CN102669150B - Synergistic insecticidal composition containing thiacloprid and cyfluthrina - Google Patents
Synergistic insecticidal composition containing thiacloprid and cyfluthrina Download PDFInfo
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- CN102669150B CN102669150B CN201210128943.3A CN201210128943A CN102669150B CN 102669150 B CN102669150 B CN 102669150B CN 201210128943 A CN201210128943 A CN 201210128943A CN 102669150 B CN102669150 B CN 102669150B
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- thiacloprid
- cyfluthrina
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Abstract
The invention relates to a synergistic insecticidal composition containing thiacloprid and cyfluthrina. The synergistic insecticidal composition containing the thiacloprid and the cyfluthrina comprises active components of the thiacloprid and the cyfluthrina and is mainly used for controlling rice plant hoppers. The synergistic insecticidal composition containing the thiacloprid and the cyfluthrina has an obvious synergistic effect and has an outstanding control effect on the rice plant hoppers.
Description
Technical field
The present invention relates to a kind of agricultural chemical insecticide complex preparation, its active ingredient comprises thiacloprid and cyfluthrina, is mainly used in water prevention rice fulgorid.
Background technology
Thiacloprid be a kind of newly have efficient broad spectrum pesticide to sucking pest, the mechanism of action of thiacloprid and other conventional pesticides different.It mainly acts on insect nerve and engages caudacoria, by being combined with nAChR, and interference insect nervous system normal conduction, cause the obstruction of neural channel, cause a large amount of accumulation of acetylcholine, thus make insect exaltation, general spasticity, paralysis and dead.There is stronger interior suction, tag and stomach poison function, there is no cross resistance with common insecticides as pyrethroid, organic phosphates and carbamates, thus can be used for resistance management.
Thiacloprid acts on nicotinic acetylcholine receptors, and it and common insecticides do not have cross resistance as pyrethroid, organic phosphates and carbamates, thus can be used for resistance management.Thiacloprid has interior absorption and has Acute exposure toxicity and stomach poison function.The soil half life period of thiacloprid is short, to birds, fish and multiple beneficial arthropods safety.It is very safe to honeybee, can use equally at flowering phase of crop.Due to thiacloprid low toxicity, efficiently, liked by numerous users.
Chlorine fluorine ether chrysanthemum ester insecticidal spectrum is wide, and energy effectively preventing sanitary insect pest and store pest, all have high killing effect to sanitary insect pests such as mosquitos and flies, cockroach, flea, bedbug, louse, ants.This product has very high stomach toxicity and action of contace poison to insect, and knock down rapidly, tool ovicidal activity, has good stability in the environment, can anti-rain drop erosion, stable to photo-thermal, holding effect is long.
Rice fulgorid belongs to Homoptera Delphacidae, hazard rice mainly contain brown planthopper, white-backed planthopper and small brown rice planthopper three kinds.Endangering heavier is brown planthopper and white-backed planthopper, and the later stage is based on brown planthopper based on white-backed planthopper early stage for early rice; Middle late rice is based on brown planthopper.Small brown rice planthopper seldom directly causes disaster, but can propagate the virus of paddy and wheat, seeding corn and other crops.
Adult and nymph to be all clustered on the stem stalk of rice clump bottom thorn and to inhale juice, meet agitation and namely jump overboard or flee from.Ovum fecund is in the leaf sheath of rice clump bottom, and heading is rear or lay eggs in fringe neck.When brown planthopper takes food, lancet extends leaf sheath phloem, first by glandula secretion along lancet congeal into " stylophore " aspirate juice.Plant is light green, cover and the rice field insect density of ponding is large.Generally first entreat intensive causing harm Tanaka, after expand gradually.In paddy rice booting to the plant in flowering stage, water-soluble protein content increases, the generation of favourable brachypterism type.This kind of female worm egg laying amount is large, and female than high, the life-span is long, often makes brown planthopper insect population increase sharply.After milk ripe stage, long wing ratio rises, and easily causes and migrates.Rice fulgorid causing harm to paddy rice, except directly thorn inhales juice, make growth retardation, time serious, rice clump is agglomerating withered, outside the dead stalk lodging in even full field, lay eggs and also can stab plant, destroy conducting tissue, hinder nutriment to transport and the viral disease that spreads disease, there is the serious time in insect pest, the output of serious threat grain.
