CN106857697A - A kind of Pesticidal combination containing bitter pueraria root extract and jervine and application thereof - Google Patents
A kind of Pesticidal combination containing bitter pueraria root extract and jervine and application thereof Download PDFInfo
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- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- 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
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- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/20—Fabaceae or Leguminosae [Pea or Legume family], e.g. pea, lentil, soybean, clover, acacia, honey locust, derris or millettia
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Abstract
The present invention relates to a kind of Pesticidal combination, the active component in the Pesticidal combination is that weight ratio is 1:6~6:1 bitter pueraria root extract and the composition of jervine, are further configured to microemulsion by the Pesticidal combination.Pesticidal combination of the invention has certain synergistic effect for single dose, while have low cost, low toxicity, it is possible to decrease the advantages of pest resistance to insecticide, and can effectively prevent and treat the agricultural pests such as cabbage pieris, diamondback moth, maize army worm, tea aphid, smaller green leaf hopper.
Description
Technical field
The invention belongs to technical field of pesticide, it is related to a kind of pharmaceutical agent combinations for preventing and treating agricultural pests, relates more specifically to
Pharmaceutical agent combinations are configured to microemulsion, for the agricultural evil such as maize army worm, cabbage pieris, diamondback moth, tea aphid, tea lesser leafhopper
The preventing and treating of worm.
Technical background
Diseases and pests of agronomic crop is one of Main Agricultural disaster of China, with species it is many, influence is big and outburst often is caused disaster
The characteristics of, its occurrence scope and the order of severity often result in heavy losses to Chinese national economy, particularly agricultural production.As tea is small
Greenery cicada can seriously cause harm Summer-autumn tea, aggrieved tea tree bud-leaf rolls up, hardens, just, blade tip and leaf margin it is reddish brown dried-up, the growth of the bud tip is slow
Slowly, it is very big to tea yield and qualitative effects.
Agricultural pests can be prevented and treated using methods such as physics, chemistry, biology and agriculturals in production at present, wherein, chemistry is killed
Worm agent have efficiently, quick, commercialized degree high, kind and formulation is various, can apply immediately in field after purchase, application process
Easy the advantages of, as the measure in production using most pest controls.Including organophosphorus insecticides, carbamates
Insecticide, nicotinic insecticide etc., play the important and pivotal role in agricultural insect pests control.But chemical insecticide has wide spectrum
Property, easily kill off the insect pests natural enemy while killing off the insect pests, and is also easy to produce the rampant and minor pests again for killing off the insect pests and rises to Main Harmful
Worm.The use of chemical insecticide also easily causes pollution problem.Therefore, low toxicity, low-residual, degradable plant insecticide etc. are raw
Thing insecticide can make up the deficiency of chemical pesticide.
Bitter Pueraria lobota belongs to pulse family Pueraria lobota category, and alias Yunnan kudzu is distributed widely in the ground such as China Tibet, Yunnan, Sichuan, Guangxi, Pueraria lobota
The pharmacological activity of platymiscium is very strong, omei mountain kudzuvine root energy desinsection, and its flower can relieve the effect of alcohol, relieving restlessness heat.Wang Jing et al. presses down to bitter pueraria root extract
Find bitter pueraria root extract to rice sheath blight disease, inner scab, oat reaping hook germ, early blight of tomato in the Primary Study of bacterium activity
Bacterium, the mycelial growth of tobacco brown spot pathogen have very strong inhibitory action, and with the raising of concentration, inhibitory action enhancing；
Shi Rui et al. has found that bitter Pueraria lobota n-butanol extract is managed to beautiful rice Constriction in the insecticidal activity research to bitter kudzu lamb's-quarters to maize aphidses
Aphid has very strong contact toxicity, its LD50It is 14.55mg/L to be worth.Jervine is to be present in Liliaceae Veratrum and sabadilla category plant
Insecticide active substance in thing, has to insect and tags and stomach poison function.Can be used for prevent and treat cabbage caterpillar, aphid, leafhopper, thrips and
The agricultural pests such as stinkbug.Jervine is pure plant source preparation, without the resistance to the action of a drug.By the strong bitter pueraria root extract of quick-acting and holding effect
Phase broad spectrum pesticide jervine long is compounded, and can improve effect of the vegetable insecticide to control of insect.At present, not yet send out
Bitter pueraria root extract and jervine are now carried out into compounding for the relevant report of agricultural insect pests control.
