Abstract: Novel carboxylic acid ester derivatives, of the formula (I): ##STR1## process for manufacturing said derivatives, insecticides and acaricides containing said derivatives, and a method for killing insects and acarina by treating therewith.

Abstract: Cyclopropane carboxylic acid ester derivatives and optical and geometrical isomers thereof expressed by the general formula: ##STR1## wherein R.sub.1 represents hydrogen atom or methyl group, R.sub.2 represents alkyl group, alkenyl group, haloalkyl group, haloalkenyl group having 1-6 carbon atoms and a group selected from the groups of the general formulae (II), (III) and (IV): ##STR2## in which n is an integer of 2-5, R.sub.4 represents methyl group, chlorine atom or methoxy group, and R.sub.3 represents a group selected from the groups of the general formulae (V), (VI), (VII), (VIII), (IX) and (X): ##STR3## in which X represents oxygen atom or vinylene group, R.sub.5 represents allyl group, propargyl group, benzyl group, phenoxy group or 2,2-dichlorovinyloxy group, R.sub.6 represents hydrogen atom, methyl group or halogen atom, R.sub.7 represents hydrogen atom, cyano group, ethynyl group or trifluoromethyl group and m is an integer of 1-2, R.sub.

Abstract: Isovaleric acid ester derivatives, process for producing thereof, and insecticides containing said derivatives of the general formula I: ##STR1## wherein A represents O, NH, or CH.sub.2,R.sub.1 represents, if A is O or NH, an alkyl, an alkenyl, a haloalkyl and a haloalkenyl radical with 2-6 carbon atoms, and a radical selected from those of the general formulae II, III, IV and V: ##STR2## in which n is an integer of 1-3, R.sub.3 represents hydrogen, methyl group or chlorine atom; andif A is CH.sub.2, R.sub.1 represents an alkyl, an alkenyl, a haloalkyl and a haloalkenyl radical with 1-5 carbon atoms, whileR.sub.1 --A represents a naphthyl group bonding to the main chain at the .beta.-position, andR.sub.2 represents hydrogen or a cyano group.

Abstract: The present invention relates to 5-ethoxymethylfurfurylester of chrysanthemumic acid, a new substituted furfurylester of chrysanthemumic acid which has improved insecticidal properties.

Abstract: The present invention relates to 5-phenylvinylfurfurylester of chrysanthemumic acid a new substituted furfurylester of chrysanthemumic acid which has improved insecticidal properties.

Abstract: The present invention relates to 5 acetyl furfurylester of chrysanthemumic acid, a new substituted furfurylesters of chrysanthemumic acid which have improved insecticidal properties.

Abstract: A cockroach trap constructed by providing side walls surrounding a base, forming several openings in each said side wall the edges of which lie at an angle of 30 to 60 degrees apart with the apex of said angle directed downwardly, each opening being designed to serve as an entrance for the cockroaches, and providing a layer of adhesive on the surface of said base spaced inwardly of the openings.

Abstract: The present invention relates to 3,4-dibromo-5-cyclopentadienyl furfurylester of chrysanthemumic acid a new substituted furfurylesters of chrysanthemumic acid which have improved insecticidal properties.