CN105746519B - A kind of composition pesticide containing fenoxanil and lentinan - Google Patents
A kind of composition pesticide containing fenoxanil and lentinan Download PDFInfo
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- CN105746519B CN105746519B CN201610221592.9A CN201610221592A CN105746519B CN 105746519 B CN105746519 B CN 105746519B CN 201610221592 A CN201610221592 A CN 201610221592A CN 105746519 B CN105746519 B CN 105746519B
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- lentinan
- fenoxanil
- composition pesticide
- rice blast
- pesticide containing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
- A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
- A01N39/04—Aryloxy-acetic acids; Derivatives thereof
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of composition pesticide containing fenoxanil and lentinan, effective component is by following weight ratio at being grouped as: fenoxanil 10-20%, lentinan 1-2%, wherein the weight ratio of fenoxanil and lentinan are as follows: 10-20:1-2.Composition pesticide of the invention is prepared into wettable powder, is mainly used for preventing and treating the rice blast of rice, and formula synergy is significant, advantageously reduces pesticide cost, and be conducive to improve the disease resistance of crop.
Description
Technical field
The present invention relates to technical field of pesticide, more particularly to a kind of composition pesticide containing fenoxanil and lentinan.
Background technique
Fenoxanil, English common name are as follows: fenoxanil belongs to benzene oxanamide class fungicide, and the mechanism of action is melanin
Biosynthesis inhibitor mainly inhibits the activity of pillar spore ketone dehydrogenase, to inhibit Pyricularia oryzae melanin to be formed, mainly
For preventing and treating the rice blast of rice.With good absorbability and brilliant wholesomeness, also have very after application to the blade being newly unfolded
Good effect, application remains to inhibit falling off and dispersing for spore on scab for 40 days, so as to avoid superinfection.
Lentinan, English common name are as follows: fungous proteoglycan is a kind of polysaccharide with induction of resistance
Compound.Lentinan is applied to field of medicaments earliest, to improve the immunity of the human body, but similarly has in agriculture field good
Good anti-phytoviral activity, and it has been applied to production.Lentinan also has disease-resistant, bacteriostatic activity, plant can be induced to produce
The disease resistances substances such as raw and accumulation salicylic acid, protective plant protecting agent and chitinase.Existing research shows that lentinan can not only induce
Crop generates good induction of resistance to disease, also has certain inhibiting effect to phytopathogen, and can promote Crop Species
Son is sprouted and growth, and improves the anti-adversity ability of crop.
Generally germ bacterium source it is bigger, infect rapid situation under, inducer is administered alone and tends not in the short time
Inside induce the disease resistance of crop.And fungicide can control the occurrence and development of disease within a short period of time.Therefore it is sent out in disease
Sick initial stage applies fungicide and inducer mixed agent, can effectively control disease, and can improve the premunition of crop, is to plant
One of the effective measures of object disease comprehensive treatment.
Currently, fenoxanil there are no relevant report to the research that lentinan compounds.
Summary of the invention
The technical problem to be solved by the present invention is to, a kind of composition pesticide containing fenoxanil and lentinan is provided,
Synergy is significant, can effectively control rice blast, and can improve the disease resistance of crop.
The technical solution adopted by the present invention is that: a kind of composition pesticide containing fenoxanil and lentinan, effective component
By following weight percent at being grouped as: fenoxanil 10-20%, lentinan 1-2%, fenoxanil and lentinan
Weight ratio are as follows: 10-20:1-2, it is preferred that the weight ratio of fenoxanil and lentinan is 20:1.
The dosage form of composition pesticide preparation of the invention is agriculturally acceptable wettable powder.
Adjuvant used in composition pesticide of the invention include filler, binder, dispersing agent, wetting agent, disintegrating agent,
Colorant, stabilizer other are beneficial to the substance that effective component is stable in the formulation and drug effect plays.
Composition pesticide of the invention is suitable for preventing and treating the rice blast on rice.
The present invention has the following advantages that and significant technical effect:
(1) fenoxanil and lentinan have double action mechanism, and germ is not easy to produce resistance.
