CN103039536B - Pesticide composition with functions of preventing and controlling nematodes - Google Patents
Pesticide composition with functions of preventing and controlling nematodes Download PDFInfo
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- CN103039536B CN103039536B CN201210577088.4A CN201210577088A CN103039536B CN 103039536 B CN103039536 B CN 103039536B CN 201210577088 A CN201210577088 A CN 201210577088A CN 103039536 B CN103039536 B CN 103039536B
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- tagetis erectae
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Abstract
The invention relates to a pesticide composition with functions of preventing and controlling nematodes. The pesticide active ingredients comprise fosthiazate and marigold extract. The fosthiazate and the marigold extract can be processed into granules and are applicable to prevention and control of the nematodes. After the fosthiazate and the marigold extract are compounded, obvious synergism is achieved, the prevention and control effect is improved, the dosage of the pesticide is reduced, the environmental pollution caused by the pesticide is reduced, and the resistance of the nematodes on the fosthiazate and the marigold extract is reduced.
Description
Technical field
The invention belongs to composition pesticide technical field, be specifically related to a kind of composition pesticide being active ingredient with fosthiazate and Flos Tagetis Erectae extract.
Background technology
Plant nematode mainly comprises: Meloidogyne (Meloidogyne), kidney shape Turbatrix (Rotylenchulus), cyst roundworm [Heterodera (Heterodera)], root spot nematode (short not Turbatrix (Pratykenchus)), causing harm of nematode significantly can reduce the absorption of Plant To Nutrient and moisture, nematode plant of causing harm causes wound, causes phytopathogen to invade.
The chemicals of current control nematode have the high-toxic pesticides such as phonamiphos, carbofuran, terbufos, cadusafos, and this type of agricultural chemicals is because of long-term single use, and nematode is comparatively large to its pesticide resistance, and environmental pollution causes a hidden trouble.
Fosthiazate, English common name fosthiazate, has and tags and systemic action, can be absorbed by plant roots and upwards conduct.Toxicity is lower, meets export of farm produce standard, is mainly used in preventing and treating nematode, aphid etc., and to root-knot nematode, pratylenchus has special efficacy.
Flos Tagetis Erectae extract, be the material being gone out to have eelworm-killing activity by Aztec marigold tissue extraction, chemical composition comprises thiophene-based, essential oil, Bao Su, flavones and glycoside etc., has biologically active mainly three polythiophenes and its derivative to nematode.
The mixture of different pesticide species is the common methods of the agriculture resistance disease of control, worm, crop smothering.Screened by formulation of pesticide, filter out rational formula, can effectively improve actual control efficiency, reduce dosage, reducing costs, delay the generation of disease drug resistance, is the important means of disease, worm, the crop smothering comprehensive regulation.The recipe determination of the present inventor to fosthiazate and Flos Tagetis Erectae extract conducts in-depth research, and finds that fosthiazate and Flos Tagetis Erectae extract carry out mixture, has obvious synergistic effect, can effectively prevent and treat crops nematode in certain mixed ratio scope to nematode.After further study, the present invention is completed.
Mixture and the application of fosthiazate and Flos Tagetis Erectae extract there is no report at present.
Summary of the invention
The object of the invention is to overcome the deficiency in existing pesticide control nematode technology, provide the composition of fosthiazate and Flos Tagetis Erectae extract, it has excellent synergy control efficiency.
The present invention obtains granule with fosthiazate and Flos Tagetis Erectae extract mixture, wherein the ratio of weight and number of fosthiazate and Flos Tagetis Erectae extract is 40:1 ~ 1:40, preferred weight portion rate is 10:1 ~ 1:20, fosthiazate and the percentage by weight of Flos Tagetis Erectae extract weight summation in composition pesticide are 1% ~ 60%, and all the other are auxiliary agent.
The production and processing method of the various application forms of composition pesticide of the present invention is implemented by conventional method, all belongs to existing known technology, does not repeat them here.
The insecticide-applying way of composition pesticide of the present invention adopt spread fertilizer over the fields, ditch spread, the one of to spread manuer in holes etc.Frequency of administration and amount of application change with weather conditions and the change of nematode situation of the harm, can by the object using suitable dosage to reach control.