The content of the invention
The present invention provides the complex composition of bitter pueraria root extract and jervine, and the two has synergistic effect, further, will
The two is prepared into the agricultures such as microemulsion, preventing and treating cabbage pieris, diamondback moth, maize army worm, tea tree tea geometrid, tea aphid, smaller green leaf hopper
Industry insect.
Based on this purpose, the technical scheme is that：
A kind of Pesticidal combination, it is characterised in that the active component in the Pesticidal combination is that weight ratio is 1:6~6:
The composition of 1 bitter pueraria root extract and jervine.
Preferably, the weight ratio of the two is 1:3~3:1；It is highly preferred that both weight ratios are 1:3.
Further, the present invention also provides a kind of microemulsion, it is characterised in that it includes above-mentioned Pesticidal combination and helps
Agent；Wherein the consumption of Pesticidal combination is 1~20 weight %, and auxiliary agent is the weight % of solvent 20~40, the weight of emulsifying agent 10~25
Amount %, the weight % of cosolvent 5~15, the weight % of antifreezing agent 3~5, remaining supplies 100 weight % with water.
The solvent is methyl alcohol.
The emulsifying agent is styryl phenyl APEO, APES, polyaryl phenol polyethenoxy
One or more combination in ether phosphate.
The cosolvent is isopropanol, one kind of n-butanol or mixture.
The antifreezing agent is ethylene glycol.
Preferably, the consumption of active ingredient is 4~16 weight %；It is highly preferred that the consumption of active ingredient is 10 weight %；
Further, the present invention provides above-mentioned Pesticidal combination and/or microemulsion preventing and treating cabbage pieris, diamondback moth, jade
The purposes of rice mythimna separata, tea aphid or smaller green leaf hopper.
Described bitter pueraria root extract preparation method is：The root of bitter Pueraria lobota is cut into l-2cm segments long, is dried in 80 DEG C of baking ovens
It is dry, 50 mesh sieves were crushed, collect standby.Refluxing extraction is carried out at 70 DEG C using 75% ethanol water, each 8h extracts 3
It is secondary, leaching liquor is collected, residue is filtered to remove, be concentrated under reduced pressure leaching liquor, and collection obtains dry medicinal extract.Medicinal extract is diluted with water,
With extracting n-butyl alcohol, the ratio of extractant and concentrate aqueous is 4：1, extract concentrate drying, concentrate AB-8 resins
Static Adsorption is overnight.It is 3 with water and methanol ratio：7 mixed solvent wash-out, by eluent concentrate drying, as bitter Pueraria lobota is extracted
Thing.
Unless otherwise indicated, " % " in this specification is " percentage by weight ".
The preparation method of the application microemulsion：In each components in certain proportion input emulsification cutter that will be measured；Cut at a high speed
Cut 30 minutes, you can obtain the product, spraying is used after dilution.
Microemulsion is a kind of novel environment friendly formulation of water baseization, and powder is fine, it is easy to permeate insect body wall, so as to harmful
Insect plays more preferable toxic action.Active ingredient used by microemulsion of the invention is plant medical agent, to non-target organism and ring
Border safety, to person poultry harmless, is adapted to be used in various crop, can effectively prevent and treat cabbage pieris, diamondback moth, corn and glue
The agricultural pests such as worm, tea tree tea geometrid, tea aphid, smaller green leaf hopper.Meanwhile, use mixture formulation, for single dose, insecticidal spectrum
Extensively, with synergistic effect, and use cost can be effectively reduced, reduces pest resistance to insecticide.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is entered with following instantiation
Row explanation, but the present invention is not limited to these specific embodiments.
