68 



Andrews (E. A.). Insect Control. — Rept. Proc. 3rd Entom. Meeting, 

 Piisa, February 1919, Calcutta, i, 1920, pp. 23-32. 

 The necessity is emphasised of a thorough knowledge of the hfe- 

 history of an insect, its relation to the plant attacked, and the response 

 of the plant under cultivation to environmental conditions and to 

 varying forms of existing agricultural practice, before the apphcation 

 of remedial measures. Instances of the success of cultural remedial 

 measures against insects are discussed ; these include collar-pruning 

 of tea to prevent attacks by termites, continued hoeing and forking 

 against Melolonthid and other beetles, and improved drainage against 

 Tetranychiis biociilatus, W. M. (red spider). Sprays against the latter 

 must contain something to break down the webs with which these 

 mites protect themselves. Lime-sulphur containing much suspended 

 matter is effective in this respect. Insecticides may prove successful 

 against Helopeltis theivora, if applied when the bulk of the insects are 

 in the young stages. 



Fletcher (T. B.). Annotated List of Indian Crop Vesi^.—Rept. Proc. 



3rd Entom. Meeting, Pusa, Fehniarv 1919, Calcutta, i, 1920, 



pp. 33-314, 6 plates. 



It is not possible in an abstract to do more than notice this important 



list of Indian crop pests. It records over 1,100 species, and includes 



brief notes on their habits and food-plants as well as suggestions for 



remedial measures. 



Ramakrishna Ayyar (T. V.). Some Insects recently noted as injurious 



in South India. — Rept. Proc. 3rd Entom. Meeting, Pusa, February 

 1919, Calcutta, i, 1920, pp. 314-328, 12 plates. 



This paper forms a supplement to Mr. Fletcher's book on South 

 Indian insects [R.A.E., A, iii, 146], and contains brief notes on some 

 112 species arranged under their natural orders. 



Anstead (R. D.). Note on the more Important Insect Pests of Planting 

 Districts of South India and the Methods of Control used, 1917-18. 



— Rept. Proc. 3rd Entom. Meeting, Pusa, February 1919, Calcutta, 

 i, 1920, pp. 328-332. 



The pests dealt with are arranged under the crops attacked. On 

 coffee. Coccus viridis colemani is distributed chiefly by the ants 

 Cremastogaster sp. and Plagiolepis longipes. During the north-east 

 monsoon these scales may be blown as far as 90 yards. The removal of 

 ants and the spraying and brushing with fish-oil-resin soap at the rate of 

 1 lb. to 2 gals, water have proved efficient remedies. The fungi that 

 infest them, Cephalosporium lecanii and Empusa lecanii, may be 

 encouraged by distributing infected branches. Saissetia hemisphaerica, 

 Pulvinaria psidii and other scales are controlled by periodical spraying. 

 Pseudococcus (Dactylopins) citri occurs on coffee and Erythrina litho- 

 sperma. This scale and the cockchafer Holotrichia conferta may be 

 destroyed by the use of "' Apterite," a soil disinfectant apparently 

 containing crude naphthaline and pink carbolic powder, applied at 

 the rate of 2 cwt. per acre. Scrubbing the stems of coffee bushes in 

 October and November with coconut husks proved an efficient remedy 

 against Xylotrechus quadripes (coffee borer). 



Tea pests include : — Helopeltis, against which the usual remedial 

 measures were used ; Thosea cervina, controlled by collection of cocoons 



