CN1221174C - Preparation for weeds and waterhayacinth in water bodies - Google Patents
Preparation for weeds and waterhayacinth in water bodies Download PDFInfo
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- CN1221174C CN1221174C CN 03104097 CN03104097A CN1221174C CN 1221174 C CN1221174 C CN 1221174C CN 03104097 CN03104097 CN 03104097 CN 03104097 A CN03104097 A CN 03104097A CN 1221174 C CN1221174 C CN 1221174C
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Abstract
The present invention provides a special composition for preventing and eliminating weed water hyacinths in water bodies, which comprises (a) glyphosate acid or salt thereof as an effective component to cobime with one or more than two kinds of the (b) sulfonylurea type herbicides. The glyphosate and the sulfonylurea type herbicides are compounded to effectively prevent and eliminate the weed water hyacinth in the water bodies, and the composition is safe to aquatic animals; in addition, the present invention provides a chemical method for preventing and eliminating the weed water hyacinth in the water bodies.
Description
Technical field
The present invention relates to a kind of chemical weed control composition, more particular words is to be the mixture that being exclusively used in of main active constituent prevented and kill off waters weeds weter hyacinth with glyphosate.
Background technology
Weter hyacinth is a kind of perennial water plants that originates in South America, belong to Pontederiaceae, the phoenix eyes Cymbidium, China introduced weter hyacinth in 1901 as flowers, five sixties also carried out large tracts of land as pig feed and promote, the later stage eighties is because the development of feed industry and the change of live pig feeding patterns, adopts water content height, water hyacinth fodder that edible composition is few again, and its input and output is not directly proportional.
Because weter hyacinth is alien species, almost do not have natural enemy in China, the fertility of adding it is surprising, can breed the new individuality that is equivalent to self several times even tens times in the extremely short time, a large amount of breeding growths often form single advantage group in a lot of waters of China.Simultaneously a large amount of weter hyacinths float on the water surface, have reduced the penetration capacity of light to water body, have a strong impact on the growth of benthon, destroyed local original ecological balance, the river course is obstructed, ship can't pass through smoothly, the farmland can not get irrigating timely, fisherman's fishing operation difficulty.Weter hyacinth in the Dian Chi of Yunnan Province of China, the waters such as Fuchunjiang River in Zhejiang overflows, and the condition of a disaster in waters such as the Changjiang river, Han River is also relatively more serious.
In order to control the calamity breeding of weter hyacinth, the normal at present method that adopts is artificial salvaging, natural enemy control and chemical control.Carry out biological and ecological methods to prevent plant disease, pests, and erosion from external introduction weter hyacinth natural enemy insect, need 3-5 just can take effect at least, and the biology that is difficult to determine to be introduced is only under test at present to having the influence of the ecological balance now; As chemical control, the weed killer herbicide that can select mainly contains:
1. paraquat (paraquat): structural formula is
Be the non-selective of a kind of contact killing type, can kill the blade face part of weter hyacinth fast, but, can only kill the part of contact medicament, can not eradicate because it is the weed killer herbicide of contact killing type except that agent.And the toxicity of paraquat is too big, ichthyotoxin LC
50Be 2.5-32mg/l (96h), be not suitable for preventing and kill off of waters weeds.
2. glyphosate (glyphosate): structural formula is
It is interior suction conduction nonselective herbicide, main by stem, leaf absorption, conduct under ground portion, suppress the synthetic of the interior enol third western pure acetonyl shikimene phosphate synthase of plant corpus, protein synthesis is interfered, cause weeds death, the glyphosate broad weed-killing spectrum is held concurrently and is removed annual weed and perennial perennial root weeds.But it is undesirable to prevent and kill off the weter hyacinth drug effect with the agent of glyphosate list, handle weter hyacinth as " weeds science " first phase calendar year 2001 36-37 page or leaf is disclosed with representative 41%bioforce aqua, the result is 30D behind the medicine, blade is all withered, but the part petiole is arranged still for green, and have new leaf sheath or young leaves to take out life, 20D has new root to grow behind the medicine, new root germination rate is higher, and the lasting period is short.
