CN110178842A - A kind of pretilachlor and pyraclonil administer resistance barnyard grass composition and its application - Google Patents
A kind of pretilachlor and pyraclonil administer resistance barnyard grass composition and its application Download PDFInfo
- Publication number
- CN110178842A CN110178842A CN201910617423.0A CN201910617423A CN110178842A CN 110178842 A CN110178842 A CN 110178842A CN 201910617423 A CN201910617423 A CN 201910617423A CN 110178842 A CN110178842 A CN 110178842A
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- China
- Prior art keywords
- pyraclonil
- pretilachlor
- barnyard grass
- resistance
- composition
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- 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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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
- A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
-
- 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
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
Abstract
The invention discloses a kind of pretilachlors and pyraclonil to administer resistance barnyard grass composition and its application.The herbicidal composition can effectively prevent the transplanted rice field resistance gramineae weed divided by resistance barnyard grass for sociales, while have to rice safety；The dosage that can be significantly reduced reduces times for spraying, reduces field chemical control cost；Delay the generation of resistance weed and occurs again；It is simultaneous to control part broadleaf weeds and sedge weed, the advantages that expanding herbicide degrass spectrum.It is that one kind prevents and kill off the feasible herbicidal composition of transplanted rice field resistance gramineae weed at present.
Description
Technical field
The invention belongs to technical field of plant protection, are related to a kind of using pretilachlor and pyraclonil as the weeding of effective component
Agent composition, for preventing the rice field resistance gramineae weed divided by anti-penoxsuam barnyard grass for sociales.
Background technique
Rice in China sowing face accounts for the 1/4 of national cereal crops, and yield then accounts for more than half.For important cereal crops；
In addition to edible caryopsis, can starch processed, make wine, vinegar processed, rice bran can refine sugar, extracts oil, extract furfural, for industry and pharmaceutical；Rice straw
For good feed and paper making raw material and braided material, rice sprout and rice root can hyoscines.Nearly half population in the world, including it is almost whole
The population in a East Asia and Southeast Asia is all food with rice.
Paddy field weed seriously affects the yield and quality of rice, especially with Echinochloa Weed infestation most serious, such as barnyard grass
(Echinochloa crus-galli), without awns barnyard grass (E.crus-galli var.mitis), hard bran barnyard grass (E.glarescens)
Deng among these again with the harm most serious of barnyard grass.For a long time, control barnyard grass relies primarily on chemical herbicide and is prevented and kill off, because of its tool
Have the advantages that time saving and energy saving, profitable.But chemical herbicide, which is used for a long time, is easy to cause barnyard grass to develop drug resistance, especially active
Herbicide high, target site is single, such as acetolactate synthestase (Acetolactate synthase, ALS) inhibitor class
Penoxsuam played important function in terms of preventing and treating paddy field weed since it puts goods on the market.But when with using
Between increase, the practical effect of controlling in the field of penoxsuam is begun to decline.The main rice region in China gradually begins with barnyard grass to penoxsulam
Amine generates the report of resistance, so how effectively preventing and kill off the Echinochloa weeds of paddy field and solving its drug resistance is that we have to face
Pair problem.
Pretilachlor is chloroacetyl amine selectivity preemergence herbicide, and weeds absorb medicament by middle hypocotyl and plumule,
Inhibit cell division, interferencing protein synthesis also has indirect influence to the photosynthesis of weeds and respiration.Generally pass through soil
Earth processing or early stage cauline leaf process, for prevent and kill off paddy field barnyard grass, herba digitariae, semen euphorbiae, etc. annual gramineous weeds, to duck tongue
The small-sized seeds broadleaf weeds leaf such as grass, sweet wine intestines, Procumbent Falsepimpernel, false loosestrife has certain preventive effect.
Pyraclonil is double pyrazole class herbicide, belongs to proporphyrinogen oxidase (PPO) inhibitor, is that a kind of contact killing type removes
Careless agent is played by proporphyrinogen oxidase accumulation in vegetative nerve, and drug action is rapid, miscellaneous after 3-7 days after chemicals treatment
Grass can show withered dead symptom, to barnyard grass, except firefly Lin, needle spikesedge herb, Monochoria vaginalis, mexicana, ambatch, toothcup,
The preventive effect of the annual grassy weeds such as Procumbent Falsepimpernel class, tool awns cyperus iria is prominent, poor to the preventive effect of the weeds such as triquetrousc murdannia herb, aeschynomene.
