CN104267031A - Screening method of control agent for wheat scab - Google Patents
Screening method of control agent for wheat scab Download PDFInfo
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- CN104267031A CN104267031A CN201410499725.XA CN201410499725A CN104267031A CN 104267031 A CN104267031 A CN 104267031A CN 201410499725 A CN201410499725 A CN 201410499725A CN 104267031 A CN104267031 A CN 104267031A
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Abstract
The invention discloses a screening method of a control agent for wheat scab. The method mainly comprises the following steps: (1) using the control agent for a first time in the wheat flower bloom period; (2) after 24 hours from the completion of the first-time use of the control agent, artificially inducing the wheat scab to occur; (3) after 7 days from the completion of the first-time use of the control agent, using the control agent for a second time; (4) inspecting the disease condition of wheat and the prevention effect of the control agent. Compared with the prior art, the method mainly enables the wheat scab to occur by artificial induction instead of depending on the nature climate, so that chance factors in the test can be eliminated, the effective control agent can be screened, and the screening process of the control agent for the wheat scab can be accelerated.
Description
Technical field
The present invention relates to a kind of screening technique of wheat scab pesticide control, belong to disease research method field.
Background technology
Withered, the rotten wheat head of the wheat scab another name wheat head, red wheat head are one of Major Diseases of wheat.Wheat scab generally occurs in the whole world, and be mainly distributed in moist and semi-humid region, 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, brown foot rot, stalk are rotten and fringe is rotten, the most seriously fringe of wherein causing harm is rotten.Seedling corruption is caused by seed-borne fungi or soil, invalid body infects.Bud mutation was brown before this, and then root cap rots thereupon, and the sick seedling Huang of the lighter is thin, and severe one is dead, produces pink mustiness thing during withered seedling high humidity.
Wheat scab is typical meteorological venereal disease evil, and morbidity weight and flowering Early filling stage rainwater etc. is closely related, and the heavier incidence probability of the state of an illness is 1/10 ~ 1/5.Therefore, due to the contingency factor of natural climate, most time (as 2013) Chemicals test cannot obtain desired result, affects medicament and applies process.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of screening technique of wheat scab pesticide control.
Technical scheme: for achieving the above object, the invention provides a kind of screening technique of wheat scab pesticide control, it mainly comprises the steps:
(1) contain the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill;
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
As preferably, described wheat is selected with raising spoke wheat No. 4.
Preferred as another kind, described wheat planting is in booth.
Preferred as another kind, the method for described artificial induction's wheat scab morbidity is: after medication 24h, utilize rainer to spray water, and twice daily, interval 5h, each 1-2h, total sprinkling irrigation number of days is 12-16 days.
As preferred further, supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.6-0.8mm, working pressure 200 ~ 300Kpa.
Preferred as another kind, described pesticide control is selected from 40% ketone, 50% carbendazim, the fresh first sulphur spirit of 42% miaow, 30% penta azoles thiram or 2-cyano-3-amino-3-phenylancryic acetates just mostly.
Beneficial effect: relative to prior art, the inventive method mainly through the morbidity of artificial induction's wheat scab, thus does not rely on natural climate, eliminates the accidentalia in test, effectively preventing medicament can be screened, accelerate the screening process of wheat scab pesticide control.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
Embodiment 1:
Screening technique of the present invention:
(1) selecting with raising spoke wheat No. 4 wheats, greenhouse gardening, containing the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill, and method is: after medication 24h, utilizes rainer to spray water, twice daily, interval 5h, each 1h, total sprinkling irrigation number of days is 12 days; Supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.6mm, working pressure 200Kpa.
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
Embodiment 2:
(1) selecting with raising spoke wheat No. 4 wheats, greenhouse gardening, containing the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill, and method is: after medication 24h, utilizes rainer to spray water, twice daily, interval 5h, each 2h, total sprinkling irrigation number of days is 16 days; Supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.8mm, working pressure 300Kpa.
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
Embodiment 3:
(1) selecting with raising spoke wheat No. 4 wheats, greenhouse gardening, containing the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill, and method is: after medication 24h, utilizes rainer to spray water, twice daily, interval 5h, each 1.5h, total sprinkling irrigation number of days is 14 days; Supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.7mm, working pressure 250Kpa.
