328 



out extensively owing to the scarcity of the larvae. The presence of 

 many Tachinid and Acarid parasites will probably materially lessen 

 the numbers of injurious grasshoppers during next season. In the 

 tests for the control of the San Jose scale, lime-sulphur, miscible oils, 

 kerosene emulsion, whale-oil and fish-oil soaps, and soluble sulphur 

 were tried. Kerosene emulsion and hme-sulphur were not effective 

 on peaches on account of the liability to scorch the foliage. Whale-oil 

 soap is useful as a cleanser of large branches, but is not effective on the 

 fohage. An outbreak of Haltica foliacea on grapes and young fruit 

 trees was checked by spraying with lead arsenate (1| lb. in 50 gals, 

 water). The Harlequin cabbage bug {Murgantia histrionica) has been 

 reported from many locahties in the State. 



Jones (L. R.). Control of Potato Diseases in Wisconsin. — Agric. Expt. 

 Sta. Univ. Wisconsin, Madison, Circ. 52, November 1914, pp. 1-19, 

 4 figs. [Received 3rd April 1915.] 



Among the insect pests of potatoes, the common potato beetle 

 {Leptinotarsa decemlineata) is the most injurious. Thorough control 

 of the first brood, which hatches out when the plants have just appeared 

 above the ground, is most important. Spraying with arsenical com- 

 pounds at this time destroys the beetles and young larvae. Flea-beetles 

 appear in midsummer, damaging the leaves by puncturing them with 

 small round holes. Bordeaux-arsenical mixture is generally a perfect 

 control. Migrating swarms of grasshoppers often cause serious injury, 

 especially when other green food is not available ; Bordeaux-arsenical 

 spray or bran mash, consisting of 1 lb. of Paris green and 25 lb. of dry 

 bran moistened with molasses or 2 or 3 gals, of water, is effective. 

 The tobacco horn worm {Protoparce), which is occasionally found, is 

 best controlled by Bordeaux-arsenical spray applied in early summer, 

 or if the caterpillars are numerous and large, by hand-picking. 



Engelhard (F.). Report of Committee on Potatoes. — Seventeenth 

 Texas Farmers' Congress 1914, Texas Dept. Agric., Austin, Bull. 40. 

 November-December 1914. 



The potato-tuber moth {Phthorimaea opercidella) has become well 

 established in parts of Southern Texas. The larva is largely an enemy 

 of stored stock, making it difficult to keep seed for autumn planting. 

 Treatment with carbon bisulphide in air-tight chambers has been 

 fairly successful. Experiments with cold storage seem to show that 

 the insects are rendered dormant and damage practically ceases for 

 the time, but after removal they again become active. 



O'Kane (W. C). State Moth Work : Plan and Progress of Work, 



1913-1914." Circi/for no. 6, State Moth Work, Neiv Hampshire 



State Dept. Agric, Conc&rd, 22 pp., 7 pis. [Received 3rd March 



1915.] 



The suppression of the brovratail and gipsy moths in the State of 



New Hampshire was made a part of the work of the newly organised 



Department of Agriculture and the campaign for the year ending 



3l8t August 1914, was as follows :~(1) Suppression of the gipsy moth 



