A Survey of Insect Pests Living in the Peanuts Confectionery and Chocolate Storehouse

Abstract

During the period from June 1968 to April 1969, macroscopic arthropods were isolated monthly from the dust and refuse collected by a vacuum cleaner at various places of the peanuts confectionery and chocolate storehouse at Hatano in Kanagawa Prefecture. Sixteen species including ten species of food injurious insects such as confused flour beetles (Tribolium confusum), flat grain beetles (Cryptolestes minutus), almond mothes (Ephestia cautella) saw-toothed grain beetles (Oryzaephilus surinamensis) and small-eyed flour beetles (Palorus ratzeburgi) were detected. They occurred in number in the seasons of summer to autumn and it was noticed that they have many chances of attacking confections or other sweets everywhere surveyed.