• 556 EXPEKIMENT STATION EECORD. 



[Circulars of the Arizona Horticultural Commission] (Ariz. Hort. Com. 

 Circs. 1, pp. 4; 2, p. 1; 3, p. 1; 4, pp. 2; 5, pp. 2; 6, p. 1; 7, p. 1; S, p. 1; 9, p. 1 ; 10, 

 p. 1; 11, pp. 2; 12, pp. 2; 13, pp. 2; 1^, pp. 3). — These circulars bear the fol- 

 lowing titles: No. 1, Extracts from Horticultural Inspection Law; Nos. 2-13, 

 articles by A. W. Morrill on Arizona Citrus Pests and the Importance of the 

 Horticultural Law, Influence of Climatic Conditions upon Insects, Citrus Pests 

 in Florida and California, The Control of Citrus Pests, Mites or So-called 

 Spiders Affecting Citrus, Mealy Bugs Affecting Citrus, The Long and the 

 Purple Scales in Florida and California, Is Arizona Immune to Purple Scale, 

 California Red and Yellow Scales, The Black Scale, Some Citrus Scale Pests 

 of Minor Importance, and The White Fly Enemies of Citrus ; and No. 14, Regu- 

 lations Concerning the Importation of Nursery Stocks and Other Plants into 

 Arizona. 



Insects [in Nova Scotia], H. W. Smith (Ann. Rpt. Sec. Agr. Nova Scotia, 

 1909, pt. 1, pp. 26-34) • — The occurrence of injurious insects in Nova Scotia in 

 1909 is briefly noted. 



Cooperative laboratory for the study of sugar cane insects, D. L. Van 

 Dine (La. Planter, 4i (1910), No. 20, pp. 420-422) .—Following a brief historical 

 review, the investigations now being conducted by the Bureau of Entomology 

 of this Department in cooperation with the Louisiana stations are considered 

 and the more important sugar cane pests, namely, the sugar cane borer, sugar 

 cane beetle, sugar cane mealy bug (Psenducoccus calceolarioe) , and the Argen- 

 tine ant discussed. 



It is believed that systematic inspection and the treatment of infested cuttings 

 will remove the danger of introducing dangerous cane insects from one locality 

 to another or from abroad. Experiments are now being made to determine the 

 effect of various treatments on the germination of seed cane, particularly as 

 relating to the mealy-bug. There is thought to be a direct relation between 

 insect injury and the prevalence of fungus diseases of sugar cane. 



Apple tree insects of Maine, Edith M. Patch and O. A. Johannsen (Maine 

 Sta. Doc. 383, pp. 68, pU. 4, figs. 35). — Brief accounts are given of the more 

 important insects attacking the apple in Maine and of the remedial measures 

 applicable. 



Grasshoppers and their control, L. M. Geismar (Michigan Sta. Spec. Bui. 

 53, pp. 5-7). — Considerable damage to grass and oats by grasshoppers was 

 reported during the seasons of 1908 and 1909 in those portions of the Upper 

 Peninsula where soils of a sandy nature predominate. Fall plowing sandy soils 

 wherever it is possible offers an excellent remedy by burying the egg pods, thus 

 preventing them from hatching, by breaking open some, so that moisture can get 

 in, and by leaving still others near the surface where birds or shrews can get 

 them. The Criddle mixture which is made of horse droppings, salt, and Paris 

 green has been tested and found to be the cheapest method for the wholesale 

 destruction of grasshoppers. Results of tests made iu 1909 indicate that 

 practically all damage to crops can be avoided by applying this mixture early 

 in June while the grasshoppers are still quite small. 



Third annual report of the committee of control of the South African 

 Central Locust Bureau, C. P. Lounsbury (Ann. Rpt. Com. Control So. African 

 Cent. Locust Bur., 3 (1909), pp. 68).— The conditions relative to migratory 

 locusts iu South Africa which existed during the locust season of 190S-9 are 

 discussed. Locust bix'ds. the most important of the checks on South African 

 migratory locusts, were particularly abund;int, the leading species being the so- 

 called large (storks) and small (pratincoles) locusts birds, none of which 

 breed in South Africa. 



