143 



and branches of the jaboticabeira [Myricaria jahoticaha], a fruit tree 

 common in Brazil. The jet must be a powerful one, and should be 

 applied during the dormant period ; a summer spray would be 

 ineffective. 



TowNSEND (C. H. T.). Contra o Pulg:ao lanigero das Madeiras. 

 Contra a Lagarta rosada e o Caruncho do Caule do Algodoeiro. 

 Contra a Sauva. Contra o Caruncho das Bananeiras. [Measures 

 against Eriosoma lanigeritm on Apple ; Platyedra gossypiella and 

 Stem Weevil on Cotton ; Atta sexdens; and the Banana Weevil.] 

 —Bol. Agric, S. Paulo, xxi, no. 6, June 1920, pp. 370-373. 

 [Received 12th January 1921.] 



In reply to enquiries from various parts of San Paulo the measures 

 advised against Eriosoma lanigernm are spraying with kerosene 

 emulsion against the Aphids infesting the trunks of apple trees, or 

 fumigation with a solution of carbon bisulphide in water, poured 

 into a basin dug round the trunk, against those attacking the 

 roots ; against Platyedra gossypiella, the use of disinfected cotton 

 seed, destruction of all debris, and crop rotation ; against Gastero- 

 ccrcodes gossypii, the uprooting and burning of the infested cotton 

 plants and crop rotation ; against At fa sexdens, one litre (If pint) 

 of a solution of sodium c\^anide (1 part by weight of cyanide and 35 

 parts water) poured into the main gallery of the nest — the cyanide 

 must be 96-98 per cent, pure ; against the banana weevil, Spheno- 

 phorus sp., fumigation with carbon bisulphide, as mentioned above, 

 care being taken to retain the fumes by covering the basin. 



Trabut (L.). Le Ver Rose des Capsules du Cotonnier, Gelechia 

 gossypiella. — Bull. Agric. Alger. -Tun. -Maroc, Algiers, xxvi, 

 no. 11-12, November-December 1920, pp. 237-238. 



This article briefly describes the spread of Platyedra [Gelechia) 

 gossypiella into Texas from Mexico, and the measures adopted in the 

 United States against it [R. A.E., A, vi, 543, etc.]. 



Mason (F. A.). The Destruction oS Stored Grain by Trogoderma 

 khapra, Arrow. A new Pest in Great Britain. — Bur. Bio- 

 Technology, Leeds, Bull. 2, 1st January 1921, pp. 27-38, 1 fig., 

 1 plate. 



In July 1920 a serious case of insect depredation in stored malt 

 in a Midland brewery was found to be due to a beetle of Indian origin, 

 Trogoderma khapra, Arrow. Malt placed in bins, after leaving the 

 kiln at a temperature of 180° F. (82° C), never fell below 110° F. 

 (43° C), even after twelve months' storage, though normally the central 

 portion of the contents of a bin cools down in two to three months. 

 On opening out the bins they were found to be swarming with 

 beetles and larvae intermingled with the empty husks. 



There does not appear to be any previous record of appreciable 

 damage in Britain, and Arrow, who reported the appearance of this 

 Dermestid in cargoes of wheat from Karachi and Bombay in 1917 

 [R.A.E., A, V, 359], stated that there w^as no evidence that it could 

 perpetuate itself in Europe. The case mentioned above is not an iso- 

 lated one, for infested material has been obtained from other sources. 



