CN101396026A - Plant pesticide capable of preventing and treating stored grain insects and use thereof - Google Patents
Plant pesticide capable of preventing and treating stored grain insects and use thereof Download PDFInfo
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- CN101396026A CN101396026A CNA200810058942XA CN200810058942A CN101396026A CN 101396026 A CN101396026 A CN 101396026A CN A200810058942X A CNA200810058942X A CN A200810058942XA CN 200810058942 A CN200810058942 A CN 200810058942A CN 101396026 A CN101396026 A CN 101396026A
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- farm chemical
- aalii
- pesticide
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Abstract
The invention discloses a botanical farm chemical for preventing pests in stored grain and the application thereof, belonging to the technical field of botanical farm chemical. The farm chemical is prepared by the following method: aalii seeds ground and sieved with a 40 mesh screen are taken as raw materials which are added with analytically pure cyclohexane by a material-liquid ratio of 1 : 15 and the mixture undergoes extraction by a microwave method with microwave power of 650W and extraction time of 150s. The farm chemical is mainly applied for suffocating, poisoning sitophilus zeamais which is a pest in stored grain and inhibiting population. The application effect is good: the suffocating activity LC50 is 3252.80mg/L; the LD50 of poisonous function of 7d and 14d is respectively 1.6646g/kg and 1.1994g/kg; the population inhibition rate reaches 68% when the farm chemical has a concentration of 2000mg/kg. The invention uses aalii that is long considered as ill weeds to prepare new botanical farm chemical which can be used for preventing sitophilus zeamais. The botanical raw material resources abound, and the invention has low cost and is environment-friendly.
Description
Technical field
The present invention relates to the plant pesticide technical field, particularly a kind of plant pesticide of preventing and treating grain storage pest.
Background technology
Along with people improve day by day to the quality requirement of environment and agricultural byproducts, the drawback of chemical pesticide exposes gradually, the environmental pollution that the long-term use in large quantities of chemical pesticide causes, pest resistance to insecticide reach the uneasy congruent a series of problems of people and animals more and more are subjected to people's attention.On the one hand because the long-term single use of medicaments such as phosphine makes grain storage pest such as corn weevil produce serious pesticide resistance to these medicaments; On the other hand, some grain storage medicaments are disabled because of problem such as damage the ozone layer, residual and carcinogenic, as Celfume, chlorpyrifos-methyl etc.This just requires us to seek Prevention Technique non-chemically, utilize the insecticide active substance of natural resources extractions such as plant, itself should have poisoning, repellent, food refusal and the characteristics of inhibition of growing, and so not only can reduce the pesticide resistance of insect, can reduce the residue of pesticide in the cereal simultaneously.
Aalii [dodonaea viscosa (linn.) Jacq], have another name called akeake, pine torch bavin, lopseed etc., the shrub or the dungarunga that belong to Sapindaceae, Salicaceae Salix shrub plant, high 3-5 rice, dark violet redness of sprig or grey black, leaf falls lanceolar or the shape of falling ovum ellipse, long 3-6 centimetre, wide 1-2 centimetre, edge tool serration.Mainly be distributed in the global torrid zone and subtropical zone, generally be grown in the hillside of arid, between sand ground and undergrowth, be considered to a kind of malignant weed for many years, cause the degeneration on grassland, have a strong impact on the development of animal husbandry.In recent years because it is drought-enduring, the cause of growing power tanacity, abominable as the plant of checking winds and fixing drifting sand at China's environment, the area of afforestation difficulty is with the beginning artificial planting, as Jinsha jiang River dry-hot valley, ground such as the Qinling Mountains have begun artificial establishing in large scale, and plant resources is abundant, therefore, aalii being developed to the novel plant agricultural chemicals will have broad application prospects.
In the prior art plant pesticide because of its have to people and animals' low toxicity or nontoxic (Wang Huayuan. nearly ten years China plant pesticide thematic literature summaries. agricultural chemicals, 2,003 42 (3): 11-13) environmental protection, nuisanceless, damage by disease and insect be difficult for producing resistance, be the advantage such as recycling to natural plant resource, becomes the research focus.Having found at present has kind surplus the material nearly 1100 of inhibition, interference effect to the insect growth, and what wherein derive from plant just has a kind more than 1000, has now developed a series of fruitful products, as pyrethrins, rotenone, nicotine etc.But make full use of the plant resources of China's abundant, excavate and innovate more plant pesticide, comprise plant or the purposes of not excavating paying attention to forefathers and do not study, become noxious plant into useful plants etc., remain one of the vital task in plant protection field.
The inventor will be considered to cause grass-land deterioration for many years, have a strong impact on the malignant weed aalii plant that animal husbandry develops through system research and suitable preparation method, has developed to innovation the new purposes of aalii plant pesticide and control grain storage pest corn weevil thereof.Relevant aalii plant seed oils is produced through suitable, and, poisoning stifling as the grain storage pest corn weevil is had, the inhibiting research of population do not appear in the newspapers.
Summary of the invention
The object of the present invention is to provide a kind of new plant pesticide of preventing and treating the grain storage pest corn weevil.
