Mitsubishi Gas Chemical Company, Inc.

Kumiai Chemical Industry Co., Ltd.

Nisshin Flour Milling Co., Ltd.

Morinaga Co. Ltd.

Yashima Chemical Industrial Co., Ltd.

Agro-kanesho Co., Ltd.

Akinori Suzuki

Akira Isogai

Masakazu Furushima

Akinori Tanaka

Toshio Kajita

Tetsuo Takematsu

Tomonori Shimazu

Osamu Tada

Kazuya Toda

Reisuke Kobayashi

Suong B Hyeon

Kazuo Furihata

Hideki Katoh

Shohei Sakuta

Mitsuo Ogura

Shouhei Sakuda

Makoto Ono

Takashi Suzuki

Haruo Seto

Shigeo Yoshinaka

Shinzo Someya

Mitsunori Oda

Akiko Tamano

Noriko Tamano

Yuko Ebe

Hruo Seto

Kazuko Tamano

Be H Suong

Takashi Kikkawa

Masuo Goto

Suong Be Hyeon

An aflatoxin contamination inhibitor, which contains an actibiotic Blasticidin A of the following chemical formula (1) or its salt, ##STR1## and at least one selected from a solid carrier, a liquid carrier and an emulsion dispersant; and a method for inhibiting aflatoxin contamination by spraying a chemical containing from 10 to 5,000 ppm of the Blasticidin A or its salt on plants.

Aflatoxin contamination inhibitor and aflatoxin contamination-inhibiting

The antibiotic aflastatin A or its salt and its production by Streptomyces sp. MRI 142, FERM BP-5841 is presented. Aflastatin A is incorporated into a pharmaceutical composition and is employed as an aflatoxin contamination inhibitor, antimicrobial agent, antifungal agent and antitumor agent.

Production aflastatin A from streptomyces sp., a pharmaceutical

New compound, designated as leucanicidin, is now provided and is useful as insecticide. Leucanicidin is fermentatively produced by a microorganism Streptomyces halstedii No. 3002-14, (FEKM BP-493).

Process for producing leucanicidin

A method of producing novel macrolides of the formula ##STR1## wherein R means ##STR2## in which n stands for an integer of 0-2 and m denotes an integer of 0 or 1, and R' denotes a methyl or ethyl group using Streptomyces hygroscopicus is described.

The production of KSB-1939 macrolides using STR eptomyces hygroscopicus

This invention relates to use of compounds of the formula ##STR1## wherein R represents a C.sub.2-5 alkyl, C.sub.2-5 alkenyl or C.sub.2-5 alkynyl group, and X represents a hydrogen atom, a C.sub.2-8 alkylcarbonyl, carbamoyl, benzoyl, chloromethylcarbonyl or methoxycarbonyl group, or --PO.sub.3 H.sub.2, and Y represents a chlorine or bromine atom in promoting the growth of plants.

Plant growth promotion

Described are KSB-1939 compounds represented by the following general formula (I): ##STR1## wherein R means ##STR2## in which n stands for an integer of 0-2 and m denotes an integer of 0 or 1, and R' denotes a methyl or ethyl group. A production process of the KSB-1939 compounds and pesticidal agents comprising, as an effective ingredient, one of the KSB-1939 compounds are also described.

Antibiotic KSB-1939 compounds as well as pesticidal agents containing

Use of agriculturally acceptable salts of compounds of the following formula for promoting the growth of plants. ##STR1## wherein Hal represents a chlorine, bromine or iodine atom, X.sub.1 represents a hydrogen or chlorine atom, or a methyl, trifluoromethyl, nitro, methoxy or t-butyl group, and X.sub.2 represents a hydrogen atom, or both X.sub.1 and X.sub.2 represent a chlorine atom or a methyl group; and Y represents a hydrogen atom, or a C.sub.2-6 alkylcarbonyl, benzoyl, N-phenylcarbamoyl, N-3,4-dichlorophenylcarbamoyl, chloropropylcarbonyl, methoxycarbonyl, carbamoyl or methacryloyl group.

A method of increasing the harvest of a crop which comprises applying an effective amount of taurine to the crop or its seeds, and a composition therefor.

Method and composition for increasing harvests of crops

A plant growth regulating composition comprising as an active ingredient a combination of

Plant growth regulating composition

New compound, designated as leucanicidin, is now provided and is useful as insecticide. Leucanicidin is fermentatively produced by a microorganism Streptomyces halstedii No. 3002-14 (identifiable as FERM BP-493).

Leucanicidin

A compound of the formula ##STR1## wherein Y represents a halogen atom, a lower alkyl group, a lower alkoxy group or a trifluoromethyl group and R represents a lower alkyl group. This compound can be produced by reacting a compound of the formula ##STR2## or a reactive derivative thereof with an aniline derivative of the formula ##STR3## and is useful as a herbicide.

Phenylacetanilide derivatives

A plant growth regulator comprising, as its active component, one or more compounds selected from the group consisting of [+]-hexylitaconic acid, and the dihydro derivative and lower alkyl monoesters thereof is effective for growth regulation of plants.

Plant growth regulator

A herbicidal composition containing as an active ingredient a compound of the formula ##STR1## wherein R.sub.0 represents a hydrogen atom or a lower alkyl group, and R.sub.1, R.sub.2 and R.sub.3 each represent a hydrogen or halogen atom, or a lower alkyl, lower alkoxy or lower alkenyloxy group, which is especially useful for application to aquatic rice paddies, and novel compounds of formula (I) wherein R.sub.0, R.sub.1, R.sub.2 and R.sub.3 have the same meanings as defined above, provided that R.sub.1, R.sub.2 and R.sub.3 do not represent hydrogen atom at the same time.

Growing community of inventors

Chiba, Japan

Akinori Suzuki