453C (en) | 1997-07-17 | 1997-07-17 | Omethoate, dipterex emulsifiable concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1180480A CN1180480A (en) | 1998-05-06 |
| CN1043453C true CN1043453C (en) | 1999-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97112261A Expired - Fee Related CN1043453C (en) | 1997-07-17 | 1997-07-17 | Omethoate, dipterex emulsifiable concentrate |
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| Country | Link |
|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD248728A1 (en) * | 1986-05-09 | 1987-08-19 | Fettchemie Karl Marx Stadt Veb | INSECTICIDES SPRAY |
| CN1060387A (en) * | 1991-08-19 | 1992-04-22 | 太原市红星制药厂 | Oxychloride emulsion as pesticide |
| CN1067553A (en) * | 1992-07-09 | 1993-01-06 | 胡文均 | Dioxygen Chrysanthemum ester cut oil |
| CN1070795A (en) * | 1992-08-08 | 1993-04-14 | 胡文均 | Oxygen sulfur phosphorus insectcide compounding agent |
| RO107803B1 (en) * | 1990-10-01 | 1994-01-31 | Inst De Cercetari Si Amenajari | Sinergetic fungical composition |
-
1997
- 1997-07-17 CN CN97112261A patent/CN1043453C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD248728A1 (en) * | 1986-05-09 | 1987-08-19 | Fettchemie Karl Marx Stadt Veb | INSECTICIDES SPRAY |
| RO107803B1 (en) * | 1990-10-01 | 1994-01-31 | Inst De Cercetari Si Amenajari | Sinergetic fungical composition |
| CN1060387A (en) * | 1991-08-19 | 1992-04-22 | 太原市红星制药厂 | Oxychloride emulsion as pesticide |
| CN1067553A (en) * | 1992-07-09 | 1993-01-06 | 胡文均 | Dioxygen Chrysanthemum ester cut oil |
| CN1070795A (en) * | 1992-08-08 | 1993-04-14 | 胡文均 | Oxygen sulfur phosphorus insectcide compounding agent |
Non-Patent Citations (2)
| Title |
|---|
| 农药混用与混剂 1987.1.1 张瑞亭，化学工业出版社 * |
| 农药登记公告95 1996.1.1 农业部农药检定所50%敌畏氧乐系油 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180480A (en) | 1998-05-06 |
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