CN1043119C - Remixed pesticide - Google Patents
Remixed pesticide Download PDFInfo
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- CN1043119C CN1043119C CN 92114668 CN92114668A CN1043119C CN 1043119 C CN1043119 C CN 1043119C CN 92114668 CN92114668 CN 92114668 CN 92114668 A CN92114668 A CN 92114668A CN 1043119 C CN1043119 C CN 1043119C
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- bollworms
- cotton
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Abstract
The present invention relates to a pesticidal composition which uses lambda cyhalothrin and phoxim as effective components, and the effective components are compounded with proper catalysts and solvents. The pesticidal composition is mainly used for preventing and treating cotton bollworms, and especially, the pesticidal composition has favorable effect of preventing and treating resistive bollworms and can replace the existing pyrethrin insecticides whose effects on killing insects are reduced because of drug resistance. In the composition, the dosage of each single component is obviously lower than the dosage of two singly used components, so the composition can obviously reduce the selection pressure of resistance. The present invention is favorable for postponing the resistance reaction of cotton bollworms for pyrethroid insecticides, particularly for lambda cyhalothrin, so the composition is an optimal composition for preventing and treating the resistive bollworms at present.
Description
The present invention relates to a kind of agricultural chemical insecticide-cyhalothrin, pesticide.
Rationally utilize existing agricultural chemicals, development is efficient, the composite novel formulation of low residual amount, it is the problem that causes the very big interest of people at present in the world day by day, it not only can save substantial contribution, manpower, the input of material resources, and can shorten research cycle and adapted to the needs of pest resistance to insecticide, Chinese patent CN1052590, CN1062864, CN1032480 discloses respectively and has used cypermethrin, decis, the pesticidal preparations of Belmark and phoxim compound, they are for murdering crops, grain, insects such as vegetables fruit tree have certain effect, but they are the pesticide resistance of various degrees all, according to continuous 10 years study on monitoring of inventor to China's main cotton region bollworm resistance, find the Shandong in cotton region, North China, area such as Hebei and Henan, cotton bollworm in 1991 to the resistance level of sumicidin up to 270～1360 times, to decis up to 28～114 times, in the generation of the anti-uncontrollable cotton bollworm of regional sumicidin of height with cause harm, the field efficacy of decis also obviously descends, cause output of cotton to be badly damaged, nineteen ninety, the Hebei province cotton lost nearly hundred million yuan, and ground output of cotton loss such as cotton region, North China in 1992 is 2～3 one-tenth according to estimates.
Though there is the mixture of multiple control cotton bollworm in China at present, but many deficiencies are arranged still, for example some mixture with sumicidin as its single agent, this class mixture has produced high-level resistance because of cotton bollworm to sumicidin, not only can not continue the development of fenvalerate resistance, do not reach desirable control efficiency yet, some mixtures are arranged with some organic phosphor kinds to the high poison of people and animals, as parathion, parathion-methyl, isocarbophoses etc. are as its single agent, in use intoxication accident easily takes place in this class mixture, also some mixture not with the test worm kind of resistant bollworm as screening, has blindness with this class mixture control resistant bollworm in lab screening research.
The objective of the invention is to overcome the deficiency of prior art, a kind of mixture that can effectively prevent and treat resistant bollworm is provided, and help delaying cotton bollworm further developing to the pyrethroid insecticides resistance, prolonging such utilization of pesticides life-span guarantees cotton harvest, another object of the present invention is to screening to the fenvalerate resistance strain, cross resistance is popularized the research of resistance mechanism, verify cyhalothrin and sumicidin does not have cross resistance, result at resistance monitoring shows that also present cotton bollworm is lower to the resistance level of cyhalothrin, and technical scheme of the present invention for this reason is:
Select for use cyhalothrin as one of single agent of this mixture, selected for use in addition different with the cyhalothrin mechanism of action, safety low-poison to people and animals, to efficient organophosphorus insecticide one phoxim of not finding resistance so far both at home and abroad of cotton bollworm as two of single agent of this mixture.
In general, two or more insecticide is used with, synergy, addition, three kinds of results of antagonism may appear, the discrimination standard of synergistic effect is that co-toxicity coefficient is obviously greater than 100, the inventor adopts inside and outside mixture screening technique-co-toxicity coefficient assay method of generally acknowledging, at the indoor material that the high anti-cotton bollworm system of sumicidin is measured as prescription, the result shows mixture that cyhalothrin adds phoxim to this bollworm resisting tool obvious synergistic effect, and co-toxicity coefficient is 181.6.
1, cyhalothrin of the present invention, pesticide composition (by active ingredient V/V) are:
Cyhalothrin 0.5～2%
Phoxim 18～50%
Emulsifier 1206# 8～15%
Dimethylbenzene adds to 100%
2, technological process
By best proportioning cyhalothrin, phoxim crude, emulsifier 1206# and dimethylbenzene being added in the retort (or blender), is under 35～40 ℃ of conditions in temperature, fully stirs 30～60 minutes, obtains 20～50% cyhalothrins, pesticide.
The present invention compares with existing mixture has following characteristics:
(1) antagonism cotton bollworm of the present invention has fabulous control efficiency, field test results shows, to obvious high 40% octyl-cyanogen cream (phoxim adds the sumicidin mixture) of four generations of cotton bollworm control efficiency, 40% nuvacron missible oil (nuvacron adds the chlorophos mixture), 2.5% cyhalothrin missible oil (single agent) etc., and have tangible guarantor cotton buds and bolls and effect of increasing production (annex 2).
(2) safety low-poison to people and animals.
(3) drug cost is used a little less than 2.5% cyhalothrin missible oil list.
(4) since in the mixture consumption of each single agent be starkly lower than the consumption of two single agent when using separately respectively, can obviously reduce the resistance selection pressure, therefore this mixture helps delaying cotton bollworm to pyrethroid insecticides, especially to the development of cyhalothrin resistance, it is an a kind of desirable mixture of preventing and treating resistant bollworm at present.
Description of drawings:
Figure cyhalothrin, pesticide process flow diagram.
Embodiment: (is example to produce one ton)
Take by weighing 5～20 liters of cyhalothrins (by active ingredient, down together), 180～500 kilograms of phoxims, 80～150 liters of emulsifier (1206#), dimethylbenzene fills up 1000 liters in retort (or blender), under 35～40 ℃ after stirring in 30～60 minutes, put into hold-up tank metering packing.
Claims (1)
1, a kind of composition pesticide cyhalothrin, pesticide is characterized in that active ingredient (V/V) is:
Cyhalothrin 0.5～2%
Phoxim 18～50%
Emulsifier 1206# 8～15%
Dimethylbenzene adds to 100%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114668 CN1043119C (en) | 1992-12-23 | 1992-12-23 | Remixed pesticide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114668 CN1043119C (en) | 1992-12-23 | 1992-12-23 | Remixed pesticide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074335A CN1074335A (en) | 1993-07-21 |
| CN1043119C true CN1043119C (en) | 1999-04-28 |
Family
ID=4947048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114668 Expired - Fee Related CN1043119C (en) | 1992-12-23 | 1992-12-23 | Remixed pesticide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043119C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102657215A (en) * | 2012-03-30 | 2012-09-12 | 河北省农林科学院植物保护研究所 | Missible oil containing phoxim and fenvalerate and its preparation method and use |
-
1992
- 1992-12-23 CN CN 92114668 patent/CN1043119C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1074335A (en) | 1993-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |