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Description
Kill mosquitoes, kill thrips, kill cabbage worms
Aqueous emulsion of natural pyrethrum and preparation method thereof
Technical field
The present invention relates to a kind of Dalmatian chrysanthemum preparation, especially a kind of pyrethrin water emulsion and preparation method thereof.
Technical background
China's agricultural production midium or long term is used chemical pesticide and chemical fertilizer, the use of a large amount of organic nitrogens, organic phosphor, carbamates chemical synthetic pesticide, cause the residual of a large amount of agricultural chemicals, thereby cause the pollution of soil, natural water, agricultural product, even more serious is that residue of pesticide are passed through directly to endanger human and livestock health after the food chain enrichment, use chemical pesticide in addition too much insect is developed immunity to drugs, cause dosage to increase year by year, further increase the weight of the harm of chemical synthetic pesticide. Natural pyrethrum is a kind of inhibition nerve fiber, come from the tagging property plant insecticide of feverfew Dalmatian chrysanthemum, it has the insecticidal activity height,
insecticidal spectrum is wide, and multiple sanitary insect pest, stored grain insects and pest are had good control efficiency, simultaneously in occurring in nature decomposition and residual low easily, wait the homoiothermy animal safer to people and animals, therefore, enjoying the extensive concern of countries in the world, is that one of safest plant insecticide is recommended to closing ball by FAO (Food and Agriculture Organization of the United Nation). But for a long time, since Dalmatian chrysanthemum see the easy resolution characteristic of light and with the immiscible characteristics of water, the formulation development of pyrethrin is restricted always, as application number is the cream preparation that 01145597.7 Chinese patent discloses a kind of pyrethrin, solve the problem of the former pharmaceutically dosage formization of domestic Dalmatian chrysanthemum, also developed formulations such as pulvis, wetting powder, microcapsule formulations afterwards. But there is following problem in existing formulation: 1, organic solvents such as thof equivalent, dimethylbenzene are arranged in the emulsifiable concentrate, not only waste petroleum resources but also can cause the pollution of environment, and because low, the easy firing of burning-point of solvent is restricted on links such as production, storing, use. Organic solvent has the medicament of promotion to crop epidermis, zoodermic osmosis, has increased the chance of agricultural chemicals to chemical injury of crops and person poultry poisoning; Organic solvent constantly is dispersed in the atmosphere in the agricultural chemicals use, causes atmospheric pollution. The environment-friendly advantage of the botanical pesticide that these harm have weakened is restricted its use in high-end organic food desinsection field. 2, existing formulation be difficult to take into account the stability of insecticide efficiency and formulation, and use cost is higher, and large-scale promotion application is caused certain obstacle when solving the Dalmatian chrysanthemum formulationization.
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Product Name
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Insecticide Pyrethrin
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CAS
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8003-34-7
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MF
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C43H56O8
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Specification
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25% 50% 1.5%water Pyrethrin Aqueous Emulsion and Pyrethrum Extract Powder for sale
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Type
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Herbal Extract
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Extract Part
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Flower, root
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Solubility
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Insoluble in water, soluble in most organic solvents.
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Pyrethrin Certificate of Analysis (Analysis method HPLC)
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Testing Item
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Testing Standard
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Testing Result
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Appearance
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yellow liquid
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conform
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Pyrethrins (W/W)
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49~51%
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50.3%
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Pyrethrin I /Pyrethrin II
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1.0~2.0
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1.78
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Introduction
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Pyrethrum is an ancient natural insecticide plant, which is one if a few valuable plant contained high pesticide active ingredients so far, but harmless to humans and animals.
Pyrethrum was recognized as the safest pesticide pollution internationally, with the preparation of health insecticide spray can be used for family health, pesticides can be used in preparation of green vegetables, green fruits, green tea and other cash crops insecticide.
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Function
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1.Pyrethrum extract is used in gain storage and the aerosol and dust can prevent every kind of grain bristletail.
2.It is also mosquito raw material and powder emulsifiable concentrate 3.Pyrethrum extract has capability of execution to vary kind of pests and extensive use in agriculture producing, grain storage and daily life. 4.The spraying of pyrethrum extract to farmland can prevent aphid, snout moth`s larva, stinking, caterpillar, coccid, cabbage caterpillar, bollworm, dark tail leafhopper |
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Pyrethrin Use Precautions
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• Pyrethrin can decompose easliy when meet light, So spraying time preferably be arranged in the evening
• Pyrethrin can not be mixed with lime sulfur mixture, Bordeaux mixture, rosin mixture and other alkaline pesticides. • Pyrethrin Commodity preparations should be stored in a closed container, to avoid high temperature, humidity and direct sunlight. • Pyrethrin is a powerful contact insecticide. When spraying, the pyrethrin solution it will have a better effect when the pyrethins solution contacts insects. |
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Packing
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1kg/bottle, 5kg, 10kg, 25kg/drum
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Delivery time
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•5 days by express,
•10 days by air, •15 days by sea |
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Shipping time by express
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5-7 days, by TNT, DHL, FEDEX, UPS, EMS
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Shipping time by air
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5-7 days, by TNT, DHL, FEDEX, UPS, EMS
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Shipping time by sea
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• South America: around 40-60 days
• Southeast Asia: around 10-25 days • Africa: around 40 days • Europe: around 35 days |
Our products are sold all over the world, you can rest assured.
