CN86101763B - Composite of agricultural chemical - Google Patents

Composite of agricultural chemical Download PDF

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Publication number
CN86101763B
CN86101763B CN86101763A CN86101763A CN86101763B CN 86101763 B CN86101763 B CN 86101763B CN 86101763 A CN86101763 A CN 86101763A CN 86101763 A CN86101763 A CN 86101763A CN 86101763 B CN86101763 B CN 86101763B
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CN
China
Prior art keywords
buprofezin
active carbon
parts
composition pesticide
regulation
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
Application number
CN86101763A
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Chinese (zh)
Other versions
CN86101763A (en
Inventor
中村荣三
栗山研
深田稔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Nohyaku Co Ltd
Original Assignee
Nihon Nohyaku Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nihon Nohyaku Co Ltd filed Critical Nihon Nohyaku Co Ltd
Publication of CN86101763A publication Critical patent/CN86101763A/en
Publication of CN86101763B publication Critical patent/CN86101763B/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/22—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing ingredients stabilising the active ingredients
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/88—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

A pesticidal composition comprises an insecticidally effective amount of 2-tert-butylimino3-isopropyl-5- phenyl-3,4,5,6-tetrahydro-2H-1,3,5-thiadiazin-4-one (Buprofezin) and active carbon in amount sufficient to prolong the lasting effects of the active ingredient. Insects and the like may be controlled by applying said composition to their habitat.

