35 



RuHMAN (M. H.). Observations on the Control o! the Onion Maggot 



K {Hvlemyia antiqua) — /6;Vft';«, pp. 94-97. [Received 19th November 



1920.] 

 Owing to the success of the use of poison-baits as a means of con- 

 trolUng the onion maggot [Hylemyia antiqua) in Eastern Canada 

 and elsewhere, this method has been tried under varying conditions in 

 British Columbia, but in 1919, in spite of favourable circumstances, 

 it did not prove effective \R.A.E., A. viii, 323]. 



Baikd (A. B.). Some Notes on the Tent-Caterpillar. — Proc. Entom. Soc. 



Brit. Columbia, Victoria, B.C., Econ. Ser. no. 11, April 1920, pp. 97- 



102. [Received 19th November 1920.] 

 A very severe outbreak of tent-cateipillars, Malacosoma pluvialis 

 and M. disstria var. erosa, occurred in British Columbia during 1919. 

 This was probably partly due to the cold weather, which reduced the 

 work of parasites and delayed the appearance of the caterpillars until 

 after the foliage was all out. The life-history is briefly described. The 

 remedial measures advocated include destruction of clusters of eggs 

 and caterpillars, spraying and banding [R.A.E., A, i, 231]. During 

 1919 the parasites, Campoplex {Ameloctonus) validus and Rhogas sp., 

 w^^re present in small numbers. In Victoria the natural enemies 

 successfully reduced the outbreak, but control is far from complete, 

 and the necessity for a co-ordinated campaign against these moths 

 is emphasised. 



RuHMAN (M. H.). Observations on the Use of Poison Baits for the 



Control of Cutworms in 1918. — Proc. Entom. Soc. Brit. Columbia, 



Victoria, B.C., Econ. Ser. no. 11, April 1920, pp. 102-104. 



[Received 19th November 1920.] 



Poison-baits are a most effective means of controlling cutworms, 



provided they are properly mixed and care is taken to prevent contact 



with the plant when applying them. The formula advocated consists 



of 50 lb. of bran and 1 lb. of Paris green mixed in the dry state ; 2 qts. 



of molasses should be dissolved in 1 gal. of heated w^ater to which 



are added another 4 gals, of water and the juice and finely chopped 



pulp and peel of 6 lemons. The Paris green and bran is gradually 



added to this mixture. The bait should be freshly made, and 



distributed immediately after the ground has been prepared, but 



before planting or sowing takes place. In infested areas this bait 



should be apphed every spring to protect the crops. The probable 



cost is about 2s. 6d. per acre. 



Treherne (R. C). General Records of Work carried on in the United 



States and Canada in 1918. — Proc. Entom. Soc. Brit. Columbia, 



Victoria, B.C., Econ. Ser. no. 11, April 1920, pp. 104-107. 



[Received 19th November 1920.] 



This is a compilation of records of measures against insects most of 



which have been previously noticed in this Review. 



A terrivel "Escama Cliineza," Aspidiotus perniciosus, ja foi encontrada 



no Brasil? [Has the San Jose Scale been found in Brazil?] 



— Chacaras e Quintaes, S. Paulo, xxii, no. 4, 15th October 1920, 



pp. 290-291 , 1 fig. 



The presence of the San Jose scale, Aspidiotus perniciosus, is reported 



from the Brazihan State of S. Paulo, and the necessity for immediate 



measures against it is emphasised. 