It is an object of the invention to prevent and kill off rice transplanting field weed by herbicidal composition.
Above-mentioned purpose that the invention is realized by the following technical scheme:
Herbicidal composition, main component are pretilachlor and pyraclonil, are used to anti-divided by anti-penoxsuam barnyard grass
For the paddy field resistance gramineae weed of sociales.
Medicament application method: being administered for 5-7 days after rice transplanting, and progress soil, which is sprayed or gets rid of, to be applied
Compared with existing paddy field Common Herbicides, this herbicidal composition is had the advantage that
(1) the gramineae weeds synergistic effect such as antagonism barnyard grass is significant, and preventive effect is significantly better than when single dose is administered alone
Preventive effect.
(2) dosage can be significantly reduced, times for spraying is reduced, reduces field chemical control cost.
(3) generation of resistance weed can be delayed and occurred again.
(4) simultaneous to control part broadleaf weeds and sedge weed, expand degrass spectrum.
Detailed description of the invention
Figure in Figure of description indicates pretilachlor and pyraclonil composition antagonism barnyard grass ED90Equivalent line chart, on curve
The equivalent line segment of Distance Theory prevents and kill off most preferably matching for resistance barnyard grass apart from farthest coordinate points, as pretilachlor and pyraclonil composition
Than.
Specific embodiment
(1) pretilachlor and pyraclonil composition match screening test-laboratory test:
Laboratory test is in September, 2018 in November, 2018 in Agricultural University Of Nanjing's herbicide virulence and drug resistance laboratory
It is carried out in heliogreenhouse.
Reagent agent: pretilachlor；Pyraclonil.
For trying weeds: barnyard grass (anti-penoxsuam, hereinafter referred to as resistance barnyard grass, ED50Value is 65.90ga.i./hm2, relatively
Resistant multiple is 42.79, and resistance mechanism is target resistance, and target site is alanine -205- valine mutation, and seed is in 2012
Pick up from the double East Village barnyard grasses 1 in Xuancheng City, Anhui Province, high bridge town, Xuanzhou District October in year).
1. pretilachlor and the proportion screening test drug dose setting of pyraclonil composition
1.1 each single dose settings are as follows:
Pretilachlor (A): 0 (A0), 41.875 (A1), 83.75 (A2), 167.5 (A3), 335 (A4), 670 (A5) g a.i./
hm2；
Pyraclonil (B): 0 (B0), 12.5 (B1), 25 (B2), 50 (B3), 100 (B4), 200 (B5) g a.i./hm2。
1.2 pretilachlors and the proportion screening test drug dose setting of pyraclonil composition are as shown in table 1:
Table is arranged in 1 pretilachlor of table and pyraclonil composition proportion screening dosage
2. pretilachlor and pyraclonil composition match screening test process
The organoclay that herbicide was not used, pH value 6.7, organic matter are packed into the plastic cup that specification is 7 × 7 × 7cm
Content is 1.4%, adds water to saturation.The barnyard grass seed of full seed is selected, each plastic cup sows 20, sows the plastic cup of barnyard grass
One layer of fine earth is covered on seed, is placed in a greenhouse culture.After for 24 hours, spray-on process is taken to carry out soil treatment, control to the barnyard grass of sowing
Equivalent clear water is sprayed, each processing is repeated 4 times.By spraying using the 3WP-2000 of Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture's production
Type walking is raw to survey spray tower, main axis speed 96mm/r, spray height 300mm, the effective spraying swath 350mm of spray head, spray head stream
390mL/min, travel distance 1340mm, medicine liquid volume 20mL are measured, growth (temperature: 27 DEG C of daytime, evening 22 is placed in a greenhouse
℃)。
The fresh weight of resistance barnyard grass after medication 30 days in each plastic casing of investigation records evaluates pretilachlor and polybenzobisoxazole with isoboles
Joint suppression grass effect after oxalic acid dinitrile combination, first calculates separately out single dose pretilachlor, pyraclonil and pretilachlor and pyraclonil
Each dosage combination antagonism barnyard grass fresh weight inhibition rate.