It is composite that application number is that 96118213 disclosed glyphosate of patent of invention and in metsulfuron-methyl or bensulfuron or the tribenuron-methyl any one carry out, and its objective is and not only can kill the weeds of being unearthed but also can control suppressing weed seed germination.But it is to be used for the nonirrigated farmland weeding, rather than is used for preventing and kill off of waters weeds.
Application number is the complex preparation that 97116899.7 patents of invention disclose in glyphosate and ethyl methyl, metsulfuron-methyl, chlorsulfuron, Bensulfuron-methyl, the triasulfuron one or more, but it is to be used for preventing and kill off of orchard, mulberry field, tea place, forest land, nursery weeds, does not relate to the particularly control of weter hyacinth of waters weeds.
Application number is 99810861 the disclosed a kind of Herbicidal combinations that is suitable for controlling the noxious plant in patience or resistant mutation build or the transgene rape crop of patent of invention, one of its scheme is the composite of glyphosate (salt) and ethametsulfuron, does not also relate to the control of weter hyacinth in its disclosed technical scheme.
" plant protection journal " 25 volume the 4th phase 373-374 page or leaf discloses paraquat, glyphosate, bensulfuron-methyl, four kinds of weed killer herbicides of the Lonster control effect to weter hyacinth; conclusion is that bensulfuron-methyl, Lonster control effect are far away from paraquat, glyphosate; and there is the problem of toxicity aspect in paraquat, prevents and kill off weter hyacinth with the agent of glyphosate list and does not reach gratifying effect again.
The quick breeding of malignant weed weter hyacinth has brought a series of problem, and still do not have at present a kind ofly to be proved to be safe biological control method or the Environmental compatibility better chemical is prevented and treated method, therefore the most frequently used method is to salvage by artificial at present, but artificial salvaging is wasted time and energy and is produced little effect, and China had dropped into a large amount of manpower and materials does not in recent years but still have to control the invasion of weter hyacinth to China's several big water systems in south.
The purpose of this invention is to provide a kind of effectively controlling water area weed method of water hyacinth.
Summary of the invention
Provided by the inventionly can effectively prevent and kill off waters weeds method of water hyacinth, mainly be with (a) glyphosate (glyphosate) acid or its salt and (b) one or more in the sulfonyl urea compound be combined as its effective ingredient.
Carry out above-mentioned active ingredient composite, overcome and adopted glyphosate single-activity component to be used for the deficiency that the waters weed control exists, obtained wonderful effect, particularly the preventive effect to weter hyacinth has reached more than 95%, can thoroughly kill the weter hyacinth plant, its stolon also can be killed, and no longer sprouts the individuality that makes new advances.Its preventive effect for weter hyacinth shows and is far longer than the preventive effect sum that adopts above-mentioned any compound can reach as the unitary agent of the unitary agent of active constituent and two kinds of same concentrations calculating.
First kind of active constituent of the present invention (a) is glyphosate, it can be glyphosate or its various forms of salt: as organic amine salt (as: isopropyl amine salt, triethylamine salt, methylamine salt, ethanolamine salt), ammonium salt, alkali metal salt (as: sodium salt, sylvite) and trimethyl sulfonium salt (careless sulphur phosphorus), be preferably ammonium salt, sodium salt.(a) weight content is 10-70%.
Second kind of active constituent of the present invention (b) is sulfonylurea herbicide, if it is used for preventing and kill off of weter hyacinth separately, then almost there is not effect, in 2 weeks of dispenser, only can suppress the growth of weter hyacinth, be difficult to thoroughly kill the plant, then can recover growth again again.But itself and glyphosate (salt) is composite or use simultaneously, then can show excellent preventive effect.It is considered herein that down that routine sulfonyl urea compound all can be used for realizing the present invention: metsulfuron-methyl (metsulfuron-methyl), chlorsulfuron (chlorsulfuron), tribenuron-methyl (tribenuron), Ethanetsulfuron (DPX-A7881), triasulfuron (triasulfuron), thiophene methyl (thifensulfuron), ether yellow grand (cinosulfuron), ethyl methyl (sulfometuron), chlorimuron (chlorimuron), benzyl ethyl methyl (bensulfuron), Fluoropyrimidinesulfuron (primisulfuron), pyrazosulfuron (pyrazosulfuron), nicosulfuron (nicosulfuron), fluorine amine yellow grand (DPX-66307), pyridine ethyl methyl (flazasulfuron), rimsulfuron (DPX-E9636), azoles ethyl methyl (NC330).Take all factors into consideration from Nong Ben and drug effect aspect and to be preferably chlorsulfuron and tribenuron-methyl.(b) weight content is 2-10%.
