512 



Lyon (H. L.)- Notes on Sugar Cane Culture in Java. — Hawaiian 

 Planters' Record, Honolulu, xxi, no. 2, August 1919, pp. 109-128, 

 12 figs. 



In the course of this paper it is remarked that Java planters do 

 not advocate the stripping of their cane as a cultural practice, but 

 they find it necessary in certain cases in order to stop the ravages 

 •of the stem shield-scale, Chionaspis madiunensis, Zehnt. This Coccid 

 attaches itself to the surface of the internodes and, when sufficiently 

 numerous, causes considerable injury to the canes. 



HuMSEY (W. E.). Peach Tree Borer. — Canadian Horticulturist, 

 Toronto, xlii, no. 9, September 1919, p. 222. 



Experiments made in West Virginia with sprays of miscible oil or 

 an emulsion of Avenarius carbohneum and soap appeared to be effective 

 against the peach-tree borer [Aegeria exitiosa], though further results are 

 necessary to prove their efficacy against this pest. The best time for 

 spraying is the end of September or beginning of October when the young 

 caterpillars are just beneath the bark. After removal of the soil 

 jound the base of the tree the bark should be allowed to dry and then 

 sprayed with the oil at the rate of one part to eight parts of water 

 at a pressure of at least 100 lb. to about 6 or 8 inches above the general 

 surface level, the soil being then replaced. 



Work in Connection with Insect and Fungus Pests and their Control. 



— Rept. Agric. Dep)t. Antigua, 1917-18 ; Barbados, 1919, pp. IS- 

 IS. [Received 4th October 1919.] 



Grubs of the brown hardback beetle (Lachnosterna sp.) caused great 

 damage to sugar-cane during the year under review. The planting 

 of maize as a trap-crop has been suggested and has proved useful on 

 the few estates where it was tried. 



Pests attacking cotton included : Alabama argillacea, against which 

 regular applications of Paris green and lime were of little or no avail 

 owing to continued rain. Dysdercus sp. (cotton-stainers) were abundant 

 and HeliotJiis obsoleta {armigera) (boUworm), Saissetia nigra (black 

 scale), HemicJiionaspis minor (white sCale) and Eriophyes gossypii 

 (leaf-blister mite) were also reported. The flower-bud maggot, 

 Contarinia gossypii, has not been noticed for several years in Antigua. 

 Early planting is suggested as the best remedial measure should this 

 midge make its appearance. 



Lepidosaphes beckii (purple scale). Coccus viridis (green scale), 

 ChrysompJialus aurantii (red scale), Chionaspis citri (white scale) and 

 Diaprepes (ExopJithalmus) esuriens were reported on limes, the 

 weevil being particularly abundant. The infestation of sweet 

 potatoes by the weevil, Euscepes {Cryp)torrhynchus) batatae, has increased 

 during the year. 



Jegen (G.). Beitrage zur Kohlweisslingsbekampfung. [Contribu- 

 tions to the Work of combating the Cabbage Butterfly.] — 

 Landwirtschftl. JaJirbuch d. Schweiz, Berne, xxxii, no. 4, 1918, 

 pp. 524-550. [Received 4th October 1919.] 



The role played by the parasites of Pieris brassicae, which caused 

 severe loss in Switzerland in 1917, has been investigated at the 