Description

A kind of composition pesticide
The present invention relates to a kind of 2-tertiary butyl imino group-3-isopropyl-5-phenyl-3 by insecticidal effective dose, 4,5,6-tetrahydrochysene-2H-1,3,5-thiadiazine-4-ketone [to call Buprofezin (Buprofezin) in the following text] and being enough to prolongs the composition pesticide that active carbon that this active ingredient holds effect is formed.
Simultaneously, the present invention relates to use the method for said composition in controlling object perch place pest control.
Disclose 53 as Japan Patent, described in 206/80 and 31,603/82 grades, Buprofezin is a kind of good insecticide, for various pests, lantern fly section insect for example, brown plant-hopper, small brown rice planthopper, white-backed planthopper etc., rice black-tailed leafhopper, and fruit vegetables, as the greenhouse whitefly of cucumber, eggplant, tomato, the tea green leafhopper of mulberry a red-spotted lizard of the long a red-spotted lizard of the winged euonymus of citrus, tealeaves etc. all have long-acting control efficiency.
People are known, and temperature is high more when dispenser or after the dispenser, and Buprofezin just evaporates manyly more.In this case, just can not keep the desirable effect of holding.
How present inventor's further investigation obtains can keep the composition results of lasting drug effect by stoping the Buprofezin evaporation under above-mentioned weather conditions, by add active carbon in Buprofezin, can obtain this composition, thereby prolong drug effect.
Disclose in 38,326/80 at Japan Patent and to disclose, by the Pesticidal combination that added Preparation of Activated Carbon, at this, active carbon is in order to the active ingredient of the known insecticide of absorption pyrethroid compound-a kind of.This preparation had both had quick-acting effects, because of being adsorbed in active carbon, above-mentioned pyrethroid compound has lasting effect again, and disclose 169 at Japan Patent, disclose in 601/ ' 81, by mixing a kind of active ingredient and active carbon, and one or more vegetable oil, and having made a kind of released granular agent, the solvability of this active ingredient in 25 ℃ of water is 5ppm.This formulation also is can adsorb this active ingredient with active carbon, and the technological concept that discharges gradually then is for the basis, and the rate of release of active ingredient can obtain to hold the quantity of imitating the active carbon that adds and regulates by being controlled to be.
The invention provides a kind of by using active carbon, the volatile composition pesticide of adjusting active ingredient after dispenser.At this, active carbon is controlled the volatile auxiliary agent of active ingredient as an energy again both as carrier after dispenser.Active carbon is volatile by control it in the volatilized active ingredient of surface, area absorption of using this composition.
The present invention also provides one in the insect that is prevented and treated or insect and fungi perch place, uses above-mentioned composition, adds thinner or does not add thinner, the method for pest control and fungi.
Yet, technological concept of the present invention and former different described in the document.It is based on such result of study: not only can prevent the loss of active ingredient Buprofezin, and as might be expected, even at high temperature, obtain to hold effect by the release of regulating active ingredient.Under high-temperature condition, Buprofezin is easily volatilization, be administered to plant corpus everywhere after, active ingredient promptly constantly evaporates from the medicine grain.Use the technology of the present invention and can absorb these volatilized active ingredient; And under normal circumstances, promptly under the situation of relative low temperature, active carbon as a part or a kind of substituent of inorganic filler, does not utilize active carbon to go directly to absorb active ingredient only as an inert carrier.
When selecting any Buprofezin pulvis of the present invention, wetting powder, dried flowable, suspending agent, fine granule and mobile concentrating agents for use, wherein all contain active carbon, it is as the part of filler, or the substituent of filler, with the volatilization loss of the Buprofezin that prevents from after dispenser, to cause owing to temperature condition.
The quantity of the used active carbon preferably Buprofezin of 1 part of weight is equipped with the active carbon of 0.2～10 part of weight.
Operable in the present invention active carbon comprises active carbon through the fortune windmillpalm sheath-fibre of steam or zinc chloride activation, charcoal, sawdust carbon, bone black etc.The size of activated carbon granule is selected according to instructions for use.
Active carbon can use separately, also can use with other inorganic filler.Inorganic filler comprises clay, talcum, calcium carbonate, diatomite, gypsum, bentonite, acid clay, hydrated SiO 2, calcium silicates etc., and filler of the present invention is not limited to above-mentioned filler.
The present invention can contain the active ingredient outside a kind of Buprofezin at least, and they can be chosen from commercially available insecticide and/or bactericide.
These insecticides and bactericide comprise carbamate insecticide, kill prestige (osfencarb), sevin Meobal, Cosban etc. as Mobucin, meta-tolyl-N-methylcarbamate (MTMC), evil; The organophosphorus ester insecticides is as basudin, orthene, nuvacron, methyl Chlorpyrifos, Folithion, pyridaphenthione, first thiophene sulphur phosphorus, phenthoate dimephenthoate cidial etc., synthetic pyrethroid insecticide is as Belmark, decis etc. and Padan, thiocyclam etc.
Bactericide comprises Isoprothiolane, Rabcide, tpn, iprobenfos, Hinosan, blasticidin-S, captan, difoltan, topsin and benomyl etc.
This composition can be processed into pulvis, wetting powder, graininess wetting powder, suspending agent, drift pulvis and mobile concentrating agents etc. according to the conventional method.
The present invention can further be illustrated by following " example " and " test examples ", but is not limited thereto.Unless add explanation in addition, below all umbers all refer to weight.
Example 1
25.0 parts of Buprofezins
NPE100(polyoxyethylene groups nonylplenyl ether) 0.5 part
2.0 parts of sodium lauryl sulfates
3.0 parts of sodium lignin sulfonates
25.0 parts of active carbon powders
44.5 parts of clays
Thoroughly mixed above-mentioned material, and grind and make wetting powder.
Example 2
5.0 parts of Buprofezins
25.0 parts of basudin
2.5 parts of polyoxyethylene groups nonylplenyl ethers
Ammonium sulfate
4.0 parts of calcium lignosulfonates
25.0 parts of hydrated SiO 2s
(Carplex#1120 is made by Shionogi Pharm.)
10.0 parts of active carbon powders
28.5 parts in calcium carbonate