(2) indoor biometrics the result shows that, fenoxanil and lentinan compound according to a certain percentage has crop disease
Apparent synergistic effect advantageously reduces the amount of application of each single dose, helps to reduce pesticide cost.
(3) present invention is compounded by fenoxanil with the lentinan of inducer, can effectively prevent the same of crop disease
When can excite plant generate disease-resistant factor, be conducive to improve crop resistance.
Specific embodiment
Technical solution of the present invention and beneficial effect are described further with reference to embodiments, of the present invention hundred
Ratio is divided to be weight percentage.
One, example of formulations
Embodiment 1:11% fenoxanil lentinan wettable powder.Fenoxanil 10% is weighed by weight, it is fragrant
Mushroom polysaccharide 1%, alkyl benzene sulfonate calcium salt 3%, lignosulfonates 5%, white carbon black 20%, kaolin complements to 100%.
Embodiment 2:16% fenoxanil lentinan wettable powder.Fenoxanil 15%, perfume are weighed by weight
Mushroom polysaccharide 1%, alkyl benzene sulfonate calcium salt 3%, lignosulfonates 5%, kaolin complements to 100%.
Embodiment 3:21% fenoxanil lentinan wettable powder.Fenoxanil 20%, perfume are weighed by weight
Mushroom polysaccharide 1%, polycarboxylate 5%, lauryl sodium sulfate 8%, calcium lignosulfonate 5%, white carbon black complement to 100%.
Embodiment 4:12% fenoxanil lentinan wettable powder.Fenoxanil 10%, perfume are weighed by weight
Mushroom polysaccharide 2%, polycarboxylate 5%, lauryl sodium sulfate 5%, calcium lignosulfonate 5%, white carbon black complement to 100%.
Embodiment 5:22% fenoxanil lentinan wettable powder.Fenoxanil 20%, perfume are weighed by weight
Mushroom polysaccharide 2%, alkyl benzene sulfonate calcium salt 3%, lignosulfonates 5%, kaolin complements to 100%.
Above-described embodiment 1-5 is prepared in accordance with the following methods: by recipe requirements, the component being uniformly mixed, through air-flow
Pulverizer crushes, and can be prepared by the wettable powder of the lentinan containing fenoxanil.
Two, Application Example
Embodiment 1: the indoor toxicity test of fenoxanil, lentinan and mixture to rice blast
After prerun determines the effective inhibition concentration range of each medicament, each medicament is set 5 agent by active constituent content respectively
Amount processing, if clear water compares.It is carried out referring to " farm-chemical indoor determination test rule fungicide ", using mycelial growth rate method
Medicament is measured to the virulence of rice blast.Measure colony diameter with crossing method after 72h, calculate each processing net growth,
Mycelial growth inhibition rate.
Mycelial growth inhibition rate is converted into probit value (y), liquor strength (μ g/mL) is converted into logarithm (x), with minimum
Square law acquires virulence regression equation (y=a+bx), and thus calculates the EC of every kind of medicament50Value.
The synergistic effect of pharmacy mix is evaluated according to the co-toxicity coefficient method (CTC) of Sun Yunpei's Method, i.e. CTC≤80 are antagonism
Effect, 80<CTC<120 are summation action, and CTC>=120 are synergistic effect.Statistical result is as shown in table 1:
The indoor toxicity test of 1 fenoxanil of table, lentinan and its mixture to rice blast
Measurement result shows that co-toxicity coefficient (CTC) is big when the proportion of fenoxanil and lentinan is 10-20:1-2
In 120, wherein being up to 163.8 with the co-toxicity coefficient for matching as 20:1, synergistic effect is more apparent.
Embodiment 2: the field trial of the prevention and treatment rice blast containing the mixed agent of fenoxanil and lentinan
(1) test process: preparation obtained by test group 1#-5#, the embodiment 1-5 respectively in example of formulations；With 30%
Fenoxanil wettable powder is control group 1#；Using 5% lentinan wettable powder as control group 2#, the dosage respectively handled
It is administered according to identical cost budgeting.It tests while a blank control is set, each processing is all provided with 3 repetitions.
