Hoffmann-la Roche Inc.

R. Maag Ag

Silvia Dorn

Albert Pfiffner

Rene Zurfluh

Ulrich Schwieter

The invention is concerned with insecticial compositions which contain as active substances (a) ethyl [2-(4-phenoxyphenoxy)ethyl]carbamate and (b) 2,3-isopropylidenedioxyphenyl methylcarbamate or 2-isopropoxyphenyl methylcarbamate or 2-(1,3-dioxolan-2-yl)phenyl methylcarbamate and, optionally, inert carrier material, and with the manufacture and the use of such compositions.

Insecticidal compositions

Insecticidal compositions, and methods for their use, which comprise a combination of O,O-diethyl-O-(2-isopropyl-4-methylpyrimid-6-yl)-thionophosphoric acid ester with a pyrethroid which synergizes the insecticidal activity of the thionophosphoric acid ester.

1,4-Bis-[(2-propynyloxy)-methyl] cyclohexane

Pesticidal 1,4-bis-[(-propynyloxy)-methyl]-benzene and

Insecticidal compositions, and methods for their use, which comprise a combination of 2,3-(isopropylidenedioxy)phenyl-methyl carbamate with 2-nitro-4-chlorophenyl 2-propynyl ether, a compound which synergizes the insecticidal activity of the carbamate.

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Dielsdorf, Switzerland

Silvia Dorn