June, '17] LOVETT AND ROBINSON: ARSENIC AS AN INSECTICIDE 349 



(undetermined) 6 shipments; thrips (undetermined) 3 shipments; 

 red spider {Tetranychus himaculatus) 4 shipments; citrus white fly 

 {Dialeurodes citri) 2 shipments; moth larva (undetermined) 1 ship- 

 ment; tortoise shell beetle larvse on sweet potato (Cassida sp.) 1 

 shipment; crown gall {Bacterium tumejaciens) 3 shipments. 



One parcel post shipment contained citrus trees from a section 

 against which a quarantine is maintained and one contained currants 

 and gooseberries from the district covered by the Federal Horticultural 

 Board's request to nurseries dated March 22, 1916, to discontinue 

 shipments into certain Western territory owing to the danger of 

 transmitting white pine blister rust. ' 



I am particularly apprehensive of the clanger of the pink bollworm 

 of cotton becoming established in this country and afterwards spread 

 beyond hope of eradication by means of parcel post shipments of 

 cottonseed. I have reason to believe that a good many plant ship- 

 ments coming into the State of Arizona by parcel post have not been 

 held for inspection by the postmasters. The particular difficulty 

 in maintaining an efficient inspection service for parcel post shipments 

 of plants lies in the lack of personal responsibilitj^ of the postoffice 

 emploj^ees for the packages which pass through their hands. It has 

 been our experience that whenever any unnecessary delay in delivery 

 after inspection or failure to hold a plant shipment for inspection 

 comes to our attention, it is impossible to place the responsibility 

 among the postoffice employees at the offices concerned. Freight and 

 express shipments however are all handled in such a manner that it is 

 almost invariably possible to trace the blame for irregularities to the 

 proper sources. I believe that parcel post shipments of plants are 

 extremely dangerous to the fruit growing and farming interests of the 

 country and I hope that the time will soon come when all shipments of 

 plants by parcel post will be prohibited as has already been done with 

 respect to mail importations from foreign countries. 



The discussion following was general and nearly every member 

 present participated. 



Chairman A. W. Morrill: The next paper will be read by W. M. 

 Davidson. 



The Division of Entomology, North Carolina Department of Agricultm-e, has 

 entered into agreement with the Bureau of Plant Industry whereby it is planned to 

 employ a man, suitable to both parties, for one or more months' scouting work in the 

 white pine region of the state in search of the pine blister rust disease, — this to be 

 supplemented by special attention to five-leaved pines and Ribes in the nursery 

 inspection work the coming summer. The blister rust disease is not now known to 

 be present in North Carolina. 



