CN1147228C - Low toxicity active colloidal plant protective agent - Google Patents
Low toxicity active colloidal plant protective agentInfo
- Publication number
- CN1147228C CN1147228C CNB99120025XA CN99120025A CN1147228C CN 1147228 C CN1147228 C CN 1147228C CN B99120025X A CNB99120025X A CN B99120025XA CN 99120025 A CN99120025 A CN 99120025A CN 1147228 C CN1147228 C CN 1147228C
- Authority
- CN
- China
- Prior art keywords
- water
- low toxicity
- protective agent
- polyvinyl alcohol
- plant protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The present invention relates to an active colloid plant protection agent with high efficiency, low toxicity, no residue and no public damage. The main raw material comprises polyvinyl alcohol, water-soluble silicate, a surface active agent, etc.; after the main raw material is applied to plants, the gas points and respiratory tracts of various insects or non-reluctance pathogens are closed so as to reach the purpose of oxygen deficiency and death from suffocation; furthermore, limbs, feet, wings and antennae of various insects can be firmly attached; thereby, the insects can not move and can be killed. The composition has the advantages of wide disinsection, and low cost; the pest disaster of agronomic crops is not easy to generate medicine resistance, and the present invention can be used as a synergistic agent for various agricultural chemicals, and can have obvious accretion function to plant growth.
Description
The present invention relates to a kind of plant insect of killing and play the pesticide synergistic agent effect simultaneously, can also be as the composition of plant root-inducing hormone.
Present normally organic phosphor, organic sulfur, organochlorine, biologic product and of domestic and international widely used agricultural chemicals from the insecticide of plant extract, organic phosphor, organic sulfur, organochlorine toxicity are big, to the toxic property of people and animals, also have residual, biologic product cost height, development rate is fast inadequately at present; And the insecticide that extracts from plant has to the also toxic property of people and animals, insect is developed immunity to drugs, as pyrethrins etc., so these years, many scientists constantly work out low toxicity, agricultural chemicals efficiently, satisfy the needs of agricultural development, also there are some to study pesticide synergistic agent, in agricultural chemicals, add some active substances its consumption is reduced, and improve the disease-resistant effectiveness of agricultural insecticide, but make progress unhappy.
In leaves of plants leaven or growth regulator, people use mainly contains several classes such as plant hormone, nourishing additive agent and trace element, but the product that can have both desinsection and short long plant growing simultaneously is few, some also rests on the simple combination that trace element adds agricultural chemicals, Foliage Absorption is very little, the disinsection prophylaxis effect is also bad, and is residual in addition, and ecotope is played destruction.
The purpose of this invention is to provide the rapid kill pests of a kind of energy, can play the pesticide synergistic effect, can also be as the composition of plant growth promoter.
The inventor is through scientific experiment and the research of more than ten years, find that the slow reason of using at present of the most of drug effects of agricultural chemicals is need be detained the long period at digestive tract after insect eats into just to work, the steroids agricultural chemicals that has needs 5-7 talent to work, thereby medication is more.Can use a kind of quick-acting agricultural chemicals, make insect a few minutes or half an hour with interior effect? perhaps adding some synergist (promoter) in agricultural chemicals is given full play to pesticide effectiveness? the inventor is from the principle of surface chemistry and particulate colloid, find that some colloid substance ejection back film forming speed is very fast, these particulate colloidal substances can stop up the respiratory tract of insect rapidly, fixedly insect limbs, wing and antenna, what have can also seal insect and microorganism feed and excretory organs, force its disconnected oxygen apnea or jejunitas, or fix its activity and death.Through tens to up to a hundred times screenings, the inventor finds a kind of active water insoluble particulate colloidal compositions with above-mentioned characteristic, and as plant protection product, result of use is fairly obvious.
The present invention is achieved in that this plant protection product comprises following raw material, and its composition and weight content are:
Polyvinyl alcohol 2-20%
Water-soluble silicate 2-20%
Surfactant 1-10%
Polyvinylpyrrolidone 0.5-3%
Water surplus
Above-mentioned polyvinyl alcohol is general commercially available industrial chemicals, the product of also available vinyl acetate oxidation polymerization; Water-soluble silicate is sodium silicate NaSiO
3(waterglass), silicon potash fertilizer K
2SiO
3, Na
2Si
2O
5, Na
4SiO
4Deng; Surfactant is neopelex, calcium dodecyl benzene sulfonate, dodecyl phenenyl sulfate, alkylaryl APEO, alkylaryl formaldehyde resin polyoxy diene ether, polyoxyethylene alkylphenol ether etc., the effect of surfactant is to increase water-soluble, the plate-out ability of composition and impregnability, and plays the effect of getting along swimmingly with each other during with other missible oil class mixed pesticide.
