22 



jaw is forced into the Lark, the other is securely fastened a little to one side, when, 

 with a powerful eli'ort, the first jaw is drawn through the bark toward the second. 

 This operation may be repeated till the branch is completely girdled. The sap is 

 carefully lapped up as the operation progresses, and if the branch does not die the 

 scars may be seen years afterward. 



BULLETIN No. 14, APRIL, 1889. 



The sugar beet, J. H. Shepard, M. S. (pp. 3-6). — Au account 

 of prelimiuary experiments with seven varieties of sugar beets to ascer- 

 tain if such beets are adapted to the soil and climate of Dakota. The 

 yields and sugar content were sufficiently encouraging to justify repeti- 

 tion of the experiments. 



DELAWARE. 



The Delavyare College Agricultural Experiment Station. 



Department of Dclau-are College. 

 Location: Newark. Director: Arthur T.Neale, Ph. D. 



BULLETIN No. 4, MAY, 1889. 



Injurious insects, identification and extermination, M. H. 

 Beckwith (pp. 3-19). 



Original investigations in entomology will be undertaken as soon as facilities are 

 secured for this line of work. At present, however, the demand in Delaware is — 



(1) For instruction regarding the habits of well-known insect pests. 



(2) For the description of thorougJi ly tested remedies, and of the proper methods of using 

 them. 



For the purpose of obtaining data, seven thousand copies of a circular were mailed 

 to the farmers and fruit-growers residing iu the State. In this circular information 

 was requested relative to the appearance of new insects, as well as to the amount of 

 dauiage to crops caused by the familiar forms. 



Forty difierent species were reported. Those mentioned as being especially abun- 

 dant and causing the greatest injury are noticed iu this bulletin. 



The bulletin contains short compiled accounts of the foUowiug insects : Asparagus 

 beetle (Crioceris asparagi, Linn.), rose beetle {Macrodactylus subspinosus, Fabr.), 

 striped cucumber beetle {Diubrotica vittata, Fabr.), Colorado potato beetle {Doryphora 

 decemlincaia, Say), plum curculio (Conotrachelus nenuphar, Herbst.), codling moth 

 {Carpocapsa pomonella, Linn.), white cabbage butterfly {Pieris rapw, Linn.), goose- 

 berry saw-fly {Xematus ventricosus, Klug.), and tomato worm {Heliothis armigera, 

 Hiib.). 



BULLETIN No. 5, JUNE, 1889. 



The inspection of seed and of stock feed in Delaware, 

 A. T. Neale, Ph. D. (pp. 3, 4). — This introductory article gives a brief 

 account of the work of a force of inspectors recentlj^ organized by the 

 Station to collect samples of seed sold in Delaware. The purity and 

 vitality of the seed thus obtained were tested at the Station. Director 

 Neale calls attention to the fact that a very important result of the 

 work done in fertilizer control by American and European stations has 

 been to show that "farmers need teachers quite as much as they need 

 detectives," and implies that this will jirove equally true in regard to 



