CN103493839A - Bactericide composition for preventing and treating wheat scab - Google Patents
Bactericide composition for preventing and treating wheat scab Download PDFInfo
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- CN103493839A CN103493839A CN201310444327.3A CN201310444327A CN103493839A CN 103493839 A CN103493839 A CN 103493839A CN 201310444327 A CN201310444327 A CN 201310444327A CN 103493839 A CN103493839 A CN 103493839A
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Abstract
The invention discloses a bactericide composition for preventing and treating wheat scab and belongs to the technical field of chemical prevention and control on diseases. Effective components of the bactericide composition comprise a component A which is prochloraz-manganese chloride complex and a component B which is thiram, wherein the weight ratio of the component A to the component B is 1:50-50:1; the bactericide composition also comprises auxiliaries and a carrier besides the effective components; the effective components A and B account for 15-80 percent of the total weight of the bactericide; the auxiliaries account for 20-80 percent of the total weight of the bactericide; the carrier accounts for the rest of the total weight of the bactericide. The bactericide composition can be prepared into wettable powder and the like. The composite bactericide disclosed by the invention has a good preventing and treating effect on the wheat scab and the like. Compared with a conventional preventing and treating medicine, the bactericide composition has the advantages that the using amount of the bactericide composition can be reduced, the environment pollution and residues of agricultural products are reduced, and the drug resistance of a single bactericide can be delayed. Compared with a single dosage, the bactericide composition has the advantage that the cost can be reduced.
Description
Technical field
The invention belongs to the Techniques For Chemical Control field, relate to a kind of microbicide compositions of preventing and treating wheat scab.
Background technology
[0002] wheat scab (withered, the rotten wheat head of the another name wheat head, red wheat head), be one of Major Diseases of wheat.Wheat scab generally occurs in the whole world, mainly is distributed in moist and semi-humid zone, and especially the moistening rainy Temperate Region in China of weather is injured seriously.All can be injured to heading from seedling, mainly cause that seedling is withered, stem foot is rotten, stalk is rotten and fringe is rotten, wherein causing harm the most serious is the fringe corruption.Wheat scab not only causes serious production loss and quality impact to Wheat Production, the more important thing is that its sick wheat toxin affects food security, enjoys in many ways and pays close attention to.Head blight is caused by fusarium fungus, in the damnous while of output of giving wheat, also produce and take deoxynivalenol (being vomitoxin DON) as main mycotoxin, people and animals are had to larger harm, that edible sick wheat can cause is dizzy, fever, feel sick, the acute poisoning symptom such as diarrhoea, when serious, can cause bleeding, affect immunity and fertility etc., directly human and livestock health and life security are constituted a threat to, therefore, in wheat, sick wheat rate content reaches 4% and can not eat when above.
The control of wheat scab, China has mainly relied on benzimidazole germicide and the built agents thereof such as carbendazim since mid-term 70 year 20th century, is one of key measure of preventing and treating wheat scab.Zhou Mingguo (1992) is since the first Fusarium graminearum drug-fast strain in the discovery world, Haining, carry out year after year pesticide resistance on ,Su, Shanghai, Zhejiang, Hubei Province and other places and detected examination, find that pesticide resistance pathogenic bacterium colony ratio rises rapidly, become pathogenic dominant races at zhejiang and other places, disease resistance pathogenic distribution scope constantly enlarges simultaneously, from initial Zhejiang, has spread to Shanghai and Jiangsu most area.The benzimidazole germicide resistance problem has caused showing great attention to of the interior personage of industry, and the large generation of wheat scab in 2013, cause the significantly underproduction of wheat, therefore, the medicament of development, the control of exploitation head blight, very urgent.
Prochloraz-manganese chloride complex is a kind of imidazole fungicides.Be characterized in that fungicidal spectrum is wide, effect is strong; But cost is high, action site single (working by the biosynthesis that suppresses ergosterol), germ easily develops immunity to drugs.
Tmtd is a kind of aminodithioformic acid series bactericidal agent, is characterized in that cost is low, fungicidal spectrum is wide, action site is many, and germ is difficult for developing immunity to drugs, but control efficiency is not very satisfactory.
Prochloraz-manganese chloride complex is composite from tmtd is that different sterilization mechanisms combine, and enlarges fungicidal spectrum, delays drug-fast generation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of microbicide compositions of preventing and treating wheat scab.
A kind of microbicide compositions of preventing and treating wheat scab of the present invention, its active ingredient: A is that prochloraz-manganese chloride complex, B are tmtd, wherein the weight ratio of effective constituents A and B is 1:20-20:1.
A kind of microbicide compositions of preventing and treating wheat scab of the present invention can be prepared into the formulations such as wetting powder, suspending agent.
A kind of microbicide compositions of preventing and treating wheat scab of the present invention can be wetting powder, comprises the 15%-80% that A and B account for insecticidal total weight in its composition, also includes auxiliary agent and carrier in its composition; Described auxiliary agent accounts for the 20-80% of total formulation weight amount, and surplus is carrier.
