Abstract: An electric insecticidal apparatus comprising a vessel for storing insecticidal solution, which is oriented in a direction in use; a heating chamber in which the vessel is mounted, said heating chamber containing a heating element; a wick for drawing up the insecticidal solution in the vessel, said wick being provided in the vessel such that the insecticidal solution drawn up by the wick is heated and vaporized by the heating element; an inlet provided at a side of the heating chamber for inserting the vessel into the heating chamber, said vessel being laterally inserted into the heating chamber through the inlet by orienting the vessel in the proper direction; and a guide and holding means for guiding the wick to and holding the wick at a predetermined position at the time of insertion of the vessel into the heating chamber such that the wick confronts the heating element of the heating chamber at a predetermined distance from the heating element, which is provided in the heating chamber.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: An insecticidal aerosol formulation comprising a pressure-proof container equipped with a valve having a housing, button, stem and vapor tap, filled with a solution of an active ingredient in kerosenes having a boiling point of 180.degree.-260.degree. C. and a liquified petroleum gas as a propellant.

Abstract: An insecticidal composition containing an inert carrier and as active ingredients an insecticidally effective amount of a mixture comprising 2-allyl-3-methylcyclopento-2-ene-1-one-4-yl 2',2',3',3'-tetramethylcyclopropanecarboxylate or 2-propargyl-3-methylcyclopento-2-ene-1-one-4-yl 2',2',3',3'-tetramethylcyclopropanecarboxylate, and 3-phenoxybenzyl chrysanthemate, 5-benzyl-3-furylmethyl chrysanthemate or 3-phenoxybenzyl 2',2'-dimethyl-3'-(2",2"-dichlorovinyl)cyclopropane-1'-carboxylate, and N-(3,4,5,6-tetrahydrophthalimido)methyl chrysanthemate, which has synergistic lethal and knock-down effect on harmful insanitary insects as well as a synergistic flushing-out effect on cockroaches particularly as oil sprays, emulsifiable concentrates and aerosols.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: Novel alkynylcyclopropanecarboxylic acid esters represented by the formula, ##STR1## wherein R.sub.1 represents hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkyl, aryl, aryl C.sub.1 -C.sub.4 alkyl, furyl, substituted furyl, thienyl, substituted thienyl, furfuryl, substituted furfuryl, thenyl, substituted thenyl, cyclo C.sub.3 -C.sub.6 alkyl, substituted cyclo C.sub.3 -C.sub.6 alkyl, cyclo C.sub.3 -C.sub.6 alkenyl or substituted cyclo C.sub.3 -C.sub.6 alkenyl; R.sub.2 and R.sub.3 individually represent hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, aryl, aryl C.sub.1 -C.sub.4 alkyl or may form a carbon-carbon bond; or R.sub.1 and R.sub.

Abstract: Novel alkynyl esters of cyclopropanecarboxylic acid represented by the formula, ##STR1## wherein R.sub.1 represents hydrogen, lower alkyl having 1-4 carbon atoms, lower alkenyl having 2-4 carbon atoms, lower alkynyl having 2-4 carbon atoms, C.sub.1 -C.sub.2 alkoxy-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.2 alkylthio-C.sub.1 -C.sub.4 alkyl, furyl, thienyl, furfuryl, thenyl, cyclo-C.sub.3 -C.sub.6 alkyl, oxygen atom-containing cyclo-C.sub.3 -C.sub.6 alkyl, cyclo-C.sub.5 -C.sub.6 alkenyl, oxygen atom-containing cyclo-C.sub.4 -C.sub.6 alkenyl, halo-C.sub.2 -C.sub.4 alkenyl, phenyloxymethyl, phenylthiomethyl, cyclo-C.sub.5 -C.sub.6 alkenylmethyl, oxygen atom-containing cyclo-C.sub.4 -C.sub.6 alkenylmethyl, cyclo-C.sub.5 -C.sub.6 alkylmethyl, oxygen atom-containing cyclo-C.sub.4 -C.sub.6 alkylmethyl or ##STR2## IN WHICH X is halogen, nitro, cyano, methylenedioxy, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.2 alkoxy, dimethylamino, m is 0, 1, 2 or 3, n is 0, 1, 2 or 3 and each X may be different when n is 2 or 3; R.sub.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal compositions containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: A cyclopropanecarboxylic acid ester of the formula (I), ##STR1## wherein R.sub.1 is a hydrogen atom, methyl group or a fluorine, chlorine or bromine atom, R.sub.2 is a fluorine, chlorine or bromine atom, and each of R.sub.3 and R.sub.4 is independently a hydrogen atom, a C.sub.1 -C.sub.3 alkyl, C.sub.2 -C.sub.3 alkenyl or C.sub.2 -C.sub.3 alkynyl group, an alkyl- or halogen-substituted aryl, unsubstituted aryl group or an aralkyl group, which possesses various useful insecticidal and acaricidal activities and can be prepared by reacting an alcohol, halide or arylsulfonate compound of the formula (II), ##STR2## wherein R.sub.3 and R.sub.4 have the same meanings as defined above and A is a hydroxyl group, a halogen atom or an arylsulfoxy group, with a cyclopropanecarboxylic acid of the formula (III), ##STR3## wherein R.sub.1 and R.sub.2 have the same meanings as defined above, or its reactive derivative.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: A novel insecticidal composition in the form of fumigant which comprises, as an active ingredient, d-2-allyl-3-methyl-cyclopent-2-ene-1-one-4-yl d-trans-chrysanthemate consisting of d-allethrolone and d-trans-chrysanthemic acid, and an inert carrier, which has a rapid knock down effect and an effect to delay the recovery of injurious insects knocked down, and which is useful for sanitary, agricultural and horticultural purposes.