The preparation method of this plant protection product uses earlier hot water dissolving's polyvinyl alcohol; then water-soluble silicate and polyvinylpyrrolidone are added; with merging together behind the suitable quantity of water dissolving surfactant; the water that adds capacity; mix, bottling gets final product, and this product can be placed 2-3 at normal temperatures and never degenerate; if small amount of precipitate is arranged, shake gently before the use and can revert to colloidal sol.
Add water 100-500 with this composition and doubly spray on the plant that insect is arranged, insect promptly is closed death by suffocation in 5-15 minute, if be sprayed on insect larvae or ovum, lethality also can reach more than 90%, and some insect even 3-5 minute can be dead.
Be mixed with this product and other agricultural chemicals such as chlorophos, furans pellet, Rogor, dimehypo, the young urea that goes out, chrysanthemum ester class etc., the agricultural chemicals usage amount can reduce 50%, and kill pests is rapid, agricultural chemicals availability height, most of insect is dead in 5-15 minute, minority because exposed to pesticides, in 24 hours, also can almost become extinct.
This product is nontoxic to people and animals, and is harmless, noresidue, and,, press the GB15670-1995 code test with the Wistar big white mouse of body weight 179-200g through the check of provincial health and epidemic prevention station, 1000,2150,4640,4 dosage groups of 10000mg/kg if, every group of 10 rats, male and female half and half.Irritating the stomach amount is the 1.0mg/100g body weight, observes 14 days, and obvious poisoning symptom does not all appear in each dosage treated animal as a result, and each group does not all have animal dead, thus said composition to the footpath mouth LD50 of rat greater than 10000mg/kg, genus low toxicity level material.
This product is used by Guangxi university and insect research institute 6-7 day in 1999 cowpea red spider, bean aphid, several insects of litchi stinkbug killed test: test method and result are as follows:
1. for the examination insect: cowpea red spider, bean aphid, litchi stinkbug.
2. test method: gather for the examination insect from the field and to return indoor the test.This composition is diluted to 3 concentration with clear water, and every concentration is 1 processing, and 3 repetitions are established in each processing.With hand steered sprayer dilute liquid medicine evenly is sprayed on the polypide, other establishes comparing of spray clear water.24h, 72h investigation insect death condition behind the medicine.
The indoor harmacological effect (Nanning, 1999.07) of table 1 pair cowpea red spider
| Handle (extension rate) | Repeat | For examination mite number | The dead mite of 24h is counted lethality (%) behind the medicine | For examination mite ovum number | The dead ovum number of 72h kills ovum effect (%) behind the medicine |
| 150 | 1 2 3 ∑ | 37 29 21 87 | 37 100 29 100 21 100 87 100 | 19 21 17 57 | 19 100 21 100 17 100 57 100 |
| 200 | 1 2 3 ∑ | 28 31 33 92 | 28 100 31 100 33 100 92 100 | 23 18 23 64 | 21 91.30 14 77.78 18 78.26 53 82.45 |
| 300 | 1 2 3 ∑ | 32 25 21 78 | 27 88.37 22 88.00 20 95.24 69 89.20 | 25 20 19 64 | 15 60.00 11 55.00 9 47.37 35 54.12 |
| CK | 1 2 3 ∑ | 25 32 34 91 | 0 0 0 0 0 0 0 0 | 19 23 29 71 | 0 0 0 0 0 0 0 0 |
Table 2 pair bean aphid indoor harmacological effect measurement result (Nanning, 1999.07)
| Handle (extension rate) | Repeat | For the examination borer population | The dead borer population lethality of 24h (%) behind the medicine |
| 150 | 1 2 3 ∑ | 32 29 38 99 | 32 100 29 100 38 100 99 100 |
| 250 | 1 2 3 ∑ | 41 34 31 106 | 40 97.56 34 100 31 100 105 99.19 |
| 300 | 1 2 3 ∑ | 43 38 33 114 | 42 97.96 35 92.11 30 90.91 107 93.59 |
| CK | 1 2 3 ∑ | 27 31 35 93 | 0 0 0 0 0 0 0 0 |
Table 3 pair litchi stinkbug nymph indoor harmacological effect measurement result (Nanning, 1999.07)
| Handle (extension rate) | Repeat | For the examination borer population | The dead borer population lethality of 24h (%) behind the medicine |
| 150 | 1 2 3 ∑ | 23 20 21 64 | 23 100 20 100 21 100 64 100 |
| 250 | 1 2 3 ∑ | 20 19 23 62 | 18 90.00 16 84.00 18 78.26 52 84.09 |
| 350 | 1 2 3 ∑ | 19 22 24 65 | 7 36.84 9 40.91 10 41.67 26 39.81 |
| CK | 1 2 3 ∑ | 20 21 24 65 | 0 0 0 0 0 0 0 0 |
3. result of the test
If the one-tenth of cowpea spider mite, is diluted 24h lethality 100% after 150 times, the 200 times sprays, and it is 82.45-100% (seeing Table 1) that 72h kills the ovum effect: to bean aphid, dilute 300 times, the 24h lethality reaches 93.59% (seeing Table 2) behind the medicine; To litchi stinkbug nymph, dilute 250 times, 24h lethality average out to 84.09% (seeing table 3 for details) behind the medicine.