Auxiliary agent described in above-mentioned wetting powder comprises wetting agent, dispersant, adsorbent, and wherein wetting agent is one or more in spaonin powder, sodium lignin sulfonate, neopelex; Described dispersant is sodium metnylene bis-naphthalene sulfonate (being called for short NNO); Described adsorbent is white carbon; Described carrier is one or more in kaolin, attapulgite.
Composite insecticide of the present invention is compared with conventional control rice grub medicament, has the following advantages: 1, reduce dosage, reduce the residual of environmental pollution and agricultural product; 2, can delay the pesticide resistance of rice fulgorid to single insecticide, 3, there are advantages quick-acting, holding effect, with single medicament, compare, can reduce costs.
Embodiment
Following examples are preferred condition, but active component of the present invention and proportioning, auxiliary element etc. are not limited to following examples, and in embodiment, all proportions by weight.
embodiment 1:
Prepare 51% tmtd prochloraz-manganese chloride complex wetting powder, each composition weight is:
Tmtd (active ingredient) 1g
Prochloraz-manganese chloride complex (active ingredient) 50g
Neopelex 3g
NNO 6g
White carbon 2g
Sodium lignin sulfonate 5g
Kaolin is supplied 100g
embodiment 2:
Prepare 51% tmtd prochloraz-manganese chloride complex wetting powder, each composition weight is:
Tmtd (active ingredient) 50g
Prochloraz-manganese chloride complex (active ingredient) 1g
Neopelex 3g
NNO 5g
White carbon 2g
Sodium lignin sulfonate 5g
Kaolin is supplied 100g
embodiment 3:
Prepare 50% tmtd prochloraz-manganese chloride complex wetting powder, each composition weight is:
Tmtd (active ingredient) 30g
Prochloraz-manganese chloride complex (active ingredient) 20g
Neopelex 3g
NNO 5g
White carbon 2g
Sodium lignin sulfonate 5g
Kaolin is supplied 100g
effect experiment:
To embodiment mono-, two, three prevented and treated white-backed planthopper the effect field control effectiveness test (in Table), test is processed: embodiment mono-, two, three medicament mu consumption 50 grams, 50% thiram wettable powder pulvis mu consumption 100 grams, 50% prochloraz-manganese chloride complex wetting powder mu consumption 50 grams, spray medicine when April wheat 10% flowering on the 26th, 50 kilograms of every mu of water consumptions, even spraying.After medicine 20 days, 6 points were investigated in every processing, every 300 strains, and result of the test shows, best with the control effect of three pairs of head blight of example.
Show the control efficiency of different medicaments to wheat scab
Annotate: in table, data are 3 times and repeat mean.
Claims (3)
1. a microbicide compositions of preventing and treating wheat scab, is characterized in that its effective constituents A is that prochloraz-manganese chloride complex, B are tmtd, and wherein the weight ratio of composition A and B is 1:50-50:1.
2. a kind of microbicide compositions of preventing and treating wheat scab according to claim 1, is characterized in that composition is wetting powder, comprises the 15%-80% that A and B account for insecticidal total weight in its composition, also includes auxiliary agent and carrier in its composition; Described auxiliary agent accounts for the 20-80% of total formulation weight amount, and all the other are carrier.
3. a kind of microbicide compositions of preventing and treating wheat scab according to claim 2, it is characterized in that above-mentioned auxiliary agent comprises wetting agent, dispersant, adsorbent, wetting agent described in wetting powder is one or more in spaonin powder, sodium lignin sulfonate, neopelex; Described dispersant is sodium metnylene bis-naphthalene sulfonate; Described adsorbent is white carbon; Described carrier is one or more in kaolin, attapulgite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444327.3A CN103493839A (en) | 2013-09-26 | 2013-09-26 | Bactericide composition for preventing and treating wheat scab |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310444327.3A CN103493839A (en) | 2013-09-26 | 2013-09-26 | Bactericide composition for preventing and treating wheat scab |
Publications (1)
| Publication Number | Publication Date |
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| CN103493839A true CN103493839A (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310444327.3A Pending CN103493839A (en) | 2013-09-26 | 2013-09-26 | Bactericide composition for preventing and treating wheat scab |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138338A (en) * | 2007-10-12 | 2008-03-12 | 湖南农业大学 | Bactericide agent composition for preventing and controlling fungoid diseases such as false smut |
| CN103039492A (en) * | 2013-01-04 | 2013-04-17 | 湖南农业大学 | Pesticide compound bactericide |
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2013
- 2013-09-26 CN CN201310444327.3A patent/CN103493839A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138338A (en) * | 2007-10-12 | 2008-03-12 | 湖南农业大学 | Bactericide agent composition for preventing and controlling fungoid diseases such as false smut |
| CN103039492A (en) * | 2013-01-04 | 2013-04-17 | 湖南农业大学 | Pesticide compound bactericide |
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Application publication date: 20140108 |