1. A pesticidal composition comprising a carboxamide compound represented by the formula (I): [Chem. 1] kotoroyRpredstavlyaet a hydrogen atom or a methyl group, iRpredstavlyaet a methyl group, a difluoromethyl group or trifluoromethyl group, and one or more neonicotinoid compounds selected from the group (A) consisting of acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram, thiacloprid and tiametoksama.2. A pesticidal composition according to claim 1, wherein the weight ratio of the carboxamide compound to neonicotinoid compound (s) is from 0.01 / 1 to 4/1 carboxamide compound / neonicotinoid compound (I) .3. A pesticidal composition according to claim 1 or 2, wherein the neonicotinoid compound is klotianidinom.4. A method of controlling pests, which comprises the step of treating a plant or the soil where the plant grows with an effective amount of the carboxamide compound represented by the formula (I): [Chem. 2] in kotoroyRpredstavlyaet a hydrogen atom or a methyl group, iRpredstavlyaet a methyl group, a difluoromethyl group or trifluoromethyl group, and one or more neonicotinoid compounds selected from the group (A) consisting of acetamiprid, clothianidin, dinotefuran, imidacloprid, nitenpyram, thiacloprid and tiametoksama.5. A method for controlling pests according to claim 4, wherein the weight ratio of the carboxamide compound to neonicotinoid compound (s) is from 0.01 / 1 to 4/1 carboxamide compound / neonicotinoid compound (I) .6. A method for controlling pests according to claim 4 or 5, wherein the neonicotinoid compound is klotianidinom.7. A method for controlling pests according to claim 4 to1. Пестицидная композиция, включающая карбоксамидное соединение, представленное формулой (I):[Хим. 1]в которойR1 представляет собой водородный атом или метильную группу, иR2 представляет собой метильную группу, дифторметильную группу или трифторметильную группу,и одно или более неоникотиноидных соединений, выбранных из группы (А), состоящей из ацетамипри