Bitter pueraria root extract preparation method：The root of bitter Pueraria lobota is cut into l-2cm segments long, is dried in 80 DEG C of baking ovens, crushed
50 mesh sieves are crossed, is collected standby.Refluxing extraction is carried out at 70 DEG C using 75% ethanol water, each 8h is extracted 3 times, collected
Leaching liquor, is filtered to remove residue, and be concentrated under reduced pressure leaching liquor, and collection obtains dry medicinal extract.Medicinal extract is diluted with water, n-butanol is used
The ratio of extraction, extractant and concentrate aqueous is 4：1, extract concentrate drying, concentrate AB-8 resin Static Adsorptions
Overnight.It is 3 with water and methanol ratio：7 mixed solvent wash-out, by eluent concentrate drying, as bitter pueraria root extract.
First, embodiment is prepared
Embodiment 1：
Bitter pueraria root extract 1.43wt%；Jervine 8.57wt%；Methyl alcohol 30wt%, styryl phenyl APEO
10wt%；Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 2：
Bitter pueraria root extract 2.5wt%；Jervine 7.5wt%；Methyl alcohol 30wt%, styryl phenyl APEO
10wt%；Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 3：
Bitter pueraria root extract 5wt%；Jervine 5wt%；Methyl alcohol 30wt%, styryl phenyl APEO 10wt%；
Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 4：
Bitter pueraria root extract 7.5wt%；Jervine 2.5wt%；Methyl alcohol 30wt%, styryl phenyl APEO
10wt%；Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 5：
Bitter pueraria root extract 8.57wt%；Jervine 1.43wt%；Methyl alcohol 30wt%, styryl phenyl APEO
10wt%；Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 6：
Bitter pueraria root extract 1wt%；Jervine 3wt%；Methyl alcohol 30wt%, styryl phenyl APEO 10wt%；
Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 7：
Bitter pueraria root extract 2wt%；Jervine 6wt%；Methyl alcohol 30wt%, styryl phenyl APEO 10wt%；
Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 8：
Bitter pueraria root extract 3wt%；Jervine 9wt%；Methyl alcohol 30wt%, styryl phenyl APEO 10wt%；
Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
Embodiment 9：
Bitter pueraria root extract 4wt%；Jervine 12wt%；Methyl alcohol 30wt%, styryl phenyl APEO 10wt%；
Isopropanol 10wt%；Ethylene glycol 3wt%；Surplus is supplied with water.
2nd, biological Examples
1st, indoor bactericidal activity is determined
1.1 Study on Fungicide Toxicity
With reference to farm-chemical indoor determination test rule, the poison for examination single dose to 3 age armyworm larvaes is determined using dip method
Kill activity.Bitter pueraria root extract and jervine are respectively set into 5 concentration for the treatment of (being diluted with dimethyl sulfoxide solvent).Take the age of mythimna separata 3 children
Worm impregnates 10s in each concentration liquid, takes out, and unnecessary liquid is blotted with blotting paper, is placed in the clean container for being placed with fresh food
In.Dimethyl sulfoxide (DMSO) is compared.Each concentration processes 20, is repeated 4 times.Then treated test worm is put into artificial intelligence gas
Wait raising in case culture (28 DEG C ± 1 DEG C, RH=80%).Number of dead and live insects is checked after 72h, is death can not normally creep.Meter
The insect population death rate, corrected mortality are calculated, and the toxicity regression curve and LC of two single doses are obtained by probit analysis method50Value.
The complex role research of 1.2 bitter pueraria root extract things and jervine
Bitter pueraria root extract and jervine are compounded：Two kinds of active compounds are configured to 6 by active ingredient:1,3:1,1:1,1:
3,1:6 totally 5 proportioning (mass ratio).Above-mentioned formula carries out toxicity test by Study on Fungicide Toxicity method respectively.
Mixture synergy is evaluated, with LC50Based on value, mixture joint is evaluated by calculating mixture co-toxicity coefficient
Type of action.
CTC >=120 are synergistic effect, 80≤CTC<120 is summation action, CTC<80 is antagonism.
2. result of the test
2.1 Study on Fungicide Toxicity results
Toxicity Determination result of the 12 kinds of medicaments of table to mythimna separata
As it can be seen from table 1 LC of the bitter Pueraria lobota crude extract to 3 age armyworm larvaes50It is 257.7427 μ g/mL；Jervine is to 3 ages
The LC of armyworm larvae50It is 112.9140 μ g/mL.
