ECONOMIC ZOOLOGY ENTOMOLOGY. 955 



7, />/>. 3!>()--i!)-i ) .■ — In Alixcri.-i I lie hirvM" of a lly liad alroady liooii <)1)S(m-vi'(1 as a 

 imrasilc on f^rasslioppors and rofcrrod to the siiecics Aiithoiimia catia. The 

 aiitlinr observed another s])eeies of tliis fienus, which is heIiev(Ml to ho A. cili- 

 cnini. as a jiarasito on l^cliistocrrcd (inicricdiid in the Aruenline Kepnhlic. It is 

 believed tliat tiiis species has a wide distrilmtion. 



The apple and pear mites, I'. J. rAKKorr. II. K, IIodokiss. and W. J. Schoene 

 (\cir Ynrlc Stale Sta. Hii}. ..As'.f, pp. .^Sl~.iis. /*/.v. 10). — In a study of the mites 

 on apple and jiear leaves. ."> s|iecies have been reco.i^nized : Eriophycti niallfolur, 

 /•-'. /'//'•/. /.'. intri niri'ihihi. I'll !/lluci>plcs sell lech tcudulK and Epitrimerux pjirl. 

 r:ri<>plii/<s pari, coimnonly Unown as the leaf-blister nute, is the most abundant 

 and the most injurious species. The structure, habits, and systematic position 

 of these pests are discussed and a list is given of all American species of the 

 family with their host plants and an analytical table for their identification. 



I'articidar attention is given to /■/'. pjiri, which produces the well-known 

 blister spots on the leavers of jiear and apple trees. On ai)ple trees the blisters 

 may have a reddish tinge, but usually are less brilliant. The mites injure the 

 iruits and fruit stems as well .-is the leaves, and have been found on 250 A'arie- 

 ties of apples. After a little experience the injuries caused b.y mites may be 

 readily distinguished from those due to spraying or to the apple rust. A para- 

 sitic mite was found preying upon the blister mite and is described as a new 

 species under the name HciK.s poiiii. 



In exiu'riments on apple trees a comparison was made between kerosene oil, 

 miscilde oil. kerosene emulsion, whale-oil soap, and the sulphur washes, the 

 latter being prepared according to various formulas. On account of its harm- 

 iessness, cheapness, and efficiency, kerosene emulsion diluted with 5 parts of 

 water and applied during the dormant season is recommended as the 'most 

 practical remedy for the treatment of apple orchards infested with the blister 

 ndte. In pear orchards this pest may be controlled by proper pruning and by 

 s])raying with k(>rosene emulsicm in the fall or spring. 



The blister-mite and its allies, F. H. Hai.l et al. (Xcir York Htafc St<i. Bill. 

 ;J^'-f. popiiliir (■(!.. lip. Id. fii/s. ()). — -V popular summar,y of the above bulletin. 



The aphides affecting the apple, A. L. Quaintance (T. »V. Hcpf. Ayr., Bur. 

 Ent. Cirv. <S7, jip. JO, fif/n. ^'). — The aphides which are known to attack api)le 

 trees in the ITnited States are Schl::<)ncHrn liiiiii/cra, Sipliocori/nc avciKr, .[phis 

 ittali, and Aphis iiiaUfolur. The a]tpearance, life history, and distribution of 

 each of these i)ests are briefi.v discussed. 



Little 1 practical good has resulted fi-om the use of strong lye water, whale- 

 oil soaj). kerosene, or crude petroleum in the control of apple ai)hides. Lime- 

 sulphur wash gave good results in experiments by J. M. Aldrich. Formulas 

 are given for the preparation of some of these insecticides. 



The San Jose scale, A. F. Conkadi (Texas Sta. Bui. S7. pp. 11, fi;/.s. }). — A 

 brief po])Ular account of the ai)pearance, life history, habits, and food plants 

 of the San Jose scale and ol the means of combating it. Direc'tions are given 

 for the prei>aratinii and application of lime-sulphur wash, whale-oil soap, 

 kerosene, crude oil. and other insecticides. The lime-sulphur-salt wash, pre- 

 jiared according to the formula IH-la-Ll-oO and boiled for 45 minutes, gave 

 excellent results. A lime-sulphur wash with the same proportion of lime and 

 sulphur also proved very .satisfactory. 



The San Jose scale and experiments for its control, II. T. Febnalo (Massa- 

 (hiixctt.s Sill, liiil. IK), pp. .Li. ////. I). — ^Brief historical and biological notes are 

 given on this jtest. The author summarizes the results of spraying experiments 

 to coiitrnl the S:in Jose scale frniii 1It02 to date. Sonu> of this material is repro- 

 duced from Bulletin SG of the station ( F. S. I'., 14. p. I0!t5). 

 34021—07 5 



