US4265654A
Expired / Lapsed
US
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Herbicidal compositions
Assignee: Meiji Seika Kaisha Ltd
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Filing: 1978-12-20
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Granted: 1981-05-05
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Expires: 1998-12-20
Abstract
Abstract 2-Amino-4-methylphosphinobutyric acid or its metal salts, or acid-addition salts thereof are used as perennial weeds and brush controlling agents. The L-isomer is twice effective than the racemic acid. The perennial weeds and brush controlling effect may be obtained by foliar application over a prolonged period.
Inventors
- 👤 Tetsuo Takematsu
- 👤 Makoto Konnai
- 👤 Kunitaka Tachibana
- 👤 Takashi Tsuruoka
- 👤 Shigeharu Inouye
- 👤 Tetsuro Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:49
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/301; A; A01; A01N; A01N57/00; A01N57/18; A01N57/20
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A method for controlling perennial weeds which comprises applying heribicidal compositions containing a herbicidally effective amount of the L-isomer of a compound of the formula ##STR2## wherein X and Y are the same or different and each represents a hydrogen atom, a mono- or di-valent metal atom, a mono-, di- or tri-lower-alkylammonium, a mono-, di- or tri-ethanolammonium, or a mono-, di or tri-lower-alkenylammonium, and m and n represent valencies of X and Y, respectively or an acid-addition salt thereof to land selected from the group consisting of crop land, non-crop land, orchard, forest land and meadow.
Claim 2
Independent Claim
96 words
A method for controlling perennial weeds which comprises applying heribicidal compositions containing a herbicidally effective amount of the L-isomer of a compound of the formula ##STR2## wherein X and Y are the same or different and each represents a hydrogen atom, a mono- or di-valent metal atom, a mono-, di- or tri-lower-alkylammonium, a mono-, di- or tri-ethanolammonium, or a mono-, di or tri-lower-alkenylammonium, and m and n represent valencies of X and Y, respectively or an acid-addition salt thereof to land selected from the group consisting of crop land, non-crop land, orchard, forest land and meadow.
Claim 3
Dependent Claim
64 words
The method of claim 1, wherein the perennial weeds are selected from the group consisting of azumanezasa (Pleioblatus chino, Makino), miyakozasa (Sasa niponica Makino et Shibata), needle grass (Imperata cylindrica (L) Beauv), eulalia (Miscanthus sinensis Andress.), mizugayatsuri (Cyperus serotinus), wormwood (Artemisia princeps Pamp.), bitter dock, yabugarashi (Cayratia japonica Houtt.), kudzu (Pueraria thunbergiana Benth.), warunasubi (Solanum carolinense (L)), inuwarbai (Athyrium niponicum Hance) and hedge bindweed.
Claim 4
Dependent Claim
44 words
The method of claim 2, wherein the perennial weeds are selected from the group consisting of needle grass (Imperata cylindrica (L) Beauv.), eulalia (Miscanthus sinensis Andress.), mizugayatsuri (Cyperus serotinus), wormwood (Artemisia princeps Pamp), bitter dock, kudzu (Pueraria thunbergiana Benth.) and inuwarabi (Athyrium niponicum Hance).
Claim 5
Dependent Claim
29 words
The method of claim 1 wherein said herbicidal compositions are applied to Japanese cypress (Chamecyparis obtusa Eudl.) forest land to control perennial weeds without phytotoxicity to said Japanese cypress.
Claim 6
Dependent Claim
28 words
The method of claim 1 wherein said herbicidal compositions are applied to perennial weeds in autumn to control the emergence of new buds thereof during the following spring.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein X and Y are each independently selected from the group consisting of a hydrogen atom, sodium atom, potassium atom, isopropylammonium, n-butylammonium or ammonium.
Claim 8
Independent Claim
95 words
A method for controlling brush which comprises applying herbicidal compositions containing a herbicidally effective amount of the L-isomer of a compound of the formula ##STR3## wherein X and Y are the same or different and each represents a hydrogen atom, a mono- or divalent metal atom, a mono-, di- or tri-lower-alkylammonium, a mono-, di or tri-ethanolammonium, or a mono-, di- or tri-lower-alkenylammonium, and m and n represent valencies of X and Y, respectively or an acid-addition salt thereof to land selected from the group consisting of crop land, non-crop land, orchard, forest land and meadow.
Claim 9
Independent Claim
95 words
A method for controlling brush which comprises applying herbicidal compositions containing a herbicidally effective amount of the L-isomer of a compound of the formula ##STR3## wherein X and Y are the same or different and each represents a hydrogen atom, a mono- or divalent metal atom, a mono-, di- or tri-lower-alkylammonium, a mono-, di or tri-ethanolammonium, or a mono-, di- or tri-lower-alkenylammonium, and m and n represent valencies of X and Y, respectively or an acid-addition salt thereof to land selected from the group consisting of crop land, non-crop land, orchard, forest land and meadow.
Claim 10
Dependent Claim
49 words
The method of claim 7, wherein said brush is selected from the group consisting of kumaichigo, kiichigo (Rubus palmatsu Thunb. forma coptophyllus Makino), chestnut, Japanese bush cranberry, oak, Japanese pickly ash (Xanthoxylum piperitum DC.), lace shrub (Stephanandra incisa Zabel), yamazakura (Prumus donarium Sieb. var. spontanae Makino) and torch azalea.
Claim 11
Dependent Claim
28 words
The method of claim 7 wherein said herbicidal compositions are applied to Japanese cypress (Chamecyparis obtusa Eudl.) forest land to control brush without phytotoxicity to said Japanese cypress.
Claim 12
Dependent Claim
28 words
A method according to claim 7 wherein said herbicidal compositions are applied to brush in autumn to control the emergence of new buds thereof during the following spring.
Claim 13
Dependent Claim
29 words
The method of claim 7 wherein X and Y are each independently selected from the group consisting of a hydrogen atom, sodium atom, potassium atom, isopropylammonium, n-butylammonium or ammonium.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |