Meiji Seika Kaisha, Ltd.

Mitsubishi Petrochemical Company Limited

Kumiai Chemical Industry Co., Ltd.

Ihara Chemical Industry Co., Ltd.

Kuraray Co., Ltd.

Hodogaya Chemical Co., Ltd.

Toyo Soda Manufacturing Co., Ltd.

Utsunomiya University

Mitsubishi Chemical Industries Limited

Toho Chemical Industry Co., Ltd.

Meiji Selka Kaisha, Ltd.

Makoto Konnai

Tetsuo Takematsu

Takashi Tsuruoka

Shigeharu Inouye

Tetsuro Watanabe

Kunitaka Tachibana

Kaoru Ikeda

Hiroyoshi Omokawa

Takashi Nishida

Takeo Hosogai

Akira Nakanishi

Takayuki Isogawa

Makoto Takeda

Ikuo Kajiwara

Hideo Morinaka

Ikumi Urushibata

Nobuhiko Fuga

Kuniaki Shimizu

Kiyoshi Shugaya

Koshiro Kodama

Akira Suzuki

Kenji Tsuzuki

Seiichi Suzuki

Yuji Nonaka

Teruyuki Misumi

Takumi Yoshimura

Koichi Yoneyama

Kazuyuki Ushinohama

Takeshi Uwotani

Mitsuyuki Hashihama

Haruki Innami

Yunji Nonaka

An antagonism caused by the use of a herbicide for narrowleaf weeds together with a herbicide for broadleaf weeds is inhibited by using together with hydrophilic polymeric compound containing a quaternary ammonium salt and having 10,000 to 1,000,000 of molcular weight.

Antagonism inhibitors for herbicides, herbicide compositions and

A phenoxycetic acid derivative of the formula: ##STR1## wherein R is a hydroxyl group, an alkoxy group, a group of the formula OM wherein M is an alkali metal ion, an alkaline earth metal ion, a transition metal ion, an ammonium ion or an organic ammonium ion, or a group of the formula NHR.sub.1 wherein R.sub.1 is a hydrogen atom, a hydroxyl group, an amino group, an allyloxy group or an ethoxycarboxylmethoxy group.

Phenoxyacetic acid derivatives and plant growth regulating agents

A trifluoromethanesulfonanilide compound having the formula: ##STR1## wherein Y is a (1-cyano-2-propyl)cyclopropyl group or a (1-cyano)cyclopentyl group.

Trifluoromethanesulfonanilide compounds and herbicidal compositions

A trifluoromethanesulfonanilide compound having the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is a lower alkyl group, X is a halogen atom or a trifluoromethyl group, n is an integer of 0 to 2, and R.sup.1 and R.sup.2 may form, together with the adjacent carbon atom, a ring which may be substituted by a lower alkyl group.

A known antibiotic, SF-1293 substance and salts thereof have now been found to exhibit high herbicidal effects against a wide variety of herbaceous and woody plants, but they are non-phytotoxic particularly to a useful woody plant, Chamaecyparis obtusa. The herbicidal effects of these SF-1293 substances can be synergistically enhanced by applying in combination with herbicides selected from Linuron, Monolinuron, Monuron and Diuron each known as herbicides of urea derivative class.

Herbicidal compositions and herbicidal processes

Herbicides containing thiocarbamate derivatives represented by the general formula (I) as an active ingredient ##STR1## wherein X is 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, or substituted phenyl,

Herbicides

A known antibiotic, SF-1293 substance and salts thereof have now been found to exhibit high herbicidal effects against a wide variety of herbaceous and woody plants, but they are non-phytotoxic particularly to a useful woody plant, Chamaecyparis obtusa. The herbicidal effects of these SF-1293 substances can be noticeably enhanced by applying in combination with certain known herbicides or compounds having biological activities.

Herbicidal composition and herbicidal processes

2-Amino-4-(hydroxy)(methyl)phosphinoylbutyric acid, which earlier nomenclature referred to as 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 and maY be surprisingly enhanced by using the compound with a herbicide or synergist selected from the group consisting of choline salt of maleic hydrazide, a phenoxy series herbicide, a benzoic acid series herbicide, 2,3,6-trichlorophenylacetic acid or a salt thereof, (3,5,6-trichloro-2-pyridyl)oxyacetic acid or a salt thereof, N-phosphonomethylglycine or a salt thereof, ethylcarbamoylphosphoric acid or a salt thereof, 2-(1-allyloxyaminobutylidene)-5,5-dimethyl-4-methoxycarbonyl-cyclohexane-1 ,3-dione, 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea,3-amino-1,2,4-triazole, choline or a salt thereof, and diethylamine or a salt thereof.

Herbicidal compositions

Carbamate derivatives having the formula: ##STR1## wherein X represents an oxygen atom or a sulfur atom and Y represents a --CH-- group or a nitrogen atom; and herbicides utilizing the same.

Metamethoxy aryl carbamate derivatives and herbicides

There are provided novel substituted phenyl (thiono)carbamates capable of effectively controlling broad-leaved annual weeds and annual weeds belonging to the families Gramineae and Cyperaceae such as wild Echinochloa species, monochoria, toothcup and umbrella plant, herbicidal compositions containing these (thiono)carbamates as active ingredient and a method of controlling weeds using these (thiono)carbamates. The (thiono)carbamates are substantially nonphytotoxic to useful crop plants such as the paddy rice plant.

Substituted phenyl carbamates, herbicidal compositions containing the

Substituted phenyl (thiono)carbamates, herbicidal compositions

An N-(2,3-epoxypropylene)-N-aralkylsulfonamide of formula (I): ##STR1## wherein R.sup.1 is an alkyl group, a haloalkyl group, an aralkyl group or an aryl group which may be substituted, R.sup.2 and R.sup.3, independently of each other, are a hydrogen atom or an alkyl group, R.sup.4 and R.sup.4', independently of each other, are a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, R.sup.5, R.sup.6 and R.sup.7, independently of each other, are a hydrogen atom, an alkyl group, a haloalkyl group or an aryl group, and n is 0 or 1. The novel compounds have excellent herbicidal effect based on the physiological selectivity between rice plant and weeds, and have low phytotoxicity against rice plant.

N-(2,3-Epoxypropylene)-n-aralkylsulfonamide and herbicidal compositions

2-Amino-4-(hydroxy) (methyl)phosphinoylbutyric acid, which earlier nomenclature referred to as 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 and may be surprisingly enhanced by using the compound with a herbicide or synergist selected from the group consisting of choline salt of maleic hydrazide, a phenoxy series herbicide, a benzoic acid series herbicide, 2,3,6-trichlorophenylacetic acid or a salt thereof, (3,5,6-trichloro-2-pyridyl)oxyacetic acid or a salt thereof, N-phosphonomethylglycine or a salt thereof, ethylcarbamoylphosphoric acid or a salt thereof, 2-(1-allyloxyaminobutylidene)-5,5-dimethyl-4-methoxycarbonyl-cyclohexane-1 ,3-dione, 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea,3-amino-1,2,4-triazole, choline or a salt thereof, and diethylamine or a salt thereof.

Growing community of inventors

Utsunomiya, Japan

Makoto Konnai