250 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 14 



A. L. Quaintance, Dr. J. T. Headlee, and Prof. J. G. Sanders, respec- 

 tively representing the cooperating agencies, form an advisory committee 

 for the project as a whole, the administration of which has been assigned 

 to the writer. Permanent headquarters in the form of an office, labora- 

 tory and storehouse are maintained at Riverton, N. J., in the heart of 

 the infested territory . 



The work has recently been reorganized along certain definite lines, as 

 follows: Quarantine enforcement, insecticidal investigations, parasite 

 investigations, bionomical investigations and control operations. 



Quarantine Enforcement 



There now exist three quarantine orders against the Japanese beetle, 

 quarantine No. 48 of the Federal Horticultural Board, restricting inter- 

 state movement of products, and quarantines imposed by the states 

 of New Jersey and Pennsylvania, restricting intra-state movement of 

 products within those states respectively. The necessary authority for 

 nforcing the local quarantines has been delegated to the Federal 

 authorities. The quarantine enforcement work is in charge of Mr. 

 C. W, Stockwt n, and since a paper on this subject will be presented dur- 

 ing the session, it is not necessary to discuss it further now. 



Insecticidal Investigations 



The investigations having to do with development of insecticides for 

 this insect are being carried on by Mr. B. R. Leach and his associates. 

 These investigations are being developed along the following lines: 



(1) To perfect an arsenical insecticide which will be a satisfactory 

 killing agent. As stated in the paper referred to previously,^ the stan- 

 dard arsenicals ordinarily used against leaf-eating insects act as repel- 

 lants rather than as killing agents in the case of the Japanese beetle. 

 Substantial progress has been made in the development of an arsenical 

 suitable for the purpose, and further extensive work has been planned 

 along this line. For this purpose, a fairly complete field chemical 

 laboratory has been equipped. 



(2) To devise methods of treating hailed earth infested with Japanese 

 beetle grubs. The quarantine regulations prohibit the shipment of 

 nursery stock requiring soil around the roots during shipment, except 

 where such stock and soil is known to be free of infestation. Such 



iDavis, J. J., 1920. 



