Control agents for honey bee parasites and control method for honey bee parasites using them

摘要

A compound selected from a compound represented by the following Formula (Ia) and acid addition salts thereof ** Formula ** in which Ar represents a pyridyl group that can be substituted with a halogen atom, a hydroxyl group, a group C1 to C6 alkyl that can be substituted with a halogen atom, a C1 to C6 alkyloxy group that can be substituted with a halogen atom, a cyano group or a nitro group; or a pyrimidyl group that can be substituted with a halogen atom, a C1 to C4 alkyl group that can be substituted with a halogen atom, an alkyloxy group that can be substituted with a halogen atom, a hydroxyl group, a cyano group or a group nitro, Y represents a hydrogen atom, a halogen atom, a hydroxyl group, a C1 to C6 alkyl group that can be substituted with a halogen atom, a C1 to C6 alkyloxy group that can be substituted with a halogen atom, a group cyano or a nitro group, and R1 represents a C1 to C6 alkyl group that can be substituted with halogen, for use in the treatment for honey bees to control the parasitic pests of honey bees.