- Method for exterminating termites
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A method for exterminating termites comprising using an entomopathogenic nematode together with an inset-growth regulator or a slow-acting insecticide, wherein insecticidal effects are reinforced compared with the cases using singly the entomopathogenic nematode and the insect-growth regulator or the slow-acting insecticide, respectively, and a bait station for exterminating termites that contains an entomopathogenic nematode with an insect-growth regulator or a slow-acting insecticide. According to the invention, emission of harmful chemicals to environment can be suppressed. The invention is nonpoisonous for human being and livestock, and is useful for indoor or outdoor extermination of termites.
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- Method for the preparation of insecticidal benzoylurea compounds
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The present invention provides an improved method for the preparation of an insecticidal benzoylurea having the structural formula I STR1
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- Use of benzoylureas for controlling house dust mites
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The use of compounds of the formula I STR1 in which R1 -R6, A, B und X have the meaning given in detail in the description, for controlling house dust mites. The miticide has a high miticidal effect against house dust mites of Tyrophagus, Dermatophagoides, Cheyletidae, etc. and is harmless to humans and beasts. It is effective not only in exterminating such house dust mites but also in preventing from them.
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