ECONOMIC ZOOLOGY ENTOMOLOGY. 551 



the (lust must have nioro frequent iipplicatiniis than either the self-boiled or 

 paste to pro<luce anything like equal results." 



No detiuite results were obtained from the tests with apples and potiitoes. The 

 experiments with corn show: "(1) That when the poisonous dust is properly 

 placed on the corn silks and maintained throughout the period the silks are 

 green and succulent, more than 75 per cent of the normal damage is prevented, 

 (2) that any machine which distributes the dust in such a fashion as to produce 

 only a light coating on exposed parts is of little or no value in corn earworm 

 control, (3) that the dust must be maintained throughout the period during 

 which the silks are green and succulent, (4) that the 50 per cent mixture is the 

 most efficient, because its physical condition is better (drier) than the 75 per 

 cent, and has more strength than the weaker mixture." 



Work with the iieach borer carried on in continuation of that of the previous 

 year (E. S. R., 30, p. 355), in which each of 2S 5-year-old peach trees was coated 

 with tree tanglefoot from the point where the large roots came off to a point 6 in. 

 above the surface of the soil, showed that although in common with other sub- 

 stances the tanglefoot reduces the infestation, it not only fails to prevent it com- 

 pletely, and if usetl regularly is likely to destroy the trees. 



In summing up the results of fly work the author states that " the fly control 

 campaigns in the city of New Brunswick, on the college general farm, and on the 

 college dairy farm, have shown: (1) The need of cooperation betwen the fly- 

 suppressing agency and the persons running the premises on which a fly cam- 

 paign is in progress; (2) the utter insufficiency of the Hodge and other fly 

 traps as a complete control— demonstration of the fact that they are at best 

 but an adjunct; (3) the impracticability of obtaining anything lil^;e a general 

 adoption of the Hodge garbage can trap and its ineffectiveness as a destroyer 

 of the house fl.v, the really serious carrier of infection; (4) the surpassing 

 importance of eliminating the fly-breeding places ; (5) the usefulness of iron sul- 

 phate and carbon bisulphid as larvicides; (6) the effectiveness of sulphur as a 

 destroyer of adult flies; (7) the effectiveness of even incomplete work on fly 

 control." 



A report upon the mosquito work for 1!)13 follows (pp. 710-780). The author 

 states in general that the work has proved as successful as the seasonal condi- 

 tions would permit. A brief account of the occurrence of the mosquitoes of the 

 year is included. 



Summary of entomolog'ical information during 1914 (Agr. Neics [Barba- 

 dos}. IS (I91.'f). No. 330. pp. J,08. J,09).—A brief review. 



Proceedings of the Entomological Society of British Columbia (Proc. Ent. 

 Soc. Brit. Coluiiihia, n. ser., No. 4 (lOlJ^). pp. 83). — Among the more important 

 papers here presented are the following: Insect pests of the year in the Vic- 

 toria District, by E. H. Blackmore (pp. 11-14) and in the Okanagan District, 

 by W. H. Brittain (pp. 14-10) ; those economically important in the lower 

 Fraser Valley. Vancouver District, by R. C. Treherae (pp. 10-33) ; Bee Dis- 

 eases in British Columbia, by F. D. Todd (pp. 33-36) ; The Tent Caterpillar 

 (Malacosoma erosa), by T. Wilson (pp. 3()-3S) ; Pi-eliminary Note on the Work 

 of Eriophyes sp. upon Apples, Apricots, and Plums (pp. 38, 30), and Ants as 

 Fruit Tree Pests (p. 30), by W. H. Brittain; Notes on the Life Histories of 

 Bloodsucking Diptera of British Columbia, with Special Reference to the 

 Tabanld?e, by S. Iladwen (pp. 46-40) ; A Review of Applied Entomology in 

 British Columbia, by R. C. Treherne (pp. 67-71) ; and Mites, Their Classifica- 

 tion and Habits, with Some Observations on Their Occurrence in the Okana- 

 gan, by J. S. Dash (pp. 71-78). 



A preliminary survey of forest insect conditions in British Columbia, J. M. 

 SwAiNE (Canada E.rpt. Farms Bal. 17 (lOl.'f), 2. ser., pp. ^J, pis. 2, figs. 22). — 



