CN101371663A - Composition containing Nitenpyram and Buprofezin and method thereof for resisting pest - Google Patents
Composition containing Nitenpyram and Buprofezin and method thereof for resisting pest Download PDFInfo
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- CN101371663A CN101371663A CNA2008100239943A CN200810023994A CN101371663A CN 101371663 A CN101371663 A CN 101371663A CN A2008100239943 A CNA2008100239943 A CN A2008100239943A CN 200810023994 A CN200810023994 A CN 200810023994A CN 101371663 A CN101371663 A CN 101371663A
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- buprofezin
- nitenpyram
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Abstract
The invention discloses a compounded composite for controlling rice fulgorid and other insects, which relates to effective components of pesticides containing nitenpyram, buprofezin, etc. The invention also discloses a method for using the compounded composite to prevent crops from suffering pests, and can generate the pesticidal effect which is better than the effect of the exclusive use of each active ingredient; and the invention has the synergistic effect. The compounded composite has effects on controlling imagoes and nymphae, and has the advantages of fast and long-term effect, and the like, during application.
Description
One, technical field
The invention discloses the complex composition that is used to prevent and treat insects such as rice fulgorid, relate to insecticide effective ingredients such as containing Nitenpyram and Buprofezin.The invention also discloses this complex composition and be used for cover crop and resist the method for pest, can produce insecticidal effect higher when using separately, have synergy than each active ingredient.This complex composition to the adult of insect and nymph all effectively, use that back quick-acting is strong, the lasting period is long etc.
The invention belongs to field of agrochemicals.
Two, background technology
1. prevent and treat the needs of pests such as rice fulgorid
Rice fulgorid comprises rice fulgorid, small brown rice planthopper, white-backed planthopper etc., easily breaks out because of factors such as crop genetics, weather, environmental ecologies in recent years and causes disaster, and is badly in need of administering control in paddy rice, Wheat Production, needs the research and development pesticide new variety especially.Bemisia tabaci also is very important pest, and polypide is little, and breeding is fast, and the scope that causes harm is wide.The crops such as vegetables, cotton, tobacco of mainly causing harm.These pests are not only stung suction water, cause the weak photosynthesis etc. that influences of plant, go back transmitted virus or bring out germ, have a strong impact on plant growth, cause and reduce or total crop failure.Therefore,, very need novel, efficient, safe, eco-friendly medicament control its harm, reach the purpose of agricultural year, also need to reach the purpose of food safety production in order effectively to control pest.
2. the insect comprehensive regulation, the needs of the scientific and reasonable use of medicament
Buprofezin (English common name buprofezin, other title: excellently readily take the opportunity to, buprofezin) be a kind of new selective insecticide that insect growth is grown that suppresses, action of contace poison is strong, and stomach poison function is also arranged.Mechanism of action is synthetic and disturb metabolism for suppressing insect chitin, causes nymph cast off a skin deformity or wing deformity and slowly dead.Just can find out effect in 3～7 days after the general dispenser, adult not had direct killing power, but can shorten its life-span, reduce egg laying amount, and output be mostly addle-egg, even the also very fast death of larva hatching.Double wing purpose plant hopper, leafhopper, aleyrodid and scale insect class pest have good control efficiency, and the drug effect phase reached more than 30 days.Safer to natural enemy, comprehensive effect is good.
Nitenpyram (English common name nitenpyram) belongs to anabasine insecticide, effects such as suction in the tool, infiltration, and mechanism of action is.All effective to adult and nymph, to beneficial organism safety.
Insect such as rice fulgorid, Bemisia tabaci, its nymph, adult all can endanger, and harm is long lasting period, can also repeatedly take place by generation overlap in the same season of growth of same class crop, with regard to the continuous repeated multiple times of needs with medicament is prevented and treated.In chemical control practice, except the needs medicament satisfies efficient, safety, eco-friendly characteristics, also require medicament to have the wide characteristics of applicability, meet the needs of agricultural production cover crop.
