CN1083239C - Compound agent of cinmethylin and tricyclazole - Google Patents
Compound agent of cinmethylin and tricyclazole Download PDFInfo
- Publication number
- CN1083239C CN1083239C CN99101520A CN99101520A CN1083239C CN 1083239 C CN1083239 C CN 1083239C CN 99101520 A CN99101520 A CN 99101520A CN 99101520 A CN99101520 A CN 99101520A CN 1083239 C CN1083239 C CN 1083239C
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- CN
- China
- Prior art keywords
- tricyclazole
- cut
- chinese mugwort
- cinmethylin
- rice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The present invention relates to a new pesticide for resisting rice blast, which is prepared by mixing cinmethylin and tricyclazole as main components according to different proportions. The compound agent of cinmethylin and tricyclazole has the advantages of mycelial growth inhibition, spore germination reduction, low cost, wide adaptability, etc., and has wide prospect for popularization and use.
Description
The present invention relates to a kind of agricultural chemicals of blast resisting.
Rice blast is a kind of important disease of China paddy rice, spreads all over each rice district of China, and general mountain area overweights Plain, round-grained rice, glutinous rice and overweights long-grained nonglutinous rice, damage by disease and insect popular the fraction of the year, the general underproduction 10-20% in grave illness district, heavy reached at 40-50%, local serious field piece even No kernels or seeds are gathered, as in a year of scarcity.Paddy rice all can fall ill each breeding time, and the panicle blast loss that especially takes place between rice ear sprouting period is heavier.Present control rice blast medicament preferably has 20% tricyclazole wettable powder; No. 1 emulsion of 40% Fuji and 50% iprobenfos missible oil; compound drug has the compound tricyclazole; this medicine is a kind of stronger protective fungicide of interior absorption that has; can be rapidly by the root of paddy rice; stem; the leaf absorption also is transported to each one of rice strain; can stop germ to invade and reduce the generation of Pyricularia oryzae effectively; but control again after germ is invaded; effect obviously descends, and this is to use the shortcoming of this medicine, and Fuji also is for No. 1 a systemic fungicide; rice blast there is special efficacy; paddy rice absorbs and accumulates on leaf texture, concentrates on cob and skill round-grained rice especially, thereby suppresses the intrusion of germ; the effect of playing prevention and curing the disease; this medicine drug effect phase is longer, but Fuji costs an arm and a leg for No. 1, thereby actual to promote difficulty bigger.Iprobenfos is the old kind of control rice blast, toxicity is medium, inhale conduction in having, mainly be the interference cell membrane permeability, this medicine is general to the rice blast control, and one peculiar smell is arranged, therefore, safety interval can not be lower than 20 days, and distance was gathered in the crops near or the excessive meeting of dispenser makes the rice frowziness, thereby was eliminated substantially in recent years.The compound tricyclazole is added by sulphur that tricyclazole is composite to form, and sulphur itself is a kind of protective fungicide, and undesirable to the rice blast control, the main feature of this medicine is a low price, but control efficiency is general, so be unable to undergo the extensive generation of rice blast.
Purpose of the present invention just provides a kind of low toxicity, efficient, cheap, is fit to the agricultural chemicals of the treatment rice blast of popularization.
The object of the present invention is achieved like this, and Chinese mugwort is cut, tricyclazole is for composite dose to cut and the primary raw material of tricyclazole as novel pesticide effective ingredient (ai) 0.3gai-10gai that it is characterized in that ending and cut with Chinese mugwort; Tricyclazole mixes mutually from 3gai-20gai.
Chinese mugwort cut be American Cyanamid Company produce be used to prevent and kill off barnyard grass in paddy field, Monochoria vaginalis, fescue etc., the growth that suppresses sensitive plant tissue that act as to weeds makes it death.And the paddy rice drug resistance is very strong, enters after these do in the object, is metabolised to hydroxy derivatives, and with plant corpus in glucosides be combined into conjugated compound and lose toxicity.
1, to the inhibitory action of mycelial growth
Through measuring on the indoor cultivation base, Chinese mugwort is cut has fabulous inhibitory action to rice blast, is Y to the inhibition regression equation of mycelial growth
Chinese mugwort=2.6670+1.3273x, r=0.9929, LC50=57.24ppm.And tricyclazole is Y
Three=1.6301+2.1217x, r=0.9632, LC50=38.75ppm.
