A kind of high-load pyrethrin insecticide
Technical field:
The invention belongs to novel pesticide development and application field and field of Environment Protection, be specifically related to a kind of high-load pyrethrin insecticide.
Background technology:
Dalmatian chrysanthemum (PyrethrumcinerariaefoliumTrey) is a kind of ancient pesticide plant, at present extensive use in the world, is one of three large pesticide plants.Pesticidal material in Dalmatian chrysanthemum pyrethrin, to insect knock down or killing effect rapid; Be a kind of broad spectrum pesticide, can be used for agriculture, woods, health pest control, as the multiple lepidopterous larvaes such as aphid, thrips, trialeurodes vaporariorum, fruit bat, beetle, noctuid, cotton bollworm have good control efficiency, and to mosquito, fly, bedbug and cockroach successful.Toxicological testing result show Dalmatian chrysanthemum to people and mammiferous toxicity extremely low, there is no teratogenesis, carcinogenic, mutagenic chronic toxicity, can not remain at mammal body accumulation, be one botanical pesticide safely and effectively, is also the desirable insecticide that pollution-free vegetable produces.
This medicament is unstable in natural environment, is easily decomposed into rapidly water and carbonic acid gas, although residual any noxious material, free from environmental pollution, also affects its effect.
The current content of this medicament is lower, and according to Chinese agricultural chemicals Information Network being announced the soluble liquid that most high-load is 5% missible oil and 3%, patent searching does not have high-load pyrethrin product and technology yet.
Summary of the invention:
The object of this invention is to provide a kind of environmental protection, stable and efficient high-load pyrethrin insecticide.
High-load pyrethrin insecticide of the present invention, it is characterized in that, by mass fraction, comprise pyrethrin 49 ~ 66.5% and emulsifier 5 ~ 30%, described emulsifier is fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, polyethylene glycol dioleic acid ester, polyethylene glycol monooleate or alkylphenol polyoxyethylene, or the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether.
Described fatty alcohol-polyoxyethylene ether and the mixture of polyoxyethylene nonylphenol ether are preferably the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.
Pyrethrin of the present invention adds with the form of pyrethrosin primary medicine, former medicine is oily liquids, active ingredient 70%, and other are fatty acid and a small amount of moisture, when preparing high-load pyrethrin insecticide, former medicine usage amount is 70 ~ 95%, and amounting to effective ingredient pyrethrin content is 49-66.5%.
Preferably, described high-load pyrethrin insecticide, by mass fraction, comprises pyrethrosin primary medicine 90% and fatty alcohol-polyoxyethylene ether 10%.
Preferably, described high-load pyrethrin insecticide, by mass fraction, comprises pyrethrosin primary medicine 95% and fatty alcohol-polyoxyethylene ether 5%.
Above-mentioned high-load pyrethrin method for producing insecticide is: in its component ratio, in pyrethrosin primary medicine, add emulsifier, make pyrethrin emulsification by emulsifier, forms pyrethrin and fatty alcohol-polyoxyethylene ether uniform liquid mutually.Can be dispersed in water after being watered.
Second object of the present invention is to provide another high-load pyrethrin insecticide, it is characterized in that, by mass fraction, comprise pyrethrin 56 ~ 63%, oil 5 ~ 10% and emulsifier 5 ~ 10%, described emulsifier is fatty alcohol-polyoxyethylene ether, polyoxyethylene nonylphenol ether, polyethylene glycol dioleic acid ester, polyethylene glycol monooleate or alkylphenol polyoxyethylene, or the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether, described oil is mineral oil, vegetable oil or waste oil.
Described fatty alcohol-polyoxyethylene ether and the mixture of polyoxyethylene nonylphenol ether are preferably the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.
Pyrethrin of the present invention adds with the form of pyrethrosin primary medicine, former medicine is oily liquids, active ingredient 70%, and other are fatty acid and a small amount of moisture, when preparing high-load pyrethrin insecticide, former medicine usage amount is 80-90%, and amounting to effective ingredient pyrethrin content is 56 ~ 63%.
Described mineral oil is preferably agricultural sprinkling oil, as 125SN base oil or the narrow agricultural sprinkling oil of 16-21 carbon; Described vegetable oil is preferably corn oil, soybean oil, ready-mixed oil or palm wet goods; Described waste oil derive from regular bleeding point slightly refine after waste oil.