In order to increase the absorption of effective ingredient, it is essential adding surfactant, it is considered herein that the surfactant that is applicable to such active constituent is cycloaliphatic ring oxidative ethane and addition product or APG or amido silicon oil or Tea Saponin, can certainly be with the surfactant of other type, adopt commercially available auxiliary agent 0818 among the present invention, wherein contain APG and Tea Saponin.The weight content of surfactant is 6-20%.
Characteristics of sulfonyl urea compound are to decompose easily in sour environment, and glyphosate and salt thereof are acid:
| Material | Glyphosate | Ammonium glyphosate | Glyphosate sodium | Sulphosate | Glyphosate isopropyl amine salt |
| Saturated aqueous solution PH | 2 | 4.5 | 6 | 3 | 5 |
Therefore glyphosate is directly mixed with sulfonyl urea compound and is not that a feasible scheme, solution to this problem can be to add alkaline filler therein again, with regulation system PH to neutrality or alkalescent.This class filler commonly used can be sodium carbonate (potassium), sodium bicarbonate (potassium), sodium sulphite strong base-weak acid salts such as (potassium), is preferably sodium carbonate.Neutral salts such as not enough partly available sodium sulphate replenish.The weight content of filler is 1-80%.
The weed killer herbicide that is used for the waters weed control requires the toxicity of aquatic animal little, can not influence the existence of aquatic animal when killing weeds, and the toxicity of two kinds of active components that the present invention selects is all lower, as the LC of glyphosate to trout
50Be 1800mg/l, the grand LC50 to blue strontium and rainbow trout of green sulphur is greater than 250mg/l.The mixing of these two kinds of weed killer herbicides of evidence can not increase the toxicity to aquatic animals such as fish, shrimps.
It is considered herein that the composite of glyphosate and sulfonylurea herbicide can be aqua, soluble granule, soluble powder.Grand half life period of green sulphur is shorter, if be mixed with aqua then the shelf-life also shorter relatively, therefore be preferably and be mixed with the soluble solids preparation.
The present invention is used to prevent and kill off waters weeds weter hyacinth and has obtained extraordinary effect glyphosate and sulfonylurea herbicide (particularly green sulphur is grand) are composite, if adopt and glyphosate to be packed respectively with the agent of sulfonylurea herbicide list and mix before use or use simultaneously, and be used to prevent and treat weter hyacinth and be also included among the present invention.
Preparation provided by the invention is mainly used in prevents and kill off waters weeds weter hyacinth, adopts 130-800g/40-50kg water/thin spray-on process of mu times liquid evenly to impose on the target plant surface.
Embodiment
Is that embodiment illustrates embodiments of the present invention for convenient statement is existing with the soluble powder, but does not show that the present invention only can realize with the said preparation form.The present invention includes glyphosate and sulfonylurea herbicide is composite and be used for other formulation of the control of waters weeds such as weter hyacinth.
One or more active constituent, sodium carbonate, surfactant, the ammonium sulfate that concentration according to required preparation takes by weighing a certain amount of glyphosate or glyphosate salt solid, take from the sulfonylurea herbicide mixes, insufficient section complements to 100% with sodium sulphate, mix and grind, screening to be removing block, the packing back finished product.