3. protect the needs of pesticide species, prolongation kind shelf life
Research and develop one and have the good cycle in 8～10 years of market value needs, and the economic life cycle of a good kind should be not less than 10 years, and the medication of Chinese farmers custom is not at all easy medicine that found, and has just found not put, and does not consider the drug-fast problem that fully utilizes.Because the use of single medicament can strengthen the medicament selection pressure, pest is developed immunity to drugs, the thing followed be exactly drug effect reduce or prevent and treat invalid.Therefore, from the angle of this outstanding kind of protection Nitenpyram, avoid the generation of high drug-resistance situations such as similar Imidacloprid, the complex preparation of exploitation Nitenpyram has science.In addition, Buprofezin belong to the kind that is difficult for developing immunity to drugs [1 village is woods forever, Shen Jinliang. brown plant-hopper is to the detection technique of leaf piperazine ketone resistance, Agricultural University Of Nanjing's journal, 2000,23 (3): 114-117], but in actual use also can with other medicaments wheels with or rationally composite.
Three, summary of the invention
(1) goal of the invention
The objective of the invention is to discover that Nitenpyram and thiophene worm piperazine have the complex composition of synergistic effect to rice fulgorid, and then development environment-friendly type, high performance novel formulation, for preventing and treating the medicament that important pests such as water rice hopper provide function admirable, ensure high grain yield good harvest and food security.
1. composite purpose
A reduces single agent consumption in order to protect the kind economic lifves such as Nitenpyram and Buprofezin, alleviates the medicament selection pressure, suspension of pesticide resistance generation or development, and composite is one of preferred version.
B to prevent and treat quick-acting in order promoting, to prolong and prevent and treat lasting effect, expansion applicability because rice fulgorid is a migratory pest, on the basis of a large amount of medicaments of screening, selects Nitenpyram and Buprofezin to carry out composite.
Promote the quick-acting aspect: Buprofezin belongs to insect growth regulator, IGR, and 3～7 talentes can expression effects after dispenser, and Nitenpyram belongs to anabasine insecticide, 2 days beginning show activities after dispenser, so both composite be rational.Prolong and prevent and treat the lasting effect aspect: the lasting period of Buprofezin can reach more than 30 days, and the lasting period of Nitenpyram, in rational amount ranges, composite dose lasting period was longer than single agent about 14 days.Enlarge the applicability aspect: plant hopper belongs to migratory pest, and the phase that flies into is different based on adult but fly into period from different areas, therefore exists spot adult, nymph to mix the situation that takes place.Nitenpyram is all effective to adult and nymph, and Buprofezin is effective to nymph, and is invalid to adult, and therefore, it is suitable selecting Nitenpyram and buprofezin compound.
C helps delaying pesticide resistance generation or development
Analyze from the mechanism of action, Buprofezin is the insect chitin synthetic inhibitor, Nitenpyram is an acetylcholinesteraseinhibitors inhibitors, analyze from the mode of action, Buprofezin has tags and stomach poison function, inhales and the effect of ingesting in Nitenpyram has, therefore, both are composite to have complementarity, helps delaying pesticide resistance and produces.
2. DEVELOPMENT PROSPECT analysis
Prevent and treat insects such as water rice hopper, leafhopper, vegetables aleyrodid with the contour malicious organic phosphor of acephatemet in the A agricultural production practice in the past, cost is low, but dangerous.Along with the forbidding of country to the malicious organic phosphor of height, the demand that environmentally friendly type new varieties are prevented and treated rice grub is very big, realizes very big space is provided for the market of complex preparation of the present invention, has good market prospects.
B environment-friendly type, high-performance preparation will more meet industrial policy, more meet the agricultural production needs.