Preferably, described high-load pyrethrin insecticide, by mass fraction, comprises pyrethrosin primary medicine 80%, oil 10% and fatty alcohol-polyoxyethylene ether and the polyoxyethylene nonylphenol ether mixture 10% that mixes of 3:2 in mass ratio.
Preferably, described high-load pyrethrin insecticide, by mass fraction, comprises pyrethrosin primary medicine 90%, corn oil 5% and fatty alcohol-polyoxyethylene ether and the polyoxyethylene nonylphenol ether mixture 5% that mixes of 3:2 in mass ratio.
High-load pyrethrin method for producing insecticide of the present invention is: by its component content, emulsifier and oil is added in pyrethrosin primary medicine, stir, form pyrethrin, oil and emulsifier uniform liquid mutually, obtain high-load pyrethrin insecticide thus.Can be dispersed in water after being watered.
High-load pyrethrin utilization of pesticides method of the present invention is: using method in land for growing field crops and booth, backpack or other model sprayers; get high-load pyrethrin insecticide of the present invention and be watered, stir and make medicament dispersed in water, then foliage spray.Good control efficiency is had to small insects, as comprised pyrethrosin primary medicine 80%, 8000 times of uses.Citrus red mite control efficiency reaches more than 90%, has killing action to ovum simultaneously.Using method in family's control of insect, gets 1mL above-mentioned high-load pyrethrin insecticide in watering can, converts 4L, and shake makes medicament dispersed in water, then directly sprays pest activity district and generating region, or pest infestation district.
The present invention carries out emulsification by the suitable emulsifier of screening to pyrethrin, does not use solvent, obtain pyrethrin content up to more than 49% the pyrethrin insecticide of high-load.This high-load pyrethrin insecticide not only has good desinsection deinsectization effect, and indoor measurement result shows, high-load pyrethrin insecticide of the present invention is up to 100% to flour mite killing action, reaches 90% to the trapping effect of cockroach.The product developed is to person poultry harmless, to baby safe, nontoxic to pet, is the desirable health medication of family, effectively can suppresses the generation of insect.
High-load pyrethrin insecticide of the present invention, is applicable to land for growing field crops or greenhouse corps insect, as controls of insect such as evil mite, coccid, aleyrodid, aphid, diamond-back moth, flea beetles; Also can be used in home gardening control of plant disease, as the disease such as plant powdery mildew, dark mildew; To person poultry harmless, to baby safe, nontoxic to pet.
High-load pyrethrin insecticide of the present invention eliminates the use of solvent, thus reduces the risk of environmental pollution, improves the control efficiency of medicament simultaneously.The present invention adds mineral oil, vegetable oil and waste oil, adds the stability of pyrethrin, increases its insecticidal effect.
High-load pyrethrin insecticide of the present invention is a kind of pyrethrin insecticide of environment-friendly type high-load, has good insecticidal effect, and market prospects are good.This insecticide can be used for health medication, effectively can suppress the generation of mosquito, fly, bedbug and cockroach, also can be used for agriculture and forestry injurious insect control, this medicament can also make additive with waste oil, effective utilization for waste oil provides an approach, thus control waste oil is back on dining table.