Embodiment 1:
| Glyphosate | Green sulphur is grand | 0818 | Sodium carbonate | Ammonium sulfate | Sodium sulphate |
| 10 | 2 | 6 | 30 | 10 | 40 |
Embodiment 2:
| Glyphosate | Green sulphur is grand | 0818 | Sodium carbonate | Sodium sulphate |
| 20 | 4 | 8 | 60 | 8 |
Embodiment 3:
| Ammonium glyphosate | Green sulphur is grand | 0818 | Sodium carbonate | Sodium sulphate |
| 30 | 6 | 10 | 30 | 24 |
Embodiment 4:
| Ammonium glyphosate | Green sulphur is grand | Tribenuron-methyl | 0818 | Sodium carbonate | Sodium sulphate |
| 40 | 5 | 3 | 13 | 35 | 4 |
Embodiment 5:
| The glyphosate sulfonium salt | Green sulphur is grand | 0818 | Sodium carbonate | Sodium sulphate |
| 50 | 10 | 18 | 20 | 2 |
Embodiment 6:
| Glyphosate sodium | Green sulphur is grand | 0818 | Sodium carbonate | Sodium sulphate |
| 60 | 7 | 20 | 10 | 3 |
Embodiment 7:
| Glyphosate sodium | Green sulphur is grand | Tribenuron-methyl | 0818 | Sodium sulphate |
| 70 | 6 | 3 | 20 | 1 |
Embodiment 8:
Get agricultural prosperous (41% glyphosate isopropyl amine salt aqua) and the grand wetting powder mixing of 20% chlorine sulphur of chemical plant, city, 30g Liyang production that 250g Zhejiang Xinan Chemical Industry Group Co.Ltd produces.
Reach aqua contrast test of pesticide effectiveness result such as following table by embodiment 3 (36% careless chlorine soluble powder), embodiment 7 (79% careless chlorine soluble powder), embodiment 8 (mix preparation) with commercially available 41% farming:
| Handle | Repeat | The blade radix | Behind the medicine 7 days | Behind the medicine 14 days | Behind the medicine 20 days | |||||||
| (sheet) | Leaf | Root | Leaf | Root | New root (leaf) is sprouted | |||||||
| Bright leaf (sheet) | Withered rate (%) | Strain number (strain) | Withered rate (%) | Bright leaf (sheet) | Withered rate (%) | Strain number (strain) | Withered rate (%) | Strain number (strain) | Germination rate (%) | |||
| 36% careless chlorine soluble powder 350g/ mu | 1 | 242 | 27 | 89.01 | 10 | 100 | 6 | 97.63 | 10 | 100 | 1 | 10 |
| 2 | 219 | 11 | 95.17 | 10 | 100 | 0 | 100 | 10 | 100 | 0 | 0 | |
| 3 | 263 | 29 | 89.32 | 10 | 100 | 3 | 98.95 | 10 | 100 | 0 | 0 | |
| On average | 241.33 | 22.33 | 91.17 | 10.00 | 100 | 3 | 98.86 | 10 | 100 | 0.33 | 3.33 | |
| 79% careless chlorine soluble powder 130g/ mu | 1 | 274 | 30 | 89.05 | 10 | 100 | 6 | 97.91 | 10 | 100 | 0 | 0 |
| 2 | 252 | 25 | 90.07 | 9 | 90 | 11 | 95.91 | 10 | 100 | 1 | 10 | |
| 3 | 232 | 14 | 93.96 | 10 | 100 | 7 | 97.22 | 10 | 100 | 1 | 10 | |
| On average | 252.33 | 23 | 90.88 | 9.67 | 96.67 | 8 | 97.01 | 10 | 100 | 0.67 | 6.67 | |
| 41% farming reaches aqua 300ml/ mu | 1 | 273 | 203 | 26.76 | 3 | 30 | 201 | 29.59 | 3 | 30 | 7 | 70 |
| 2 | 241 | 175 | 30.12 | 5 | 50 | 152 | 41.11 | 5 | 50 | 6 | 60 | |
| 3 | 266 | 196 | 28.63 | 3 | 30 | 170 | 41.10 | 3 | 30 | 7 | 70 | |
| On average | 260.00 | 191.33 | 28.50 | 3.67 | 36.67 | 174.33 | 37.27 | 3.67 | 36.67 | 6.67 | 66.67 | |
| Mix preparation 280g/ mu | 1 | 275 | 30 | 89.09 | 9 | 90 | 7 | 97.45 | 10 | 100 | 1 | 10 |
| 2 | 251 | 25 | 90.04 | 9 | 90 | 13 | 94.82 | 10 | 100 | 2 | 20 | |
| 3 | 233 | 18 | 92.27 | 8 | 80 | 9 | 96.14 | 9 | 90 | 2 | 20 | |
| On average | 253.00 | 24.33 | 90.38 | 8.67 | 86.67 | 9.67 | 96.18 | 9.67 | 96.67 | 1.66 | 16.55 | |
| 20% chlorine sulphur swells wetting powder 20g/ mu | 1 | 216 | 190 | 13.37 | 2 | 20 | 178 | 21.20 | 2 | 20 | 10 | 100 |
| 2 | 264 | 227 | 17.25 | 1 | 10 | 211 | 25.37 | 2 | 20 | 9 | 90 | |
