440 



JOURNAL OF ECONOMIC ENTOMOLOGY 



[Vol. 8 



directed b}^ Mv. E. R. Sasscer. Mr. A. D. Borden, who for the past year has been 

 making life-history studies of the citrus mealy bug at Pasadena, Cal., has been trans- 

 ferred to Washington to assist in this project. The insect enemies of hothouse cul- 

 tures of truck crops and small fruits, such as tomatoes, lettuce, cucumber, eggplant, 

 strawberries, mushrooms, etc., will remain under the direction of the Office of Truck- 

 Crop and Stored-Product Insect Investigations, as formerly. In connection with 

 this new project Mr. Sasscer will cooperate with the Bureau of Plant Industry and 

 with the officials in charge of the Botanic Garden and the propagating gardens and 

 greenhouses of the War Department. 



Mr. T. E. Snyder, Bureau of Entomology, returned June 23, from a ten days' 

 trip through the southern Appalachian Mountains in Virginia, Tennessee, and 

 North Carolina to study the present status of infestation by the southern pine beetle 

 {Dendroctonus frontalis) and to collect material; also to study the blight on white- 

 pine twigs and the galls on spruce caused by a species oTChermes. In the course of 

 his trip, the M^hite Top Purchase Area in Virginia and Tennessee was visited, where 

 the Forest Service, cut and burned the bark in March, 1915, on approximately 1,600 

 infested pine trees. Mr. Snyder found only three trees containing broods of D. 

 frontalis, and these trees were not in the immediate vicinity of treated areas, which 

 indicates the success of the control work. In the study of the Che -mes blight the 

 stands of spruce on White Top Mountain in Virginia, elevation 6,711 feet, were 

 examined, as well as the white pine in the vaUeys, but no evidence of the pine twig 

 blight or new Chermes galls were found in the localities where both were so common 

 last year. 



Mr. F. C. Craighead, Bureau of Entomology, spent about two days at Chillicothe? 

 Ohio, examining a large poplar plantation for insect damage and arranging for exper- 

 iments in the control of the borer and other insects affecting the poplar. Also three 

 days at Kanawha Station, W. Va., where he was successful in collecting a large series 

 of aU stages of the very rare cerambycid beetle {Leptura emarginatus) and making 

 some interesting new observations on hickory, ash, and oak insects. Mr. Craighead 

 has just returned from a trip to Boston to study the results of experiments in the 

 control of Agrilns hilineatus, which is responsible for the death of oak trees defoliated 

 by the gypsy moth. He reports that the experiments in disposing of the infestation 

 in the principally infested trees has had a marked effect in reducing the number of 

 dead trees. He also spent a day on Long Island inspecting the control work con- 

 ducted on an estate against Scolytus quadrispinosus on hickory trees and Agrilus 

 hilineatus on oak trees defoliated by cankerworms and tent caterpillars. He found 

 that the control work had been done according to recommendations and with apparent 

 success. 



Mailed August 16, 1915. 