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
Embodiment 4:
(1) selecting with raising spoke wheat No. 4 wheats, greenhouse gardening, containing the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill, and method is: after medication 24h, utilizes rainer to spray water, twice daily, interval 5h, each 1.5h, total sprinkling irrigation number of days is 13 days; Supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.7mm, working pressure 220Kpa.
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
Embodiment 5:
(1) selecting with raising spoke wheat No. 4 wheats, greenhouse gardening, containing the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill, and method is: after medication 24h, utilizes rainer to spray water, twice daily, interval 5h, each 1.5h, total sprinkling irrigation number of days is 15 days; Supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.7mm, working pressure 280Kpa.
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
Experimental example wheat scab pesticide control of the present invention shaker test
Control group adopts non-greenhouse plantation, raises spoke wheat No. 4 wheats, under field conditions (factors), do not carry out the morbidity of artificial induction's head blight, the same the inventive method of administrated method with kind;
Table 1 wheat scab pesticide control of the present invention shaker test result
Result shows, and disease fringe does not all appear in the finally all administration of control group, cannot distinguish the preventive effect of each medicament.
And can be obtained by table 1 result, adopt Chemicals method of the present invention, each effect of chemical control all has certain difference, can sieve out the medicament with best prevention effect.Therefore, the inventive method mainly through the morbidity of artificial induction's wheat scab, thus does not rely on natural climate, eliminates the accidentalia in test, can screen effectively preventing medicament, accelerate the screening process of wheat scab pesticide control.
Claims (6)
1. a screening technique for wheat scab pesticide control, is characterized in that, it mainly comprises the steps:
(1) contain the phase in wheat flowering, start to use pesticide control for the first time;
(2), after first time medication 24h, artificial induction's wheat scab is fallen ill;
(3) first time medication uses pesticide control in 7 days afterwards for the second time;
(4) wheat incidence and pharmacy control efficacy is investigated.
2. the screening technique of wheat scab pesticide control according to claim 1, is characterized in that, described wheat is selected with raising spoke wheat No. 4.
3. the screening technique of wheat scab pesticide control according to claim 1, is characterized in that, described wheat planting is in booth.
4. the screening technique of wheat scab pesticide control according to claim 1, is characterized in that, the method for described artificial induction's wheat scab morbidity is: after medication 24h, rainer is utilized to spray water, twice daily, interval 5h, each 1-2h, total sprinkling irrigation number of days is 12-16 days.
5. the screening technique of wheat scab pesticide control according to claim 4, is characterized in that, supervisor's internal diameter of described rainer is 32cm, and a bore is 25cm, shower nozzle aperture 0.6-0.8mm, working pressure 200 ~ 300Kpa.
6. the screening technique of wheat scab pesticide control according to claim 1, is characterized in that, described pesticide control is selected from 40% ketone, 50% carbendazim, the fresh first sulphur spirit of 42% miaow, 30% penta azoles thiram or 2-cyano-3-amino-3-phenylancryic acetates just mostly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410499725.XA CN104267031A (en) | 2014-09-25 | 2014-09-25 | Screening method of control agent for wheat scab |
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| CN201410499725.XA CN104267031A (en) | 2014-09-25 | 2014-09-25 | Screening method of control agent for wheat scab |
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| CN104267031A true CN104267031A (en) | 2015-01-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405029A (en) * | 2016-11-15 | 2017-02-15 | 融安县植保植检站 | Cumquat epiphytic chlorococcum agentia screening test system |
| CN114158564A (en) * | 2021-12-13 | 2022-03-11 | 宁波市农业技术推广总站 | Method for controlling content of vomitoxin aiming at diseased wheat |
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| CN102405740A (en) * | 2010-09-21 | 2012-04-11 | 王徐 | Control method of wheat scab |
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| CN1899040A (en) * | 2005-01-31 | 2007-01-24 | 南京农业大学 | Method for preventing and controlling wheat bakanae disease by JS399-19 and tebuconazole |
| CN101491252A (en) * | 2009-03-10 | 2009-07-29 | 陕西韦尔奇作物保护有限公司 | Bactericial composition containing JS399-19 and carbendazim |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405029A (en) * | 2016-11-15 | 2017-02-15 | 融安县植保植检站 | Cumquat epiphytic chlorococcum agentia screening test system |
| CN114158564A (en) * | 2021-12-13 | 2022-03-11 | 宁波市农业技术推广总站 | Method for controlling content of vomitoxin aiming at diseased wheat |
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