Another object of the present invention provides new plant pesticide of the present invention in the application that prevents and treats the grain storage pest corn weevil, relates separately in the application of the grain storage pest corn weevil being carried out fumigant insect killing; The application that the grain storage pest corn weevil is killed; The grain storage pest corn weevil is carried out the application that population suppresses.
The present invention has overcome and also will not be considered to malignant weed aalii plant in the prior art and develop a kind of defective that the grain storage pest corn weevil is had stifling, poisoning, the inhibiting novel plant agricultural chemicals of population.
The present invention compared with prior art has following advantage:
1, aalii distributes extensively, and at China's Jinsha jiang River dry-hot valley, ground such as the Qinling Mountains have begun artificial establishing in large scale, and plant resources is abundant, thereby cost is low, has a extensive future.
Prove through correlation test that 2, the aalii plant seed oils through suiting to produce can have stifling to the grain storage pest corn weevil, the effect that poisoning and population suppress, and toxicity is less, is a kind of relatively medicinal plants of safety, environmental protection.
3, the present invention can make this malignant weed of aalii have bigger economic and social benefit.
4, the present invention's stifling to the grain storage pest corn weevil, poisoning and population inhibitory action are respond well, to corn weevil fumigation activity LC
50Be 3252.80mg/L; To the toxic action 7d of corn weevil and the LD of 14d
50Be respectively 1.6646g/kg and 1.1994g/kg; When concentration is 2000mg/kg, the inhibiting rate of corn weevil is reached 68.04%.
Purpose technical scheme of the present invention is as follows:
1, a kind of plant pesticide of preventing and treating grain storage pest, described plant pesticide is that the formal name used at school by raw material is the seed of the aalii plant of dodonaea viscosa, and the product that obtains by following method: above-mentioned aalii plant seed is pulverized, cross 40 mesh sieves as raw material, add analytically pure cyclohexane by solid-liquid ratio 1:15, extract microwave power 650W, extraction time 150s with microwave method.
2, with above-mentioned plant pesticide the grain storage pest corn weevil is carried out the application of fumigant insect killing.
3, the application of the grain storage pest corn weevil being killed with above-mentioned plant pesticide.
4, with above-mentioned plant pesticide the grain storage pest corn weevil is carried out the application that population suppresses.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
This plant pesticide can mix use with other agricultural chemicals, but must guarantee that mixed medicament has no side effect to pesticide recovery of the present invention.
1 one kinds of preparations (hereinafter to be referred as plant pesticide of the present invention) that prevent and treat the plant pesticide of grain storage pest of embodiment
Plant pesticide of the present invention is that the formal name used at school by raw material is the seed of the aalii plant of dodonaea viscosa, and the product that obtains by following method: above-mentioned aalii plant seed is pulverized, cross 40 mesh sieves as raw material, add analytically pure cyclohexane by solid-liquid ratio 1:15, extract with microwave method, microwave power 650W, extraction time 150s.
The application that embodiment 2 plant pesticides of the present invention are fumigated corn weevil
1, test material
(1) ((Sitophilus zeamais Motschulsky)---with the wheat is raising to corn weevil, after inserting the 2h that sterilizes in 80 ℃ of baking ovens before feed uses, adjusting water content is 18%, insert about 100 of examination worm, place under (27 ± 1) ℃ environment and raise, behind the 15d adult sieve that inserts is gone, corundum Sitophilusspp. imago takes place in a large number behind about 30d, and selecting wherein, the adult of big or small basically identical carries out biologicall test.
(2) trial drug---be plant pesticide of the present invention, by for this laboratory provides, this trial drug obtains by the following method:
Trial drug is that the formal name used at school of raw material is the seed of the aalii plant of dodonaea viscosa, and the product that obtains by following method: above-mentioned aalii plant seed is pulverized, cross 40 mesh sieves as raw material, press solid-liquid ratio and add analytically pure cyclohexane at 1: 15, extract with microwave method, microwave power 650W, extraction time 150s.
2, test method
Adopt the airtight fumigating system of triangular flask, with the plant pesticide of the present invention of variable concentrations in the pipette, extract table 1, splashing into a diameter is in the little measuring cup of 2cm, is placed on triangular flask (600ml) bottom.Insert the examination worm then in little gauze bag, pouch is suspended on triangular flask central authorities, seal airtight with the flexible glue plug rapidly.Every bottle graft is gone into 30 examination worms, and each is handled and repeats 3 times, establishes blank, place under (27 ± 1) ℃ environment, and the dead borer population of 24h " Invest, Then Investigate ", and calculate lethality and corrected mortality, result of the test sees Table 1.
Table 1 plant pesticide of the present invention is to the fumigation activity (24h) of corundum Sitophilusspp. imago
Plant pesticide of the present invention as known from Table 1 has tangible fumigation activity to corn weevil.After handling 24h, when concentration was 3752.67mg/L, the corn weevil lethality had reached 84.44%, and along with the reduction of concentration, fumigation activity also progressively reduces.Plant pesticide of the present invention is Y=16.212x-51.953 to the virulence regression equation of corn weevil, LC
50Be 3252.80mg/L, correlation coefficient reaches 0.9798, illustrates that plant pesticide of the present invention has good fumigant insect killing effect to corn weevil.