The present composition is applicable to prevent and treat elimination of underground destructive pests, especially prevents and treats nematode.
Compared with prior art, the invention has the advantages that: 1, after fosthiazate and Flos Tagetis Erectae extract mixture, there is obvious synergistic effect, improve control efficiency.2, after fosthiazate and Flos Tagetis Erectae extract mixture, the shortcoming that single use easily produces resistance can be overcome, delay the drug-fast generation of damage by disease and insect, extend medicament service life.3, after fosthiazate and Flos Tagetis Erectae extract mixture, drug effect significantly improves, and reduces Pesticide use amount, reduces drug cost, decreases agricultural chemicals to the infringement of ecotope and pollution.
Embodiment
In order to understand essence of the present invention better, below in conjunction with embodiment, content of the present invention is described in further detail, content mentioned in embodiment is not limitation of the invention, and in preparation method, the selection of the process conditions such as temperature, time can be suited measures to local conditions and there is no substantial effect to result.
The present invention obtains granule with fosthiazate and Flos Tagetis Erectae extract mixture, wherein the ratio of weight and number of fosthiazate and Flos Tagetis Erectae extract is 40:1 ~ 1:40, preferred weight portion rate is 10:1 ~ 1:20, fosthiazate and the percentage by weight of Flos Tagetis Erectae extract weight summation in composition pesticide are 1% ~ 60%, and all the other are auxiliary agent.
Described auxiliary agent comprises carrier 70-90%, adhesive 0.5-10%, coating agent 0.1-0.3%, dyestuff: 0.05-0.5%.
Wherein, described carrier is the one in particle diameter 8-20 object river sand, quartz sand, deposed brick slag.
Wherein, described binding agent is viscosity kaolin, one or both compositions in attapulgite, paraffin, rosin, gelatinized starch, xanthans, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose.
Wherein, described coating agent is one or several in polyvinyl alcohol, polyvinylpyrrolidone, mylar, acrylic acid synthetic polymer, acrylic resin film forming agent, butadiene resin film forming agent, polyurethane finishing agent, cellulose nitrate film forming agent.
Wherein, described dyestuff is disperse red, one in disperse blue, disperse violet, active red, reactive blue, active yellow.
The preparation method of above-mentioned Prochloraz (prochloraz-manganese chloride complex), comprises the steps:
Fosthiazate 6.0%; Flos Tagetis Erectae extract 4.0%; Attapulgite 2.0%; Polyvinylpyrrolidone 0.15%; Reactive blue 0.1%; Quartz sand 87.75%.
According to fertilizer granules preparation method of the present invention, above-mentioned material is mixed in airtight compounding kettle, the granulation of coating method, particle water content 1% is dried under 120 DEG C of conditions, screening, particle size range 4000 microns (μm), through after the assay was approved, namely obtains 10% fosthiazate Flos Tagetis Erectae extract granule.
assays Example 1: fosthiazate and Flos Tagetis Erectae extract mixture are tested the indoor biometrics of cucumber root-knot nematode.
Test method: get the cucumber root producing a large amount of root knot, running water is rinsed well gently, with the milky egg capsule on dissecting needle gently picking old complaint, put into the little culture dish of diameter 6cm, add a small amount of sterile water, in 25 DEG C of insulating boxs, hatch 3 ~ 4d, collect 2 instar larvaes, and adding sterile water, to be mixed with the suspension of finite concentration (about 500/milliliter) for subsequent use.
Setting 5 concentration gradient process, take sterile water as blank.Get 96 porocyte culture plates, every hole adds medicament 150 microlitre of the variable concentrations prepared, add isopyknic nematode suspension again, under 25 DEG C of conditions, moisturizing is cultivated, different time after treatment checks the amount of survival of southern nematode 2 instar and dead quantity respectively, nematode is stiff motionless for dead worm, and nematode is the worm that lives in bending wriggling state.Calculate lethality and corrected mortality.
