Nissan Chemical Industries Limited

Hiroshi Haruyama

Toshiyuki Umehara

Yasuo Kawamura

Tomoyuki Ogura

Michito Tagawa

Toshiro Miyake

Tatsuo Numata

Toshihiko Iizuka

Masao Kuwahara

Sachiko Yajima

Kiminori Hirata

Masaki Kudo

Takahiro Makabe

A method for protection of a plant from damage caused by an insect pest of the order Lepidoptera and Diptera is disclosed. An insect controlling agent having an active component of an insecticidal crystal toxin produced by Bacillus thuringiensis var. kurstaki No. 145 FERM BP-3905, No. 161 FERM BP-3906, and No. 116 FERM BP-3907 is used in the method for protection of a plant. The insecticidal crystal toxin has a set of molecular weights as determined by 10% SDS-polyacrylamide gel electrophoresis of 125,000 daltons and 60,000 daltons when produced by No. 145, 130,000 daltons and 60,000 daltons when produced by No. 161, and 130,000 daltons and 60,000 daltons when produced by No. 116.

Insect controlling agent from strains of Bacillus thuringiensis var.

A novel 3(2H)-pyradazinone derivative of the formula (I) ##STR1## wherein, R represents an alkyl group having 1 to 4 carbon atoms substituted by a cycloalkyl group having 3 to 8 carbon atoms, an alkyl group having 1 to 4 carbon atoms substituted by a phenyl group which may be substituted or an alkyl group having 1 to 4 carbon atoms substituted by a heterocyclic group, R' represents a hydrogen atom, a halogen atom, an alkoxy group having 1 to 4 carbon atoms or a hydroxyl group having 1 to 4 carbon atoms, J represents any of various organic radicals. There is also provided a process for preparing said derivatives. These derivatives are useful as active ingredients of insecticidal, acaricidal and/or nematicidal compositions for agricultural and horticultural uses as well as of expellent compositions for pests parasitic on animals.

Pyridazinone derivatives and compositions for controlling and/or

The present invention provides novel strains of Bacillus thuringiensis var. Kurstaki, No.145, No.116 and No.161. These strains produce an insecticidal crystal toxin which is useful as an active component in a insect pest-controlling agent.

Bacillus strain and insect pest controlling agent

A novel 3(2H)-pyridazinone derivative of the formula [I]: ##STR1## wherein, R represents an alkenyl group having 2 to 16 carbon atoms, an alkynyl group having 2 to 16 carbon atoms, an alkyl group having 3 to 8 carbon atoms substituted by an alkoxy group having 1 to 6 carbon atoms or G-Ra-;

3(2H)-pyridazinone compounds derivatives and compositions for

Growing community of inventors

Minamisaitama, Japan

Hiroshi Haruyama