The application that embodiment 3 plant pesticides of the present invention are killed the grain storage pest corn weevil
1, test material
Corn weevil, trial drug-plant pesticide of the present invention are identical with embodiment 2.
2, test method
Adopt feed to mix the medicine method: take by weighing feed wheat 100g in the 500ml wide-mouth bottle, respectively with 2000,1000,500, the dosage of 250mg/kg admixes each extract, is solvent with acetone and establishes contrast, 3 repetitions are established in each processing.Drop into each 30 of corundum Sitophilusspp. imagos in every bottle, build, place in 28 ± 1 ℃ of constant incubators and raise with pricking foraminate bottle cap, respectively at 7 days, 14 days check results, and calculate lethality and corrected mortality, result of the test sees Table 2.
Table 2 plant pesticide of the present invention is to the cytotoxicity of corundum Sitophilusspp. imago
By table 2 as seen, plant pesticide effect 2d of the present invention, toxic action is not obvious, along with the prolongation of time, to the toxic action crescendo of corn weevil, behind 7d and 14d, the lethal dose of 50 of corn weevil is respectively LD
501.6646g/kg and 1.1994g/kg.
Embodiment 4 plant pesticides of the present invention carry out the application that population suppresses to the grain storage pest corn weevil
1, test material
Corn weevil, trial drug-plant pesticide of the present invention are identical with embodiment 2.
2, test method
Adopt feed to mix the medicine method: with Cans clean, oven dry, in bottle, add the 50g wheat flour as feed, and put into 10g oats flakes and make things convenient for it to lay eggs.Extract is formulated as four variable concentrations in the table 3, adds the acetone soln of 1mL extract in each bottle, in the process that drips, fully mix, add the acetone of equivalent in the control bottle with glass bar.After treating the acetone volatilization, every bottle graft is gone into 30 of corundum Sitophilusspp. imagos, uses film seal, places under (27 ± 1) ℃ environment and cultivates, and each is handled three times and repeats.Sift out adult after 1 month, record insect population number calculates the population inhibiting rate: (result of the test sees Table 3) after about 60 days
Table 3 plant pesticide of the present invention is to the inhibitory action of corundum Sitophilusspp. imago
Table 3 data show, plant pesticide of the present invention has the inhibition effect to the corn weevil population, and in the test dose scope, along with the increase of concentration, its inhibiting rate also increases, and when concentration was 2000mg/kg, inhibiting rate reached 68.04%.
Claims (4)
1, a kind of plant pesticide of preventing and treating grain storage pest, it is characterized in that: described plant pesticide is that the formal name used at school by raw material is the seed of the aalii plant of dodonaea viscosa, and the product that obtains by following method: above-mentioned aalii plant seed is pulverized, cross 40 mesh sieves as raw material, add analytically pure cyclohexane by solid-liquid ratio 1:15, extract microwave power 650W, extraction time 150s with microwave method.
2, the described plant pesticide of claim 1 carries out the application of fumigant insect killing to the grain storage pest corn weevil.
3, the described plant pesticide of claim 1 application that the grain storage pest corn weevil is killed.
4, the described plant pesticide of claim 1 carries out the application that population suppresses to the grain storage pest corn weevil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810058942XA CN101396026A (en) | 2008-09-22 | 2008-09-22 | Plant pesticide capable of preventing and treating stored grain insects and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810058942XA CN101396026A (en) | 2008-09-22 | 2008-09-22 | Plant pesticide capable of preventing and treating stored grain insects and use thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101396026A true CN101396026A (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200810058942XA Pending CN101396026A (en) | 2008-09-22 | 2008-09-22 | Plant pesticide capable of preventing and treating stored grain insects and use thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113449A (en) * | 2013-03-11 | 2013-05-22 | 云南农业大学 | Aalii saponin compound as well as preparation method and application thereof |
| CN104322597A (en) * | 2014-11-23 | 2015-02-04 | 青岛锐志农业技术服务有限公司 | Pesticide for preventing and controlling stored grain pests and preparation method thereof |
| CN106172511A (en) * | 2016-06-30 | 2016-12-07 | 广西壮族自治区烟草公司百色市公司 | A kind of method preventing and treating tobacco mosaic virus (tmv) |
-
2008
- 2008-09-22 CN CNA200810058942XA patent/CN101396026A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103113449A (en) * | 2013-03-11 | 2013-05-22 | 云南农业大学 | Aalii saponin compound as well as preparation method and application thereof |
| CN104322597A (en) * | 2014-11-23 | 2015-02-04 | 青岛锐志农业技术服务有限公司 | Pesticide for preventing and controlling stored grain pests and preparation method thereof |
| CN106172511A (en) * | 2016-06-30 | 2016-12-07 | 广西壮族自治区烟草公司百色市公司 | A kind of method preventing and treating tobacco mosaic virus (tmv) |
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Open date: 20090401 |