Abstract: Novel alkynylcyclopropanecarboxylic acid esters represented by the formula, ##STR1## wherein R.sub.1 represents hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkyl, aryl, aryl C.sub.1 -C.sub.4 alkyl, furyl, substituted furyl, thienyl, substituted thienyl, furfuryl, substituted furfuryl, thenyl, substituted thenyl, cyclo C.sub.3 -C.sub.6 alkyl, substituted cyclo C.sub.3 -C.sub.6 alkyl, cyclo C.sub.3 -C.sub.6 alkenyl or substituted cyclo C.sub.3 -C.sub.6 alkenyl; R.sub.2 and R.sub.3 individually represent hydrogen, halogen, lower alkyl having up to 5 carbon atoms, lower alkenyl having up to 5 carbon atoms, lower alkynyl having up to 5 carbon atoms, aryl, aryl C.sub.1 -C.sub.4 alkyl or may form a carbon-carbon bond; or R.sub.1 and R.sub.

Abstract: Substituted acetate compounds represented by the formula ##STR1## which are useful as pesticides and pesticidal composition containing the substituted acetate compounds as active ingredients, as well as processes for preparing the compounds and the compositions are disclosed.

Abstract: A new pyrethroidal pesticide containing as an active ingredient a pesticidally effective amount of novel cyclopropanecarboxylic acid esters represented by the formula, ##EQU1## wherein R is a hydrogen atom, a halogen atom, a methyl or a methoxy group, and R.sub.1 and R.sub.2 are hydrogen atom, methyl group or a halogen atom, which have a low toxicity to mammals, excellent pesticidal effect on injurious pests in cereal storage, agriculture and forestry and a wide range of uses for prevention of epidemics.

Abstract: An insecticidal composition and method containing a compound of the formula, ##EQU1## wherein R is hydrogen or methyl group, which is harmless to warm-blooded animals.

Abstract: An insecticidal composition containing as an active ingredient an insecticidally effective amount of 10 to 30 % by weight of (+)-cis- and 70 to 90 % by weight of (+)-trans-chrysanthemate of the formula ##EQU1## wherein R is ##SPC1##In which R.sub.1 is an allyl or propargyl group, R.sub.2 is a propargyl, benzyl or phenoxy group, R.sub.3 is a hydrogen atom or a methyl group, R.sub.4 is a hydrogen atom or an ethynyl group and Y is an oxygen atom or --CH=CH-- group; andAn insecticidal composition containing as an active ingredient an insecticidally effective amount of (a) at least one of above-mentioned (+)-cis,trans-chrysanthemates having said cis to trans ratio and (b) at least one of chrysanthemates prepared from a chrysanthemic acid having a cis to trans ratio different from that of the (+)-cis,trans-chrysanthemic acid moiety of the above formula (I) and an alcohol moiety of the above formula (I) having a structure different from that of the alcohol moiety of the (+)-cis,trans-chrysanthemates of above (a).

Abstract: A new cyclopropanecarboxylic acid ester represented by the formula, ##SPC1##Wherein R.sub.1 is alkyl having up to four carbon atoms, alkenyl having up to five carbon atoms, cycloalkenyl having up to six carbon atoms, alkenyl having up to five carbon atoms, benzyl, phenoxy or halogen; R.sub.2 and R.sub.3 are hydrogen, halogen or methyl; and any adjacent two of R.sub.1, R.sub.2 and R.sub.3 may combine to form polymethylene, which is useful as insecticides and acaricides having a strong insecticidal activity but a low toxicity to mammals, in agriculture, horticulture as well as public health.