219 



on foreign shipments. Another difficulty is the interference of persons 

 having legislative authority, the powerful nursery interests of the 

 States being thoroughly organised to protect their own interests to the 

 hindrance of the successful prosecution of inspection workers. Inspec- 

 tion officials are requested to band themselves together and act as an 

 organisation for the purpose of seeming more stringent regulations 

 regarding the importations of plants from foreign countries and 

 greater uniformity in the treatment of the domestic problems within 

 the country. 



Sasscer (E. R.). Important Foreign Insect Pests collected on Imported 

 Nursery Stock in 1916.— JL Econ. Entom., Concord, N.H., x,no. 1, 

 February 1917, pp. 219-223. 



The follomng insects have been intercepted by State and Federal 

 inspection during the year 1916 : Eggs of the gipsy moth, Lymantria 

 {Porthetrm) dispar, L., on beech and apple stock from France, on 

 Thuja and Azalea from Japan, and on rose from Holland ; nests of 

 the brown- tail moth, Eiiproctis cknjsorrhoea, L., from France ; eggs 

 of the European tussock moth, Orgijia {Notolophus) antiqua, L., from 

 France and Holland ; pupae of a dagger moth, Apatela auricoma, F., 

 from France and Holland. Gracihria zachrysa, Meyr., has been 

 frequently reported on azaleas from Holland, Belgium and Japan. 

 Porthesia similis, Fuess., has been foimd on roses from Holland, and 

 the leopard moth, Zeuzera pyrina, L., on apple from France. Dead 

 larvae of the pink boll- worm, GeJechia gossypiella, Saund., were found 

 in samples of China cotton enclosed in glass trays exhibited at the 

 Panama-Pacific Exposition at San Francisco. This demonstrates 

 the possibility of introducing new and injurious pests in plant products 

 exhibited in this manner, in spite of every precaution having been 

 taken to safeguard the material by the California authorities. Some 

 200 tons of cotton seed from Lagos, West Africa, which was taken 

 as a prize cargo, was converted into fertilizer, owing to the fact that 

 the seed had at some time suffered slight infestation vdih. the pink 

 boll worm. The dock and ship that had borne the seed were then 

 thoroughly fumigated with hydrocyanic-acid gas. The mango weevil, 

 Cryptorrhynchus {Sternochetus) matigiferae, F., occurred in mango 

 seed from Siam and Japan, and the larvae of an apparently new species 

 of Conotrachelus were found in avocado seed from Guatemala. Primus 

 seed fi'om Japan had been injured by a species of Anthonomus closely 

 related to A. druparum, of which several dead adults and larvae were 

 taken. A pine prop used to support nursery stock was infested with 

 Myelophihis {Tomicus) piniperda, L. Cocoons of the sa^^'fly, Emphy- 

 tuscinctus, L;, were found on green ash sticks from England and 

 on Manetti stock from France. Tenthecoris bicolor, Scott, infested 

 orchids from Venezuela and Colombia ; Lachnus fasciatus, Burm., 

 was taken on Picea glauca and Lachnus hyalinus, Koch, on P. excelsa 

 from France. PsyJki buxi, L., occurred on boxwood from Holland, 

 and a whitefly, Aleurofhrixus sp., from Chile. 



A list is given of the more important Coccids taken on imported 

 stock with tables showing the amount of nursery stock offered for entry 

 from the principal European sources during the past four years, and 

 the number of species of insects reported by the inspectors from all 

 countries. 



(C363) c2 