After being added to basudin among the hydrated SiO 2 #1120, add other material, thoroughly mix, and grind and make wetting powder.
Example 3
5.0 parts of Buprofezins
Dislike and kill 25.0 parts of prestige (osfencarb)
2.5 parts of polyoxyethylene groups nonylplenyl ethers
Ammonium sulfate
4.0 parts of calcium lignosulfonates
10.0 parts of hydrated SiO 2s
(Carplex#80 is made by Shionogi)
10.0 parts of active carbon powders
43.5 parts of clays
Thoroughly mix above-mentioned material, and grind and make wetting powder.
Example 4
1.5 parts of Buprofezins
0.15 part of p isopropylbenzoic acid ester
3.0 parts of active carbon powders
30.0 parts in calcium carbonate
65.35 parts of clays
Thoroughly mix above-mentioned material, and grind and make pulvis.
Example 5
50.0 parts of Buprofezins
2.0 parts of polyoxyethylene groups nonylplenyl ethers
Ammonium sulfate
2.0 parts of polyoxyethylene groups styrene phenyl ethers
Ammonium sulfate
3.0 parts of calcium lignosulfonates
10.0 parts of corn starchs
20.0 parts of active carbons
13.0 parts in diatomite
(Radiolite#200 is made by Showa Kagaku)
Thoroughly mix Buprofezin, corn starch, diatomite (Radiolite) and active carbon; grind gains; add the surfactant that is dissolved in the water again; the gains of kneading; re-use a comminutor that has 0.7 millimeter sieve plate the materials processing of mediating is become particle, be drying to obtain the graininess wetting powder at 50 ℃.
Example 6
40.0 parts of Buprofezins
1.5 parts of NPE100
2.0 parts of polyoxyethylene groups styrene phenyl ethers (40% solution)
3.0 parts of polyoxyethylene groups nonylplenyl ethers-Formalin condensation product (40% solution)
0.5 part of silicone oil (KM-73 is made by Shinetsu)
5.0 parts of propane diols
1.5 parts of xanthans (Xanthane gum)
10.0 parts of active carbon powders
36.5 parts in water
Earlier surfactant, propane diols, xanthans and silicone oil are mixed and made into solution, add Buprofezin and active carbon again,, be milled into suspending agent by wet lapping machine (sand mill is made by Igarashi).
Example 7
20 parts of Buprofezins
40 parts in machine oil
15 parts of kerosene
5 parts of methyl naphthalenes
5 parts in polyoxyethylene groups oleyl alcohol ether
15 parts of active carbon powders
Buprofezin and active carbon are added in the solvent that contains surfactant, grind gains, make the mobile concentrating agents of oil type with the wet lapping machine.
Case of comparative examples 1
Replace active carbon with 25 parts of clays, and repeat the program of example 1, make wetting powder.
Case of comparative examples 2
Replace active carbon with 10 parts of calcium carbonate, and repeat the program of example 2, make wetting powder.
Case of comparative examples 3
Replace active carbon with 10 parts of clays, and repeat the program of example 3, make wetting powder.
Case of comparative examples 4
Replace active carbon with 3.0 parts of clays, and repeat the program of example 4, make pulvis.
Case of comparative examples 5
With 20.0 parts of diatomite (Radiolite) #200, replace active carbon, and repeat the program of example 5, make the graininess wetting powder.
Case of comparative examples 6
Replace active carbons with 3 parts of hydrosilicates (by the Carplex#80 of Shionogi manufacturing) and 7.0 parts of water, and repeat the program of example 6, make suspending agent.
Case of comparative examples 7
Replace active carbon with 15 parts of machine oil, and repeat the program of example 7, make the mobile concentrating agents of oil type.
Test examples 1 is about volatile test
Wetting powder, graininess wetting powder, suspending agent and the oil type of each example and the case of comparative examples concentrating agents that flows is diluted with water to the spray liquor that contains the 100ppm Buprofezin respectively, and gets 1 milliliter respectively evenly to be sprayed onto diameter be on 9 centimetres the Petri dish surface and drying.It is on 9 centimetres the Petri dish surface that pulvis also evenly spreads diameter.These culture dishes are placed in the insulating box, press preset time at interval, regularly take out culture dish, and remain in Buprofezin quantity on the culture dish with gas chromatography determination.Result of the test is listed in table 1.
Table 1
Residual Buprofezin % in the time of 40 ℃
0 2 4 6
Fate after the dispenser
Example 1 100 44.3 38.3 23.5
Example 2 100 57.0 42.6 32.0
Example 3 100 53.0 36.6 27.5
Example 4 100 60.3 53.4 40.3
Example 5 100 41.6 37.8 25.5
Example 6 100 79.0 58.3 50.2
Example 7 100 62.3 47.6 21.4
Case of comparative examples 1 100 22.0 17.2 4.0
Case of comparative examples 2 100 14.5 10.3 3.5
Case of comparative examples 3 100 15.0 12.2 4.0
Case of comparative examples 4 100 38.1 24.7 10.1
Case of comparative examples 5 100 30.1 24.9 13.7
Case of comparative examples 6 100 47.5 35.4 29.0
Case of comparative examples 7 100 25.3 19.6 8.2
Test examples 2 is about the test of residual effect
The mobile concentrating agents of wetting powder, graininess wetting powder, suspending agent and the oil type of each example and case of comparative examples is diluted with water to the spray liquor that contains the 200ppm Buprofezin respectively.Respectively get 50 milliliters of soups, spray with each with spray gun respectively and be planted on the rice plant in the basin of 18 centimetres of diameters, will be positioned in the greenhouse through the basin of this processing.Pulvis is then used the bell pot type duster of vacuum, evenly sprays on the rice plant of plantation in the same basin of size by the consumption of per 10 acres of 3 kilograms of medicaments, also is positioned in the greenhouse through the basin of this processing.Certain predetermined date after reaching dispenser after the dispenser just is with the brown plant-hopper of manually infecting 40 3 ages on every basin.Respectively at infecting meter death and the plant hopper number of surviving down in back 7 days.Lethality is calculated as follows accurately.
Survival rate (%) * 100 on survival rate (the %)/basin that is untreated on survival rate (%)-treated basin on lethality (the %)=basin that is untreated accurately
Result of the test is listed in table 2
Table 2
Instance number The accurate lethality % of brown plant-hopper
0 7 14 21 28
Fate after manually infecting
Example 1 100 100 100 91.1 88.8
Example 2 100 100 100 94.2 87.9
Example 3 100 100 100 95.5 88.8
Example 4 100 100 100 100 89.5
Example 5 100 100 100 94.2 91.1
Example 6 100 100 100 92.4 81.3
Example 7 100 100 100 100 85.5
Case of comparative examples 1 100 94.4 100 67.6 60.7
Case of comparative examples 2 100 100 100 55.3 45.4
Case of comparative examples 3 100 100 100 70.3 57.6
Case of comparative examples 4 100 100 94.2 91.1 57.6
Case of comparative examples 5 100 100 100 63.2 53.8
Case of comparative examples 6 100 100 100 61.5 44.4
Case of comparative examples 7 100 98.1 93.2 57.3 42.1

