397 



Species particularly injurious to greenhouse plants are Eriococciis 

 azaleae (azalea bark louse), Pseudococcus adonidum (long-tailed mealy- 

 bug), P. citri (short-tailed mealy-bug), Coccus hesperidum (soft scale), 

 Saissetia hemisphaerica (hemispherical scale), S. oleae (black scale), 

 Diaspis hoisdtivali, Hemichionaspis aspidistrae, Aspidiotus hederae 

 (oleander scale), yl. mj!)aA; (greedy scale), A.britannicus, Chrysomphalus 

 aonidum (circular scale) and C. dictyospermi. 



Although Gossyparia spuria (European elm scale), Eulecaniiim 

 (Lecaniitm) nigrofasciaium (terrapin scale), Aspidiotus forbesi (cherry 

 scale) and A. juglans-regiae (English walnut scale) are known to 

 occur in Indiana, they have not yet been recorded as of economic 

 importance. 



Various remedial measures, such as fumigation and spraying, are 

 briefly discussed, both for use against the species found in the field 

 and in greenhouses. 



Ehrhorn (E. M.). Report of the Chief Plant Inspector. — Bicnn. 



Rept.. 1919-20, Hawaii Bd. Agric. & Forestry, Honolulu, 1921, 



pp. 75-113, 7 plates. [Received 14th June 1921.] 



An account is given of the plant inspection work during the period 



under review, with a list of the existing quarantine notices and 



restrictive orders. 



A list is given of the pests occurring in other countries, the 

 introduction of which into the Territory of Hawah must be guarded 

 against. 



FuLLAWAY (D. T.). Report of Entomologist. — -Bienn. Rept., 1919-20, 

 Haivaii Bd. Agric. & Forestry, Honolulu, 1921, pp. 69-73, 

 3 plates. [Received 14th June 1921.] 



The work carried out during the period under review is discussed 

 [of. R.A.E., A, vih, 375]. In September 1920, steps were taken to 

 investigate the biology of Syagrius fulvitarsis (Australian fern weevil) 

 with special reference to its natural enemies in Australia. Arrange- 

 ments have been made to co-operate with the Hawaian Sugar Planters' 

 Association Experiment Station in introducing parasites of the butterfly, 

 Lampidcs {Lycaena) baetica (bean pod borer), and insects producing 

 fertile seeds of Ficus spp. 



The establishment of the cockroach parasite, Dolichurus stantoni, 

 is recorded \loc. cit. vii, 412], and a further attempt to acclimatise 

 Pteromalus puparum, an important pupal parasite of Pieris rapae, 

 was made. 



Un nuevo y muy eficaz Insecticida. La Cloropicrina. [A new and highly 

 efticient Insecticide, Chloropicrin.l — Bol. Agric, Ind. y Com., 

 Guatemala, i, no. 1, Januarv 1921, pp. 25-26. [Received 14th 

 June 1921.] 



The data here given on chloropicrin as an insecticide are taken 

 from a source already noticed [R.A.E., A, vi, 491]. 



Valor relativo de los Insecticidas y Fungicidas. [The Relative Value 

 of Chemicals used against Insects or Fungi. ]-t-jBo/. Agric, Ind. 

 V Com., Guatemala, i, no. 1, January 1921, p. 27. [Received 

 "l 4th June 1921.] 



In preparing Bordeaux mixture it must be remembered that 1 lb. 

 of the metallic copper equals 3 • 93 lb. of copper sulphate, 3 • 14 of copper 

 oxide, and 2-56 of copper hydroxide (Cu(CH)2). This will enable a 



