425 



also succeeded in infecting, in the laboratory, many other insects 

 besides 0. rhinoceros with M. anisopliae, whence it might be inferred 

 that this fungus should be useful against other pests, but only in 

 countries with a warm, damp climate. 



Baker (C. F.). Mango Pests in Singapore. — The Gardens^ Bull, Straits 

 Settlements, Singapore, ii, no. 4, 4th July 1919, pp. 115-116. 



The inferior quality and quantity of Singapore mangos is partly 

 due to the ravages of a Psyllid which produces numerous galls on 

 the leaves. The honey-dew secreted by these insects probably 

 accounts for the growth on the foliage of a sooty black fungus 

 {Meliola fnangiferae). 



CoRPORAAL (J. B.). Notiz ubBi die beiden Roepke' schen Gambirschad- 

 lichen Capsiden. [A Note on the Gambir-infesting Capsids 

 described by Roepke.] — Tijdschr. Entoniologie, The Hague, Ixii, 

 no. 1-2, 15th July 1919, pp. 107-108. 



This note supplements Roepke' s description of Hehpeltis suma- 

 tranus and Hyalojpejplus uncariae [see this Review, Ser. A, iv, p. 481] 

 injuring Uncaria gamhir in Sumatra. H. sumatranus is the more 

 important species [see this Review, Ser. A, vi, p. 38]. 



Velu (H.). La Lutte contre les Acridiens au Maroc. Troisieme 

 Campagne d'Exp6rimentation de la M6thode biologique. — Bull. 



Soc. Path. Exot., Paris, xii, no. 7, 9th July 1919, pp. 362-364. 



Further experiments made to control Schistocerca peregrina, 01., 

 by the biological method confirm the results obtained in 1916 [see 

 this Review, Ser. A, v, p. 99] viz. : — That the end of the 3rd instar 

 is the most favourable time for contamination and practically the 

 only susceptible period. This method is still in the experimental 

 stage and can certainly not be considered of any great economic 

 importance at present, as its application is too restricted. It is 

 suggested that the State should undertake measures to insure the 

 destruction of locusts immediately upon the appearance of invading 

 swarms in the South, as one individual destroyed then implies the 

 suppression of 500 to 1,000 later. This may be done by various 

 methods, all of which should be employed at night. 



DuFRENOY (J.). Les Mycoses momiflantes de Chenilles processionnaires 

 des Pins d'Arcachon. — C.R. Soc. Biol., Paris, Ixxxii, no. 24, 26th 

 July 1919, pp. 962-963. 



The action of Beauveria spp. on Cnethocampa pityocampa [see this 

 Revieiv, Ser. A, vii, p. 385] is further dealt with and the process of 

 mummification is described. 



(0596) B 



