A kind of Pesticidal combination containing Tea Saponin
Technical field
The present invention relates to a kind of Pesticidal combination containing Tea Saponin, particularly, relate to a kind of Tea Saponin Pesticidal combination that improves desinsection speed.
Background technology
Tea Saponin (Teasaponia) is a kind of pentacyclic triterpenoid extracting in tea-seed pancake.It is a kind of natural nonionic surface active agent of function admirable.Along with the application study work of Tea Saponin deepens continuously, the application of Tea Saponin in daily-use chemical industry, light textile, medicine and pesticide industry is also more and more extensive.Bibliographical information Tea Saponin is mainly used in wettable powder as fields such as wetting agent, vegetable insecticide and bactericide, plant growth regulations on pesticide industry
Tea Saponin joins after synthetic pesticide or biogenic pesticide, itself can reach the toxic effect to insect, can also reduce the consumption of pesticide original medicine simultaneously, for example add 1000 and 2000mg/L Tea Saponin after can reduce respectively Rogor consumption 18.13% and 53.70%.This can reduce use cost largely for expensive pesticide species, also can be therefore and reduce the harmful effects such as residual contamination to environment, improve agricultural chemicals safety in utilization.That is to say, Tea Saponin can play synergistic effect to a lot of agricultural chemicals.
Because Tea Saponin itself is exactly good insecticide, but its drug effect performance is slow, the drug effect phase is long, insecticidal effect is not obvious in a short time, rarely have at present report can improve the auxiliary agent of Tea Saponin to pest controling effect, the composition of the control efficiency that can strengthen Tea Saponin and other insecticides is not provided yet.
For solving the problems of the technologies described above, the invention provides a kind of insecticides adjuvant, this pesticidal preparations can effectively solve the problem of residue of pesticide.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of Tea Saponin Pesticidal combination that improves desinsection speed, said composition comprises Tea Saponin, alkyl glycoside and sodium alginate, and wherein the weight ratio of Tea Saponin, alkyl glycoside and sodium alginate is 5-15: 1-5: 1-5.
In above-mentioned composition, can also comprise fulvic acid, wherein the weight of fulvic acid and the weight ratio of Tea Saponin are 0.5-1: 1.
In above-mentioned composition, can also comprise other insecticides, other insecticides can be pyrethroids, natural pyrethrins, tetramethrin, S-bioallethrin, fenfluthrin, prallethrin etc.; Organophosphorus ester, as first Toyodan; Carbamates, as carbofuran, furathiocarb etc.; Macrolide, as Olivomitecidin, the close mycin that compares; Organochlorine compound, as 5a,6,9,9a-hexahydro-6,9-methano-2,4, lindane etc.; Amidine class, as galecron, two worm amidines etc.; Chlorine nicotinyl compounds, as Imidacloprid, thiacloprid, pyridine worm miaow etc.Preferably, can comprise Imidacloprid.
Preferably, other insecticides account for 10% of Tea Saponin weight in above-mentioned composition.
In above-mentioned Tea Saponin Pesticidal combination, preferred, alkyl glycoside is alkyl glycoside class material arbitrarily.
Preferably, above-mentioned Tea Saponin Pesticidal combination can be prepared into wetting powder, sustained release agent, pulvis, micro-capsule suspension, dispersible dense dose, seed treatment emulsion, aqueous emulsion, large granula, granule, microemulsion, oil-suspending agent, finish, any one in seed with coated pesticidal, suspension emulsion, water-soluble granule, soluble thick agent, water-dispersible granules, preferably, above-mentioned Tea Saponin Pesticidal combination is prepared into aqueous emulsion.
Above-mentioned Tea Saponin Pesticidal combination of the present invention can, by the insecticides adjuvant preparation method preparation of this area routine, for example, by being uniformly mixed, or by methods such as high speed shear mixing, not have special restriction.
The present invention also provides above-mentioned Tea Saponin Pesticidal combination for improving the desinsection speed of insecticide and strengthening the purposes of pest controling effect, and wherein said insecticide is preferably Imidacloprid.
Tea Saponin used, alkyl glycoside, sodium alginate, fulvic acid in the present invention, be the conventional substances that can buy on market, is not particularly limited.
The present invention also provides a kind of composition that can be used in the control efficiency that improves Tea Saponin and other insecticide compositions, said composition comprises alkyl glycoside, sodium alginate and fulvic acid, wherein the weight ratio of alkyl glycoside, sodium alginate and fulvic acid is 2: 1: 5, or 3: 1: 8,2: 3: 10, other insecticides were Imidacloprid.