4. conclusion
Doubly prevent and treat two spotted spider mite, bean aphid, litchi stinkbug nymph with present composition dilution 100-300 and all obtain good result.This composition has characteristics such as good water solubility, plate-out ability is strong, film forming is rapid, and its mode of action to insect mainly is that soup is sprayed onto polypide and goes up the back and form glued membrane rapidly with insect pore and respiratory tract sealing, and causing is choked to death dies.This composition is used for pest control, and not seeing as yet at home has report.According to the characteristic that said composition had, may control action be arranged to various pests and some disease, we are carrying out further experimental study.
Kill in the process of plant insect at this composition of use, the inventor also observes, after doubly spraying plant stem-leaf, water 100-500 not only crops are not had any adverse effect by adding, on the contrary rapidly than the control group growth, increase output, separately plant is carried out spraying test through the present invention, greengrocery can increase output 10-15%, corn, soybean can increase output 5-10%, fruit also can increase output about 10%, and the inventor analyzes its reason, may be surfactant and polyvinyl alcohol, silicate, after being mixed, form a kind of conditioning agent, make plant surface increase active function, promote that photosynthesis has certain effect, and sodium silicate, silicon potash fertilizer, dodecyl sodium sulfonate calcium etc. has some to the nutritious ingredients substance of plant, can promote plant growing.If add necessary trace element of nitrogen phosphorus potassium and plant such as iron, copper, zinc, calcium, manganese, plant growing and effect of increasing production are more obvious.
The present invention and existing agricultural chemicals and foliage fertilizer, plant growth regulator are compared, and its outstanding substantive distinguishing features and progress are:
1. this composition is a kind of low toxicity active particulate colloid type material that is different from general agricultural chemicals, has good water solubility, plate-out ability is strong, characteristics such as film forming is rapid, soup is sprayed onto insect can be rapidly with its valve and respiratory tract sealing on one's body, causing is choked to death dies, and this is a kind of completely new concept, is that present agricultural chemicals was not reported.
Can with Multiple Pesticides or foliage fertilizer, plant growth regulator assembly, agricultural chemicals can reduce consumption 50-30%, but the deinsectization effect can strengthen, and do not develop immunity to drugs, and is mixed with foliage fertilizer, can increase crop yield.
3. cost is low, and preparation method is simple.
4. to people and animals' no side effects, harmless, free from environmental pollution to frog, birds.
Below be embodiments of the invention:
Embodiment one, get 5 kilograms of polyvinyl alcohol, with 10 kilograms 80 ℃ hot water dissolving, and after getting 2 kilograms of usefulness 2 kg of water dissolvings of dodecyl sodium sulfonate calcium, get 15 kilograms of sodium silicate, 1 kilogram of polyvinylpyrrolidone again, total material mixes, add water to 100 kilograms, stir, can obtain this product water alkene of product (this product called after " day sieve evil spirit water ") and release 200 times, be sprayed on plant leaf surface, can kill aphid, vegetables mythimna separata and mite class, swallowtail butterfly, poison moth etc.
Embodiment two, 15 kilograms of polyvinyl alcohol, with 20 kilograms of 70 ℃ of hot water dissolvings, 3 kilograms of lauryl sodium sulfate add 3 kilograms of dissolvings of water, get 10 kilograms of sodium silicate again, the whole mixings of several solns add water to 100 kilograms, can obtain product, with 500 times of this product dilutions, can be used as insecticide or plant growth regulator sprays on corps leaf surface.