According to survey data, calculate the corrected mortality of each process.And adopt the abundant method of Sun Yun to calculate the co-toxicity coefficient (CTC value) of mixture with reference to NY/T1154.1-2006.If contrast lethality < 5%, does not correct; Contrast lethality, between 5%-20%, corrects; Contrast lethality > 20%, test need be reformed.Be independent variable x with the logarithm value of drug concentration (mg/L), with the probit value of corrected mortality for dependent variable y, set up virulence regression equation formula respectively, adopt DPS software to calculate the LC of single dose and each proportioning mixture
50, LC
90, 95% confidence limit and mixture co-toxicity coefficient thereof, compare synergy situation.According to the NY/T11547.7-2006 insecticide combination effect criteria for classifying: co-toxicity coefficient (CTC value) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC value)≤120 shows as antagonism; 80 < co-toxicity coefficients (CTC value) < 80 shows as summation action.
Measurement result shows, to nematode CTC value >=120 in the scope of fosthiazate and Flos Tagetis Erectae extract composite proportioning 10:1 ~ 1:20, illustrate that fosthiazate and the synergy of Flos Tagetis Erectae extract mixture to nematode belong to synergistic effect, fosthiazate and Flos Tagetis Erectae extract is composite has reasonability and feasibility.
Table 1, different ratio fosthiazate and Flos Tagetis Erectae extract are surveyed the synergy of cucumber root-knot nematode
Fixed.
assays Example 2: fosthiazate and Flos Tagetis Erectae extract mixture are to the field control effectiveness test of cucumber root-knot nematode.
Test medicine: (1) 10% fosthiazate Flos Tagetis Erectae extract granule, (2) 10% fosthiazate granules, (3) 10% Flos Tagetis Erectae extract granules.
Spraying time: transplant cucumber and be watered filling root in latter 7 days.
Result of the test: in table 2, as can be seen from the test results: after dispenser 20 days, 30 days, the effect more than 85.92% of composition pesticide 10% fosthiazate Flos Tagetis Erectae extract granular preparation consumption 1000-2000 gram/acre control cucumber root-knot nematode of the present invention, significantly better than single dose, illustrate that composition pesticide of the present invention can prevent and treat crops nematode well, reduce dosage, reduce costs, delay the drug-fast generation of nematode, reduce environmental pollution.
The field control effectiveness test result of table 2, control cucumber root-knot nematode.
Claims (2)
1. prevent and treat a composition pesticide for nematode, it is characterized in that: active ingredient is fosthiazate and Flos Tagetis Erectae extract, the ratio of weight and number of described fosthiazate and Flos Tagetis Erectae extract is 10:1 ~ 1:20.
2. a kind of application of composition pesticide in control crops nematode preventing and treating nematode according to claim 1.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104355706A (en) * | 2014-11-15 | 2015-02-18 | 云南农业大学 | Oyster mushroom residue organic fertilizer and application method thereof |
| CN107467093A (en) * | 2017-09-28 | 2017-12-15 | 惠州市支持网知识产权运营有限公司 | A kind of agriculturally useful compositions containing Chinese herbal medicine |
| CN107581199A (en) * | 2017-10-30 | 2018-01-16 | 赖丰光 | A kind of nematicidal composition containing fosthiazate |
| CN113994960A (en) * | 2021-12-01 | 2022-02-01 | 江西省农业科学院植物保护研究所 | Pharmaceutical composition and pharmaceutical preparation for preventing and treating peanut root-knot nematode and preparation method thereof |
| CN113994980B (en) * | 2021-12-07 | 2022-10-04 | 济南栖圣农林科技有限公司 | Composition for preventing and treating pine wood nematode as well as preparation method and application thereof |
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| EP1967057A1 (en) * | 2007-03-06 | 2008-09-10 | Bayer CropScience AG | Safeguarding seed safety of treated seeds |
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| WO2007132224A2 (en) * | 2006-05-12 | 2007-11-22 | Plant Impact Plc. | Nematicidal composition |
| EP1967057A1 (en) * | 2007-03-06 | 2008-09-10 | Bayer CropScience AG | Safeguarding seed safety of treated seeds |
| CN101422162A (en) * | 2008-12-09 | 2009-05-06 | 昆明线敌生物科技有限公司 | Plant source preparation for preventing and treating Meloidogyne incognita disease and preparation method thereof |
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