Thiacloprid and cyfluthrina is not yet had to carry out the report of composite Pesticidal combination at present.
Summary of the invention
The object of the invention is thiacloprids different for the mechanism of action and cyfluthrina to carry out composite, make full use of the synergistic effect of both composite generations, provide a kind of can the new formula of effective water prevention rice fulgorid.
Technical scheme of the present invention: a kind of Synergistic insecticidal compositions containing thiacloprid and cyfluthrina, active ingredient comprises thiacloprid, cyfluthrina, thiacloprid and cyfluthrina ratio of weight and number is in the composition 15:1 ~ 1:15, and preferred weight portion rate is 5:1.
A kind of Synergistic insecticidal compositions containing thiacloprid and cyfluthrina of the present invention is mixed with microemulsion, suspending agent or water dispersible granules three kinds of formulations when practical application.
Pesticidal combination of the present invention is also containing the auxiliary element of preparation needed for pesticidal preparations, comprise one or more mixing in emulsifier, wetting agent, stabilizing agent, dispersant, thickener, defoamer, antifreezing agent, filler, filler, medium etc., be known substance, various auxiliary agents conventional in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
Pesticidal combination described in the invention, for water prevention rice fulgorid.
Pesticidal combination described in the invention, the method use of can adopt spraying, spreading fertilizer over the fields, also can adopt other operation technique agriculturally applied as required.
Through a large amount of indoor, outdoor bioassay test, prove that Pesticidal combination of the present invention has following beneficial effect.
1, thiacloprid and the composite rear synergistic effect of cyfluthrina are obviously, and its drug effect of contrast single dose is greatly improved, and dosage obviously reduces.Thus reduce use cost, reduce the residual of agricultural chemicals and the pollution to environment.
2, find in field trial observation process, the various formulations of this formula, lasting medicine, has effectively delayed the rising repeatedly of water rice hopper insect population number, has decreased spraying times, reduced the Productive statistics of peasant household to a certain extent.
Embodiment
Be described in further detail content of the present invention below in conjunction with embodiment, content mentioned in embodiment is not limitation of the invention, and material prescription is selected to suit measures to local conditions and on result without substantial impact.In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
example of formulations 1: 30% thiacloprid chlorine fluorine ether chrysanthemum ester microemulsion.
Thiacloprid 25%, chlorine fluorine ether chrysanthemum ester 5%, dimethylbenzene 12%, 0203B(surfactant) 6%, agriculture breast 500# 6%, agriculture breast 602# 2%, ethylene glycol 3%, deionized water complements to 100%.
By above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve uniformly oil phase, under agitation slowly add in deionized water, then through the rapid phase inversion of agitating heating, be chilled to room temperature i.e. obtained 30% thiacloprid chlorine fluorine ether chrysanthemum ester microemulsion.
example of formulations 2:20% thiacloprid chlorine fluorine ether chrysanthemum ester water dispersible granules.
Thiacloprid 15%, chlorine fluorine ether chrysanthemum ester 5%, lauryl sodium sulfate 2%, sodium lignin sulfonate 10%, naphthalene sulfonate 5%, bentonite complements to 100%.
Above-mentioned raw materials is through mixing, ultra micro air-flow crushing, mixing, granulation, the obtained 20% thiacloprid chlorine fluorine ether chrysanthemum ester water dispersible granules of screening.
example of formulations 3:20% thiacloprid chlorine fluorine ether chrysanthemum ester suspending agent.
Thiacloprid 15%, chlorine fluorine ether chrysanthemum ester 5%, methyl naphthalene sulfonate formaldehyde condensate 5%,
0203B 6%, white carbon 4%, aluminium-magnesium silicate 0.3%, ethylene glycol 5%,
Tributyl phosphate 1.5%, deionized water complements to 100%.
Said components is pre-mixed in proportion, then adds in sand mill and grind, the obtained 20% thiacloprid chlorine fluorine ether chrysanthemum ester suspending agent of allotment after high shear mixing.