The bitter pueraria root extract of table 2 compounds the Toxicity Determination result to 3 age armyworm larvaes with jervine
As shown in Table 2, all proportions of bitter pueraria root extract and jervine compounding show certain synergistic effect, but not
With compound proportion coefficient of synergism difference.Wherein, the compound proportion of bitter Pueraria lobota crude extract and jervine is 1：When 3, co-toxicity coefficient
Highest, is 221.18.
2nd, field experiment
1. test method
Cabbage caterpillar and diamondback moth experiment are carried out in Chengdu double fluid area；Maize army worm experiment is carried out in Renshou County；Tea geometrid
Carry out in Ya'an Mingshan County with the experiment of tea aphid.Experimental field soil types is clay, and soil fertility is medium, cell cultivation condition one
Cause.Plot area 20m2, middle setting isolation strip.It is each to implement in cabbage caterpillar, diamondback moth, mythimna separata and tea geometrid controlling experiment
Example presses active ingredient 20g/hm2Dosage against plant spray, medicament control be 0.5% jervine soluble concentrate and 10%
Bitter pueraria root extract microemulsion, consumption is active ingredient 20g/hm2；In tea aphid, tea lesser leafhopper controlling experiment, each embodiment
By active ingredient 2g/hm2Dosage sprayed against plant, medicament control is that 0.5% jervine soluble concentrate and 10% are bitter
Pueraria root extract microemulsion, consumption is active ingredient 2g/hm2；, using spray clear water as blank, often treatment repeats 4 for experiment
Secondary, random district's groups carry out cell arrangement.1d, 3d, 7d and 14d investigate the borer population in each cell after dispenser, according to clear water check plot
Borer population with treatment region calculates prevention effect, and carries out significance difference analysis.
In formula：TaThe individual amount survived after the preventing and treating of-treatment region；TbThe individual amount of survival before the preventing and treating of-treatment region；
CaThe individual amount survived after the preventing and treating of-check plot；CbThe individual amount of survival before the preventing and treating of-check plot.
The preparation of 10% bitter pueraria root extract microemulsion：Omei mountain kudzuvine root extract 10kg is weighed, is dissolved in 20kg n-butanols, then
APES 5kg, calcium dodecyl benzene sulfonate 15kg are added, is mixed under the stirring condition that temperature is 45 DEG C；
While stirring, water ion water 50kg is slowly added dropwise, continues to stir 1h after completion of dropwise addition, that is, obtain 10% bitter pueraria root extract micro emulsion
Agent 100kg.The preparation of gained meets national microemulsion performance indications requirement on the Testing index such as stability, outward appearance.
2. result of the test
9 complex microemulsions of bitter pueraria root extract and jervine are determined to maize army worm, cabbage pieris, diamondback moth, tea
Aphid, the field control effect of tea lesser leafhopper, are shown in Table 3, table 4, table 5, table 6 and table 7.
As can be seen that different embodiments are equal to maize army worm, cabbage pieris and diamondback moth from table 3, table 4 and the table of table 5
There is different degrees of preventive and therapeutic effect.Wherein, when bitter pueraria root extract and jervine active ingredient are 10wt%, it is 1 to be matched at both：
(embodiment 2, higher than other proportionings, (embodiment 1, embodiment 3, embodiment 4, implement to above pest controling effect preferably when 3
Example 5 and comparison medicament are processed).When active constituent content is less than 10wt% (embodiment 6 and embodiment 7), to maize army worm etc.
The prevention effect of insect pest is decreased obviously；It is viscous to corn when active constituent content is higher than 10wt% (embodiment 8 and embodiment 9)
The prevention effect of the insect pests such as worm is without significantly improving.It can thus be seen that when bitter pueraria root extract and jervine active ingredient are
10wt%, and both proportionings are 1：3 is best available component content and proportioning, to Corn mythimna separata, cabbage pieris, diamondback moth
There is good prevention effect.
