PEAR-B0RP:H (XErHOPTERYX IlUBPtlZONELLA, EAG). 7 



After they bore into the fruit, no remedy is accessible, (ixcept 

 (^arlion bisulphide, but this chemical being very expensive I only used 

 it on a dwarf tree, pour it with small brush into the hole, through which 

 insect entered ; it very soon kills the insect and no injury was done to 

 the fruit ; Benzole also has the same effect, but inferior, and little injures 

 the fruits. Now in our college garden piclcing of the injured fruits by 

 hands is the only means resorted to, as thej' are easily recognizable l)y 

 their l)lack holes and brown excrements. Lamp is of no use. 



Sapporo Agl. College, Entomological 



Labolatory, Sapporo. Jan. 5th. 1897. 