(2) test, investigation method: investigating disease index before rice blast early stage, medicine, 7 days after first time medicine
It is administered again 1 time, twice, each cell is watered even spraying by the water consumption for 50 kgs/acre for medication in total, 7 after the 2nd application
It and 14 days progresss Disease investigations, calculating preventive effect.
(3) test result: as shown in table 2, the preventive effect of 7 days test group 1#-5# is more excellent than control group 1#-2# after last application
15% or more；14 days after last application, the preventive effect of test group 1#-5# more excellent than control group 1#-2# 20% or more is effective to control
The development of rice blast.This explanation, significant using fenoxanil and lentinan synergy, mutual mixture can be reduced applying for each single dose
Dosage advantageously reduces dispenser cost.
Table 2: the field trial table of the mixed agent prevention and treatment rice blast of the lentinan containing fenoxanil
| Treatment agent | 7 days preventive effects (%) after last medicine | 14 days preventive effects (%) after last medicine |
| Test group 1# | 72.5 | 92.7 |
| Test group 2# | 73.6 | 91.5 |
| Test group 3# | 76.4 | 95.2 |
| Test group 4# | 72.8 | 94.6 |
| Control group 5# | 74.3 | 92.6 |
| Control group 1# | 54.6 | 69.4 |
| Control group 2# | 52.3 | 71.2 |
| Blank control | / | / |
Claims (4)
1. a kind of composition pesticide containing fenoxanil and lentinan, which is characterized in that the weight of fenoxanil and lentinan
Measure ratio are as follows: 10-20:1-2.
2. the composition pesticide containing fenoxanil and lentinan according to claim 1, which is characterized in that rice blast
The weight ratio of amide and lentinan is 20:1.
3. according to claim 1 or the composition pesticide described in 2 containing fenoxanil and lentinan, which is characterized in that
The weight percent of fenoxanil is 10-20%, and the weight percent of lentinan is 1-2%.
4. the composition pesticide containing fenoxanil and lentinan described in claim 3 is in the application for preventing and treating rice blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221592.9A CN105746519B (en) | 2016-04-08 | 2016-04-08 | A kind of composition pesticide containing fenoxanil and lentinan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610221592.9A CN105746519B (en) | 2016-04-08 | 2016-04-08 | A kind of composition pesticide containing fenoxanil and lentinan |
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| Publication Number | Publication Date |
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| CN105746519A CN105746519A (en) | 2016-07-13 |
| CN105746519B true CN105746519B (en) | 2019-02-01 |
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| CN201610221592.9A Active CN105746519B (en) | 2016-04-08 | 2016-04-08 | A kind of composition pesticide containing fenoxanil and lentinan |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106922678A (en) * | 2017-03-18 | 2017-07-07 | 深圳诺普信农化股份有限公司 | A kind of bactericidal composition |
| CN107047645A (en) * | 2017-04-14 | 2017-08-18 | 广西南宁益土生物科技有限责任公司 | A kind of bactericidal composition for preventing and treating rice blast |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101946772A (en) * | 2010-09-28 | 2011-01-19 | 李学员 | Combined pesticide for controlling rice blast |
| CN103210922B (en) * | 2013-04-15 | 2014-08-27 | 京博农化科技股份有限公司 | Bactericidal composition containing oligosaccharins and fenoxanil |
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Effective date of registration: 20181214 Address after: 272000 Fenghuangyuan Eco-Garden Courtyard, Nanzhang Street, Rencheng District, Jining City, Shandong Province Applicant after: Shandong Watson Liyuan Biotechnology Co., Ltd. Address before: 530000 room 3106, block C, hang Yang International City, No. 131, National Road, Qingxiu District, Nanning, the Guangxi Zhuang Autonomous Region. Applicant before: GUANGXI NANNING YITU BIOTECHNOLOGY CO., LTD. |
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