Claims (6)

1, a kind of Buprofezin composition pesticide, this composition pesticide comprise 2-tertiary butyl imino group-3-isopropyl-5-phenyl-3,4,5,6-tetrahydrochysene-2H-1,3,5-thiadiazine-4-ketone and active carbon, the usage ratio of active carbon is the 2-tertiary butyl imino group-3-isopropyl-5-phenyl-3 of per 1 minute weight, 4,5,6-tetrahydrochysene-2H-1,3,5-thiadiazine-4-ketone is with the active carbon of 0.2 to 10 part of weight.
2, the Buprofezin composition pesticide of claim 1 regulation can be processed into pulvis, wetting powder, suspending agent or mobile concentrating agents.
3, the Buprofezin composition pesticide of claim 1 regulation, wherein contain a kind of insecticide that Mobucin, meta-tolyl-N-methylcarbamate (MTMC), evil kill prestige, sevin, Meobal, Cosban, basudin, orthene, nuvacron, methyl Chlorpyrifos, Folithion, pyridaphenthione, first thiophene sulphur phosphorus, Belmark, decis, Padan and thiocyclam that is selected from least, per 1 part of heavy Buprofezin adds 0.1～10 part of selected insecticide of weight.
4, the Buprofezin composition pesticide of claim 1 regulation, wherein contain a kind of bactericide that is selected from Isoprothiolane, Rabcide, tpn, iprobenfos, Hinosan, blasticidin-S, captan, difoltan, topsin and benomyl at least, per 1 part of heavy Buprofezin adds 0.1～10 part of selected bactericide of weight.
5, the composition pesticide that a kind of method of pest control, this method comprise claim 1 regulation imposes on the place of insect generation with conventional sprayer such as duster, high-speed sprayer, knapsack type sprayer etc.
6, the method for a kind of pest control or insect and fungi, this method comprise the place that the composition pesticide of claim 3 regulation is imposed on insect or insect and fungi generation with conventional sprayer such as duster, high-speed sprayer, knapsack type sprayer etc.
CN86101763A 1985-02-25 1986-02-24 Composite of agricultural chemical Expired CN86101763B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP36115/85 1985-02-25
JP60036115A JPS61197503A (en) 1985-02-25 1985-02-25 Agricultural chemical composition

