56 EXPERIMENT STATION RECORD. 



lu a paper entitled Notes on Cranberry Pests, H. J. Franklin presents in- 

 formation gained dnring tlie season of 1907 while studying the life histories of 

 cranberry bog insects on Cape Cod (pp. 4G-48). Peronea minuta is said to be 

 two-brooded in Massachusetts and three-brooded in New Jersey. The winter 

 brood of moths in ISIassachusetts is slate-gray in color, but the summer brood is 

 orange-red. In New Jersey also the winter brood is slate-gray, but the two 

 summer broods are both orange-red in color. Differences in habits and colora- 

 tion of the larvfe in the two States are also discussed. The difference in the 

 habits of the fireworm (Eudemis laccimana) on Cape Cod and in Wisconsin is 

 considered as probably due to the variation in the dampness of the bog surfaces. 

 Attention is called to the fact that on the strictly dry bogs of Cape Cod certain 

 undetermined species of ants collect both yellow-headed cranberry worms and 

 fruit worms in large numbers, and the possibility of developing them as a means 

 of combating these pests on dry bogs is mentioned. 



Under the title, An Example of Forest Insect Control at a Profit (pp. 49-5.3), 

 A. D. Hopkins discusses an experiment in which a quite extensive outbreak in 

 Colorado of Dendroctonus beetles was controlled without expense. This was 

 brought about by methods of lumbering based upon a knowledge of the life his- 

 tory of these beetles. Notes on Empoasca mali were presented by F. L. Wash- 

 burn (pp. 54-58), in which the fall-laid egg, oviposition during the summer 

 months, food plants, different stages and number of broods, and economic sug- 

 gestions are considered. A general discussion of the subject. Do We Need the 

 Insectary? opened by E. D. Sanderson, was entered into by a number of ento 

 mologists (pp. 59-64). S. A. Forbes spoke briefly of Methods of Rearing White 

 Grubs (pp. G4, 65). 



[Report of the biologist for 1907], H. W. Smith (Ann. Rpt. Sec. Agr. ]\'ova 

 Scotia, J 907, pt. 1, pp. 20-33). — The year under report is said to have been very 

 favorable to insect development in Nova Scotia. Inquiries were received from 

 every part of the province concerning injurious insects, particularly the tussock 

 moth, tent caterpillar, fall webworm, and the red-liumped api)le-tree caterpillar. 

 As many nests of the brown-tail moth were found in 4 counties during the 

 spring of 1907, studies were made of its life history, habits, and distribution in 

 Nova Scotia. A synopsis is also presented of the life histories of a number of 

 other injurious insects. 



Note on food habit of Liotropis contaminatus, H. Osborn (Ent. News, 20 

 (iVOO), No. Jf, p. 177). — This pentatomid has been taken upon Opuntia fulgida 

 near Tucson, Ariz. The author considers this cactus as probably the native 

 food plant of the species. 



Notes on CEcanthus, C. O. Houghton (Canad. Ent., J/l {1909), No. Jf, pp. 

 113-115). — The author concludes from observations upon CEcanthus niveus that 

 tree crickets feed almost entirely upon animal matter such as plant lice, etc. 



The Hessian fly in Georgia, E. L. Worsham and A. C. Lewis (Ga. Bd. Ent. 

 Circ. 7, pp. S, figs. 6). — The Hessian fly is said to be the only insect that seri- 

 ously injures wheat in Georgia. As a rule the percentage of wheat infested is 

 low, but in seasons favorable to the fly it may be very great. At Adairsville in 

 1905 the percentage of infestation in one field was 89.8. There are 2 broods of 

 this fly in Georgia. 



" Notes made on the life history in the field and laboratory, so far as worked 

 out, are as follows : The spring brood emerges between February 21 and March 

 23. The dates of emerging each year, as far as observations have been made, 

 are as follows: February 21, 1905; February 26 to March 9, 1906; March 12 to 

 23, 1908. The fall brood emerges between September 28 and October 30. In 



1904 they began emerging on October 18 and continued up to October 30. In 



1905 they were found flying in a wheat fleld at Ringgold, Ga., on October 23. 