The beneficial effect of technique scheme of the present invention is that the Tea Saponin Pesticidal combination of the application of the invention, can strengthen the drug effect of agricultural chemicals Tea Saponin, and the desinsection speed of Tea Saponin is provided.Tea Saponin Pesticidal combination of the present invention can also improve the drug effect of other agricultural chemicals and accelerate drug effect speed.
Embodiment
In order to understand the present invention, further illustrate the present invention with embodiment below, but do not limit the present invention.
Embodiment 1 10% Tea Saponin aqueous emulsion
Get Tea Saponin 5kg, alkyl glycoside 2kg, sodium alginate 1kg, fulvic acid 5kg, 37kg water, fully mixes, and said mixture is extracted into high shear mixing still, starts high-shear emulsifying homogenizer, and material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, obtain 10% Tea Saponin aqueous emulsion.
Embodiment 2 20% Tea Saponin aqueous emulsions
Get Tea Saponin 10kg, alkyl glycoside 3kg, sodium alginate 1kg, fulvic acid 8kg, 28kg water, fully mixes, and said mixture is extracted into high shear mixing still, starts high-shear emulsifying homogenizer, and material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, obtain 20% Tea Saponin aqueous emulsion.
Embodiment 3 30% Tea Saponin aqueous emulsions
Get Tea Saponin 15kg, alkyl glycoside 2kg, sodium alginate 3kg, fulvic acid 10kg, 20kg water, fully mixes, and said mixture is extracted into high shear mixing still, starts high-shear emulsifying homogenizer, and material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, obtain 30% Tea Saponin aqueous emulsion.
Embodiment 4 blank liquid
Alkyl glycoside 7kg, sodium alginate 8kg, fulvic acid 15kg, 20kg water, fully mixes, and said mixture is extracted into high shear mixing still, starts high-shear emulsifying homogenizer, and material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, obtain blank liquid.
Embodiment 5 insecticide effect embodiment
By the 10% Tea Saponin aqueous emulsion of embodiment 1-3,, 20% Tea Saponin aqueous emulsion and 30% Tea Saponin aqueous emulsion, and the blank of embodiment 4, the former powder of 60% Tea Saponin (Tea Inst., Chinese Academy of Agricultural Sciences's purchase), be diluted to respectively low age imported cabbageworm on finite concentration spraying control Chinese cabbage, then observe control efficiency, 1-3 days statistics control efficiency after spray medicine, control efficiency accounts for the percentage calculation of diamond-back moth total amount with the quantity of dead low age imported cabbageworm.Valid density refers to and sprays the concentration that contains Tea Saponin in liquid, sprays blank and sprays according to the extension rate of the aqueous emulsion of embodiment 1.
Concrete outcome is as following table:
Found through experiments, the Tea Saponin aqueous emulsion that comprises alkyl glycoside, fulvic acid and sodium alginate, due to the effect of three kinds of auxiliary components, makes Tea Saponin aqueous emulsion increase the speed of killing of imported cabbageworm, and has increased insect killing effect.Because auxiliary agent does not have insecticidal activity, so by making the combination of used additives, actual listing provides the insecticide efficiency of Tea Saponin.
The effect that embodiment 6 mixes other insecticides
Get Tea Saponin 10kg, alkyl glycoside 3kg, sodium alginate 1kg, fulvic acid 8kg, 1kg Imidacloprid, 27kg water, fully mixes, and said mixture is extracted into high shear mixing still, starts high-shear emulsifying homogenizer, and material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, obtain 22% Tea Saponin Imidacloprid aqueous emulsion.
Control sample is prepared as follows:
Get Tea Saponin 10kg, alkylaryl formaldehyde resin APEO 4kg, sodium lignin sulfonate 3kg, 1kg Imidacloprid, 32kg water, fully mixes, and said mixture is extracted into high shear mixing still, start high-shear emulsifying homogenizer, material is carried out to high speed shear mixing; After reaching particle diameter 5-15nm, just can stop high shear, must contrast 22% Tea Saponin Imidacloprid aqueous emulsion.
According to the insecticidal effect of diamond-back moth on the method test Chinese cabbage of embodiment 5, valid density refers to Tea Saponin and the concentration of Imidacloprid gross weight in solution.
Experimental result is as follows:
Can find out from experimental result, by the composition of Tea Saponin and Imidacloprid, add after alkyl glycoside, sodium alginate and fulvic acid, strengthened the desinsection effect of Tea Saponin and imidacloprid composition, and desinsection speed also be accelerated.Alkyl glycoside, sodium alginate and fulvic acid can strengthen the drug effect of Tea Saponin and imidacloprid composition thus, and the composition of Tea Saponin, alkyl glycoside, sodium alginate and fulvic acid can strengthen the drug effect of Imidacloprid in other words.