Fresh weight inhibition rate %=(control fresh weight-processing fresh weight)/control fresh weight × 100
Professional statistics is carried out with DPS software again, two kinds of single doses of pretilachlor and pyraclonil is found out and inhibits resistance barnyard grass 90%
Dosage (i.e. ED90Value), corresponding pyraclonil inhibits the ED of resistance barnyard grass under pretilachlor each dosage processing90Value and pyraclonil
Corresponding pretilachlor inhibits the ED of resistance barnyard grass under each dosage processing90Value.Using pretilachlor dosage as abscissa, with pyraclonil dosage
For ordinate, the ED of two kinds of single dose antagonism barnyard grasses is marked in coordinate diagram90The coordinate points of value, and it is linked to be a line segment, as reason
By the equivalent line of both herbicide mixtures of upper pretilachlor and pyraclonil.Then marked in coordinate diagram each dosage of pretilachlor with
The ED of pyraclonil under each dosage of pretilachlor90It is worth third under coordinate points, each dosage of pyraclonil and each dosage of pyraclonil of composition
The ED of careless amine90It is worth the coordinate points of composition, simulates a curve.If these coordinate points are under theoretical equivalent line, for synergy
Effect is then antagonism on it, is then summation action close to theory equivalent line.Find out the equivalent line segment of Distance Theory on curve
Apart from farthest coordinate points, as pretilachlor and pyraclonil the composition optimum proportioning of preventing and kill off resistance barnyard grass.
Laboratory test results are as shown in the table:
The fresh weight inhibiting effect (%) of 2 pretilachlor pyraclonil composition antagonism barnyard grass of table
By table 2 and Figure of description it is found that pretilachlor and pyraclonil antagonism barnyard grass all have higher activity, and the third grass
After amine is combined with pyraclonil, antagonism barnyard grass shows synergistic effect.By the pretilachlor and pyraclonil of different ratio in table 2
The fresh weight inhibiting effect of composition antagonism barnyard grass is it is found that pretilachlor dosage is 167.5~670g a.i./hm2, pyraclonil agent
Measure 50~200g a.i./hm2When, antagonism barnyard grass fresh weight inhibition rate reaches 100%, and known to Figure of description pretilachlor with
Pyraclonil composition antagonism barnyard grass ED90Equivalent line chart is it is found that according to the evaluation of isoboles, and theoretically pretilachlor and polybenzobisoxazole are careless
The optimum proportioning that resistance barnyard grass is prevented and kill off in nitrile combination is 8.8: 1, comprehensively considers preventing and kill off cost, improving preventive effect for pretilachlor and pyraclonil
Etc. factors, field pretilachlor combined with pyraclonil prevents and kill off transplanted rice field resistance gramineae weed proportion be 8: 1 when the most
It is ideal.Therefore comprehensive laboratory test results, when the dosage of pretilachlor is in 400g a.i./hm2, the dosage of pyraclonil is in 50g
a.i./hm2When, it can effectively prevent the resistance gramineae weed divided by the paddy field that anti-penoxsuam barnyard grass is sociales.
(2) pretilachlor is with pyraclonil composition to safety testing-laboratory test of transplant field rice
Laboratory test is in September, 2018 in November, 2018 in Agricultural University Of Nanjing's herbicide virulence and drug resistance laboratory
It is carried out in heliogreenhouse.
Reagent agent: pretilachlor；Pyraclonil.
For studying object: long-grained nonglutinous rice (two excellent 669)；Japonica rice (force fortune round-grained rice 32)
Laboratory experiment process
1. the safety testing drug dose of transplant field rice is arranged in pretilachlor and pyraclonil composition
Composition is arranged the safety testing drug dose of rice as follows:
Pretilachlor+pyraclonil: 0+0,12.5+41.875,25+83.75,50+167.5,100+335,200+670g
a.i./hm2
2. pretilachlor is with pyraclonil composition to the safety testing process of transplant field rice
The organoclay that herbicide was not used, pH value 6.7, organic matter are packed into the plastic cup that specification is 7 × 7 × 7cm
Content is 1.4%, adds water to saturation.The rice paddy seed of full seed is selected, each plastic cup sows 10, sows the plastics of barnyard grass
Cup covers one layer of fine earth on seed, is placed in a greenhouse culture.After for 24 hours, spray-on process is taken to carry out soil treatment to the barnyard grass of sowing, it is right
According to equivalent clear water is sprayed, each processing is repeated 4 times.By spraying using the 3WP- of Nanjing Agriculturing Mechanization Inst., Ministry of Agriculture's production
2000 type walkings are raw to survey spray tower, main axis speed 96mm/r, spray height 300mm, the effective spraying swath 350mm of spray head, spray
Head flow 390mL/min, travel distance 1340mm, medicine liquid volume 20mL are placed in a greenhouse growth (temperature: 27 DEG C of daytime, evening
22℃)。
After medication 30 days, investigation records respectively handles rice fresh weight, and the difference analyzed between various dose with DPS software is aobvious
The selectivity index of work property and calculation composition evaluates pretilachlor and pyraclonil composition to rice by the two aspects
Safety.
