ENTOMOLOGY. »» i 



of inset'ticides, Huc;h as Paris <rreeii, London purjile, arsenite f)f lime, kerosene in 

 eiuulsion and in nieclianical mixture with water, whale-oil s^oap, carhon binulphid, 

 gasolene, calcium carbid, tobacco, sulphur, and lime. 



Some garden pests, W. W. FKiKiGATT {Agr. Gaz. New Suutlt Wules, 13 {1902), 

 No. 12, pp. 1167-1173, pU. 2). — Brief notes are given on the habits, life history, and 

 means of comT)ating Helix asipenfa, SIphnnnphnra ros.r, fluted scale, red orange scale, 

 and various species of butterflies which are more or less injurious to ganlen crops. 



Combating- the enemies of asparagus, K. Sajo {PrometJinis, 13 {1902), Nos. 

 Go6, pj>. 497, 498; 657, pp. 52 1-524) ■ — Notes are given on the habits and life history 

 of Platypanea pijeciloptera, the 1 2-spotted and 14-spotted asparagus beetles, asparagus 

 rust, and Agromyza mnura. 



Codling moth, R. A. Cooley {Montana Sta. Bid. 42, pp. IS). — The codling moth 

 has not yet become established in commercial orchards in Montana. The insect has 

 l^een found in Missoula, Thompson Falls, Helena, and Kalispell. According to the 

 author's observations larvfe of the first brood were found in 50 out of 323 apples, and 

 when the second brood appeared 115 out of 144 apples were infested, while the 

 amount of destruction was i)laced at about 51 per cent. It is believed that birds 

 assist considerably in destroying these insects. In the Bitter Root region an insect, 

 which was apitarently not codling moth, was found infesting the aj)ple. Notes are 

 given on the habits antl life liistory of codling moth. In Montana it is believed that 

 there are 2 broods per year. Paris green is recommended as an insecticide, together 

 with the use of bauds. 



Codling moth, K. Sa.io {Promethem, 13 {1902), Nos. 661, pp. 577-580, fig. 1; 662, 

 pp. 593-596). — A popular account is given of the habits, life history, and means of 

 combating the codling moth as shown by the experimental work of investigators in 

 various countries. 



Biological investigations of the nun (Lymantria monacha), its parasites 

 and diseases, 8. Bengtsson {Ent. Tidskr., 23 {1902), No. 2-3, pp. 125-194, pl-f. 2).— 

 On account of the unusual destruction caused by the nun in various parts of Sweden 

 an investigation of the habits of this insect with special reference to successful means 

 of combating it was instituted by the Swedish government. The present report con- 

 tains an extensive account of the life history and habits of this insect, the bacterial 

 and fungus diseases which have been found attacking it, and notes on the various 

 insects which live upon it as parasites. As a result of these investigations it is con- 

 cluded that the only successful way of fighting the nun on a large scale consists in 

 l)an(ling the trees with some sticky preparation and utilizing badly infested trees for 

 fuel and manufacturing purposes. 



The brown-tail moth in Massachusetts, A. H. Kirklaxd ( Trans. Mmsachusetis 

 Hort. Soc. 1902, I, pp. 12-21). — The author discusses the early European history of 

 this insect and an account is given of its introduction and spread in America. The 

 best results in controlling the insect have been obtained from the use of arsenate of 

 lead and kerosene enuilsion. 



The woolly aphis on the roots of apple trees, C. Ritter {Ztschr. Pflanzenkrank., 

 12 (1902), No. 1-2, ])p. 7-10, pi. 1). — Brief notes ai'e given on the appearance of galls 

 caused by woolly aphis on the roots of apple trees. The insects were observed also 

 on the roots of young pear trees. The author knows of no effective means for pre- 

 venting the ravages of this insect provided it should attack yomig trees. The use of 

 lime is recommended, together with the destruction of badly infested trees. 



The mango shield scale {Agr. News {Barbados], 2 {1903), No. 21, p. 40). — Notes 

 are given on Lecanium mangiferse, which is becoming rather injurious in the West 

 Indies. The chief natural enemy of the insect is a fungus disease which manifests 

 itself as a white mold upon the dead scales. 



Distinctive characteristics of the species of the genus Xiecanium, W. C. 

 Thro {New Yuik Conidl tSta. Bui. 209, pp. 201-221, jjIs. 5). — Detailed notes are given 