(2) invention essentiality content
1. the synergy of Nitenpyram and Buprofezin presents synergistic effect
The medicament of control rice fulgorid is a lot, and selecting suitable single agent and studying its symphyogenetic type is one of key of the present invention.Buprofezin is the specific drug that the exploitation eighties in last century is used to prevent and treat rice fulgorid, because of the characteristic of medicament itself, through the use in more than 20 years, still has the market space preferably.And Nitenpyram is the anabasine insecticide of Japanese Wu Tian company in exploitation in 1989, and domestic also several companies can be used for preventing and treating rice fulgorid in exploitation.
After the chemical constitution that has comprehensively compared Nitenpyram and Buprofezin, the mode of action, the mechanism of action, effect characteristics, studied its synergy type.Result of study shows that Nitenpyram and buprofezin compound have remarkable synergistic effect.The percentage by weight of Nitenpyram is 1～99 in the complex composition, and the percentage by weight of Buprofezin is 1～99.When the proportioning of Nitenpyram and Buprofezin is 50～1:1～50, find that Nitenpyram and Buprofezin all have addition or synergistic effect to brown planthopper.When the proportioning of Nitenpyram and Buprofezin is 10～1:1～10, find that Nitenpyram and Buprofezin have remarkable synergistic effect to brown planthopper.
2. medicament biological property complementation helps integrated control and environmental ecology
After the biological property of having studied Buprofezin and Nitenpyram, The combined is used and will be made performance obtain complementation.Aspect the mechanism of action, Buprofezin is the insect chitin synthetic inhibitor, and Nitenpyram is an acetylcholinesteraseinhibitors inhibitors, and a drug can be attacked in a plurality of targets of insect site, produces synergy.Aspect the mode of action, Buprofezin has tags and stomach poison function, inhales and osmosis in Nitenpyram has, and has increased the mode of action behind the insect contact medicament.Aspect action characteristic, weak and lasting period of Buprofezin quick-acting reaches 30 days, and Nitenpyram quick-acting is strong, and the lasting period is 14 days, will be complementary after the synergy.Therefore, Buprofezin and Nitenpyram are composite has perfect complementary effect in theory.
Based on 1,2 results of study, the inventor claims and protects the disinsection compound composition and the application method thereof of Nitenpyram and Buprofezin.
3. the complex composition that contains Nitenpyram and Buprofezin can be developed to environment-friendly type, high performance novel formulation
As the research object rice fulgorid of pest of the present invention, be that paddy field takes place by frequent and serious insect.Dominant population comprises brown planthopper, white-backed planthopper, small brown rice planthopper etc., and the lasting effect of holding of strong quick-acting and length must be arranged the medicament of control rice fulgorid.
As the characteristic analysis of two effective ingredients among the present invention, Nitenpyram has interior suction, the effect of ingesting, Buprofezin have tag, stomach poison function, inhale water by thorn and have an effect.Requirement to preparation is that qualified stability, anti-rainwater are washed away, and is strong to the adhesion plate-out ability of plant or insect, and the infiltration conductivity is good.In conjunction with the characteristics of Nitenpyram and the former medicine of Buprofezin, novel formulation can be made water-soluble granule, water dispersible granules or formulations such as suspending agent or aqueous emulsion or wetting powder.
When preparing the composition with insecticidal activity of the present invention, with Nitenpyram, Buprofezin, appropriate carriers and additive, as mixing such as emulsifier, dispersant, stabilizing agent, bleeding agents, can make by common method and to make water-soluble granule, water dispersion granule, suspending agent, aqueous emulsion, wetting powder etc.Being adapted at the present invention, to have the carrier that uses in the composition of insecticidal activity can be any solid or the liquid-carrier that is generally used for the agriculture and garden medicament, as required, can use various surfactants, stabilizing agent and other auxiliary composition, in the preparation of commerce usefulness, composition of the present invention can also with the mixture of other active ingredient (for example various insecticides, miticide, bactericide, weed killer herbicide, plant growth regulator, synergist, fertilizer, aromatic), to expand its applicability.