Data can be seen that different embodiments from table 6 and the table of table 7 has different degrees of to tea aphid, tea lesser leafhopper
Preventive and therapeutic effect, effect is obviously higher than the jervine soluble concentrate of comparison medicament 0.5% and 10% bitter pueraria root extract microemulsion.Its
In, when bitter pueraria root extract and jervine active ingredient are 10wt%, it is 1 to be matched at both：When 3 (embodiment 2), to tea aphid, tea
Smaller green leaf hopper prevention effect preferably, (embodiment 1, embodiment 3, embodiment 4, at embodiment 5 and comparison medicament is matched higher than other
Reason).When active constituent content is less than 10wt% (embodiment 6 and embodiment 7), to tea aphid, the prevention effect of tea lesser leafhopper
It is remarkably decreased；When active constituent content is higher than 10wt% (embodiment 8 and embodiment 9), to tea aphid, the preventing and treating of tea lesser leafhopper
Effect is also significantly lower than embodiment 2.
It can thus be seen that when bitter pueraria root extract and jervine active ingredient are 10wt%, and both proportionings are 1：3 for most
Good active constituent content and proportioning, have good prevention effect to tea aphid, tea lesser leafhopper.
These results suggest that, when bitter pueraria root extract and jervine active ingredient are 10wt%, it is 1 to be matched at both：When 3
(embodiment 2), has good field control effect to maize army worm, cabbage pieris, diamondback moth, tea aphid, tea lesser leafhopper, and
Better than other embodiments (embodiment 1, embodiment 3, embodiment 4, embodiment 5, embodiment 6, embodiment 7, embodiment 8, embodiment
9 and comparison medicament treatment).
The field efficacy of the different embodiment treatment preventing and treating maize army worms of table 3
The field efficacy of the different embodiment treatment preventing and treating cabbage caterpillars of table 4
The field efficacy of the different embodiment treatment preventing and treating diamondback moths of table 5
The field efficacy of the different embodiment treatment preventing and treating tea aphids of table 6
The field efficacy of the different embodiment treatment preventing and treating tea lesser leafhoppers of table 7
A kind of Pesticidal combination containing bitter pueraria root extract and jervine of the invention and application thereof has passed through specific real
Example is applied to be described.Those skilled in the art can use for reference the links such as the appropriate feed change of present disclosure, process conditions
To realize corresponding other purposes, its correlation changes all without departing from present disclosure, and all similar replacements and change are right
It is it will be apparent that being considered as being included within the scope of the present invention for those skilled in the art.
Claims (10)
1. a kind of Pesticidal combination, it is characterised in that active component in the Pesticidal combination is 1 for weight ratio:6~6:1
The composition of bitter pueraria root extract and jervine.
2. Pesticidal combination according to claim 1, it is characterised in that bitter pueraria root extract is 1 with the weight ratio of jervine:
3~3:1.
3. Pesticidal combination according to claim 2, it is characterised in that bitter pueraria root extract is 1 with the weight ratio of jervine:
3。
4. a kind of microemulsion, it is characterised in that it includes claims 1 to 3 any described Pesticidal combination and auxiliary agent；Wherein
The consumption of Pesticidal combination is 1~20 weight %, and auxiliary agent is the weight % of solvent 20~40, the weight % of emulsifying agent 10~25, hydrotropy
The weight % of agent 5~15, the weight % of antifreezing agent 3~5, remaining supplies 100 weight % with water.
5. microemulsion according to claim 4, it is characterised in that the solvent is methyl alcohol.
6. microemulsion according to claim 4, it is characterised in that the emulsifying agent is styryl phenyl polyoxyethylene
One or more combination in ether, APES, polyarylphenol-polyoxyethylene ether phosphate.
7. microemulsion according to claim 4, it is characterised in that the cosolvent be isopropanol, one kind of n-butanol or
Mixture.
8. microemulsion according to claim 4, it is characterised in that the antifreezing agent is ethylene glycol.
9. microemulsion according to claim 4, it is characterised in that the consumption of Pesticidal combination is 5~15 weight %.
10. wild cabbage is prevented and treated according to any described insecticide of claims 1 to 3 or any described microemulsion of claim 4 to 9
The purposes of cabbage caterpillar, diamondback moth, maize army worm, tea aphid or smaller green leaf hopper.
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