2, to the influence of sporulation quantity
Under 50ppm concentration, can not produce spore after the sporulation quantity Chinese mugwort is cut processing on the pastille medium, tricyclazole is handled the back microscopy and is found to have 1-2 spore, and it is strong that Chinese mugwort is cut the energy force rate tricyclazole that suppresses spore.
3, to the influence of spore germination
Chinese mugwort is cut under 10ppm, and spore germination rate is 32.94%, and tricyclazole is 55.21%; Under 100ppm, Chinese mugwort is cut and handles spore germination rate is 1.29%, and tricyclazole is 34.35%, and Chinese mugwort is cut the sprouting inhibition of spore more much better than tricyclazole.
Comprehensively to mycelial growth, suppress spore germination and sporulation quantity, Chinese mugwort is cut more effective than tricyclazole, from the characteristics of rice blast infringement, suppresses spore germination and reduces that to produce the spore number more important than suppressing mycelial growth.Chinese mugwort is cut the inhibition effect highly significant to spore germination and product spore, and tricyclazole has prevention effect, suppresses to sprout the mycelial growth of spore, and interior absorption is stronger, and two medicines are composite after measured has significant synergies, and its malicious coefficient reaches 275.84.
The result of the test of field control rice panicle blast shows that Chinese mugwort is cut, composite dose of preventive effect of tricyclazole can reach 81.4-95.5%, and the tricyclazole preventive effect is 61.8-82.3%, and preventive effect is used tricyclazole apparently higher than single, and cost is also low than tricyclazole, has good popularization and application prospect.
Claims (1)
1, Chinese mugwort is cut, composite dose of tricyclazole is to cut and the primary raw material of tricyclazole as novel pesticide with Chinese mugwort, and it is characterized in that: the effective ingredient (ai) that Chinese mugwort is cut is 0.3gai-10gai; Tricyclazole 3gai-20gai mixes mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99101520A CN1083239C (en) | 1999-01-03 | 1999-01-03 | Compound agent of cinmethylin and tricyclazole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99101520A CN1083239C (en) | 1999-01-03 | 1999-01-03 | Compound agent of cinmethylin and tricyclazole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1259283A CN1259283A (en) | 2000-07-12 |
| CN1083239C true CN1083239C (en) | 2002-04-24 |
Family
ID=5270495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99101520A Expired - Fee Related CN1083239C (en) | 1999-01-03 | 1999-01-03 | Compound agent of cinmethylin and tricyclazole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083239C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360018C (en) * | 2005-09-15 | 2008-01-09 | 南京第一农药有限公司 | Germicide composition containing trichlamide and tricyclazole and its application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034467A (en) * | 1988-01-26 | 1989-08-09 | 先灵公司 | Benfuresate (benfure sate) composition |
| CN1037257A (en) * | 1988-01-13 | 1989-11-22 | 浙江工学院 | Tricyclazole, iprobenfo emulsion suspension and production method |
| CN1063600A (en) * | 1992-03-16 | 1992-08-19 | 江苏省农业科学院 | A kind of compound disinfectant |
| CN1187295A (en) * | 1997-10-08 | 1998-07-15 | 安徽嘉日成技术有限公司 | Fungicide for preventing and control of rice fungus diseases |
-
1999
- 1999-01-03 CN CN99101520A patent/CN1083239C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037257A (en) * | 1988-01-13 | 1989-11-22 | 浙江工学院 | Tricyclazole, iprobenfo emulsion suspension and production method |
| CN1034467A (en) * | 1988-01-26 | 1989-08-09 | 先灵公司 | Benfuresate (benfure sate) composition |
| CN1063600A (en) * | 1992-03-16 | 1992-08-19 | 江苏省农业科学院 | A kind of compound disinfectant |
| CN1187295A (en) * | 1997-10-08 | 1998-07-15 | 安徽嘉日成技术有限公司 | Fungicide for preventing and control of rice fungus diseases |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1259283A (en) | 2000-07-12 |
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