281 



methods on these hues should be giveu an adequate trial in the case of 

 P. 'pornorum. 



A description of the male of Pitnpla pornorum by Mr. Morley is 

 appended. 



Greex (E. E.). a List of Coccidae affecting various Genera of Plants. 

 ■ — Ann. App. BioL, Cambridge Univ. Press, iv, no. 4, March 1918, 

 pp. 228-239. 



This paper forms the second part of the author's valuable list of 

 Coccids and their food-plants [see this Review, Ser. A, v, p. 519]. 



The Control of Pests of Fruit Trees in Gardens and Small Orchards.— 



Jl Bd. Agric, London, xxv, no. 1, April 1918, pp. 41-53, 3 figs. 



This paper, which has also appeared in the form of Food Production 

 Leaflet, No. 39, gives general recommendations for the control of 

 insect pests of fruit crops. A calendar of the necessary routine work 

 is included. A list shows the crops and pests dealt with, references 

 being given to the various leaflets that have been issued on these 

 subjects. Formulae for insecticides are discussed and instructions are 

 given for spraying, with recommendations for suitable spraying 

 machines. 



PEraERBRiDGE (F. R.) & HusAiN (M. A.). Further Observations on 

 the Capsids which attack Apples.—.//. Bd. Agric., London, xxv, 

 no. 1, April 1918, pp. 54-58, 6 figs. 



The subject matter of this paper has been more fully dealt with 

 elsewhere [see above, p. 278]. 



Imms (A.D.). Tarred Felt Discs for Protecting Cabbages from the 

 Cabbage-root Fly.— J/. Bd. Agric., London, xxv, no. 1, April 1918, 

 pp. 59 60. 



This paper records the successful use of tarred felt discs against 

 Phorhia {Chortophila) hrassicae (cabbage-root fly). These have been 

 described previously [see this Review, Ser. A, v, p. 171]. It is sug- 

 gested that, in the few cases where successful results were not obtained, 

 the follo^^ing points should be observed. The soil at the time of 

 planting should be in a fine, friable condition ; the earth should be 

 worked up shghtlv round the plants so as to form a flattened ridge ; 

 the discs should be apphed, if possible, on the same day that the 

 planting out is done, 



Kuwa Hamadarabai Chosa. [Researches on the Banded Mulberry 

 Midge.]— /ia/i^?/o Mohanjo Kenhjii Hokohu, [Bulletin of Industry, 

 Model Sericidtural Station'], Korea, 15th October 1917, 15 pp., 

 14 figs. 



The very injurious banded mulberry midge {Diplosis quadrifasciata, 

 Niwa), previously only knowTi to occur in the vicinity of Tokyo, first 

 appeared in 1915 in a mulberry field at Suigen in Korea. Since then 

 the damage done by it has become more and more serious and widely 



