130 



GossARD (H. A.). European Corn Borer not in Ohio. — Mthly. Bull. 

 Ohio Agric. Expt. Sta., Wooster, iv, no. 11, November 1919, 

 p. 351. 



What was feared to be an infestation of European corn borer, 

 Pyrausta nubilalis, Hb., in Ohio has now been identified as being due 

 to P. ainsliei, which is an indigenous species that usually lives on 

 swamp flag or cat-tail. 



Hodgson (R. W.). Fighting the Walnut Aphis —Cal Call., Uii, no. 3, 

 1919, p. 53, 1 fig. (Abstract in Expt. Sta. Record, Washington, 

 D.C., xli, no. 5, October 1919, p. 457.) [Received 26th January 

 1920.] 



A successful method of dusting walnut trees as a remedy against 

 the walnut aphis [Chromaphis jiiglandicola] has been worked out by 

 Mr. R. E. Smith, and is described. The mixture used consists of 

 74 per cent, kaolin and 24 per cent, hydrated hme upon wliich 2 per 

 cent, nicotine sulphate has been sprayed. This is blown on to the trees 

 by a dust sprayer driven by a 3 h.-p. gasoline engine. By using 2 to 

 3 lb. per tree, 95 per cent, of the Aphids are killed ; the mixture costs 

 2ld. per lb. and from 20 to 40 acres can be treated in a day. The 

 action of the poison is very rapid, numbers of Aphids falling dead 

 from the trees within a few minutes, while two or three rows of trees 

 beyond the dusted area will also be to a great extent cleared of the 

 pest. Since re-infestation from adjoining orchards is probable, the 

 work should be done co-operatively throughout the community 

 affected. Lead arsenate powder should be added to the mixture as a 

 control for the new codhng moth. 



Wood (R. C.) Entomology. — Rept. Madras Presideucij Depf. Agric, 

 1918-19, Madras, 1919, p. 8. [Received 17th January 1920.] 



Organised campaigns have been undertaken against the " pollu " 

 beetle on pepp^ ; Hispa sp. on rice ; the cotton stem weevil, Pempheres 

 affinis ; Spodoptera sp. and Schoenobius sp. on rice ; and insect pests 

 on coconut. 



Ramakrishna Ayyar (T. V.). Administration Report of the Govern- 

 ment Entomologist for the Year 1917-18. — Rept. Madras 

 Presidency Dept. Agric. 1917-18, Madras. 1918, Appendix vii, 

 pp. 74-77. [Received 17th January 1920.] 



The pests reported during the year include : — Spodoptera mauritia ; 

 Schoenobius bipunctifer ; Hispa sp. and Leptispa sp. on rice ; 

 Prodenia litura on tobacco ; Epilachna sp., the pumpkin beetle 

 (Aulacophora sp.) and white grubs on garden vegetables ; a Pentatomid, 

 Vitellus sp., on oranges ; an Aleurodid on Citrus ; Earias sp. and 

 Pempheres sp. on cotton. 



Insects bred during the year included the stem weevil of cotton 

 {Pempheres sp.), the shot-hole borer of castor {Xyleborus sp.), the 

 brinjal leaf-webber {Pachyzancla aegrotalis), Diacrisia sp. on sweet 

 potato, and Pericallio, ricini on MUlingtonia, 