Publications (2)

Publication Number Publication Date
CN86101763A CN86101763A (en) 1986-09-24
CN86101763B true CN86101763B (en) 1988-10-19

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CN86101763A Expired CN86101763B (en) 1985-02-25 1986-02-24 Composite of agricultural chemical

Country Status (9)

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JP (1) JPS61197503A (en)
KR (1) KR920005587B1 (en)
CN (1) CN86101763B (en)
FR (1) FR2577759B1 (en)
GB (1) GB2172804B (en)
HK (1) HK51192A (en)
MY (1) MY101853A (en)
PH (1) PH23575A (en)
SG (1) SG8690G (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2522935B2 (en) * 1987-03-13 1996-08-07 日本農薬株式会社 Insecticidal composition with improved residual effect
FR2837066B1 (en) * 2002-03-14 2004-07-16 Michel Gentet PHYTOSANITARY COMPOSITION COMPRISING AN ACTIVE INGREDIENT AND A POWDER COMPOUND AND APPLICATION TO FIGHTING IN PARTICULAR AGAINST METCALFA PRUINOSA
CN101189967B (en) * 2007-05-18 2010-04-14 陆剑飞 Insecticidal composition
DE102009022893A1 (en) * 2009-05-27 2010-12-02 Bayer Technology Services Gmbh Powder formulations with adsorbent particles
CN102084863B (en) * 2011-03-01 2012-03-28 宁波市鄞州浩斯瑞普生物科技有限公司 Slow-release preparation of slow-release thiadiazine substances
CN102273472A (en) * 2011-08-16 2011-12-14 江苏东宝农药化工有限公司 Compounded pesticide composite containing methyl carbamate and buprofezin and preparation method thereof
CN102986697A (en) * 2012-12-24 2013-03-27 海利尔药业集团股份有限公司 Insecticide-acaricide composition containing buprofezin and bifenazate
CN103271073B (en) * 2013-06-18 2014-07-30 陕西农心作物科技有限公司 Insecticidal composition containing epoxy worm moiety and buprofezin
CN105472987B (en) * 2013-06-21 2017-08-04 巴斯夫欧洲公司 Suspension-concentrates composition comprising isothiazoline insecticide and activated carbon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1592043A (en) * 1977-06-09 1981-07-01 Nihon Nohyaku Co Ltd Tetrahydro-1,3,5-thiadiazin-4-one derivatives
JPS543083A (en) * 1977-06-09 1979-01-11 Nippon Nohyaku Co Ltd Tetrahydro-1,3,5-thiadiazin-4-ones and insecticide-miticide containing the same
JPS5538326A (en) * 1978-09-11 1980-03-17 Lion Corp Insecticidal composition

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Publication number Publication date
PH23575A (en) 1989-09-11
FR2577759A1 (en) 1986-08-29
SG8690G (en) 1991-01-18
FR2577759B1 (en) 1991-11-22
HK51192A (en) 1992-07-17
JPS61197503A (en) 1986-09-01
CN86101763A (en) 1986-09-24
GB2172804A (en) 1986-10-01
KR920005587B1 (en) 1992-07-09
KR860006207A (en) 1986-09-09
GB2172804B (en) 1988-06-15
GB8604517D0 (en) 1986-04-03
JPH0566362B2 (en) 1993-09-21
MY101853A (en) 1992-01-31

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