Abstract: Arylglycinamide derivatives represented by a general formula (1) ##STR1## (wherein Ar denotes a phenyl group which may have 1 to 3 substituents or naphthyl group which may have 1 to 3 substituents, R.sub.1 and R.sub.4 denote identically or differently hydrogen atoms or lower alkyl groups with 1 to 3 carbon atoms, R.sub.2 denotes a lower alkyl group with 1 to 6 carbon atoms, cycloalkyl group with 3 to 6 carbon atoms, lower alkyl group with 1 to 4 carbon atoms which may have a phenyl group which may have 1 to 3 substituents, norbornyl group, adamantyl group or phenyl group which may have 1 to 3 substituents, R.sub.3 denotes a hydrogen atom or lower alkyl group with 1 to 6 carbon atoms or it may form a ring constituting alkylene together with R.sub.2, R.sub.5 denotes a lower alkyl group with 1 to 6 carbon atoms or cycloalkyl group with 5 or 6 carbon atoms, R.sub.6 denotes a hydrogen atom or lower alkyl group with 1 to 6 carbon atoms or it may form a ring constituting alkylene together with R.sub.

Abstract: A device for exterminating pests having a cylinder filled with carbon dioxide in which (a) pesticide(s) is(are) dissolved, piping coupled to the cylinder, and a plurality of capillary nozzles affixed to the piping, and a method of exterminating pests employed this device. The capillary nozzles are designed such that, considering adjacent capillary nozzles, the ratio of the nozzle exit area of the capillary nozzle close to the cylinder to the nozzle exit area of the capillary nozzle remote from the cylinder is set between 1:1.3 and 1:1.8. As a result, numerous independent enclosed spaces can be sprayed with little labor and in a short time by means of a small number of devices.