4. the complex composition that contains Nitenpyram and Buprofezin of the present invention can effectively be prevented and treated outside the various pests such as paddy rice small brown rice planthopper, brown planthopper, white-backed planthopper, leafhopper, also be applicable to tag or stomach toxicity or interior suction or regulate modes such as insect growth and kill or control the pest damage to crops, these pests comprise insects such as Homoptera, diptera, coleoptera, and the crop of pest harm comprises paddy rice, wheat, corn, vegetables, cotton, fruit tree, vegetables, tea tree, lawn etc., and all can cultivate biology.
Though having the amount of application of the complex composition of insecticidal activity, the present invention needs to adjust according to the kind of essential condition such as population density, core crop and cropping pattern, weather condition, method of application etc., but generally speaking, the total amount of the complex composition with insecticidal activity that per hectare is used is 0.1～1000g, preferably 1～500g.In practice, when the complex composition that has an insecticidal activity as the present invention is water-dispersible granule, suspending agent, aqueous emulsion, wetting powder etc., can be after-applied on crop and pest by the effective ingredient consumption dilution of correspondence, it applies mode is simultaneously, continuously or successively.
Four, embodiment
The optimum state that carries out an invention: in the following embodiments, complex composition of the present invention is further described, but its active ingredient and proportioning thereof, auxiliary composition and addition thereof etc. all are not limited to following examples.In addition, all umber is all by weight among the embodiment.
(1) example of formulations:
The preparation processing mode is carried out routinely, and its composition and umber are as shown in the Examples.
Example of formulations 1:50% water dispersion granule
Example of formulations 2:20% wetting powder
Enumerating concrete experimental example below contains the complex composition of Nitenpyram and Buprofezin and application and feasibility thereof to the present invention and describes.
Experimental example 1
The purpose of this experimental example is to study the synergistic effect of Nitenpyram and Buprofezin
Method:, adopt the rice seedling infusion process with the brown planthopper of the laboratory artificial feeding survey target of making a living.Operating procedure is as follows:
Rice seedling is cultivated and chosen: adopt (hybrid rice) rice seedling of raising brown planthopper, height is about 100mm.The soup preparation: dilute behind the former medicinal acetone solution, the Tween 80 aqueous solution with 0.05% is diluted to soup, and preparation directly dilutes with running water.Chemicals treatment: rice seedling is flooded 10s in soup, take out and place on the blotting paper disposable the moulding in the cup of packing into after drying naturally.Connect worm: every treatment dosage connects 45 of worms (nymph/adult).To there be the medicine rice seedling to pack in the cup, insert the examination worm, 15 every glass, repeat 3 times.Breeding observing and inspection as a result: preserve moisture and following illumination cultivation, check borer population anyway in the time of the 3rd day, calculate LC
50
Theoretical lethality P
A+B=1-(1-P
A) (1-P
B)
Synergistic effect=actual-theoretical lethality
The synergistic effect value is greater than 5, and expression has synergy trend, and between-5～5, expression has summation action, and less than-5, expression has antagonism.
The result: when fixing Nitenpyram dosage 2mg/L, the dosage that changes Buprofezin is from 20～0.2mg/L, and its synergistic effect as shown in the figure, after chemicals treatment 2 days, all proportionings all showed synergistic effect, after the chemicals treatment 3 days, only 8+1 shows summation action, and other proportionings all show synergistic effect.
See Figure of description for details.Figure of description is that Nitenpyram is when being 2mg/L and the synergistic effect figure of buprofezin compound.Transverse axis is a proportioning, and the longitudinal axis is the synergistic effect value.
Experimental example 2
The purpose of this experimental example is to study the field efficacy of 50% Nitenpyram and Buprofezin water dispersible granules control paddy rice brown planthopper.
50% Nitenpyram and the Buprofezin water dispersible granules developed according to example of formulations 1, in the paddy rice brown planthopper control phase, carry out spray pesticide, the field keeps the 3-5cm water layer, the brown planthopper radix is bigger, adult and nymph mixed population are tested result such as following table by GB/T17980.4-2000 field control effectiveness test criterion insecticide control water rice hopper.