Embodiment:
Following examples further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 95% and fatty alcohol-polyoxyethylene ether 5%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, and other are fatty acid and a small amount of moisture.Under normal temperature and pressure, in pyrethrosin primary medicine, add fatty alcohol-polyoxyethylene ether, be uniformly mixed, form 66.5% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 12000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 2:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 90% and fatty alcohol-polyoxyethylene ether 10%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, and other are fatty acid and a small amount of moisture.Under normal temperature and pressure, in pyrethrosin primary medicine, add fatty alcohol-polyoxyethylene ether, be uniformly mixed, form 63% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 12000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 3:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 80% and fatty alcohol-polyoxyethylene ether 20%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, and other are fatty acid and a small amount of moisture.Under normal temperature and pressure, in pyrethrosin primary medicine, add fatty alcohol-polyoxyethylene ether, be uniformly mixed, form 56% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 10000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 4:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 70% and fatty alcohol-polyoxyethylene ether 30%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, and other are fatty acid and a small amount of moisture.Under normal temperature and pressure, in pyrethrosin primary medicine, add fatty alcohol-polyoxyethylene ether, be uniformly mixed, form 49% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 10000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 5:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 80%, mineral oil 10% and emulsifier 10%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, other are fatty acid and in a small amount moisture, and described emulsifier is the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.Under normal temperature and pressure, in pyrethrosin primary medicine, add mineral oil (125SN base oil) and emulsifier, be uniformly mixed, form 56% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 10000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 6:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 80%, palm oil 10% and emulsifier 10%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, other are fatty acid and in a small amount moisture, and described emulsifier is the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.Under normal temperature and pressure, in pyrethrosin primary medicine, add palm oil and emulsifier, be uniformly mixed, form 56% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 10000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 7:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 80%, waste oil 10% and emulsifier 10%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, other are fatty acid and in a small amount moisture, and described emulsifier is the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.Under normal temperature and pressure, in pyrethrosin primary medicine, add waste oil and emulsifier, be uniformly mixed, form 56% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 10000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid, for vegetable-crop pest-insect control, can be used for control thrips, flea beetle and plant hopper etc.
Embodiment 8:
The high-load pyrethrin insecticide of the present embodiment, by gross mass mark 100%, comprise pyrethrosin primary medicine 90%, corn oil 5% and emulsifier 5%, described pyrethrosin primary medicine, active ingredient pyrethrin content is 70%, other are fatty acid and in a small amount moisture, and described emulsifier is the mixture of fatty alcohol-polyoxyethylene ether and polyoxyethylene nonylphenol ether 3:2 mixing in mass ratio.Under normal temperature and pressure, in pyrethrosin primary medicine, add corn oil and emulsifier, be uniformly mixed, form 63% pyrethrin emulsion, obtain the high-load pyrethrin insecticide of the present embodiment.Be watered 2000 times, for the control of citrus red mite, control efficiency is more than 95%; For preventing and treating the maintenance of family flowers and trees, there is good control efficiency to coccid, thrips and aleyrodid.
Embodiment 9
Indoor " tetranychid slide infusion process " (NY/T1154.12) (Slide-dipmethodimmersion) measures panonychus citri female one-tenth mite lethal effect, evaluates its synergy level.Get the female one-tenth mite of panonychus citri of raising, choose except dead mite after 24h, hinder mite, then with medicament (infusion process) process, choose the single worm of mite alive after 24h and raise 10d, observe and record survival female become mite quantity.The dead number of mite recorded into by meter, calculates female one-tenth mite lethality and corrected mortality.5 repetitions.
Dead population number/insect population radix * 100 after control efficiency (%)=process
Prepared by medicament: by preparation method's preparation in embodiment, contrast medicament 5% pyrethrin missible oil and 95% mineral oil emulsion market are bought.
Concrete outcome is as shown in table 1:
Table 1 different formulations product insecticidal effect contrasts
Medicament |
Formula |
Insecticidal effect (%) |
66.5% pyrethrin emulsion (embodiment 1) 12000 times |
Pyrethrin+emulsifier |
100%A |
63% pyrethrin emulsion (embodiment 2) 12000 times |
Pyrethrin+emulsifier |
100%A |
56% pyrethrin emulsion (embodiment 3) 10000 times |
Pyrethrin+emulsifier |
100%A |
49% pyrethrin emulsion (embodiment 4) 10000 times |
Pyrethrin+emulsifier |
100%A |
56% pyrethrin emulsion (embodiment 5) 10000 times |
Pyrethrin+mineral oil+emulsifier |
100%A |
56% pyrethrin emulsion (embodiment 6) 10000 times |
Pyrethrin+vegetable oil+emulsifier |
100%A |
56% pyrethrin emulsion (embodiment 7) 10000 times |
Pyrethrin+waste oil+emulsifier |
100%A |
63% pyrethrin emulsion (embodiment 8) 2000 times |
Pyrethrin+vegetable oil+emulsifier |
100%A |
5% pyrethrin missible oil (commodity) 1500 times |
Pyrethrin+organic solvent+auxiliary agent |
89.3%B |
95% mineral oil emulsion (commodity) 200 times |
Mineral oil+emulsifier |
87.4%B |
* capitalization represents in 0.01 level difference significance.