Embodiment three, get 10 kilograms of polyvinyl alcohol, add 30 kilograms of dissolvings of 60 ℃ of hot water, 5 kilograms of neopelexes dissolve with 10 kg of water, and add 4 kilograms of silicon potash fertilizers, 3 kilograms of polyvinylpyrrolidones, add water to 100 kilograms, mix, 250 times of dilute with waters, can be used as insecticide, also can be mixed into agricultural chemicals and use with Rogor, chlorophos, chlorine cyanogen nitrogen ester etc.
Embodiment four, 3 kilograms of polyvinyl alcohol, 3 kilograms of alkylaryl APEOs, after dissolving with 90 ℃ of hot water, add waterglass and mix for 8 kilograms, add 2 kilograms in urea again, 3 kilograms of potassium dihydrogen phosphates, 0.5 kilogram in copper sulphate, 0.5 kilogram in potassium permanganate adds water to 100 kilograms, can be used as insectofungicide, spray in crops, can increase production about 10%.
Embodiment five, 8 kilograms of polyvinyl alcohol, 2 kilograms of polyoxyethylene alkylphenol ethers, add 20 kilograms of 55 ℃ of hot water dissolvings after, add Na
4SiO
42 kilograms, 1 kilogram of polyvinylpyrrolidone adds 3 kilograms of desinsection lists again, adds water to 100 kilograms, mixes, and can kill insects such as cabbage caterpillar, aphid, paddy stem borer, oryza chinensis.
Claims (4)
1, a kind of low toxicity active colloidal plant protective agent, it is characterized in that it comprises contains polyvinyl alcohol, water-soluble silicate, surfactant, polyvinylpyrrolidone, and the composition and the weight content of its raw material are as follows:
Polyvinyl alcohol 2-20%
Water-soluble silicate 2-20%
Surfactant 1-10%
Polyvinylpyrrolidone 0.5-3%
Water surplus.
2, low toxicity active colloidal plant protective agent according to claim 1 is characterized in that water-soluble silicate is selected from sodium silicate or silicon potash fertilizer, Na
2SiO
5, Na
4SiO
4
3, low toxicity active colloidal plant protective agent according to claim 1 is characterized in that surfactant is selected from neopelex or calcium dodecyl benzene sulfonate, lauryl sodium sulfate, alkylaryl APEO, alkylaryl formaldehyde resin APEO, polyoxyethylene alkylphenol ether.
4, a kind of production method of low toxicity active colloidal plant protective agent as claimed in claim 1; it is characterized in that earlier polyvinyl alcohol being used the hot water dissolving; mix with surfactant, water-soluble silicate, polyvinylpyrrolidone again, add enough water, obtain product after stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB99120025XA CN1147228C (en) | 1999-10-27 | 1999-10-27 | Low toxicity active colloidal plant protective agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB99120025XA CN1147228C (en) | 1999-10-27 | 1999-10-27 | Low toxicity active colloidal plant protective agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1248400A CN1248400A (en) | 2000-03-29 |
| CN1147228C true CN1147228C (en) | 2004-04-28 |
Family
ID=5281306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB99120025XA Expired - Fee Related CN1147228C (en) | 1999-10-27 | 1999-10-27 | Low toxicity active colloidal plant protective agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1147228C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9226496B2 (en) | 2010-11-29 | 2016-01-05 | Institute of Medicinal Plant Development The Chinese Academy of Medical Sciences | Biomimetic adhesive and preparation method and application thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100482071C (en) * | 2007-09-21 | 2009-04-29 | 徐常青 | Method for preventing and controlling plant diseases and pests by utilizing bionics principle |
| CN102070961B (en) * | 2010-11-29 | 2013-01-02 | 中国医学科学院药用植物研究所 | Method for reducing surface viscosity of bionic glue by using curing agents |
| CN102125052B (en) * | 2010-11-29 | 2014-01-15 | 中国医学科学院药用植物研究所 | Method for controlling plant diseases and insect pests by utilizing defoliant and bionic glue |
| CN103283721A (en) * | 2013-06-25 | 2013-09-11 | 白月超 | An agricultural polyvinyl alcohol film dissolved upon water and a production method thereof |
| CN109744253A (en) * | 2017-11-03 | 2019-05-14 | 中国医学科学院药用植物研究所 | Using the method and composition of physics mode pest control |
| CN110771625A (en) * | 2019-09-17 | 2020-02-11 | 江苏新南洋绿色科技有限公司 | Wettable agent formula for enhancing high-temperature stress resistance of crops |
-
1999
- 1999-10-27 CN CNB99120025XA patent/CN1147228C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9226496B2 (en) | 2010-11-29 | 2016-01-05 | Institute of Medicinal Plant Development The Chinese Academy of Medical Sciences | Biomimetic adhesive and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1248400A (en) | 2000-03-29 |
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