Assays Example 1: thiacloprid and the composite indoor biological determination of activity of chlorine fluorine ether chrysanthemum ester.
Former medicine is made microemulsion test indoor feeding rice fulgorid; Experimental Method in Laboratory carries out with reference to Wu Wenjun " chemical protection of plant experimental technique introduction " (1993); carry out drug effect by the co-toxicity coefficient (CTC) calculating different complex preparation to different ratios to compare, thus determine the mixed proportion that effect is best.
Calculate the toxicity index of each medicament and the co-toxicity coefficient (CTC value) of mixture according to the abundant method of Sun Yun, when CTC≤80 are antagonism, 80 ﹤ CTC ﹤ 120 are summation action, and CTC >=120 are synergistic effect.Result of the test is with reference to following table.
Table 1, thiacloprid, chlorine fluorine ether chrysanthemum ester different ratio are to the virulence of rice hoppers.
Known according to table 1, thiacloprid and chlorine fluorine ether chrysanthemum ester are between 1:15 ~ 15:1 in composite weight ratio, all show synergistic effect to rice hoppers, wherein thiacloprid and chlorine fluorine ether chrysanthemum ester the most obvious with the ratio compound synergic effect of 5:1.
Assays Example 2: to the field medicine effect test of water rice hopper.
The test of pesticide effectiveness to water rice hopper of the present invention the results are shown in Table 2.
Table 2, field medicine effect test result to water rice hopper.
As can be seen from Table 2, thiacloprid of the present invention and chlorine fluorine ether chrysanthemum ester complex composition have good control efficiency to water rice hopper, and the quick-acting of composition and lasting effect, all significantly better than single dose, can reach desirable preventive effect in after medicine 3 days.In process of the test, poisoning phenomenon is not had to occur, to crop safety.Pesticidal combination of the present invention has good value of exploiting and utilizing.
Claims (3)
1. contain a Synergistic insecticidal compositions for thiacloprid and cyfluthrina, it is characterized in that: active ingredient comprises thiacloprid, cyfluthrina; Described thiacloprid and cyfluthrina ratio of weight and number is in the composition 15:1 ~ 1:15.
2. a kind of Synergistic insecticidal compositions containing thiacloprid and cyfluthrina according to claim 1, is characterized in that: described thiacloprid and cyfluthrina ratio of weight and number is in the composition 5:1.
3. a kind of Synergistic insecticidal compositions containing thiacloprid and cyfluthrina according to claim 1, is characterized in that: be mixed with microemulsion, suspending agent or water dispersible granules three kinds of formulations during practical application.
4. a kind of Synergistic insecticidal compositions containing thiacloprid and cyfluthrina according to any one of claims 1 to 3, is characterized in that: for water prevention rice fulgorid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210128943.3A CN102669150B (en) | 2012-04-28 | 2012-04-28 | Synergistic insecticidal composition containing thiacloprid and cyfluthrina |
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| CN201210128943.3A CN102669150B (en) | 2012-04-28 | 2012-04-28 | Synergistic insecticidal composition containing thiacloprid and cyfluthrina |
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| CN102669150A CN102669150A (en) | 2012-09-19 |
| CN102669150B true CN102669150B (en) | 2015-05-20 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788556A (en) * | 2001-06-21 | 2006-06-21 | 拜尔农作物科学股份公司 | Oil-based suspension concentrates |
| CN1946296A (en) * | 2004-02-10 | 2007-04-11 | 拜尔农作物科学股份公司 | Combinations of insecticide active agents based on thiacloprid and pyrethroids |
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2012
- 2012-04-28 CN CN201210128943.3A patent/CN102669150B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788556A (en) * | 2001-06-21 | 2006-06-21 | 拜尔农作物科学股份公司 | Oil-based suspension concentrates |
| US20070066489A1 (en) * | 2001-06-21 | 2007-03-22 | Ronald Vermeer | Oil-based suspension concentrates |
| CN1946296A (en) * | 2004-02-10 | 2007-04-11 | 拜尔农作物科学股份公司 | Combinations of insecticide active agents based on thiacloprid and pyrethroids |
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| CN102669150A (en) | 2012-09-19 |
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