| 3 | 233 | 202 | 16.02 | 2 | 20 | 186 | 26.42 | 2 | 20 | 10 | 100 | |
| On average | 237.67 | 206.33 | 15.55 | 1.67 | 16.67 | 191.67 | 24.33 | 2 | 20.00 | 9.67 | 96.67 | |
| The blank clear water | 1 | 262 | 266 | -1.53 | 0 | 0 | 274 | -4.58 | 0 | 0 | 10 | 100 |
| 2 | 282 | 293 | -3.09 | 0 | 0 | 302 | 7.09 | 0 | 0 | 10 | 100 | |
| 3 | 247 | 255 | -3.24 | 0 | 0 | 268 | -8.50 | 0 | 0 | 10 | 100 | |
| On average | 263.67 | 271.33 | -2.89 | 0 | 0 | 281.33 | -6.72 | 0 | 0 | 10 | 100 |
Claims (7)
1. prevent and kill off waters weeds method of water hyacinth for one kind, it is characterized in that using a kind of swelling with glyphosate salt and green sulphur is the Herbicidal combinations of active ingredient, consists of:
The glyphosate salt weight content is 10-70%
It is 2-10% that green sulphur is solemnly measured content
The surfactant weight content is 6-20%
Filler weight content is 1-80%.
2. according to the described method of claim 1, described glyphosate salt is isopropyl amine salt, triethylamine salt, methylamine salt, ethanolamine salt, ammonium salt, sodium salt, sylvite and trimethyl sulfonium salt.
3. according to the described method of claim 2, described glyphosate salt is ammonium salt, sodium salt.
4. according to the described method of claim 1, described filler is sodium carbonate, potash, sodium bicarbonate, saleratus, sodium sulphite, potassium sulfite, ammonium sulfate, sodium sulphate.
5. according to the described method of claim 4, described filler is a sodium carbonate.
6. according to the described method of claim 1, described surfactant is cycloaliphatic ring oxidative ethane and addition product or APG or amido silicon oil or Tea Saponin.
7. method according to claim 1, wherein the ammonium glyphosate weight content is 30-50%, it is 5-8% that green sulphur is solemnly measured content, the sodium carbonate weight content is 10-40%, the sodium sulphate weight content is 10-20%, the ammonium sulfate weight content is 5-10%, and surfactant 0818 weight content is 8-12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03104097 CN1221174C (en) | 2003-02-24 | 2003-02-24 | Preparation for weeds and waterhayacinth in water bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03104097 CN1221174C (en) | 2003-02-24 | 2003-02-24 | Preparation for weeds and waterhayacinth in water bodies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1439266A CN1439266A (en) | 2003-09-03 |
| CN1221174C true CN1221174C (en) | 2005-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 03104097 Expired - Fee Related CN1221174C (en) | 2003-02-24 | 2003-02-24 | Preparation for weeds and waterhayacinth in water bodies |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316889C (en) * | 2004-05-13 | 2007-05-23 | 上海交通大学 | Common water hyacinths asexual propagation inhibiting agent |
| CN101317587B (en) * | 2007-06-05 | 2010-12-01 | 四川鑫穗生物科技有限公司 | Pesticide special for water hyacinth |
| CN101548685B (en) * | 2009-05-11 | 2012-07-25 | 浙江大学 | Herbicide and uses thereof |
| CN105367211A (en) * | 2014-08-30 | 2016-03-02 | 郑丹丹 | Herbicide |
| CN113678841B (en) * | 2021-08-11 | 2022-11-01 | 湖北工业大学 | Preparation method and application of compound pesticide for preventing and treating water hyacinth |
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2003
- 2003-02-24 CN CN 03104097 patent/CN1221174C/en not_active Expired - Fee Related
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