By result of the test as can be seen, the Buprofezin wetting powder is under the 225g/ha at dosage, and a little less than the quick-acting, the 3rd day is 56.42% only to the nymph preventive effect, and the lasting period is long, and integrated control effect reached 84.35% in 30 days.Nitenpyram aqua quick-acting is strong, and the lasting period can reach 14 days, but preventive effect has descended during by 30 days.50% Nitenpyram and Buprofezin water dispersible granules quick-acting and lasting effect are all better, have reached composite purpose.Comparatively speaking, reduce the consumption of single agent, improved economic benefit, ecological benefits etc.
Though, above with a general description of the specific embodiments the present invention having been done detailed description, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, not departing from the these modifications or improvements basically of essence of the present invention, all belong to the scope of protection of present invention.
Claims (8)
1. cover crop is resisted the agrochemistry complex composition of pest, and it is characterized in that: used efficient pesticides, described insecticide is Nitenpyram and Buprofezin.
2. complex composition according to claim 1 is characterized in that: the percentage by weight of Nitenpyram is 1～99, and the percentage by weight of Buprofezin is 1～99.
3. complex composition according to claim 2 is characterized in that: the percentage by weight ratio range of Nitenpyram and Buprofezin is 50～1:1～50.
4. complex composition according to claim 2 is characterized in that: the preferable range of the percentage by weight proportioning of Nitenpyram and Buprofezin is 10～1:1～10.
5. according to claim 1,2,3,4 described complex compositions, it is characterized in that: comprise 1% to 95% effective ingredient, one or more agriculturals go up liquid state or solid-state carrier and one or more the agriculture surfactants that allows of going up that allows.
6. according to the described complex composition of claim 1 to 5, it is characterized in that: Nitenpyram and Buprofezin synergy have synergy, and the mode of action has complementarity.
7. the method for cover crop opposing pest; be applicable to tag or stomach toxicity or interior suction or regulate modes such as insect growth and kill or control the pest damage to crops; these pests comprise insects such as Homoptera, diptera, coleoptera, and the crop of pest harm comprises paddy rice, wheat, corn, vegetables, cotton, fruit tree, vegetables, tea tree, lawn etc., and all can cultivate biology.
8. the method for cover crop opposing pest, it comprises with diverse ways and applies the described complex composition of claim 1 that it applies mode is simultaneously, continuously or successively.
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| CN2008100239943A CN101371663B (en) | 2008-04-24 | 2008-04-24 | Composition containing Nitenpyram and Buprofezin and method thereof for resisting pest |
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| CN101371663B CN101371663B (en) | 2012-04-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017948B (en) * | 2009-09-22 | 2013-09-18 | 南京华洲药业有限公司 | Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination |
| CN103621517A (en) * | 2013-12-05 | 2014-03-12 | 湖南省植物保护研究所 | Buprofezin and nitenpyram binary composition, pesticide and application of pesticide to prevention and control of paddy rice sogatella furcifera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1593143A (en) * | 2001-06-22 | 2005-03-16 | 胡耐冬 | Fenoxanil containing bactericide and insecticide compositions |
| CN1218637C (en) * | 2001-06-22 | 2005-09-14 | 胡耐冬 | Insecticide-disinfectant composition containing zarilamid |
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- 2008-04-24 CN CN2008100239943A patent/CN101371663B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017948B (en) * | 2009-09-22 | 2013-09-18 | 南京华洲药业有限公司 | Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination |
| CN103621517A (en) * | 2013-12-05 | 2014-03-12 | 湖南省植物保护研究所 | Buprofezin and nitenpyram binary composition, pesticide and application of pesticide to prevention and control of paddy rice sogatella furcifera |
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| CN101371663B (en) | 2012-04-18 |
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