Fresh weight inhibition rate %=(control fresh weight-processing fresh weight)/control fresh weight × 100
The calculation formula of selectivity index are as follows:
Selectivity index (Z)=crop ED10The ED of/weeds90
30 days safety evaluatios to japonica rice after 3 medicine of table
Note: * is the horizontal significance of difference of Duncan duncan's new multiple range method 0.05
30 days safety evaluatios to long-grained nonglutinous rice after 4 medicine of table
Note: * is the horizontal significance of difference of Duncan duncan's new multiple range method 0.05
5 pretilachlor of table is with pyraclonil composition to the selectivity index of rice
From table 3, table 4 as can be seen that test of significance is carried out by DPS software, as pretilachlor is combined with pyraclonil
The increase of agent amount does not increase the inhibiting effect of rice fresh weight significantly, and the mean fresh respectively handled is averaged with what is compareed
The significance of difference is not present between fresh weight, as can be seen from Table 5, pretilachlor and pyraclonil are to the selectivity index of japonica rice
21.80, it is 30.13 to the selectivity index of long-grained nonglutinous rice, is greater than 4.Therefore, by pretilachlor and pyraclonil composition to rice fresh weight
Safety evaluatio and selectivity index evaluation from the point of view of, pretilachlor and pyraclonil composition are safe to paddy growth.
Claims (7)
1. a kind of pretilachlor and pyraclonil administer resistance barnyard grass composition and its application, it is characterised in that can prevent divided by anti-five fluorine
Sulphur grass amine barnyard grass is the rice transplanting field weed of sociales.
2. according to claim 1, pretilachlor and pyraclonil administer resistance barnyard grass composition under suitable dosage ratio, right
Anti- penoxsuam barnyard grass preventive effect is 90% or more.
3. according to claim 1, pretilachlor and pyraclonil administer resistance barnyard grass composition under experimental setup dosage to water
Rice safety, no phytotoxicity generate.
4. pretilachlor and pyraclonil improvement resistance barnyard grass composition can according to claim 1, compared to using for single dose
Expand degrass spectrum, to gramineae weed, broadleaf weeds and sedge weed is simultaneous controls.
5. according to claim 1, when pretilachlor dosage is in 167.5~670g a.i./hm2, pyraclonil dosage is in 50-
200g a.i./hm2In range, i.e. pretilachlor: pyraclonil is at 8: 1, for preventing and kill off the anti-penoxsuam barnyard grass effect in field most
It is good.
6. pretilachlor according to claim 1 and pyraclonil administer resistance barnyard grass composition, it is characterised in that with pretilachlor
It is that the auxiliary agent allowed on effective component and pesticide is configured to any one dosage form with pyraclonil.
7. application according to claim 1, it is characterised in that pretilachlor administers making for resistance barnyard grass composition with pyraclonil
It is that soil is spraying or get rid of and apply processing with method.
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| CN201910617423.0A CN110178842A (en) | 2019-07-05 | 2019-07-05 | A kind of pretilachlor and pyraclonil administer resistance barnyard grass composition and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662001A (en) * | 2021-08-24 | 2021-11-19 | 安徽喜田生物科技有限公司 | Composition containing pyraclonil and pretilachlor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN104255750A (en) * | 2014-09-10 | 2015-01-07 | 广东中迅农科股份有限公司 | Herbicide composition containing pyraclonil and pretilachlor |
-
2019
- 2019-07-05 CN CN201910617423.0A patent/CN110178842A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201370A (en) * | 1995-11-15 | 1998-12-09 | 赫彻斯特-舍林农业发展有限公司 | Synergetic herbicidal mixture |
| CN104255750A (en) * | 2014-09-10 | 2015-01-07 | 广东中迅农科股份有限公司 | Herbicide composition containing pyraclonil and pretilachlor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662001A (en) * | 2021-08-24 | 2021-11-19 | 安徽喜田生物科技有限公司 | Composition containing pyraclonil and pretilachlor |
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Application publication date: 20190830 |