70 



labour. The parasitism of Earias is extensive and interesting, heavy 

 hyperparasitism by Cbalcids through Ichneumonids occurring, while 

 five species of Tachmids gave a parasitic infestation of over 10 per 

 cent. Early in the season, before squares form, young larvae of 

 of Diparopsis castanea occur as borers in leaf-stalks and stem ; no 

 parasites of this species have been observed. Heliothis (Chloridea) 

 ohsoleta, F., is parasitised by one Ichneumonid and three Tachinids ; 

 its accessory food-plants are Hibiscus rosa-sinensis, H. esculentus, 

 H. cannabinus, Thespesia sp. (hollyhock), potato, sweet potato, wheat, 

 millet, broom-corn, rice, pigeon-pea, garden-peas, cabbage, cauli- 

 flower, radish, turnip, linseed, zinnias and banana. Prodenia litura, F. 

 (cotton worm), one female of w^hich laid 1,520 eggs in three days, was 

 not so abundant as in the previous season, being parasitised by five 

 Tachinids and two Ichneumonids ; its supplementary food-plants 

 w^ere sweet potato, pigeon-pea, field-peas,' velvet beans, broom-corn, 

 cabbage, cauliflower, etc. Eublemma brachygonia, Hmp., a boll- 

 worm of very minor importance, with similar food-plants, and 

 Anatrachyntis coriacella, Snel., the small pink caterpillars of which 

 feed on the seeds of damaged and almost dry bolls, were also reported. 

 The cotton stainers, Dysdercus nigrofasciatus, Stal, which is by far 

 the most abundant species, and D. intermedius, Dst., which is less 

 important, though abundant in some localities, are preyed upon in the 

 larval and adult stages by Coturnix delegorguei (the harlequin quail). 

 A severe attack by cotton aphis [Aphis gossypii] was practically 

 stopped in August by the predaceous Coccinellids, Chilmnenes lunata, F. , 

 C. quadrilineata, Muls., Alesia geisha, Gorh., and Exochomus nigro- 

 macidatus, Goeze, var. flavipes, Thunb. Several Jassid attacks have 

 been reported, but are of very minor importance. 



Tea and coffee on one estate were attacked by red spider 

 [Tefranychus], for which dusting with flowers of sulphur proved a fairly 

 efficient control, though the treatment did not destroy the eggs. 

 Normal lime-sulphur completely destroyed all stages, but copper 

 sulphate was useless. 



The only tobacco pest of importance was Lasioderma serricorne, 

 which however does not readily attack new tobacco, the reported 

 damage being due to lack of shipping facilities necessitating storage for 

 over a year. 



Richards (R. M.). The Diseases and Pests of the Coconut Palm. — 

 Trop. Agric, Peradeniya, xlix, no. 4, October 1917, pp. 204-213. 



The subject matter of this paper has already been noticed from 

 another source [see this Review, Ser. A, v, p. 521]. 



Dudgeon (G. C.) & Cartwright (W.). Treatment of Cotton in the 

 Field as a Combative Measure against Gelechia attacks. — Agric. 

 Jl. Egypt, Cairo, vii, 1917, pp. 120-133. [Received 18th December 

 1917.] 



The severity of an attack of the cotton pest, Pectinophora (Gelechia) 

 gossypiella (pink bollworm), which subsists in the capsule itself, can 

 be mitigated by inducing the plant to mature these at a date earlier 



